From 1f6822dcbea1084dc3fd595fccf3546c305eda73 Mon Sep 17 00:00:00 2001 From: LuChiChick <1084116302@qq.com> Date: Mon, 14 Sep 2026 10:27:29 +0800 Subject: [PATCH] commit for SPI1 config, working on 32 Mbit/s speed with low clock polarity (CPOL) and first edge clock phase (CPHA); PB3 has now been set as SPI1_CS pin with named user label, working on push pull mode. --- Core/Inc/main.h | 2 + Core/Inc/spi.h | 52 + Core/Inc/stm32g0xx_hal_conf.h | 2 +- Core/Inc/stm32g0xx_it.h | 1 + Core/Src/gpio.c | 18 +- Core/Src/main.c | 2 + Core/Src/spi.c | 127 + Core/Src/stm32g0xx_it.c | 15 + .../Inc/stm32g0xx_hal_spi.h | 861 ++++ .../Inc/stm32g0xx_hal_spi_ex.h | 73 + .../Inc/stm32g0xx_ll_spi.h | 2299 +++++++++ .../Src/stm32g0xx_hal_spi.c | 4471 +++++++++++++++++ .../Src/stm32g0xx_hal_spi_ex.c | 112 + STM32G030F6P6_Evaluation.ioc | 59 +- 14 files changed, 8073 insertions(+), 21 deletions(-) create mode 100644 Core/Inc/spi.h create mode 100644 Core/Src/spi.c create mode 100644 Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_spi.h create mode 100644 Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_spi_ex.h create mode 100644 Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_ll_spi.h create mode 100644 Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_spi.c create mode 100644 Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_spi_ex.c diff --git a/Core/Inc/main.h b/Core/Inc/main.h index 3eb6ca7..820d19a 100644 --- a/Core/Inc/main.h +++ b/Core/Inc/main.h @@ -70,6 +70,8 @@ void Error_Handler(void); #define ENCODER_S_EXTI4_EXTI_IRQn EXTI4_15_IRQn #define BUZZER_PWM_OUT_Pin GPIO_PIN_8 #define BUZZER_PWM_OUT_GPIO_Port GPIOA +#define SPI1_CS_Pin GPIO_PIN_3 +#define SPI1_CS_GPIO_Port GPIOB /* USER CODE BEGIN Private defines */ diff --git a/Core/Inc/spi.h b/Core/Inc/spi.h new file mode 100644 index 0000000..d1b1dcf --- /dev/null +++ b/Core/Inc/spi.h @@ -0,0 +1,52 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file spi.h + * @brief This file contains all the function prototypes for + * the spi.c file + ****************************************************************************** + * @attention + * + * Copyright (c) 2026 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ +/* USER CODE END Header */ +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __SPI_H__ +#define __SPI_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "main.h" + +/* USER CODE BEGIN Includes */ + +/* USER CODE END Includes */ + +extern SPI_HandleTypeDef hspi1; + +/* USER CODE BEGIN Private defines */ + +/* USER CODE END Private defines */ + +void MX_SPI1_Init(void); + +/* USER CODE BEGIN Prototypes */ + +/* USER CODE END Prototypes */ + +#ifdef __cplusplus +} +#endif + +#endif /* __SPI_H__ */ + diff --git a/Core/Inc/stm32g0xx_hal_conf.h b/Core/Inc/stm32g0xx_hal_conf.h index 24ff5b6..32fe3e6 100644 --- a/Core/Inc/stm32g0xx_hal_conf.h +++ b/Core/Inc/stm32g0xx_hal_conf.h @@ -53,7 +53,7 @@ extern "C" { /* #define HAL_RTC_MODULE_ENABLED */ /* #define HAL_SMARTCARD_MODULE_ENABLED */ /* #define HAL_SMBUS_MODULE_ENABLED */ -/* #define HAL_SPI_MODULE_ENABLED */ +#define HAL_SPI_MODULE_ENABLED #define HAL_TIM_MODULE_ENABLED #define HAL_UART_MODULE_ENABLED /* #define HAL_USART_MODULE_ENABLED */ diff --git a/Core/Inc/stm32g0xx_it.h b/Core/Inc/stm32g0xx_it.h index 85fcad1..4582170 100644 --- a/Core/Inc/stm32g0xx_it.h +++ b/Core/Inc/stm32g0xx_it.h @@ -57,6 +57,7 @@ void ADC1_IRQHandler(void); void TIM17_IRQHandler(void); void I2C1_IRQHandler(void); void I2C2_IRQHandler(void); +void SPI1_IRQHandler(void); void USART2_IRQHandler(void); /* USER CODE BEGIN EFP */ diff --git a/Core/Src/gpio.c b/Core/Src/gpio.c index 3cc1f85..1a7ce53 100644 --- a/Core/Src/gpio.c +++ b/Core/Src/gpio.c @@ -51,10 +51,13 @@ void MX_GPIO_Init(void) __HAL_RCC_GPIOC_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); + /*Configure GPIO pin Output Level */ + HAL_GPIO_WritePin(SPI1_CS_GPIO_Port, SPI1_CS_Pin, GPIO_PIN_RESET); + /*Configure GPIO pins : PB7 PB0 PB1 PB2 - PB3 PB4 PB5 PB6 */ + PB4 PB5 PB6 */ GPIO_InitStruct.Pin = GPIO_PIN_7|GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2 - |GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6; + |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6; GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); @@ -83,12 +86,19 @@ void MX_GPIO_Init(void) GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(ENCODER_B_INPUT_GPIO_Port, &GPIO_InitStruct); - /*Configure GPIO pins : PA5 PA6 PA7 PA15 */ - GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_15; + /*Configure GPIO pin : PA15 */ + GPIO_InitStruct.Pin = GPIO_PIN_15; GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); + /*Configure GPIO pin : SPI1_CS_Pin */ + GPIO_InitStruct.Pin = SPI1_CS_Pin; + GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; + GPIO_InitStruct.Pull = GPIO_NOPULL; + GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; + HAL_GPIO_Init(SPI1_CS_GPIO_Port, &GPIO_InitStruct); + /* EXTI interrupt init*/ HAL_NVIC_SetPriority(EXTI0_1_IRQn, 3, 0); HAL_NVIC_EnableIRQ(EXTI0_1_IRQn); diff --git a/Core/Src/main.c b/Core/Src/main.c index 2e5c622..e3126cd 100644 --- a/Core/Src/main.c +++ b/Core/Src/main.c @@ -22,6 +22,7 @@ #include "adc.h" #include "dma.h" #include "i2c.h" +#include "spi.h" #include "tim.h" #include "usart.h" #include "gpio.h" @@ -99,6 +100,7 @@ int main(void) MX_I2C1_Init(); MX_I2C2_Init(); MX_ADC1_Init(); + MX_SPI1_Init(); /* USER CODE BEGIN 2 */ /* USER CODE END 2 */ diff --git a/Core/Src/spi.c b/Core/Src/spi.c new file mode 100644 index 0000000..cb0f45e --- /dev/null +++ b/Core/Src/spi.c @@ -0,0 +1,127 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file spi.c + * @brief This file provides code for the configuration + * of the SPI instances. + ****************************************************************************** + * @attention + * + * Copyright (c) 2026 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ +/* USER CODE END Header */ +/* Includes ------------------------------------------------------------------*/ +#include "spi.h" + +/* USER CODE BEGIN 0 */ + +/* USER CODE END 0 */ + +SPI_HandleTypeDef hspi1; + +/* SPI1 init function */ +void MX_SPI1_Init(void) +{ + + /* USER CODE BEGIN SPI1_Init 0 */ + + /* USER CODE END SPI1_Init 0 */ + + /* USER CODE BEGIN SPI1_Init 1 */ + + /* USER CODE END SPI1_Init 1 */ + hspi1.Instance = SPI1; + hspi1.Init.Mode = SPI_MODE_MASTER; + hspi1.Init.Direction = SPI_DIRECTION_2LINES; + hspi1.Init.DataSize = SPI_DATASIZE_8BIT; + hspi1.Init.CLKPolarity = SPI_POLARITY_LOW; + hspi1.Init.CLKPhase = SPI_PHASE_1EDGE; + hspi1.Init.NSS = SPI_NSS_SOFT; + hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2; + hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB; + hspi1.Init.TIMode = SPI_TIMODE_DISABLE; + hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE; + hspi1.Init.CRCPolynomial = 7; + hspi1.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE; + hspi1.Init.NSSPMode = SPI_NSS_PULSE_ENABLE; + if (HAL_SPI_Init(&hspi1) != HAL_OK) + { + Error_Handler(); + } + /* USER CODE BEGIN SPI1_Init 2 */ + + /* USER CODE END SPI1_Init 2 */ + +} + +void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle) +{ + + GPIO_InitTypeDef GPIO_InitStruct = {0}; + if(spiHandle->Instance==SPI1) + { + /* USER CODE BEGIN SPI1_MspInit 0 */ + + /* USER CODE END SPI1_MspInit 0 */ + /* SPI1 clock enable */ + __HAL_RCC_SPI1_CLK_ENABLE(); + + __HAL_RCC_GPIOA_CLK_ENABLE(); + /**SPI1 GPIO Configuration + PA5 ------> SPI1_SCK + PA6 ------> SPI1_MISO + PA7 ------> SPI1_MOSI + */ + GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7; + GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; + GPIO_InitStruct.Pull = GPIO_NOPULL; + GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; + GPIO_InitStruct.Alternate = GPIO_AF0_SPI1; + HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); + + /* SPI1 interrupt Init */ + HAL_NVIC_SetPriority(SPI1_IRQn, 3, 0); + HAL_NVIC_EnableIRQ(SPI1_IRQn); + /* USER CODE BEGIN SPI1_MspInit 1 */ + + /* USER CODE END SPI1_MspInit 1 */ + } +} + +void HAL_SPI_MspDeInit(SPI_HandleTypeDef* spiHandle) +{ + + if(spiHandle->Instance==SPI1) + { + /* USER CODE BEGIN SPI1_MspDeInit 0 */ + + /* USER CODE END SPI1_MspDeInit 0 */ + /* Peripheral clock disable */ + __HAL_RCC_SPI1_CLK_DISABLE(); + + /**SPI1 GPIO Configuration + PA5 ------> SPI1_SCK + PA6 ------> SPI1_MISO + PA7 ------> SPI1_MOSI + */ + HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7); + + /* SPI1 interrupt Deinit */ + HAL_NVIC_DisableIRQ(SPI1_IRQn); + /* USER CODE BEGIN SPI1_MspDeInit 1 */ + + /* USER CODE END SPI1_MspDeInit 1 */ + } +} + +/* USER CODE BEGIN 1 */ + +/* USER CODE END 1 */ + diff --git a/Core/Src/stm32g0xx_it.c b/Core/Src/stm32g0xx_it.c index 42288cd..24ea383 100644 --- a/Core/Src/stm32g0xx_it.c +++ b/Core/Src/stm32g0xx_it.c @@ -60,6 +60,7 @@ extern DMA_HandleTypeDef hdma_i2c1_rx; extern DMA_HandleTypeDef hdma_i2c2_tx; extern I2C_HandleTypeDef hi2c1; extern I2C_HandleTypeDef hi2c2; +extern SPI_HandleTypeDef hspi1; extern DMA_HandleTypeDef hdma_usart2_rx; extern DMA_HandleTypeDef hdma_usart2_tx; extern UART_HandleTypeDef huart2; @@ -251,6 +252,20 @@ void I2C2_IRQHandler(void) /* USER CODE END I2C2_IRQn 1 */ } +/** + * @brief This function handles SPI1 global interrupt. + */ +void SPI1_IRQHandler(void) +{ + /* USER CODE BEGIN SPI1_IRQn 0 */ + + /* USER CODE END SPI1_IRQn 0 */ + HAL_SPI_IRQHandler(&hspi1); + /* USER CODE BEGIN SPI1_IRQn 1 */ + + /* USER CODE END SPI1_IRQn 1 */ +} + /** * @brief This function handles USART2 global interrupt / USART2 wake-up interrupt through EXTI line 26. */ diff --git a/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_spi.h b/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_spi.h new file mode 100644 index 0000000..adeeb0d --- /dev/null +++ b/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_spi.h @@ -0,0 +1,861 @@ +/** + ****************************************************************************** + * @file stm32g0xx_hal_spi.h + * @author MCD Application Team + * @brief Header file of SPI HAL module. + ****************************************************************************** + * @attention + * + * Copyright (c) 2018 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef STM32G0xx_HAL_SPI_H +#define STM32G0xx_HAL_SPI_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32g0xx_hal_def.h" + +/** @addtogroup STM32G0xx_HAL_Driver + * @{ + */ + +/** @addtogroup SPI + * @{ + */ + +/* Exported types ------------------------------------------------------------*/ +/** @defgroup SPI_Exported_Types SPI Exported Types + * @{ + */ + +/** + * @brief SPI Configuration Structure definition + */ +typedef struct +{ + uint32_t Mode; /*!< Specifies the SPI operating mode. + This parameter can be a value of @ref SPI_Mode */ + + uint32_t Direction; /*!< Specifies the SPI bidirectional mode state. + This parameter can be a value of @ref SPI_Direction */ + + uint32_t DataSize; /*!< Specifies the SPI data size. + This parameter can be a value of @ref SPI_Data_Size */ + + uint32_t CLKPolarity; /*!< Specifies the serial clock steady state. + This parameter can be a value of @ref SPI_Clock_Polarity */ + + uint32_t CLKPhase; /*!< Specifies the clock active edge for the bit capture. + This parameter can be a value of @ref SPI_Clock_Phase */ + + uint32_t NSS; /*!< Specifies whether the NSS signal is managed by + hardware (NSS pin) or by software using the SSI bit. + This parameter can be a value of @ref SPI_Slave_Select_management */ + + uint32_t BaudRatePrescaler; /*!< Specifies the Baud Rate prescaler value which will be + used to configure the transmit and receive SCK clock. + This parameter can be a value of @ref SPI_BaudRate_Prescaler + @note The communication clock is derived from the master + clock. The slave clock does not need to be set. */ + + uint32_t FirstBit; /*!< Specifies whether data transfers start from MSB or LSB bit. + This parameter can be a value of @ref SPI_MSB_LSB_transmission */ + + uint32_t TIMode; /*!< Specifies if the TI mode is enabled or not. + This parameter can be a value of @ref SPI_TI_mode */ + + uint32_t CRCCalculation; /*!< Specifies if the CRC calculation is enabled or not. + This parameter can be a value of @ref SPI_CRC_Calculation */ + + uint32_t CRCPolynomial; /*!< Specifies the polynomial used for the CRC calculation. + This parameter must be an odd number between Min_Data = 1 and Max_Data = 65535 */ + + uint32_t CRCLength; /*!< Specifies the CRC Length used for the CRC calculation. + CRC Length is only used with Data8 and Data16, not other data size + This parameter can be a value of @ref SPI_CRC_length */ + + uint32_t NSSPMode; /*!< Specifies whether the NSSP signal is enabled or not . + This parameter can be a value of @ref SPI_NSSP_Mode + This mode is activated by the NSSP bit in the SPIx_CR2 register and + it takes effect only if the SPI interface is configured as Motorola SPI + master (FRF=0) with capture on the first edge (SPIx_CR1 CPHA = 0, + CPOL setting is ignored).. */ +} SPI_InitTypeDef; + +/** + * @brief HAL SPI State structure definition + */ +typedef enum +{ + HAL_SPI_STATE_RESET = 0x00U, /*!< Peripheral not Initialized */ + HAL_SPI_STATE_READY = 0x01U, /*!< Peripheral Initialized and ready for use */ + HAL_SPI_STATE_BUSY = 0x02U, /*!< an internal process is ongoing */ + HAL_SPI_STATE_BUSY_TX = 0x03U, /*!< Data Transmission process is ongoing */ + HAL_SPI_STATE_BUSY_RX = 0x04U, /*!< Data Reception process is ongoing */ + HAL_SPI_STATE_BUSY_TX_RX = 0x05U, /*!< Data Transmission and Reception process is ongoing */ + HAL_SPI_STATE_ERROR = 0x06U, /*!< SPI error state */ + HAL_SPI_STATE_ABORT = 0x07U /*!< SPI abort is ongoing */ +} HAL_SPI_StateTypeDef; + +/** + * @brief SPI handle Structure definition + */ +typedef struct __SPI_HandleTypeDef +{ + SPI_TypeDef *Instance; /*!< SPI registers base address */ + + SPI_InitTypeDef Init; /*!< SPI communication parameters */ + + const uint8_t *pTxBuffPtr; /*!< Pointer to SPI Tx transfer Buffer */ + + uint16_t TxXferSize; /*!< SPI Tx Transfer size */ + + __IO uint16_t TxXferCount; /*!< SPI Tx Transfer Counter */ + + uint8_t *pRxBuffPtr; /*!< Pointer to SPI Rx transfer Buffer */ + + uint16_t RxXferSize; /*!< SPI Rx Transfer size */ + + __IO uint16_t RxXferCount; /*!< SPI Rx Transfer Counter */ + + uint32_t CRCSize; /*!< SPI CRC size used for the transfer */ + + void (*RxISR)(struct __SPI_HandleTypeDef *hspi); /*!< function pointer on Rx ISR */ + + void (*TxISR)(struct __SPI_HandleTypeDef *hspi); /*!< function pointer on Tx ISR */ + + DMA_HandleTypeDef *hdmatx; /*!< SPI Tx DMA Handle parameters */ + + DMA_HandleTypeDef *hdmarx; /*!< SPI Rx DMA Handle parameters */ + + HAL_LockTypeDef Lock; /*!< Locking object */ + + __IO HAL_SPI_StateTypeDef State; /*!< SPI communication state */ + + __IO uint32_t ErrorCode; /*!< SPI Error code */ + +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + void (* TxCpltCallback)(struct __SPI_HandleTypeDef *hspi); /*!< SPI Tx Completed callback */ + void (* RxCpltCallback)(struct __SPI_HandleTypeDef *hspi); /*!< SPI Rx Completed callback */ + void (* TxRxCpltCallback)(struct __SPI_HandleTypeDef *hspi); /*!< SPI TxRx Completed callback */ + void (* TxHalfCpltCallback)(struct __SPI_HandleTypeDef *hspi); /*!< SPI Tx Half Completed callback */ + void (* RxHalfCpltCallback)(struct __SPI_HandleTypeDef *hspi); /*!< SPI Rx Half Completed callback */ + void (* TxRxHalfCpltCallback)(struct __SPI_HandleTypeDef *hspi); /*!< SPI TxRx Half Completed callback */ + void (* ErrorCallback)(struct __SPI_HandleTypeDef *hspi); /*!< SPI Error callback */ + void (* AbortCpltCallback)(struct __SPI_HandleTypeDef *hspi); /*!< SPI Abort callback */ + void (* MspInitCallback)(struct __SPI_HandleTypeDef *hspi); /*!< SPI Msp Init callback */ + void (* MspDeInitCallback)(struct __SPI_HandleTypeDef *hspi); /*!< SPI Msp DeInit callback */ + +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +} SPI_HandleTypeDef; + +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) +/** + * @brief HAL SPI Callback ID enumeration definition + */ +typedef enum +{ + HAL_SPI_TX_COMPLETE_CB_ID = 0x00U, /*!< SPI Tx Completed callback ID */ + HAL_SPI_RX_COMPLETE_CB_ID = 0x01U, /*!< SPI Rx Completed callback ID */ + HAL_SPI_TX_RX_COMPLETE_CB_ID = 0x02U, /*!< SPI TxRx Completed callback ID */ + HAL_SPI_TX_HALF_COMPLETE_CB_ID = 0x03U, /*!< SPI Tx Half Completed callback ID */ + HAL_SPI_RX_HALF_COMPLETE_CB_ID = 0x04U, /*!< SPI Rx Half Completed callback ID */ + HAL_SPI_TX_RX_HALF_COMPLETE_CB_ID = 0x05U, /*!< SPI TxRx Half Completed callback ID */ + HAL_SPI_ERROR_CB_ID = 0x06U, /*!< SPI Error callback ID */ + HAL_SPI_ABORT_CB_ID = 0x07U, /*!< SPI Abort callback ID */ + HAL_SPI_MSPINIT_CB_ID = 0x08U, /*!< SPI Msp Init callback ID */ + HAL_SPI_MSPDEINIT_CB_ID = 0x09U /*!< SPI Msp DeInit callback ID */ + +} HAL_SPI_CallbackIDTypeDef; + +/** + * @brief HAL SPI Callback pointer definition + */ +typedef void (*pSPI_CallbackTypeDef)(SPI_HandleTypeDef *hspi); /*!< pointer to an SPI callback function */ + +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +/** + * @} + */ + +/* Exported constants --------------------------------------------------------*/ +/** @defgroup SPI_Exported_Constants SPI Exported Constants + * @{ + */ + +/** @defgroup SPI_Error_Code SPI Error Code + * @{ + */ +#define HAL_SPI_ERROR_NONE (0x00000000U) /*!< No error */ +#define HAL_SPI_ERROR_MODF (0x00000001U) /*!< MODF error */ +#define HAL_SPI_ERROR_CRC (0x00000002U) /*!< CRC error */ +#define HAL_SPI_ERROR_OVR (0x00000004U) /*!< OVR error */ +#define HAL_SPI_ERROR_FRE (0x00000008U) /*!< FRE error */ +#define HAL_SPI_ERROR_DMA (0x00000010U) /*!< DMA transfer error */ +#define HAL_SPI_ERROR_FLAG (0x00000020U) /*!< Error on RXNE/TXE/BSY/FTLVL/FRLVL Flag */ +#define HAL_SPI_ERROR_ABORT (0x00000040U) /*!< Error during SPI Abort procedure */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) +#define HAL_SPI_ERROR_INVALID_CALLBACK (0x00000080U) /*!< Invalid Callback error */ +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +/** + * @} + */ + +/** @defgroup SPI_Mode SPI Mode + * @{ + */ +#define SPI_MODE_SLAVE (0x00000000U) +#define SPI_MODE_MASTER (SPI_CR1_MSTR | SPI_CR1_SSI) +/** + * @} + */ + +/** @defgroup SPI_Direction SPI Direction Mode + * @{ + */ +#define SPI_DIRECTION_2LINES (0x00000000U) +#define SPI_DIRECTION_2LINES_RXONLY SPI_CR1_RXONLY +#define SPI_DIRECTION_1LINE SPI_CR1_BIDIMODE +/** + * @} + */ + +/** @defgroup SPI_Data_Size SPI Data Size + * @{ + */ +#define SPI_DATASIZE_4BIT (0x00000300U) +#define SPI_DATASIZE_5BIT (0x00000400U) +#define SPI_DATASIZE_6BIT (0x00000500U) +#define SPI_DATASIZE_7BIT (0x00000600U) +#define SPI_DATASIZE_8BIT (0x00000700U) +#define SPI_DATASIZE_9BIT (0x00000800U) +#define SPI_DATASIZE_10BIT (0x00000900U) +#define SPI_DATASIZE_11BIT (0x00000A00U) +#define SPI_DATASIZE_12BIT (0x00000B00U) +#define SPI_DATASIZE_13BIT (0x00000C00U) +#define SPI_DATASIZE_14BIT (0x00000D00U) +#define SPI_DATASIZE_15BIT (0x00000E00U) +#define SPI_DATASIZE_16BIT (0x00000F00U) +/** + * @} + */ + +/** @defgroup SPI_Clock_Polarity SPI Clock Polarity + * @{ + */ +#define SPI_POLARITY_LOW (0x00000000U) +#define SPI_POLARITY_HIGH SPI_CR1_CPOL +/** + * @} + */ + +/** @defgroup SPI_Clock_Phase SPI Clock Phase + * @{ + */ +#define SPI_PHASE_1EDGE (0x00000000U) +#define SPI_PHASE_2EDGE SPI_CR1_CPHA +/** + * @} + */ + +/** @defgroup SPI_Slave_Select_management SPI Slave Select Management + * @{ + */ +#define SPI_NSS_SOFT SPI_CR1_SSM +#define SPI_NSS_HARD_INPUT (0x00000000U) +#define SPI_NSS_HARD_OUTPUT (SPI_CR2_SSOE << 16U) +/** + * @} + */ + +/** @defgroup SPI_NSSP_Mode SPI NSS Pulse Mode + * @{ + */ +#define SPI_NSS_PULSE_ENABLE SPI_CR2_NSSP +#define SPI_NSS_PULSE_DISABLE (0x00000000U) +/** + * @} + */ + +/** @defgroup SPI_BaudRate_Prescaler SPI BaudRate Prescaler + * @{ + */ +#define SPI_BAUDRATEPRESCALER_2 (0x00000000U) +#define SPI_BAUDRATEPRESCALER_4 (SPI_CR1_BR_0) +#define SPI_BAUDRATEPRESCALER_8 (SPI_CR1_BR_1) +#define SPI_BAUDRATEPRESCALER_16 (SPI_CR1_BR_1 | SPI_CR1_BR_0) +#define SPI_BAUDRATEPRESCALER_32 (SPI_CR1_BR_2) +#define SPI_BAUDRATEPRESCALER_64 (SPI_CR1_BR_2 | SPI_CR1_BR_0) +#define SPI_BAUDRATEPRESCALER_128 (SPI_CR1_BR_2 | SPI_CR1_BR_1) +#define SPI_BAUDRATEPRESCALER_256 (SPI_CR1_BR_2 | SPI_CR1_BR_1 | SPI_CR1_BR_0) +/** + * @} + */ + +/** @defgroup SPI_MSB_LSB_transmission SPI MSB LSB Transmission + * @{ + */ +#define SPI_FIRSTBIT_MSB (0x00000000U) +#define SPI_FIRSTBIT_LSB SPI_CR1_LSBFIRST +/** + * @} + */ + +/** @defgroup SPI_TI_mode SPI TI Mode + * @{ + */ +#define SPI_TIMODE_DISABLE (0x00000000U) +#define SPI_TIMODE_ENABLE SPI_CR2_FRF +/** + * @} + */ + +/** @defgroup SPI_CRC_Calculation SPI CRC Calculation + * @{ + */ +#define SPI_CRCCALCULATION_DISABLE (0x00000000U) +#define SPI_CRCCALCULATION_ENABLE SPI_CR1_CRCEN +/** + * @} + */ + +/** @defgroup SPI_CRC_length SPI CRC Length + * @{ + * This parameter can be one of the following values: + * SPI_CRC_LENGTH_DATASIZE: aligned with the data size + * SPI_CRC_LENGTH_8BIT : CRC 8bit + * SPI_CRC_LENGTH_16BIT : CRC 16bit + */ +#define SPI_CRC_LENGTH_DATASIZE (0x00000000U) +#define SPI_CRC_LENGTH_8BIT (0x00000001U) +#define SPI_CRC_LENGTH_16BIT (0x00000002U) +/** + * @} + */ + +/** @defgroup SPI_FIFO_reception_threshold SPI FIFO Reception Threshold + * @{ + * This parameter can be one of the following values: + * SPI_RXFIFO_THRESHOLD or SPI_RXFIFO_THRESHOLD_QF : + * RXNE event is generated if the FIFO + * level is greater or equal to 1/4(8-bits). + * SPI_RXFIFO_THRESHOLD_HF: RXNE event is generated if the FIFO + * level is greater or equal to 1/2(16 bits). */ +#define SPI_RXFIFO_THRESHOLD SPI_CR2_FRXTH +#define SPI_RXFIFO_THRESHOLD_QF SPI_CR2_FRXTH +#define SPI_RXFIFO_THRESHOLD_HF (0x00000000U) +/** + * @} + */ + +/** @defgroup SPI_Interrupt_definition SPI Interrupt Definition + * @{ + */ +#define SPI_IT_TXE SPI_CR2_TXEIE +#define SPI_IT_RXNE SPI_CR2_RXNEIE +#define SPI_IT_ERR SPI_CR2_ERRIE +/** + * @} + */ + +/** @defgroup SPI_Flags_definition SPI Flags Definition + * @{ + */ +#define SPI_FLAG_RXNE SPI_SR_RXNE /* SPI status flag: Rx buffer not empty flag */ +#define SPI_FLAG_TXE SPI_SR_TXE /* SPI status flag: Tx buffer empty flag */ +#define SPI_FLAG_BSY SPI_SR_BSY /* SPI status flag: Busy flag */ +#define SPI_FLAG_CRCERR SPI_SR_CRCERR /* SPI Error flag: CRC error flag */ +#define SPI_FLAG_MODF SPI_SR_MODF /* SPI Error flag: Mode fault flag */ +#define SPI_FLAG_OVR SPI_SR_OVR /* SPI Error flag: Overrun flag */ +#define SPI_FLAG_FRE SPI_SR_FRE /* SPI Error flag: TI mode frame format error flag */ +#define SPI_FLAG_FTLVL SPI_SR_FTLVL /* SPI fifo transmission level */ +#define SPI_FLAG_FRLVL SPI_SR_FRLVL /* SPI fifo reception level */ +#define SPI_FLAG_MASK (SPI_SR_RXNE | SPI_SR_TXE | SPI_SR_BSY | SPI_SR_CRCERR\ + | SPI_SR_MODF | SPI_SR_OVR | SPI_SR_FRE | SPI_SR_FTLVL | SPI_SR_FRLVL) +/** + * @} + */ + +/** @defgroup SPI_transmission_fifo_status_level SPI Transmission FIFO Status Level + * @{ + */ +#define SPI_FTLVL_EMPTY (0x00000000U) +#define SPI_FTLVL_QUARTER_FULL (0x00000800U) +#define SPI_FTLVL_HALF_FULL (0x00001000U) +#define SPI_FTLVL_FULL (0x00001800U) + +/** + * @} + */ + +/** @defgroup SPI_reception_fifo_status_level SPI Reception FIFO Status Level + * @{ + */ +#define SPI_FRLVL_EMPTY (0x00000000U) +#define SPI_FRLVL_QUARTER_FULL (0x00000200U) +#define SPI_FRLVL_HALF_FULL (0x00000400U) +#define SPI_FRLVL_FULL (0x00000600U) +/** + * @} + */ + +/** + * @} + */ + +/* Exported macros -----------------------------------------------------------*/ +/** @defgroup SPI_Exported_Macros SPI Exported Macros + * @{ + */ + +/** @brief Reset SPI handle state. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @retval None + */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) +#define __HAL_SPI_RESET_HANDLE_STATE(__HANDLE__) \ + do{ \ + (__HANDLE__)->State = HAL_SPI_STATE_RESET; \ + (__HANDLE__)->MspInitCallback = NULL; \ + (__HANDLE__)->MspDeInitCallback = NULL; \ + } while(0) +#else +#define __HAL_SPI_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_SPI_STATE_RESET) +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + +/** @brief Enable the specified SPI interrupts. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @param __INTERRUPT__ specifies the interrupt source to enable. + * This parameter can be one of the following values: + * @arg SPI_IT_TXE: Tx buffer empty interrupt enable + * @arg SPI_IT_RXNE: RX buffer not empty interrupt enable + * @arg SPI_IT_ERR: Error interrupt enable + * @retval None + */ +#define __HAL_SPI_ENABLE_IT(__HANDLE__, __INTERRUPT__) SET_BIT((__HANDLE__)->Instance->CR2, (__INTERRUPT__)) + +/** @brief Disable the specified SPI interrupts. + * @param __HANDLE__ specifies the SPI handle. + * This parameter can be SPIx where x: 1, 2, or 3 to select the SPI peripheral. + * @param __INTERRUPT__ specifies the interrupt source to disable. + * This parameter can be one of the following values: + * @arg SPI_IT_TXE: Tx buffer empty interrupt enable + * @arg SPI_IT_RXNE: RX buffer not empty interrupt enable + * @arg SPI_IT_ERR: Error interrupt enable + * @retval None + */ +#define __HAL_SPI_DISABLE_IT(__HANDLE__, __INTERRUPT__) CLEAR_BIT((__HANDLE__)->Instance->CR2, (__INTERRUPT__)) + +/** @brief Check whether the specified SPI interrupt source is enabled or not. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @param __INTERRUPT__ specifies the SPI interrupt source to check. + * This parameter can be one of the following values: + * @arg SPI_IT_TXE: Tx buffer empty interrupt enable + * @arg SPI_IT_RXNE: RX buffer not empty interrupt enable + * @arg SPI_IT_ERR: Error interrupt enable + * @retval The new state of __IT__ (TRUE or FALSE). + */ +#define __HAL_SPI_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR2\ + & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET) + +/** @brief Check whether the specified SPI flag is set or not. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @param __FLAG__ specifies the flag to check. + * This parameter can be one of the following values: + * @arg SPI_FLAG_RXNE: Receive buffer not empty flag + * @arg SPI_FLAG_TXE: Transmit buffer empty flag + * @arg SPI_FLAG_CRCERR: CRC error flag + * @arg SPI_FLAG_MODF: Mode fault flag + * @arg SPI_FLAG_OVR: Overrun flag + * @arg SPI_FLAG_BSY: Busy flag + * @arg SPI_FLAG_FRE: Frame format error flag + * @arg SPI_FLAG_FTLVL: SPI fifo transmission level + * @arg SPI_FLAG_FRLVL: SPI fifo reception level + * @retval The new state of __FLAG__ (TRUE or FALSE). + */ +#define __HAL_SPI_GET_FLAG(__HANDLE__, __FLAG__) ((((__HANDLE__)->Instance->SR) & (__FLAG__)) == (__FLAG__)) + +/** @brief Clear the SPI CRCERR pending flag. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @retval None + */ +#define __HAL_SPI_CLEAR_CRCERRFLAG(__HANDLE__) ((__HANDLE__)->Instance->SR = (uint16_t)(~SPI_FLAG_CRCERR)) + +/** @brief Clear the SPI MODF pending flag. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @retval None + */ +#define __HAL_SPI_CLEAR_MODFFLAG(__HANDLE__) \ + do{ \ + __IO uint32_t tmpreg_modf = 0x00U; \ + tmpreg_modf = (__HANDLE__)->Instance->SR; \ + CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_SPE); \ + UNUSED(tmpreg_modf); \ + } while(0U) + +/** @brief Clear the SPI OVR pending flag. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @retval None + */ +#define __HAL_SPI_CLEAR_OVRFLAG(__HANDLE__) \ + do{ \ + __IO uint32_t tmpreg_ovr = 0x00U; \ + tmpreg_ovr = (__HANDLE__)->Instance->DR; \ + tmpreg_ovr = (__HANDLE__)->Instance->SR; \ + UNUSED(tmpreg_ovr); \ + } while(0U) + +/** @brief Clear the SPI FRE pending flag. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @retval None + */ +#define __HAL_SPI_CLEAR_FREFLAG(__HANDLE__) \ + do{ \ + __IO uint32_t tmpreg_fre = 0x00U; \ + tmpreg_fre = (__HANDLE__)->Instance->SR; \ + UNUSED(tmpreg_fre); \ + } while(0U) + +/** @brief Enable the SPI peripheral. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @retval None + */ +#define __HAL_SPI_ENABLE(__HANDLE__) SET_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_SPE) + +/** @brief Disable the SPI peripheral. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @retval None + */ +#define __HAL_SPI_DISABLE(__HANDLE__) CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_SPE) + +/** + * @} + */ + +/* Private macros ------------------------------------------------------------*/ +/** @defgroup SPI_Private_Macros SPI Private Macros + * @{ + */ + +/** @brief Set the SPI transmit-only mode. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @retval None + */ +#define SPI_1LINE_TX(__HANDLE__) SET_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_BIDIOE) + +/** @brief Set the SPI receive-only mode. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @retval None + */ +#define SPI_1LINE_RX(__HANDLE__) CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_BIDIOE) + +/** @brief Reset the CRC calculation of the SPI. + * @param __HANDLE__ specifies the SPI Handle. + * This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral. + * @retval None + */ +#define SPI_RESET_CRC(__HANDLE__) \ + do{ \ + CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_CRCEN); \ + SET_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_CRCEN); \ + } while(0U) + +/** @brief Check whether the specified SPI flag is set or not. + * @param __SR__ copy of SPI SR register. + * @param __FLAG__ specifies the flag to check. + * This parameter can be one of the following values: + * @arg SPI_FLAG_RXNE: Receive buffer not empty flag + * @arg SPI_FLAG_TXE: Transmit buffer empty flag + * @arg SPI_FLAG_CRCERR: CRC error flag + * @arg SPI_FLAG_MODF: Mode fault flag + * @arg SPI_FLAG_OVR: Overrun flag + * @arg SPI_FLAG_BSY: Busy flag + * @arg SPI_FLAG_FRE: Frame format error flag + * @arg SPI_FLAG_FTLVL: SPI fifo transmission level + * @arg SPI_FLAG_FRLVL: SPI fifo reception level + * @retval SET or RESET. + */ +#define SPI_CHECK_FLAG(__SR__, __FLAG__) ((((__SR__) & ((__FLAG__) & SPI_FLAG_MASK)) == \ + ((__FLAG__) & SPI_FLAG_MASK)) ? SET : RESET) + +/** @brief Check whether the specified SPI Interrupt is set or not. + * @param __CR2__ copy of SPI CR2 register. + * @param __INTERRUPT__ specifies the SPI interrupt source to check. + * This parameter can be one of the following values: + * @arg SPI_IT_TXE: Tx buffer empty interrupt enable + * @arg SPI_IT_RXNE: RX buffer not empty interrupt enable + * @arg SPI_IT_ERR: Error interrupt enable + * @retval SET or RESET. + */ +#define SPI_CHECK_IT_SOURCE(__CR2__, __INTERRUPT__) ((((__CR2__) & (__INTERRUPT__)) == \ + (__INTERRUPT__)) ? SET : RESET) + +/** @brief Checks if SPI Mode parameter is in allowed range. + * @param __MODE__ specifies the SPI Mode. + * This parameter can be a value of @ref SPI_Mode + * @retval None + */ +#define IS_SPI_MODE(__MODE__) (((__MODE__) == SPI_MODE_SLAVE) || \ + ((__MODE__) == SPI_MODE_MASTER)) + +/** @brief Checks if SPI Direction Mode parameter is in allowed range. + * @param __MODE__ specifies the SPI Direction Mode. + * This parameter can be a value of @ref SPI_Direction + * @retval None + */ +#define IS_SPI_DIRECTION(__MODE__) (((__MODE__) == SPI_DIRECTION_2LINES) || \ + ((__MODE__) == SPI_DIRECTION_2LINES_RXONLY) || \ + ((__MODE__) == SPI_DIRECTION_1LINE)) + +/** @brief Checks if SPI Direction Mode parameter is 2 lines. + * @param __MODE__ specifies the SPI Direction Mode. + * @retval None + */ +#define IS_SPI_DIRECTION_2LINES(__MODE__) ((__MODE__) == SPI_DIRECTION_2LINES) + +/** @brief Checks if SPI Direction Mode parameter is 1 or 2 lines. + * @param __MODE__ specifies the SPI Direction Mode. + * @retval None + */ +#define IS_SPI_DIRECTION_2LINES_OR_1LINE(__MODE__) (((__MODE__) == SPI_DIRECTION_2LINES) || \ + ((__MODE__) == SPI_DIRECTION_1LINE)) + +/** @brief Checks if SPI Data Size parameter is in allowed range. + * @param __DATASIZE__ specifies the SPI Data Size. + * This parameter can be a value of @ref SPI_Data_Size + * @retval None + */ +#define IS_SPI_DATASIZE(__DATASIZE__) (((__DATASIZE__) == SPI_DATASIZE_16BIT) || \ + ((__DATASIZE__) == SPI_DATASIZE_15BIT) || \ + ((__DATASIZE__) == SPI_DATASIZE_14BIT) || \ + ((__DATASIZE__) == SPI_DATASIZE_13BIT) || \ + ((__DATASIZE__) == SPI_DATASIZE_12BIT) || \ + ((__DATASIZE__) == SPI_DATASIZE_11BIT) || \ + ((__DATASIZE__) == SPI_DATASIZE_10BIT) || \ + ((__DATASIZE__) == SPI_DATASIZE_9BIT) || \ + ((__DATASIZE__) == SPI_DATASIZE_8BIT) || \ + ((__DATASIZE__) == SPI_DATASIZE_7BIT) || \ + ((__DATASIZE__) == SPI_DATASIZE_6BIT) || \ + ((__DATASIZE__) == SPI_DATASIZE_5BIT) || \ + ((__DATASIZE__) == SPI_DATASIZE_4BIT)) + +/** @brief Checks if SPI Serial clock steady state parameter is in allowed range. + * @param __CPOL__ specifies the SPI serial clock steady state. + * This parameter can be a value of @ref SPI_Clock_Polarity + * @retval None + */ +#define IS_SPI_CPOL(__CPOL__) (((__CPOL__) == SPI_POLARITY_LOW) || \ + ((__CPOL__) == SPI_POLARITY_HIGH)) + +/** @brief Checks if SPI Clock Phase parameter is in allowed range. + * @param __CPHA__ specifies the SPI Clock Phase. + * This parameter can be a value of @ref SPI_Clock_Phase + * @retval None + */ +#define IS_SPI_CPHA(__CPHA__) (((__CPHA__) == SPI_PHASE_1EDGE) || \ + ((__CPHA__) == SPI_PHASE_2EDGE)) + +/** @brief Checks if SPI Slave Select parameter is in allowed range. + * @param __NSS__ specifies the SPI Slave Select management parameter. + * This parameter can be a value of @ref SPI_Slave_Select_management + * @retval None + */ +#define IS_SPI_NSS(__NSS__) (((__NSS__) == SPI_NSS_SOFT) || \ + ((__NSS__) == SPI_NSS_HARD_INPUT) || \ + ((__NSS__) == SPI_NSS_HARD_OUTPUT)) + +/** @brief Checks if SPI NSS Pulse parameter is in allowed range. + * @param __NSSP__ specifies the SPI NSS Pulse Mode parameter. + * This parameter can be a value of @ref SPI_NSSP_Mode + * @retval None + */ +#define IS_SPI_NSSP(__NSSP__) (((__NSSP__) == SPI_NSS_PULSE_ENABLE) || \ + ((__NSSP__) == SPI_NSS_PULSE_DISABLE)) + +/** @brief Checks if SPI Baudrate prescaler parameter is in allowed range. + * @param __PRESCALER__ specifies the SPI Baudrate prescaler. + * This parameter can be a value of @ref SPI_BaudRate_Prescaler + * @retval None + */ +#define IS_SPI_BAUDRATE_PRESCALER(__PRESCALER__) (((__PRESCALER__) == SPI_BAUDRATEPRESCALER_2) || \ + ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_4) || \ + ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_8) || \ + ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_16) || \ + ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_32) || \ + ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_64) || \ + ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_128) || \ + ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_256)) + +/** @brief Checks if SPI MSB LSB transmission parameter is in allowed range. + * @param __BIT__ specifies the SPI MSB LSB transmission (whether data transfer starts from MSB or LSB bit). + * This parameter can be a value of @ref SPI_MSB_LSB_transmission + * @retval None + */ +#define IS_SPI_FIRST_BIT(__BIT__) (((__BIT__) == SPI_FIRSTBIT_MSB) || \ + ((__BIT__) == SPI_FIRSTBIT_LSB)) + +/** @brief Checks if SPI TI mode parameter is in allowed range. + * @param __MODE__ specifies the SPI TI mode. + * This parameter can be a value of @ref SPI_TI_mode + * @retval None + */ +#define IS_SPI_TIMODE(__MODE__) (((__MODE__) == SPI_TIMODE_DISABLE) || \ + ((__MODE__) == SPI_TIMODE_ENABLE)) + +/** @brief Checks if SPI CRC calculation enabled state is in allowed range. + * @param __CALCULATION__ specifies the SPI CRC calculation enable state. + * This parameter can be a value of @ref SPI_CRC_Calculation + * @retval None + */ +#define IS_SPI_CRC_CALCULATION(__CALCULATION__) (((__CALCULATION__) == SPI_CRCCALCULATION_DISABLE) || \ + ((__CALCULATION__) == SPI_CRCCALCULATION_ENABLE)) + +/** @brief Checks if SPI CRC length is in allowed range. + * @param __LENGTH__ specifies the SPI CRC length. + * This parameter can be a value of @ref SPI_CRC_length + * @retval None + */ +#define IS_SPI_CRC_LENGTH(__LENGTH__) (((__LENGTH__) == SPI_CRC_LENGTH_DATASIZE) || \ + ((__LENGTH__) == SPI_CRC_LENGTH_8BIT) || \ + ((__LENGTH__) == SPI_CRC_LENGTH_16BIT)) + +/** @brief Checks if SPI polynomial value to be used for the CRC calculation, is in allowed range. + * @param __POLYNOMIAL__ specifies the SPI polynomial value to be used for the CRC calculation. + * This parameter must be a number between Min_Data = 0 and Max_Data = 65535 + * @retval None + */ +#define IS_SPI_CRC_POLYNOMIAL(__POLYNOMIAL__) (((__POLYNOMIAL__) >= 0x1U) && \ + ((__POLYNOMIAL__) <= 0xFFFFU) && \ + (((__POLYNOMIAL__)&0x1U) != 0U)) + +/** @brief Checks if DMA handle is valid. + * @param __HANDLE__ specifies a DMA Handle. + * @retval None + */ +#define IS_SPI_DMA_HANDLE(__HANDLE__) ((__HANDLE__) != NULL) + +/** @brief Checks if a data address is 16bit aligned. + * @param __DATA__ specifies a data address. + * @retval None + */ +#define IS_SPI_16BIT_ALIGNED_ADDRESS(__DATA__) (((uint32_t)(__DATA__) % 2U) == 0U) + +/** + * @} + */ + +/* Include SPI HAL Extended module */ +#include "stm32g0xx_hal_spi_ex.h" + +/* Exported functions --------------------------------------------------------*/ +/** @addtogroup SPI_Exported_Functions + * @{ + */ + +/** @addtogroup SPI_Exported_Functions_Group1 + * @{ + */ +/* Initialization/de-initialization functions ********************************/ +HAL_StatusTypeDef HAL_SPI_Init(SPI_HandleTypeDef *hspi); +HAL_StatusTypeDef HAL_SPI_DeInit(SPI_HandleTypeDef *hspi); +void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi); +void HAL_SPI_MspDeInit(SPI_HandleTypeDef *hspi); + +/* Callbacks Register/UnRegister functions ***********************************/ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) +HAL_StatusTypeDef HAL_SPI_RegisterCallback(SPI_HandleTypeDef *hspi, HAL_SPI_CallbackIDTypeDef CallbackID, + pSPI_CallbackTypeDef pCallback); +HAL_StatusTypeDef HAL_SPI_UnRegisterCallback(SPI_HandleTypeDef *hspi, HAL_SPI_CallbackIDTypeDef CallbackID); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +/** + * @} + */ + +/** @addtogroup SPI_Exported_Functions_Group2 + * @{ + */ +/* I/O operation functions ***************************************************/ +HAL_StatusTypeDef HAL_SPI_Transmit(SPI_HandleTypeDef *hspi, const uint8_t *pData, uint16_t Size, uint32_t Timeout); +HAL_StatusTypeDef HAL_SPI_Receive(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout); +HAL_StatusTypeDef HAL_SPI_TransmitReceive(SPI_HandleTypeDef *hspi, const uint8_t *pTxData, uint8_t *pRxData, + uint16_t Size, uint32_t Timeout); +HAL_StatusTypeDef HAL_SPI_Transmit_IT(SPI_HandleTypeDef *hspi, const uint8_t *pData, uint16_t Size); +HAL_StatusTypeDef HAL_SPI_Receive_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size); +HAL_StatusTypeDef HAL_SPI_TransmitReceive_IT(SPI_HandleTypeDef *hspi, const uint8_t *pTxData, uint8_t *pRxData, + uint16_t Size); +HAL_StatusTypeDef HAL_SPI_Transmit_DMA(SPI_HandleTypeDef *hspi, const uint8_t *pData, uint16_t Size); +HAL_StatusTypeDef HAL_SPI_Receive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size); +HAL_StatusTypeDef HAL_SPI_TransmitReceive_DMA(SPI_HandleTypeDef *hspi, const uint8_t *pTxData, uint8_t *pRxData, + uint16_t Size); +HAL_StatusTypeDef HAL_SPI_DMAPause(SPI_HandleTypeDef *hspi); +HAL_StatusTypeDef HAL_SPI_DMAResume(SPI_HandleTypeDef *hspi); +HAL_StatusTypeDef HAL_SPI_DMAStop(SPI_HandleTypeDef *hspi); +/* Transfer Abort functions */ +HAL_StatusTypeDef HAL_SPI_Abort(SPI_HandleTypeDef *hspi); +HAL_StatusTypeDef HAL_SPI_Abort_IT(SPI_HandleTypeDef *hspi); + +void HAL_SPI_IRQHandler(SPI_HandleTypeDef *hspi); +void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi); +void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi); +void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi); +void HAL_SPI_TxHalfCpltCallback(SPI_HandleTypeDef *hspi); +void HAL_SPI_RxHalfCpltCallback(SPI_HandleTypeDef *hspi); +void HAL_SPI_TxRxHalfCpltCallback(SPI_HandleTypeDef *hspi); +void HAL_SPI_ErrorCallback(SPI_HandleTypeDef *hspi); +void HAL_SPI_AbortCpltCallback(SPI_HandleTypeDef *hspi); +/** + * @} + */ + +/** @addtogroup SPI_Exported_Functions_Group3 + * @{ + */ +/* Peripheral State and Error functions ***************************************/ +HAL_SPI_StateTypeDef HAL_SPI_GetState(const SPI_HandleTypeDef *hspi); +uint32_t HAL_SPI_GetError(const SPI_HandleTypeDef *hspi); +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* STM32G0xx_HAL_SPI_H */ + diff --git a/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_spi_ex.h b/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_spi_ex.h new file mode 100644 index 0000000..e1fdd71 --- /dev/null +++ b/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_spi_ex.h @@ -0,0 +1,73 @@ +/** + ****************************************************************************** + * @file stm32g0xx_hal_spi_ex.h + * @author MCD Application Team + * @brief Header file of SPI HAL Extended module. + ****************************************************************************** + * @attention + * + * Copyright (c) 2018 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef STM32G0xx_HAL_SPI_EX_H +#define STM32G0xx_HAL_SPI_EX_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32g0xx_hal_def.h" + +/** @addtogroup STM32G0xx_HAL_Driver + * @{ + */ + +/** @addtogroup SPIEx + * @{ + */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macros -----------------------------------------------------------*/ +/* Exported functions --------------------------------------------------------*/ +/** @addtogroup SPIEx_Exported_Functions + * @{ + */ + +/* Initialization and de-initialization functions ****************************/ +/* IO operation functions *****************************************************/ +/** @addtogroup SPIEx_Exported_Functions_Group1 + * @{ + */ +HAL_StatusTypeDef HAL_SPIEx_FlushRxFifo(const SPI_HandleTypeDef *hspi); +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* STM32G0xx_HAL_SPI_EX_H */ + diff --git a/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_ll_spi.h b/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_ll_spi.h new file mode 100644 index 0000000..ea9a516 --- /dev/null +++ b/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_ll_spi.h @@ -0,0 +1,2299 @@ +/** + ****************************************************************************** + * @file stm32g0xx_ll_spi.h + * @author MCD Application Team + * @brief Header file of SPI LL module. + ****************************************************************************** + * @attention + * + * Copyright (c) 2018 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef STM32G0xx_LL_SPI_H +#define STM32G0xx_LL_SPI_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32g0xx.h" + +/** @addtogroup STM32G0xx_LL_Driver + * @{ + */ + +#if defined (SPI1) || defined (SPI2) || defined (SPI3) + +/** @defgroup SPI_LL SPI + * @{ + */ + +/* Private types -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private macros ------------------------------------------------------------*/ + +/* Exported types ------------------------------------------------------------*/ +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup SPI_LL_ES_INIT SPI Exported Init structure + * @{ + */ + +/** + * @brief SPI Init structures definition + */ +typedef struct +{ + uint32_t TransferDirection; /*!< Specifies the SPI unidirectional or bidirectional data mode. + This parameter can be a value of @ref SPI_LL_EC_TRANSFER_MODE. + + This feature can be modified afterwards using unitary + function @ref LL_SPI_SetTransferDirection().*/ + + uint32_t Mode; /*!< Specifies the SPI mode (Master/Slave). + This parameter can be a value of @ref SPI_LL_EC_MODE. + + This feature can be modified afterwards using unitary + function @ref LL_SPI_SetMode().*/ + + uint32_t DataWidth; /*!< Specifies the SPI data width. + This parameter can be a value of @ref SPI_LL_EC_DATAWIDTH. + + This feature can be modified afterwards using unitary + function @ref LL_SPI_SetDataWidth().*/ + + uint32_t ClockPolarity; /*!< Specifies the serial clock steady state. + This parameter can be a value of @ref SPI_LL_EC_POLARITY. + + This feature can be modified afterwards using unitary + function @ref LL_SPI_SetClockPolarity().*/ + + uint32_t ClockPhase; /*!< Specifies the clock active edge for the bit capture. + This parameter can be a value of @ref SPI_LL_EC_PHASE. + + This feature can be modified afterwards using unitary + function @ref LL_SPI_SetClockPhase().*/ + + uint32_t NSS; /*!< Specifies whether the NSS signal is managed by hardware (NSS pin) + or by software using the SSI bit. + This parameter can be a value of @ref SPI_LL_EC_NSS_MODE. + + This feature can be modified afterwards using unitary + function @ref LL_SPI_SetNSSMode().*/ + + uint32_t BaudRate; /*!< Specifies the BaudRate prescaler value which will be used + to configure the transmit and receive SCK clock. + This parameter can be a value of @ref SPI_LL_EC_BAUDRATEPRESCALER. + @note The communication clock is derived from the master clock. + The slave clock does not need to be set. + + This feature can be modified afterwards using unitary + function @ref LL_SPI_SetBaudRatePrescaler().*/ + + uint32_t BitOrder; /*!< Specifies whether data transfers start from MSB or LSB bit. + This parameter can be a value of @ref SPI_LL_EC_BIT_ORDER. + + This feature can be modified afterwards using unitary + function @ref LL_SPI_SetTransferBitOrder().*/ + + uint32_t CRCCalculation; /*!< Specifies if the CRC calculation is enabled or not. + This parameter can be a value of @ref SPI_LL_EC_CRC_CALCULATION. + + This feature can be modified afterwards using unitary + functions @ref LL_SPI_EnableCRC() and @ref LL_SPI_DisableCRC().*/ + + uint32_t CRCPoly; /*!< Specifies the polynomial used for the CRC calculation. + This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFFFF. + + This feature can be modified afterwards using unitary + function @ref LL_SPI_SetCRCPolynomial().*/ + +} LL_SPI_InitTypeDef; + +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ + +/* Exported constants --------------------------------------------------------*/ +/** @defgroup SPI_LL_Exported_Constants SPI Exported Constants + * @{ + */ + +/** @defgroup SPI_LL_EC_GET_FLAG Get Flags Defines + * @brief Flags defines which can be used with LL_SPI_ReadReg function + * @{ + */ +#define LL_SPI_SR_RXNE SPI_SR_RXNE /*!< Rx buffer not empty flag */ +#define LL_SPI_SR_TXE SPI_SR_TXE /*!< Tx buffer empty flag */ +#define LL_SPI_SR_BSY SPI_SR_BSY /*!< Busy flag */ +#define LL_SPI_SR_CRCERR SPI_SR_CRCERR /*!< CRC error flag */ +#define LL_SPI_SR_MODF SPI_SR_MODF /*!< Mode fault flag */ +#define LL_SPI_SR_OVR SPI_SR_OVR /*!< Overrun flag */ +#define LL_SPI_SR_FRE SPI_SR_FRE /*!< TI mode frame format error flag */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_IT IT Defines + * @brief IT defines which can be used with LL_SPI_ReadReg and LL_SPI_WriteReg functions + * @{ + */ +#define LL_SPI_CR2_RXNEIE SPI_CR2_RXNEIE /*!< Rx buffer not empty interrupt enable */ +#define LL_SPI_CR2_TXEIE SPI_CR2_TXEIE /*!< Tx buffer empty interrupt enable */ +#define LL_SPI_CR2_ERRIE SPI_CR2_ERRIE /*!< Error interrupt enable */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_MODE Operation Mode + * @{ + */ +#define LL_SPI_MODE_MASTER (SPI_CR1_MSTR | SPI_CR1_SSI) /*!< Master configuration */ +#define LL_SPI_MODE_SLAVE 0x00000000U /*!< Slave configuration */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_PROTOCOL Serial Protocol + * @{ + */ +#define LL_SPI_PROTOCOL_MOTOROLA 0x00000000U /*!< Motorola mode. Used as default value */ +#define LL_SPI_PROTOCOL_TI (SPI_CR2_FRF) /*!< TI mode */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_PHASE Clock Phase + * @{ + */ +#define LL_SPI_PHASE_1EDGE 0x00000000U /*!< First clock transition is the first data capture edge */ +#define LL_SPI_PHASE_2EDGE (SPI_CR1_CPHA) /*!< Second clock transition is the first data capture edge */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_POLARITY Clock Polarity + * @{ + */ +#define LL_SPI_POLARITY_LOW 0x00000000U /*!< Clock to 0 when idle */ +#define LL_SPI_POLARITY_HIGH (SPI_CR1_CPOL) /*!< Clock to 1 when idle */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_BAUDRATEPRESCALER Baud Rate Prescaler + * @{ + */ +#define LL_SPI_BAUDRATEPRESCALER_DIV2 0x00000000U /*!< BaudRate control equal to fPCLK/2 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV4 (SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/4 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV8 (SPI_CR1_BR_1) /*!< BaudRate control equal to fPCLK/8 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV16 (SPI_CR1_BR_1 | SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/16 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV32 (SPI_CR1_BR_2) /*!< BaudRate control equal to fPCLK/32 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV64 (SPI_CR1_BR_2 | SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/64 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV128 (SPI_CR1_BR_2 | SPI_CR1_BR_1) /*!< BaudRate control equal to fPCLK/128 */ +#define LL_SPI_BAUDRATEPRESCALER_DIV256 (SPI_CR1_BR_2 | SPI_CR1_BR_1 | SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/256 */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_BIT_ORDER Transmission Bit Order + * @{ + */ +#define LL_SPI_LSB_FIRST (SPI_CR1_LSBFIRST) /*!< Data is transmitted/received with the LSB first */ +#define LL_SPI_MSB_FIRST 0x00000000U /*!< Data is transmitted/received with the MSB first */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_TRANSFER_MODE Transfer Mode + * @{ + */ +#define LL_SPI_FULL_DUPLEX 0x00000000U /*!< Full-Duplex mode. Rx and Tx transfer on 2 lines */ +#define LL_SPI_SIMPLEX_RX (SPI_CR1_RXONLY) /*!< Simplex Rx mode. Rx transfer only on 1 line */ +#define LL_SPI_HALF_DUPLEX_RX (SPI_CR1_BIDIMODE) /*!< Half-Duplex Rx mode. Rx transfer on 1 line */ +#define LL_SPI_HALF_DUPLEX_TX (SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE) /*!< Half-Duplex Tx mode. Tx transfer on 1 line */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_NSS_MODE Slave Select Pin Mode + * @{ + */ +#define LL_SPI_NSS_SOFT (SPI_CR1_SSM) /*!< NSS managed internally. NSS pin not used and free */ +#define LL_SPI_NSS_HARD_INPUT 0x00000000U /*!< NSS pin used in Input. Only used in Master mode */ +#define LL_SPI_NSS_HARD_OUTPUT (((uint32_t)SPI_CR2_SSOE << 16U)) /*!< NSS pin used in Output. Only used in Slave mode as chip select */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_DATAWIDTH Datawidth + * @{ + */ +#define LL_SPI_DATAWIDTH_4BIT (SPI_CR2_DS_0 | SPI_CR2_DS_1) /*!< Data length for SPI transfer: 4 bits */ +#define LL_SPI_DATAWIDTH_5BIT (SPI_CR2_DS_2) /*!< Data length for SPI transfer: 5 bits */ +#define LL_SPI_DATAWIDTH_6BIT (SPI_CR2_DS_2 | SPI_CR2_DS_0) /*!< Data length for SPI transfer: 6 bits */ +#define LL_SPI_DATAWIDTH_7BIT (SPI_CR2_DS_2 | SPI_CR2_DS_1) /*!< Data length for SPI transfer: 7 bits */ +#define LL_SPI_DATAWIDTH_8BIT (SPI_CR2_DS_2 | SPI_CR2_DS_1 | SPI_CR2_DS_0) /*!< Data length for SPI transfer: 8 bits */ +#define LL_SPI_DATAWIDTH_9BIT (SPI_CR2_DS_3) /*!< Data length for SPI transfer: 9 bits */ +#define LL_SPI_DATAWIDTH_10BIT (SPI_CR2_DS_3 | SPI_CR2_DS_0) /*!< Data length for SPI transfer: 10 bits */ +#define LL_SPI_DATAWIDTH_11BIT (SPI_CR2_DS_3 | SPI_CR2_DS_1) /*!< Data length for SPI transfer: 11 bits */ +#define LL_SPI_DATAWIDTH_12BIT (SPI_CR2_DS_3 | SPI_CR2_DS_1 | SPI_CR2_DS_0) /*!< Data length for SPI transfer: 12 bits */ +#define LL_SPI_DATAWIDTH_13BIT (SPI_CR2_DS_3 | SPI_CR2_DS_2) /*!< Data length for SPI transfer: 13 bits */ +#define LL_SPI_DATAWIDTH_14BIT (SPI_CR2_DS_3 | SPI_CR2_DS_2 | SPI_CR2_DS_0) /*!< Data length for SPI transfer: 14 bits */ +#define LL_SPI_DATAWIDTH_15BIT (SPI_CR2_DS_3 | SPI_CR2_DS_2 | SPI_CR2_DS_1) /*!< Data length for SPI transfer: 15 bits */ +#define LL_SPI_DATAWIDTH_16BIT (SPI_CR2_DS_3 | SPI_CR2_DS_2 | SPI_CR2_DS_1 | SPI_CR2_DS_0) /*!< Data length for SPI transfer: 16 bits */ +/** + * @} + */ +#if defined(USE_FULL_LL_DRIVER) + +/** @defgroup SPI_LL_EC_CRC_CALCULATION CRC Calculation + * @{ + */ +#define LL_SPI_CRCCALCULATION_DISABLE 0x00000000U /*!< CRC calculation disabled */ +#define LL_SPI_CRCCALCULATION_ENABLE (SPI_CR1_CRCEN) /*!< CRC calculation enabled */ +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ + +/** @defgroup SPI_LL_EC_CRC_LENGTH CRC Length + * @{ + */ +#define LL_SPI_CRC_8BIT 0x00000000U /*!< 8-bit CRC length */ +#define LL_SPI_CRC_16BIT (SPI_CR1_CRCL) /*!< 16-bit CRC length */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_RX_FIFO_TH RX FIFO Threshold + * @{ + */ +#define LL_SPI_RX_FIFO_TH_HALF 0x00000000U /*!< RXNE event is generated if FIFO level is greater than or equal to 1/2 (16-bit) */ +#define LL_SPI_RX_FIFO_TH_QUARTER (SPI_CR2_FRXTH) /*!< RXNE event is generated if FIFO level is greater than or equal to 1/4 (8-bit) */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_RX_FIFO RX FIFO Level + * @{ + */ +#define LL_SPI_RX_FIFO_EMPTY 0x00000000U /*!< FIFO reception empty */ +#define LL_SPI_RX_FIFO_QUARTER_FULL (SPI_SR_FRLVL_0) /*!< FIFO reception 1/4 */ +#define LL_SPI_RX_FIFO_HALF_FULL (SPI_SR_FRLVL_1) /*!< FIFO reception 1/2 */ +#define LL_SPI_RX_FIFO_FULL (SPI_SR_FRLVL_1 | SPI_SR_FRLVL_0) /*!< FIFO reception full */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_TX_FIFO TX FIFO Level + * @{ + */ +#define LL_SPI_TX_FIFO_EMPTY 0x00000000U /*!< FIFO transmission empty */ +#define LL_SPI_TX_FIFO_QUARTER_FULL (SPI_SR_FTLVL_0) /*!< FIFO transmission 1/4 */ +#define LL_SPI_TX_FIFO_HALF_FULL (SPI_SR_FTLVL_1) /*!< FIFO transmission 1/2 */ +#define LL_SPI_TX_FIFO_FULL (SPI_SR_FTLVL_1 | SPI_SR_FTLVL_0) /*!< FIFO transmission full */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_DMA_PARITY DMA Parity + * @{ + */ +#define LL_SPI_DMA_PARITY_EVEN 0x00000000U /*!< Select DMA parity Even */ +#define LL_SPI_DMA_PARITY_ODD 0x00000001U /*!< Select DMA parity Odd */ + +/** + * @} + */ + +/** + * @} + */ + +/* Exported macro ------------------------------------------------------------*/ +/** @defgroup SPI_LL_Exported_Macros SPI Exported Macros + * @{ + */ + +/** @defgroup SPI_LL_EM_WRITE_READ Common Write and read registers Macros + * @{ + */ + +/** + * @brief Write a value in SPI register + * @param __INSTANCE__ SPI Instance + * @param __REG__ Register to be written + * @param __VALUE__ Value to be written in the register + * @retval None + */ +#define LL_SPI_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__)) + +/** + * @brief Read a value in SPI register + * @param __INSTANCE__ SPI Instance + * @param __REG__ Register to be read + * @retval Register value + */ +#define LL_SPI_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__) +/** + * @} + */ + +/** + * @} + */ + +/* Exported functions --------------------------------------------------------*/ +/** @defgroup SPI_LL_Exported_Functions SPI Exported Functions + * @{ + */ + +/** @defgroup SPI_LL_EF_Configuration Configuration + * @{ + */ + +/** + * @brief Enable SPI peripheral + * @rmtoll CR1 SPE LL_SPI_Enable + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_Enable(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR1, SPI_CR1_SPE); +} + +/** + * @brief Disable SPI peripheral + * @note When disabling the SPI, follow the procedure described in the Reference Manual. + * @rmtoll CR1 SPE LL_SPI_Disable + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_Disable(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR1, SPI_CR1_SPE); +} + +/** + * @brief Check if SPI peripheral is enabled + * @rmtoll CR1 SPE LL_SPI_IsEnabled + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabled(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->CR1, SPI_CR1_SPE) == (SPI_CR1_SPE)) ? 1UL : 0UL); +} + +/** + * @brief Set SPI operation mode to Master or Slave + * @note This bit should not be changed when communication is ongoing. + * @rmtoll CR1 MSTR LL_SPI_SetMode\n + * CR1 SSI LL_SPI_SetMode + * @param SPIx SPI Instance + * @param Mode This parameter can be one of the following values: + * @arg @ref LL_SPI_MODE_MASTER + * @arg @ref LL_SPI_MODE_SLAVE + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetMode(SPI_TypeDef *SPIx, uint32_t Mode) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_MSTR | SPI_CR1_SSI, Mode); +} + +/** + * @brief Get SPI operation mode (Master or Slave) + * @rmtoll CR1 MSTR LL_SPI_GetMode\n + * CR1 SSI LL_SPI_GetMode + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_MODE_MASTER + * @arg @ref LL_SPI_MODE_SLAVE + */ +__STATIC_INLINE uint32_t LL_SPI_GetMode(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_MSTR | SPI_CR1_SSI)); +} + +/** + * @brief Set serial protocol used + * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. + * @rmtoll CR2 FRF LL_SPI_SetStandard + * @param SPIx SPI Instance + * @param Standard This parameter can be one of the following values: + * @arg @ref LL_SPI_PROTOCOL_MOTOROLA + * @arg @ref LL_SPI_PROTOCOL_TI + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetStandard(SPI_TypeDef *SPIx, uint32_t Standard) +{ + MODIFY_REG(SPIx->CR2, SPI_CR2_FRF, Standard); +} + +/** + * @brief Get serial protocol used + * @rmtoll CR2 FRF LL_SPI_GetStandard + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_PROTOCOL_MOTOROLA + * @arg @ref LL_SPI_PROTOCOL_TI + */ +__STATIC_INLINE uint32_t LL_SPI_GetStandard(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR2, SPI_CR2_FRF)); +} + +/** + * @brief Set clock phase + * @note This bit should not be changed when communication is ongoing. + * This bit is not used in SPI TI mode. + * @rmtoll CR1 CPHA LL_SPI_SetClockPhase + * @param SPIx SPI Instance + * @param ClockPhase This parameter can be one of the following values: + * @arg @ref LL_SPI_PHASE_1EDGE + * @arg @ref LL_SPI_PHASE_2EDGE + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetClockPhase(SPI_TypeDef *SPIx, uint32_t ClockPhase) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_CPHA, ClockPhase); +} + +/** + * @brief Get clock phase + * @rmtoll CR1 CPHA LL_SPI_GetClockPhase + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_PHASE_1EDGE + * @arg @ref LL_SPI_PHASE_2EDGE + */ +__STATIC_INLINE uint32_t LL_SPI_GetClockPhase(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_CPHA)); +} + +/** + * @brief Set clock polarity + * @note This bit should not be changed when communication is ongoing. + * This bit is not used in SPI TI mode. + * @rmtoll CR1 CPOL LL_SPI_SetClockPolarity + * @param SPIx SPI Instance + * @param ClockPolarity This parameter can be one of the following values: + * @arg @ref LL_SPI_POLARITY_LOW + * @arg @ref LL_SPI_POLARITY_HIGH + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetClockPolarity(SPI_TypeDef *SPIx, uint32_t ClockPolarity) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_CPOL, ClockPolarity); +} + +/** + * @brief Get clock polarity + * @rmtoll CR1 CPOL LL_SPI_GetClockPolarity + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_POLARITY_LOW + * @arg @ref LL_SPI_POLARITY_HIGH + */ +__STATIC_INLINE uint32_t LL_SPI_GetClockPolarity(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_CPOL)); +} + +/** + * @brief Set baud rate prescaler + * @note These bits should not be changed when communication is ongoing. SPI BaudRate = fPCLK/Prescaler. + * @rmtoll CR1 BR LL_SPI_SetBaudRatePrescaler + * @param SPIx SPI Instance + * @param BaudRate This parameter can be one of the following values: + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV2 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV4 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV8 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV16 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV32 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV64 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV128 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV256 + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetBaudRatePrescaler(SPI_TypeDef *SPIx, uint32_t BaudRate) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_BR, BaudRate); +} + +/** + * @brief Get baud rate prescaler + * @rmtoll CR1 BR LL_SPI_GetBaudRatePrescaler + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV2 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV4 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV8 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV16 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV32 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV64 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV128 + * @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV256 + */ +__STATIC_INLINE uint32_t LL_SPI_GetBaudRatePrescaler(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_BR)); +} + +/** + * @brief Set transfer bit order + * @note This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode. + * @rmtoll CR1 LSBFIRST LL_SPI_SetTransferBitOrder + * @param SPIx SPI Instance + * @param BitOrder This parameter can be one of the following values: + * @arg @ref LL_SPI_LSB_FIRST + * @arg @ref LL_SPI_MSB_FIRST + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetTransferBitOrder(SPI_TypeDef *SPIx, uint32_t BitOrder) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_LSBFIRST, BitOrder); +} + +/** + * @brief Get transfer bit order + * @rmtoll CR1 LSBFIRST LL_SPI_GetTransferBitOrder + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_LSB_FIRST + * @arg @ref LL_SPI_MSB_FIRST + */ +__STATIC_INLINE uint32_t LL_SPI_GetTransferBitOrder(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_LSBFIRST)); +} + +/** + * @brief Set transfer direction mode + * @note For Half-Duplex mode, Rx Direction is set by default. + * In master mode, the MOSI pin is used and in slave mode, the MISO pin is used for Half-Duplex. + * @rmtoll CR1 RXONLY LL_SPI_SetTransferDirection\n + * CR1 BIDIMODE LL_SPI_SetTransferDirection\n + * CR1 BIDIOE LL_SPI_SetTransferDirection + * @param SPIx SPI Instance + * @param TransferDirection This parameter can be one of the following values: + * @arg @ref LL_SPI_FULL_DUPLEX + * @arg @ref LL_SPI_SIMPLEX_RX + * @arg @ref LL_SPI_HALF_DUPLEX_RX + * @arg @ref LL_SPI_HALF_DUPLEX_TX + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetTransferDirection(SPI_TypeDef *SPIx, uint32_t TransferDirection) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_RXONLY | SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE, TransferDirection); +} + +/** + * @brief Get transfer direction mode + * @rmtoll CR1 RXONLY LL_SPI_GetTransferDirection\n + * CR1 BIDIMODE LL_SPI_GetTransferDirection\n + * CR1 BIDIOE LL_SPI_GetTransferDirection + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_FULL_DUPLEX + * @arg @ref LL_SPI_SIMPLEX_RX + * @arg @ref LL_SPI_HALF_DUPLEX_RX + * @arg @ref LL_SPI_HALF_DUPLEX_TX + */ +__STATIC_INLINE uint32_t LL_SPI_GetTransferDirection(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_RXONLY | SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE)); +} + +/** + * @brief Set frame data width + * @rmtoll CR2 DS LL_SPI_SetDataWidth + * @param SPIx SPI Instance + * @param DataWidth This parameter can be one of the following values: + * @arg @ref LL_SPI_DATAWIDTH_4BIT + * @arg @ref LL_SPI_DATAWIDTH_5BIT + * @arg @ref LL_SPI_DATAWIDTH_6BIT + * @arg @ref LL_SPI_DATAWIDTH_7BIT + * @arg @ref LL_SPI_DATAWIDTH_8BIT + * @arg @ref LL_SPI_DATAWIDTH_9BIT + * @arg @ref LL_SPI_DATAWIDTH_10BIT + * @arg @ref LL_SPI_DATAWIDTH_11BIT + * @arg @ref LL_SPI_DATAWIDTH_12BIT + * @arg @ref LL_SPI_DATAWIDTH_13BIT + * @arg @ref LL_SPI_DATAWIDTH_14BIT + * @arg @ref LL_SPI_DATAWIDTH_15BIT + * @arg @ref LL_SPI_DATAWIDTH_16BIT + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetDataWidth(SPI_TypeDef *SPIx, uint32_t DataWidth) +{ + MODIFY_REG(SPIx->CR2, SPI_CR2_DS, DataWidth); +} + +/** + * @brief Get frame data width + * @rmtoll CR2 DS LL_SPI_GetDataWidth + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_DATAWIDTH_4BIT + * @arg @ref LL_SPI_DATAWIDTH_5BIT + * @arg @ref LL_SPI_DATAWIDTH_6BIT + * @arg @ref LL_SPI_DATAWIDTH_7BIT + * @arg @ref LL_SPI_DATAWIDTH_8BIT + * @arg @ref LL_SPI_DATAWIDTH_9BIT + * @arg @ref LL_SPI_DATAWIDTH_10BIT + * @arg @ref LL_SPI_DATAWIDTH_11BIT + * @arg @ref LL_SPI_DATAWIDTH_12BIT + * @arg @ref LL_SPI_DATAWIDTH_13BIT + * @arg @ref LL_SPI_DATAWIDTH_14BIT + * @arg @ref LL_SPI_DATAWIDTH_15BIT + * @arg @ref LL_SPI_DATAWIDTH_16BIT + */ +__STATIC_INLINE uint32_t LL_SPI_GetDataWidth(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR2, SPI_CR2_DS)); +} + +/** + * @brief Set threshold of RXFIFO that triggers an RXNE event + * @rmtoll CR2 FRXTH LL_SPI_SetRxFIFOThreshold + * @param SPIx SPI Instance + * @param Threshold This parameter can be one of the following values: + * @arg @ref LL_SPI_RX_FIFO_TH_HALF + * @arg @ref LL_SPI_RX_FIFO_TH_QUARTER + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetRxFIFOThreshold(SPI_TypeDef *SPIx, uint32_t Threshold) +{ + MODIFY_REG(SPIx->CR2, SPI_CR2_FRXTH, Threshold); +} + +/** + * @brief Get threshold of RXFIFO that triggers an RXNE event + * @rmtoll CR2 FRXTH LL_SPI_GetRxFIFOThreshold + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_RX_FIFO_TH_HALF + * @arg @ref LL_SPI_RX_FIFO_TH_QUARTER + */ +__STATIC_INLINE uint32_t LL_SPI_GetRxFIFOThreshold(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR2, SPI_CR2_FRXTH)); +} + +/** + * @} + */ + +/** @defgroup SPI_LL_EF_CRC_Management CRC Management + * @{ + */ + +/** + * @brief Enable CRC + * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. + * @rmtoll CR1 CRCEN LL_SPI_EnableCRC + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableCRC(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR1, SPI_CR1_CRCEN); +} + +/** + * @brief Disable CRC + * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. + * @rmtoll CR1 CRCEN LL_SPI_DisableCRC + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableCRC(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR1, SPI_CR1_CRCEN); +} + +/** + * @brief Check if CRC is enabled + * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. + * @rmtoll CR1 CRCEN LL_SPI_IsEnabledCRC + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledCRC(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->CR1, SPI_CR1_CRCEN) == (SPI_CR1_CRCEN)) ? 1UL : 0UL); +} + +/** + * @brief Set CRC Length + * @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. + * @rmtoll CR1 CRCL LL_SPI_SetCRCWidth + * @param SPIx SPI Instance + * @param CRCLength This parameter can be one of the following values: + * @arg @ref LL_SPI_CRC_8BIT + * @arg @ref LL_SPI_CRC_16BIT + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetCRCWidth(SPI_TypeDef *SPIx, uint32_t CRCLength) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_CRCL, CRCLength); +} + +/** + * @brief Get CRC Length + * @rmtoll CR1 CRCL LL_SPI_GetCRCWidth + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_CRC_8BIT + * @arg @ref LL_SPI_CRC_16BIT + */ +__STATIC_INLINE uint32_t LL_SPI_GetCRCWidth(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_CRCL)); +} + +/** + * @brief Set CRCNext to transfer CRC on the line + * @note This bit has to be written as soon as the last data is written in the SPIx_DR register. + * @rmtoll CR1 CRCNEXT LL_SPI_SetCRCNext + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetCRCNext(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR1, SPI_CR1_CRCNEXT); +} + +/** + * @brief Set polynomial for CRC calculation + * @rmtoll CRCPR CRCPOLY LL_SPI_SetCRCPolynomial + * @param SPIx SPI Instance + * @param CRCPoly This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFFFF + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetCRCPolynomial(SPI_TypeDef *SPIx, uint32_t CRCPoly) +{ + WRITE_REG(SPIx->CRCPR, (uint16_t)CRCPoly); +} + +/** + * @brief Get polynomial for CRC calculation + * @rmtoll CRCPR CRCPOLY LL_SPI_GetCRCPolynomial + * @param SPIx SPI Instance + * @retval Returned value is a number between Min_Data = 0x00 and Max_Data = 0xFFFF + */ +__STATIC_INLINE uint32_t LL_SPI_GetCRCPolynomial(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_REG(SPIx->CRCPR)); +} + +/** + * @brief Get Rx CRC + * @rmtoll RXCRCR RXCRC LL_SPI_GetRxCRC + * @param SPIx SPI Instance + * @retval Returned value is a number between Min_Data = 0x00 and Max_Data = 0xFFFF + */ +__STATIC_INLINE uint32_t LL_SPI_GetRxCRC(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_REG(SPIx->RXCRCR)); +} + +/** + * @brief Get Tx CRC + * @rmtoll TXCRCR TXCRC LL_SPI_GetTxCRC + * @param SPIx SPI Instance + * @retval Returned value is a number between Min_Data = 0x00 and Max_Data = 0xFFFF + */ +__STATIC_INLINE uint32_t LL_SPI_GetTxCRC(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_REG(SPIx->TXCRCR)); +} + +/** + * @} + */ + +/** @defgroup SPI_LL_EF_NSS_Management Slave Select Pin Management + * @{ + */ + +/** + * @brief Set NSS mode + * @note LL_SPI_NSS_SOFT Mode is not used in SPI TI mode. + * @rmtoll CR1 SSM LL_SPI_SetNSSMode\n + * @rmtoll CR2 SSOE LL_SPI_SetNSSMode + * @param SPIx SPI Instance + * @param NSS This parameter can be one of the following values: + * @arg @ref LL_SPI_NSS_SOFT + * @arg @ref LL_SPI_NSS_HARD_INPUT + * @arg @ref LL_SPI_NSS_HARD_OUTPUT + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetNSSMode(SPI_TypeDef *SPIx, uint32_t NSS) +{ + MODIFY_REG(SPIx->CR1, SPI_CR1_SSM, NSS); + MODIFY_REG(SPIx->CR2, SPI_CR2_SSOE, ((uint32_t)(NSS >> 16U))); +} + +/** + * @brief Get NSS mode + * @rmtoll CR1 SSM LL_SPI_GetNSSMode\n + * @rmtoll CR2 SSOE LL_SPI_GetNSSMode + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_NSS_SOFT + * @arg @ref LL_SPI_NSS_HARD_INPUT + * @arg @ref LL_SPI_NSS_HARD_OUTPUT + */ +__STATIC_INLINE uint32_t LL_SPI_GetNSSMode(const SPI_TypeDef *SPIx) +{ + uint32_t Ssm = (READ_BIT(SPIx->CR1, SPI_CR1_SSM)); + uint32_t Ssoe = (READ_BIT(SPIx->CR2, SPI_CR2_SSOE) << 16U); + return (Ssm | Ssoe); +} + +/** + * @brief Enable NSS pulse management + * @note This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode. + * @rmtoll CR2 NSSP LL_SPI_EnableNSSPulseMgt + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableNSSPulseMgt(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR2, SPI_CR2_NSSP); +} + +/** + * @brief Disable NSS pulse management + * @note This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode. + * @rmtoll CR2 NSSP LL_SPI_DisableNSSPulseMgt + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableNSSPulseMgt(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR2, SPI_CR2_NSSP); +} + +/** + * @brief Check if NSS pulse is enabled + * @note This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode. + * @rmtoll CR2 NSSP LL_SPI_IsEnabledNSSPulse + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledNSSPulse(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->CR2, SPI_CR2_NSSP) == (SPI_CR2_NSSP)) ? 1UL : 0UL); +} + +/** + * @} + */ + +/** @defgroup SPI_LL_EF_FLAG_Management FLAG Management + * @{ + */ + +/** + * @brief Check if Rx buffer is not empty + * @rmtoll SR RXNE LL_SPI_IsActiveFlag_RXNE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_RXNE(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->SR, SPI_SR_RXNE) == (SPI_SR_RXNE)) ? 1UL : 0UL); +} + +/** + * @brief Check if Tx buffer is empty + * @rmtoll SR TXE LL_SPI_IsActiveFlag_TXE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_TXE(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->SR, SPI_SR_TXE) == (SPI_SR_TXE)) ? 1UL : 0UL); +} + +/** + * @brief Get CRC error flag + * @rmtoll SR CRCERR LL_SPI_IsActiveFlag_CRCERR + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_CRCERR(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->SR, SPI_SR_CRCERR) == (SPI_SR_CRCERR)) ? 1UL : 0UL); +} + +/** + * @brief Get mode fault error flag + * @rmtoll SR MODF LL_SPI_IsActiveFlag_MODF + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_MODF(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->SR, SPI_SR_MODF) == (SPI_SR_MODF)) ? 1UL : 0UL); +} + +/** + * @brief Get overrun error flag + * @rmtoll SR OVR LL_SPI_IsActiveFlag_OVR + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_OVR(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->SR, SPI_SR_OVR) == (SPI_SR_OVR)) ? 1UL : 0UL); +} + +/** + * @brief Get busy flag + * @note The BSY flag is cleared under any one of the following conditions: + * -When the SPI is correctly disabled + * -When a fault is detected in Master mode (MODF bit set to 1) + * -In Master mode, when it finishes a data transmission and no new data is ready to be + * sent + * -In Slave mode, when the BSY flag is set to '0' for at least one SPI clock cycle between + * each data transfer. + * @rmtoll SR BSY LL_SPI_IsActiveFlag_BSY + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_BSY(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->SR, SPI_SR_BSY) == (SPI_SR_BSY)) ? 1UL : 0UL); +} + +/** + * @brief Get frame format error flag + * @rmtoll SR FRE LL_SPI_IsActiveFlag_FRE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_FRE(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->SR, SPI_SR_FRE) == (SPI_SR_FRE)) ? 1UL : 0UL); +} + +/** + * @brief Get FIFO reception Level + * @rmtoll SR FRLVL LL_SPI_GetRxFIFOLevel + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_RX_FIFO_EMPTY + * @arg @ref LL_SPI_RX_FIFO_QUARTER_FULL + * @arg @ref LL_SPI_RX_FIFO_HALF_FULL + * @arg @ref LL_SPI_RX_FIFO_FULL + */ +__STATIC_INLINE uint32_t LL_SPI_GetRxFIFOLevel(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->SR, SPI_SR_FRLVL)); +} + +/** + * @brief Get FIFO Transmission Level + * @rmtoll SR FTLVL LL_SPI_GetTxFIFOLevel + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_TX_FIFO_EMPTY + * @arg @ref LL_SPI_TX_FIFO_QUARTER_FULL + * @arg @ref LL_SPI_TX_FIFO_HALF_FULL + * @arg @ref LL_SPI_TX_FIFO_FULL + */ +__STATIC_INLINE uint32_t LL_SPI_GetTxFIFOLevel(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->SR, SPI_SR_FTLVL)); +} + +/** + * @brief Clear CRC error flag + * @rmtoll SR CRCERR LL_SPI_ClearFlag_CRCERR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_ClearFlag_CRCERR(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->SR, SPI_SR_CRCERR); +} + +/** + * @brief Clear mode fault error flag + * @note Clearing this flag is done by a read access to the SPIx_SR + * register followed by a write access to the SPIx_CR1 register + * @rmtoll SR MODF LL_SPI_ClearFlag_MODF + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_ClearFlag_MODF(SPI_TypeDef *SPIx) +{ + __IO uint32_t tmpreg_sr; + tmpreg_sr = SPIx->SR; + (void) tmpreg_sr; + CLEAR_BIT(SPIx->CR1, SPI_CR1_SPE); +} + +/** + * @brief Clear overrun error flag + * @note Clearing this flag is done by a read access to the SPIx_DR + * register followed by a read access to the SPIx_SR register + * @rmtoll SR OVR LL_SPI_ClearFlag_OVR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_ClearFlag_OVR(const SPI_TypeDef *SPIx) +{ + __IO uint32_t tmpreg; + tmpreg = SPIx->DR; + (void) tmpreg; + tmpreg = SPIx->SR; + (void) tmpreg; +} + +/** + * @brief Clear frame format error flag + * @note Clearing this flag is done by reading SPIx_SR register + * @rmtoll SR FRE LL_SPI_ClearFlag_FRE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_ClearFlag_FRE(const SPI_TypeDef *SPIx) +{ + __IO uint32_t tmpreg; + tmpreg = SPIx->SR; + (void) tmpreg; +} + +/** + * @} + */ + +/** @defgroup SPI_LL_EF_IT_Management Interrupt Management + * @{ + */ + +/** + * @brief Enable error interrupt + * @note This bit controls the generation of an interrupt when an error condition + * occurs (CRCERR, OVR, MODF in SPI mode, FRE at TI mode). + * @rmtoll CR2 ERRIE LL_SPI_EnableIT_ERR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableIT_ERR(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR2, SPI_CR2_ERRIE); +} + +/** + * @brief Enable Rx buffer not empty interrupt + * @rmtoll CR2 RXNEIE LL_SPI_EnableIT_RXNE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableIT_RXNE(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR2, SPI_CR2_RXNEIE); +} + +/** + * @brief Enable Tx buffer empty interrupt + * @rmtoll CR2 TXEIE LL_SPI_EnableIT_TXE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableIT_TXE(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR2, SPI_CR2_TXEIE); +} + +/** + * @brief Disable error interrupt + * @note This bit controls the generation of an interrupt when an error condition + * occurs (CRCERR, OVR, MODF in SPI mode, FRE at TI mode). + * @rmtoll CR2 ERRIE LL_SPI_DisableIT_ERR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableIT_ERR(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR2, SPI_CR2_ERRIE); +} + +/** + * @brief Disable Rx buffer not empty interrupt + * @rmtoll CR2 RXNEIE LL_SPI_DisableIT_RXNE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableIT_RXNE(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR2, SPI_CR2_RXNEIE); +} + +/** + * @brief Disable Tx buffer empty interrupt + * @rmtoll CR2 TXEIE LL_SPI_DisableIT_TXE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableIT_TXE(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR2, SPI_CR2_TXEIE); +} + +/** + * @brief Check if error interrupt is enabled + * @rmtoll CR2 ERRIE LL_SPI_IsEnabledIT_ERR + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_ERR(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->CR2, SPI_CR2_ERRIE) == (SPI_CR2_ERRIE)) ? 1UL : 0UL); +} + +/** + * @brief Check if Rx buffer not empty interrupt is enabled + * @rmtoll CR2 RXNEIE LL_SPI_IsEnabledIT_RXNE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_RXNE(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->CR2, SPI_CR2_RXNEIE) == (SPI_CR2_RXNEIE)) ? 1UL : 0UL); +} + +/** + * @brief Check if Tx buffer empty interrupt + * @rmtoll CR2 TXEIE LL_SPI_IsEnabledIT_TXE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_TXE(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->CR2, SPI_CR2_TXEIE) == (SPI_CR2_TXEIE)) ? 1UL : 0UL); +} + +/** + * @} + */ + +/** @defgroup SPI_LL_EF_DMA_Management DMA Management + * @{ + */ + +/** + * @brief Enable DMA Rx + * @rmtoll CR2 RXDMAEN LL_SPI_EnableDMAReq_RX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableDMAReq_RX(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR2, SPI_CR2_RXDMAEN); +} + +/** + * @brief Disable DMA Rx + * @rmtoll CR2 RXDMAEN LL_SPI_DisableDMAReq_RX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableDMAReq_RX(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR2, SPI_CR2_RXDMAEN); +} + +/** + * @brief Check if DMA Rx is enabled + * @rmtoll CR2 RXDMAEN LL_SPI_IsEnabledDMAReq_RX + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledDMAReq_RX(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->CR2, SPI_CR2_RXDMAEN) == (SPI_CR2_RXDMAEN)) ? 1UL : 0UL); +} + +/** + * @brief Enable DMA Tx + * @rmtoll CR2 TXDMAEN LL_SPI_EnableDMAReq_TX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_EnableDMAReq_TX(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->CR2, SPI_CR2_TXDMAEN); +} + +/** + * @brief Disable DMA Tx + * @rmtoll CR2 TXDMAEN LL_SPI_DisableDMAReq_TX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_SPI_DisableDMAReq_TX(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->CR2, SPI_CR2_TXDMAEN); +} + +/** + * @brief Check if DMA Tx is enabled + * @rmtoll CR2 TXDMAEN LL_SPI_IsEnabledDMAReq_TX + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_SPI_IsEnabledDMAReq_TX(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->CR2, SPI_CR2_TXDMAEN) == (SPI_CR2_TXDMAEN)) ? 1UL : 0UL); +} + +/** + * @brief Set parity of Last DMA reception + * @rmtoll CR2 LDMARX LL_SPI_SetDMAParity_RX + * @param SPIx SPI Instance + * @param Parity This parameter can be one of the following values: + * @arg @ref LL_SPI_DMA_PARITY_ODD + * @arg @ref LL_SPI_DMA_PARITY_EVEN + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetDMAParity_RX(SPI_TypeDef *SPIx, uint32_t Parity) +{ + MODIFY_REG(SPIx->CR2, SPI_CR2_LDMARX, (Parity << SPI_CR2_LDMARX_Pos)); +} + +/** + * @brief Get parity configuration for Last DMA reception + * @rmtoll CR2 LDMARX LL_SPI_GetDMAParity_RX + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_DMA_PARITY_ODD + * @arg @ref LL_SPI_DMA_PARITY_EVEN + */ +__STATIC_INLINE uint32_t LL_SPI_GetDMAParity_RX(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR2, SPI_CR2_LDMARX) >> SPI_CR2_LDMARX_Pos); +} + +/** + * @brief Set parity of Last DMA transmission + * @rmtoll CR2 LDMATX LL_SPI_SetDMAParity_TX + * @param SPIx SPI Instance + * @param Parity This parameter can be one of the following values: + * @arg @ref LL_SPI_DMA_PARITY_ODD + * @arg @ref LL_SPI_DMA_PARITY_EVEN + * @retval None + */ +__STATIC_INLINE void LL_SPI_SetDMAParity_TX(SPI_TypeDef *SPIx, uint32_t Parity) +{ + MODIFY_REG(SPIx->CR2, SPI_CR2_LDMATX, (Parity << SPI_CR2_LDMATX_Pos)); +} + +/** + * @brief Get parity configuration for Last DMA transmission + * @rmtoll CR2 LDMATX LL_SPI_GetDMAParity_TX + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_SPI_DMA_PARITY_ODD + * @arg @ref LL_SPI_DMA_PARITY_EVEN + */ +__STATIC_INLINE uint32_t LL_SPI_GetDMAParity_TX(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->CR2, SPI_CR2_LDMATX) >> SPI_CR2_LDMATX_Pos); +} + +/** + * @brief Get the data register address used for DMA transfer + * @rmtoll DR DR LL_SPI_DMA_GetRegAddr + * @param SPIx SPI Instance + * @retval Address of data register + */ +__STATIC_INLINE uint32_t LL_SPI_DMA_GetRegAddr(const SPI_TypeDef *SPIx) +{ + return (uint32_t) &(SPIx->DR); +} + +/** + * @} + */ + +/** @defgroup SPI_LL_EF_DATA_Management DATA Management + * @{ + */ + +/** + * @brief Read 8-Bits in the data register + * @rmtoll DR DR LL_SPI_ReceiveData8 + * @param SPIx SPI Instance + * @retval RxData Value between Min_Data=0x00 and Max_Data=0xFF + */ +__STATIC_INLINE uint8_t LL_SPI_ReceiveData8(SPI_TypeDef *SPIx) +{ + return (*((__IO uint8_t *)&SPIx->DR)); +} + +/** + * @brief Read 16-Bits in the data register + * @rmtoll DR DR LL_SPI_ReceiveData16 + * @param SPIx SPI Instance + * @retval RxData Value between Min_Data=0x00 and Max_Data=0xFFFF + */ +__STATIC_INLINE uint16_t LL_SPI_ReceiveData16(SPI_TypeDef *SPIx) +{ + return (uint16_t)(READ_REG(SPIx->DR)); +} + +/** + * @brief Write 8-Bits in the data register + * @rmtoll DR DR LL_SPI_TransmitData8 + * @param SPIx SPI Instance + * @param TxData Value between Min_Data=0x00 and Max_Data=0xFF + * @retval None + */ +__STATIC_INLINE void LL_SPI_TransmitData8(SPI_TypeDef *SPIx, uint8_t TxData) +{ +#if defined (__GNUC__) + __IO uint8_t *spidr = ((__IO uint8_t *)&SPIx->DR); + *spidr = TxData; +#else + *((__IO uint8_t *)&SPIx->DR) = TxData; +#endif /* __GNUC__ */ +} + +/** + * @brief Write 16-Bits in the data register + * @rmtoll DR DR LL_SPI_TransmitData16 + * @param SPIx SPI Instance + * @param TxData Value between Min_Data=0x00 and Max_Data=0xFFFF + * @retval None + */ +__STATIC_INLINE void LL_SPI_TransmitData16(SPI_TypeDef *SPIx, uint16_t TxData) +{ +#if defined (__GNUC__) + __IO uint16_t *spidr = ((__IO uint16_t *)&SPIx->DR); + *spidr = TxData; +#else + SPIx->DR = TxData; +#endif /* __GNUC__ */ +} + +/** + * @} + */ +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup SPI_LL_EF_Init Initialization and de-initialization functions + * @{ + */ + +ErrorStatus LL_SPI_DeInit(const SPI_TypeDef *SPIx); +ErrorStatus LL_SPI_Init(SPI_TypeDef *SPIx, LL_SPI_InitTypeDef *SPI_InitStruct); +void LL_SPI_StructInit(LL_SPI_InitTypeDef *SPI_InitStruct); + +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ +/** + * @} + */ + +/** + * @} + */ + +#if defined(SPI_I2S_SUPPORT) +/** @defgroup I2S_LL I2S + * @{ + */ + +/* Private variables ---------------------------------------------------------*/ +/* Private constants ---------------------------------------------------------*/ +/* Private macros ------------------------------------------------------------*/ + +/* Exported types ------------------------------------------------------------*/ +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup I2S_LL_ES_INIT I2S Exported Init structure + * @{ + */ + +/** + * @brief I2S Init structure definition + */ + +typedef struct +{ + uint32_t Mode; /*!< Specifies the I2S operating mode. + This parameter can be a value of @ref I2S_LL_EC_MODE + + This feature can be modified afterwards using unitary function @ref LL_I2S_SetTransferMode().*/ + + uint32_t Standard; /*!< Specifies the standard used for the I2S communication. + This parameter can be a value of @ref I2S_LL_EC_STANDARD + + This feature can be modified afterwards using unitary function @ref LL_I2S_SetStandard().*/ + + + uint32_t DataFormat; /*!< Specifies the data format for the I2S communication. + This parameter can be a value of @ref I2S_LL_EC_DATA_FORMAT + + This feature can be modified afterwards using unitary function @ref LL_I2S_SetDataFormat().*/ + + + uint32_t MCLKOutput; /*!< Specifies whether the I2S MCLK output is enabled or not. + This parameter can be a value of @ref I2S_LL_EC_MCLK_OUTPUT + + This feature can be modified afterwards using unitary functions @ref LL_I2S_EnableMasterClock() or @ref LL_I2S_DisableMasterClock.*/ + + + uint32_t AudioFreq; /*!< Specifies the frequency selected for the I2S communication. + This parameter can be a value of @ref I2S_LL_EC_AUDIO_FREQ + + Audio Frequency can be modified afterwards using Reference manual formulas to calculate Prescaler Linear, Parity + and unitary functions @ref LL_I2S_SetPrescalerLinear() and @ref LL_I2S_SetPrescalerParity() to set it.*/ + + + uint32_t ClockPolarity; /*!< Specifies the idle state of the I2S clock. + This parameter can be a value of @ref I2S_LL_EC_POLARITY + + This feature can be modified afterwards using unitary function @ref LL_I2S_SetClockPolarity().*/ + +} LL_I2S_InitTypeDef; + +/** + * @} + */ +#endif /*USE_FULL_LL_DRIVER*/ + +/* Exported constants --------------------------------------------------------*/ +/** @defgroup I2S_LL_Exported_Constants I2S Exported Constants + * @{ + */ + +/** @defgroup I2S_LL_EC_GET_FLAG Get Flags Defines + * @brief Flags defines which can be used with LL_I2S_ReadReg function + * @{ + */ +#define LL_I2S_SR_RXNE LL_SPI_SR_RXNE /*!< Rx buffer not empty flag */ +#define LL_I2S_SR_TXE LL_SPI_SR_TXE /*!< Tx buffer empty flag */ +#define LL_I2S_SR_BSY LL_SPI_SR_BSY /*!< Busy flag */ +#define LL_I2S_SR_UDR SPI_SR_UDR /*!< Underrun flag */ +#define LL_I2S_SR_OVR LL_SPI_SR_OVR /*!< Overrun flag */ +#define LL_I2S_SR_FRE LL_SPI_SR_FRE /*!< TI mode frame format error flag */ +/** + * @} + */ + +/** @defgroup SPI_LL_EC_IT IT Defines + * @brief IT defines which can be used with LL_SPI_ReadReg and LL_SPI_WriteReg functions + * @{ + */ +#define LL_I2S_CR2_RXNEIE LL_SPI_CR2_RXNEIE /*!< Rx buffer not empty interrupt enable */ +#define LL_I2S_CR2_TXEIE LL_SPI_CR2_TXEIE /*!< Tx buffer empty interrupt enable */ +#define LL_I2S_CR2_ERRIE LL_SPI_CR2_ERRIE /*!< Error interrupt enable */ +/** + * @} + */ + +/** @defgroup I2S_LL_EC_DATA_FORMAT Data format + * @{ + */ +#define LL_I2S_DATAFORMAT_16B 0x00000000U /*!< Data length 16 bits, Channel length 16bit */ +#define LL_I2S_DATAFORMAT_16B_EXTENDED (SPI_I2SCFGR_CHLEN) /*!< Data length 16 bits, Channel length 32bit */ +#define LL_I2S_DATAFORMAT_24B (SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN_0) /*!< Data length 24 bits, Channel length 32bit */ +#define LL_I2S_DATAFORMAT_32B (SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN_1) /*!< Data length 16 bits, Channel length 32bit */ +/** + * @} + */ + +/** @defgroup I2S_LL_EC_POLARITY Clock Polarity + * @{ + */ +#define LL_I2S_POLARITY_LOW 0x00000000U /*!< Clock steady state is low level */ +#define LL_I2S_POLARITY_HIGH (SPI_I2SCFGR_CKPOL) /*!< Clock steady state is high level */ +/** + * @} + */ + +/** @defgroup I2S_LL_EC_STANDARD I2s Standard + * @{ + */ +#define LL_I2S_STANDARD_PHILIPS 0x00000000U /*!< I2S standard philips */ +#define LL_I2S_STANDARD_MSB (SPI_I2SCFGR_I2SSTD_0) /*!< MSB justified standard (left justified) */ +#define LL_I2S_STANDARD_LSB (SPI_I2SCFGR_I2SSTD_1) /*!< LSB justified standard (right justified) */ +#define LL_I2S_STANDARD_PCM_SHORT (SPI_I2SCFGR_I2SSTD_0 | SPI_I2SCFGR_I2SSTD_1) /*!< PCM standard, short frame synchronization */ +#define LL_I2S_STANDARD_PCM_LONG (SPI_I2SCFGR_I2SSTD_0 | SPI_I2SCFGR_I2SSTD_1 | SPI_I2SCFGR_PCMSYNC) /*!< PCM standard, long frame synchronization */ +/** + * @} + */ + +/** @defgroup I2S_LL_EC_MODE Operation Mode + * @{ + */ +#define LL_I2S_MODE_SLAVE_TX 0x00000000U /*!< Slave Tx configuration */ +#define LL_I2S_MODE_SLAVE_RX (SPI_I2SCFGR_I2SCFG_0) /*!< Slave Rx configuration */ +#define LL_I2S_MODE_MASTER_TX (SPI_I2SCFGR_I2SCFG_1) /*!< Master Tx configuration */ +#define LL_I2S_MODE_MASTER_RX (SPI_I2SCFGR_I2SCFG_0 | SPI_I2SCFGR_I2SCFG_1) /*!< Master Rx configuration */ +/** + * @} + */ + +/** @defgroup I2S_LL_EC_PRESCALER_FACTOR Prescaler Factor + * @{ + */ +#define LL_I2S_PRESCALER_PARITY_EVEN 0x00000000U /*!< Odd factor: Real divider value is = I2SDIV * 2 */ +#define LL_I2S_PRESCALER_PARITY_ODD (SPI_I2SPR_ODD >> 8U) /*!< Odd factor: Real divider value is = (I2SDIV * 2)+1 */ +/** + * @} + */ + +#if defined(USE_FULL_LL_DRIVER) + +/** @defgroup I2S_LL_EC_MCLK_OUTPUT MCLK Output + * @{ + */ +#define LL_I2S_MCLK_OUTPUT_DISABLE 0x00000000U /*!< Master clock output is disabled */ +#define LL_I2S_MCLK_OUTPUT_ENABLE (SPI_I2SPR_MCKOE) /*!< Master clock output is enabled */ +/** + * @} + */ + +/** @defgroup I2S_LL_EC_AUDIO_FREQ Audio Frequency + * @{ + */ + +#define LL_I2S_AUDIOFREQ_192K 192000U /*!< Audio Frequency configuration 192000 Hz */ +#define LL_I2S_AUDIOFREQ_96K 96000U /*!< Audio Frequency configuration 96000 Hz */ +#define LL_I2S_AUDIOFREQ_48K 48000U /*!< Audio Frequency configuration 48000 Hz */ +#define LL_I2S_AUDIOFREQ_44K 44100U /*!< Audio Frequency configuration 44100 Hz */ +#define LL_I2S_AUDIOFREQ_32K 32000U /*!< Audio Frequency configuration 32000 Hz */ +#define LL_I2S_AUDIOFREQ_22K 22050U /*!< Audio Frequency configuration 22050 Hz */ +#define LL_I2S_AUDIOFREQ_16K 16000U /*!< Audio Frequency configuration 16000 Hz */ +#define LL_I2S_AUDIOFREQ_11K 11025U /*!< Audio Frequency configuration 11025 Hz */ +#define LL_I2S_AUDIOFREQ_8K 8000U /*!< Audio Frequency configuration 8000 Hz */ +#define LL_I2S_AUDIOFREQ_DEFAULT 2U /*!< Audio Freq not specified. Register I2SDIV = 2 */ +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ + +/** + * @} + */ + +/* Exported macro ------------------------------------------------------------*/ +/** @defgroup I2S_LL_Exported_Macros I2S Exported Macros + * @{ + */ + +/** @defgroup I2S_LL_EM_WRITE_READ Common Write and read registers Macros + * @{ + */ + +/** + * @brief Write a value in I2S register + * @param __INSTANCE__ I2S Instance + * @param __REG__ Register to be written + * @param __VALUE__ Value to be written in the register + * @retval None + */ +#define LL_I2S_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__)) + +/** + * @brief Read a value in I2S register + * @param __INSTANCE__ I2S Instance + * @param __REG__ Register to be read + * @retval Register value + */ +#define LL_I2S_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__) +/** + * @} + */ + +/** + * @} + */ + + +/* Exported functions --------------------------------------------------------*/ + +/** @defgroup I2S_LL_Exported_Functions I2S Exported Functions + * @{ + */ + +/** @defgroup I2S_LL_EF_Configuration Configuration + * @{ + */ + +/** + * @brief Select I2S mode and Enable I2S peripheral + * @rmtoll I2SCFGR I2SMOD LL_I2S_Enable\n + * I2SCFGR I2SE LL_I2S_Enable + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_Enable(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SMOD | SPI_I2SCFGR_I2SE); +} + +/** + * @brief Disable I2S peripheral + * @rmtoll I2SCFGR I2SE LL_I2S_Disable + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_Disable(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SMOD | SPI_I2SCFGR_I2SE); +} + +/** + * @brief Check if I2S peripheral is enabled + * @rmtoll I2SCFGR I2SE LL_I2S_IsEnabled + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabled(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SE) == (SPI_I2SCFGR_I2SE)) ? 1UL : 0UL); +} + +/** + * @brief Set I2S data frame length + * @rmtoll I2SCFGR DATLEN LL_I2S_SetDataFormat\n + * I2SCFGR CHLEN LL_I2S_SetDataFormat + * @param SPIx SPI Instance + * @param DataFormat This parameter can be one of the following values: + * @arg @ref LL_I2S_DATAFORMAT_16B + * @arg @ref LL_I2S_DATAFORMAT_16B_EXTENDED + * @arg @ref LL_I2S_DATAFORMAT_24B + * @arg @ref LL_I2S_DATAFORMAT_32B + * @retval None + */ +__STATIC_INLINE void LL_I2S_SetDataFormat(SPI_TypeDef *SPIx, uint32_t DataFormat) +{ + MODIFY_REG(SPIx->I2SCFGR, SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN, DataFormat); +} + +/** + * @brief Get I2S data frame length + * @rmtoll I2SCFGR DATLEN LL_I2S_GetDataFormat\n + * I2SCFGR CHLEN LL_I2S_GetDataFormat + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_I2S_DATAFORMAT_16B + * @arg @ref LL_I2S_DATAFORMAT_16B_EXTENDED + * @arg @ref LL_I2S_DATAFORMAT_24B + * @arg @ref LL_I2S_DATAFORMAT_32B + */ +__STATIC_INLINE uint32_t LL_I2S_GetDataFormat(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)); +} + +/** + * @brief Set I2S clock polarity + * @rmtoll I2SCFGR CKPOL LL_I2S_SetClockPolarity + * @param SPIx SPI Instance + * @param ClockPolarity This parameter can be one of the following values: + * @arg @ref LL_I2S_POLARITY_LOW + * @arg @ref LL_I2S_POLARITY_HIGH + * @retval None + */ +__STATIC_INLINE void LL_I2S_SetClockPolarity(SPI_TypeDef *SPIx, uint32_t ClockPolarity) +{ + SET_BIT(SPIx->I2SCFGR, ClockPolarity); +} + +/** + * @brief Get I2S clock polarity + * @rmtoll I2SCFGR CKPOL LL_I2S_GetClockPolarity + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_I2S_POLARITY_LOW + * @arg @ref LL_I2S_POLARITY_HIGH + */ +__STATIC_INLINE uint32_t LL_I2S_GetClockPolarity(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_CKPOL)); +} + +/** + * @brief Set I2S standard protocol + * @rmtoll I2SCFGR I2SSTD LL_I2S_SetStandard\n + * I2SCFGR PCMSYNC LL_I2S_SetStandard + * @param SPIx SPI Instance + * @param Standard This parameter can be one of the following values: + * @arg @ref LL_I2S_STANDARD_PHILIPS + * @arg @ref LL_I2S_STANDARD_MSB + * @arg @ref LL_I2S_STANDARD_LSB + * @arg @ref LL_I2S_STANDARD_PCM_SHORT + * @arg @ref LL_I2S_STANDARD_PCM_LONG + * @retval None + */ +__STATIC_INLINE void LL_I2S_SetStandard(SPI_TypeDef *SPIx, uint32_t Standard) +{ + MODIFY_REG(SPIx->I2SCFGR, SPI_I2SCFGR_I2SSTD | SPI_I2SCFGR_PCMSYNC, Standard); +} + +/** + * @brief Get I2S standard protocol + * @rmtoll I2SCFGR I2SSTD LL_I2S_GetStandard\n + * I2SCFGR PCMSYNC LL_I2S_GetStandard + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_I2S_STANDARD_PHILIPS + * @arg @ref LL_I2S_STANDARD_MSB + * @arg @ref LL_I2S_STANDARD_LSB + * @arg @ref LL_I2S_STANDARD_PCM_SHORT + * @arg @ref LL_I2S_STANDARD_PCM_LONG + */ +__STATIC_INLINE uint32_t LL_I2S_GetStandard(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SSTD | SPI_I2SCFGR_PCMSYNC)); +} + +/** + * @brief Set I2S transfer mode + * @rmtoll I2SCFGR I2SCFG LL_I2S_SetTransferMode + * @param SPIx SPI Instance + * @param Mode This parameter can be one of the following values: + * @arg @ref LL_I2S_MODE_SLAVE_TX + * @arg @ref LL_I2S_MODE_SLAVE_RX + * @arg @ref LL_I2S_MODE_MASTER_TX + * @arg @ref LL_I2S_MODE_MASTER_RX + * @retval None + */ +__STATIC_INLINE void LL_I2S_SetTransferMode(SPI_TypeDef *SPIx, uint32_t Mode) +{ + MODIFY_REG(SPIx->I2SCFGR, SPI_I2SCFGR_I2SCFG, Mode); +} + +/** + * @brief Get I2S transfer mode + * @rmtoll I2SCFGR I2SCFG LL_I2S_GetTransferMode + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_I2S_MODE_SLAVE_TX + * @arg @ref LL_I2S_MODE_SLAVE_RX + * @arg @ref LL_I2S_MODE_MASTER_TX + * @arg @ref LL_I2S_MODE_MASTER_RX + */ +__STATIC_INLINE uint32_t LL_I2S_GetTransferMode(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SCFG)); +} + +/** + * @brief Set I2S linear prescaler + * @rmtoll I2SPR I2SDIV LL_I2S_SetPrescalerLinear + * @param SPIx SPI Instance + * @param PrescalerLinear Value between Min_Data=0x02 and Max_Data=0xFF + * @retval None + */ +__STATIC_INLINE void LL_I2S_SetPrescalerLinear(SPI_TypeDef *SPIx, uint8_t PrescalerLinear) +{ + MODIFY_REG(SPIx->I2SPR, SPI_I2SPR_I2SDIV, PrescalerLinear); +} + +/** + * @brief Get I2S linear prescaler + * @rmtoll I2SPR I2SDIV LL_I2S_GetPrescalerLinear + * @param SPIx SPI Instance + * @retval PrescalerLinear Value between Min_Data=0x02 and Max_Data=0xFF + */ +__STATIC_INLINE uint32_t LL_I2S_GetPrescalerLinear(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->I2SPR, SPI_I2SPR_I2SDIV)); +} + +/** + * @brief Set I2S parity prescaler + * @rmtoll I2SPR ODD LL_I2S_SetPrescalerParity + * @param SPIx SPI Instance + * @param PrescalerParity This parameter can be one of the following values: + * @arg @ref LL_I2S_PRESCALER_PARITY_EVEN + * @arg @ref LL_I2S_PRESCALER_PARITY_ODD + * @retval None + */ +__STATIC_INLINE void LL_I2S_SetPrescalerParity(SPI_TypeDef *SPIx, uint32_t PrescalerParity) +{ + MODIFY_REG(SPIx->I2SPR, SPI_I2SPR_ODD, PrescalerParity << 8U); +} + +/** + * @brief Get I2S parity prescaler + * @rmtoll I2SPR ODD LL_I2S_GetPrescalerParity + * @param SPIx SPI Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_I2S_PRESCALER_PARITY_EVEN + * @arg @ref LL_I2S_PRESCALER_PARITY_ODD + */ +__STATIC_INLINE uint32_t LL_I2S_GetPrescalerParity(const SPI_TypeDef *SPIx) +{ + return (uint32_t)(READ_BIT(SPIx->I2SPR, SPI_I2SPR_ODD) >> 8U); +} + +/** + * @brief Enable the master clock output (Pin MCK) + * @rmtoll I2SPR MCKOE LL_I2S_EnableMasterClock + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableMasterClock(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->I2SPR, SPI_I2SPR_MCKOE); +} + +/** + * @brief Disable the master clock output (Pin MCK) + * @rmtoll I2SPR MCKOE LL_I2S_DisableMasterClock + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableMasterClock(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->I2SPR, SPI_I2SPR_MCKOE); +} + +/** + * @brief Check if the master clock output (Pin MCK) is enabled + * @rmtoll I2SPR MCKOE LL_I2S_IsEnabledMasterClock + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledMasterClock(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->I2SPR, SPI_I2SPR_MCKOE) == (SPI_I2SPR_MCKOE)) ? 1UL : 0UL); +} + +#if defined(SPI_I2SCFGR_ASTRTEN) +/** + * @brief Enable asynchronous start + * @rmtoll I2SCFGR ASTRTEN LL_I2S_EnableAsyncStart + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableAsyncStart(SPI_TypeDef *SPIx) +{ + SET_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_ASTRTEN); +} + +/** + * @brief Disable asynchronous start + * @rmtoll I2SCFGR ASTRTEN LL_I2S_DisableAsyncStart + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableAsyncStart(SPI_TypeDef *SPIx) +{ + CLEAR_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_ASTRTEN); +} + +/** + * @brief Check if asynchronous start is enabled + * @rmtoll I2SCFGR ASTRTEN LL_I2S_IsEnabledAsyncStart + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledAsyncStart(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_ASTRTEN) == (SPI_I2SCFGR_ASTRTEN)) ? 1UL : 0UL); +} +#endif /* SPI_I2SCFGR_ASTRTEN */ + +/** + * @} + */ + +/** @defgroup I2S_LL_EF_FLAG FLAG Management + * @{ + */ + +/** + * @brief Check if Rx buffer is not empty + * @rmtoll SR RXNE LL_I2S_IsActiveFlag_RXNE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_RXNE(const SPI_TypeDef *SPIx) +{ + return LL_SPI_IsActiveFlag_RXNE(SPIx); +} + +/** + * @brief Check if Tx buffer is empty + * @rmtoll SR TXE LL_I2S_IsActiveFlag_TXE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_TXE(const SPI_TypeDef *SPIx) +{ + return LL_SPI_IsActiveFlag_TXE(SPIx); +} + +/** + * @brief Get busy flag + * @rmtoll SR BSY LL_I2S_IsActiveFlag_BSY + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_BSY(const SPI_TypeDef *SPIx) +{ + return LL_SPI_IsActiveFlag_BSY(SPIx); +} + +/** + * @brief Get overrun error flag + * @rmtoll SR OVR LL_I2S_IsActiveFlag_OVR + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_OVR(const SPI_TypeDef *SPIx) +{ + return LL_SPI_IsActiveFlag_OVR(SPIx); +} + +/** + * @brief Get underrun error flag + * @rmtoll SR UDR LL_I2S_IsActiveFlag_UDR + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_UDR(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->SR, SPI_SR_UDR) == (SPI_SR_UDR)) ? 1UL : 0UL); +} + +/** + * @brief Get frame format error flag + * @rmtoll SR FRE LL_I2S_IsActiveFlag_FRE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_FRE(const SPI_TypeDef *SPIx) +{ + return LL_SPI_IsActiveFlag_FRE(SPIx); +} + +/** + * @brief Get channel side flag. + * @note 0: Channel Left has to be transmitted or has been received\n + * 1: Channel Right has to be transmitted or has been received\n + * It has no significance in PCM mode. + * @rmtoll SR CHSIDE LL_I2S_IsActiveFlag_CHSIDE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_CHSIDE(const SPI_TypeDef *SPIx) +{ + return ((READ_BIT(SPIx->SR, SPI_SR_CHSIDE) == (SPI_SR_CHSIDE)) ? 1UL : 0UL); +} + +/** + * @brief Clear overrun error flag + * @rmtoll SR OVR LL_I2S_ClearFlag_OVR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_ClearFlag_OVR(SPI_TypeDef *SPIx) +{ + LL_SPI_ClearFlag_OVR(SPIx); +} + +/** + * @brief Clear underrun error flag + * @rmtoll SR UDR LL_I2S_ClearFlag_UDR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_ClearFlag_UDR(const SPI_TypeDef *SPIx) +{ + __IO uint32_t tmpreg; + tmpreg = SPIx->SR; + (void)tmpreg; +} + +/** + * @brief Clear frame format error flag + * @rmtoll SR FRE LL_I2S_ClearFlag_FRE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_ClearFlag_FRE(const SPI_TypeDef *SPIx) +{ + LL_SPI_ClearFlag_FRE(SPIx); +} + +/** + * @} + */ + +/** @defgroup I2S_LL_EF_IT Interrupt Management + * @{ + */ + +/** + * @brief Enable error IT + * @note This bit controls the generation of an interrupt when an error condition occurs (OVR, UDR and FRE in I2S mode). + * @rmtoll CR2 ERRIE LL_I2S_EnableIT_ERR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableIT_ERR(SPI_TypeDef *SPIx) +{ + LL_SPI_EnableIT_ERR(SPIx); +} + +/** + * @brief Enable Rx buffer not empty IT + * @rmtoll CR2 RXNEIE LL_I2S_EnableIT_RXNE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableIT_RXNE(SPI_TypeDef *SPIx) +{ + LL_SPI_EnableIT_RXNE(SPIx); +} + +/** + * @brief Enable Tx buffer empty IT + * @rmtoll CR2 TXEIE LL_I2S_EnableIT_TXE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableIT_TXE(SPI_TypeDef *SPIx) +{ + LL_SPI_EnableIT_TXE(SPIx); +} + +/** + * @brief Disable error IT + * @note This bit controls the generation of an interrupt when an error condition occurs (OVR, UDR and FRE in I2S mode). + * @rmtoll CR2 ERRIE LL_I2S_DisableIT_ERR + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableIT_ERR(SPI_TypeDef *SPIx) +{ + LL_SPI_DisableIT_ERR(SPIx); +} + +/** + * @brief Disable Rx buffer not empty IT + * @rmtoll CR2 RXNEIE LL_I2S_DisableIT_RXNE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableIT_RXNE(SPI_TypeDef *SPIx) +{ + LL_SPI_DisableIT_RXNE(SPIx); +} + +/** + * @brief Disable Tx buffer empty IT + * @rmtoll CR2 TXEIE LL_I2S_DisableIT_TXE + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableIT_TXE(SPI_TypeDef *SPIx) +{ + LL_SPI_DisableIT_TXE(SPIx); +} + +/** + * @brief Check if ERR IT is enabled + * @rmtoll CR2 ERRIE LL_I2S_IsEnabledIT_ERR + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_ERR(const SPI_TypeDef *SPIx) +{ + return LL_SPI_IsEnabledIT_ERR(SPIx); +} + +/** + * @brief Check if RXNE IT is enabled + * @rmtoll CR2 RXNEIE LL_I2S_IsEnabledIT_RXNE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_RXNE(const SPI_TypeDef *SPIx) +{ + return LL_SPI_IsEnabledIT_RXNE(SPIx); +} + +/** + * @brief Check if TXE IT is enabled + * @rmtoll CR2 TXEIE LL_I2S_IsEnabledIT_TXE + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_TXE(const SPI_TypeDef *SPIx) +{ + return LL_SPI_IsEnabledIT_TXE(SPIx); +} + +/** + * @} + */ + +/** @defgroup I2S_LL_EF_DMA DMA Management + * @{ + */ + +/** + * @brief Enable DMA Rx + * @rmtoll CR2 RXDMAEN LL_I2S_EnableDMAReq_RX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableDMAReq_RX(SPI_TypeDef *SPIx) +{ + LL_SPI_EnableDMAReq_RX(SPIx); +} + +/** + * @brief Disable DMA Rx + * @rmtoll CR2 RXDMAEN LL_I2S_DisableDMAReq_RX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableDMAReq_RX(SPI_TypeDef *SPIx) +{ + LL_SPI_DisableDMAReq_RX(SPIx); +} + +/** + * @brief Check if DMA Rx is enabled + * @rmtoll CR2 RXDMAEN LL_I2S_IsEnabledDMAReq_RX + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledDMAReq_RX(const SPI_TypeDef *SPIx) +{ + return LL_SPI_IsEnabledDMAReq_RX(SPIx); +} + +/** + * @brief Enable DMA Tx + * @rmtoll CR2 TXDMAEN LL_I2S_EnableDMAReq_TX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_EnableDMAReq_TX(SPI_TypeDef *SPIx) +{ + LL_SPI_EnableDMAReq_TX(SPIx); +} + +/** + * @brief Disable DMA Tx + * @rmtoll CR2 TXDMAEN LL_I2S_DisableDMAReq_TX + * @param SPIx SPI Instance + * @retval None + */ +__STATIC_INLINE void LL_I2S_DisableDMAReq_TX(SPI_TypeDef *SPIx) +{ + LL_SPI_DisableDMAReq_TX(SPIx); +} + +/** + * @brief Check if DMA Tx is enabled + * @rmtoll CR2 TXDMAEN LL_I2S_IsEnabledDMAReq_TX + * @param SPIx SPI Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_I2S_IsEnabledDMAReq_TX(const SPI_TypeDef *SPIx) +{ + return LL_SPI_IsEnabledDMAReq_TX(SPIx); +} + +/** + * @} + */ + +/** @defgroup I2S_LL_EF_DATA DATA Management + * @{ + */ + +/** + * @brief Read 16-Bits in data register + * @rmtoll DR DR LL_I2S_ReceiveData16 + * @param SPIx SPI Instance + * @retval RxData Value between Min_Data=0x0000 and Max_Data=0xFFFF + */ +__STATIC_INLINE uint16_t LL_I2S_ReceiveData16(SPI_TypeDef *SPIx) +{ + return LL_SPI_ReceiveData16(SPIx); +} + +/** + * @brief Write 16-Bits in data register + * @rmtoll DR DR LL_I2S_TransmitData16 + * @param SPIx SPI Instance + * @param TxData Value between Min_Data=0x0000 and Max_Data=0xFFFF + * @retval None + */ +__STATIC_INLINE void LL_I2S_TransmitData16(SPI_TypeDef *SPIx, uint16_t TxData) +{ + LL_SPI_TransmitData16(SPIx, TxData); +} + +/** + * @} + */ + +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup I2S_LL_EF_Init Initialization and de-initialization functions + * @{ + */ + +ErrorStatus LL_I2S_DeInit(const SPI_TypeDef *SPIx); +ErrorStatus LL_I2S_Init(SPI_TypeDef *SPIx,const LL_I2S_InitTypeDef *I2S_InitStruct); +void LL_I2S_StructInit(LL_I2S_InitTypeDef *I2S_InitStruct); +void LL_I2S_ConfigPrescaler(SPI_TypeDef *SPIx, uint32_t PrescalerLinear, uint32_t PrescalerParity); + +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ + +/** + * @} + */ + +/** + * @} + */ +#endif /* SPI_I2S_SUPPORT */ + +#endif /* defined (SPI1) || defined (SPI2) || defined (SPI3) */ + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* STM32G0xx_LL_SPI_H */ + diff --git a/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_spi.c b/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_spi.c new file mode 100644 index 0000000..68c8d4e --- /dev/null +++ b/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_spi.c @@ -0,0 +1,4471 @@ +/** + ****************************************************************************** + * @file stm32g0xx_hal_spi.c + * @author MCD Application Team + * @brief SPI HAL module driver. + * This file provides firmware functions to manage the following + * functionalities of the Serial Peripheral Interface (SPI) peripheral: + * + Initialization and de-initialization functions + * + IO operation functions + * + Peripheral Control functions + * + Peripheral State functions + ****************************************************************************** + * @attention + * + * Copyright (c) 2018 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + @verbatim + ============================================================================== + ##### How to use this driver ##### + ============================================================================== + [..] + The SPI HAL driver can be used as follows: + + (#) Declare a SPI_HandleTypeDef handle structure, for example: + SPI_HandleTypeDef hspi; + + (#)Initialize the SPI low level resources by implementing the HAL_SPI_MspInit() API: + (##) Enable the SPIx interface clock + (##) SPI pins configuration + (+++) Enable the clock for the SPI GPIOs + (+++) Configure these SPI pins as alternate function push-pull + (##) NVIC configuration if you need to use interrupt process + (+++) Configure the SPIx interrupt priority + (+++) Enable the NVIC SPI IRQ handle + (##) DMA Configuration if you need to use DMA process + (+++) Declare a DMA_HandleTypeDef handle structure for the transmit or receive Stream/Channel + (+++) Enable the DMAx clock + (+++) Configure the DMA handle parameters + (+++) Configure the DMA Tx or Rx Stream/Channel + (+++) Associate the initialized hdma_tx(or _rx) handle to the hspi DMA Tx or Rx handle + (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx + or Rx Stream/Channel + + (#) Program the Mode, BidirectionalMode , Data size, Baudrate Prescaler, NSS + management, Clock polarity and phase, FirstBit and CRC configuration in the hspi Init structure. + + (#) Initialize the SPI registers by calling the HAL_SPI_Init() API: + (++) This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc) + by calling the customized HAL_SPI_MspInit() API. + [..] + Circular mode restriction: + (#) The DMA circular mode cannot be used when the SPI is configured in these modes: + (##) Master 2Lines RxOnly + (##) Master 1Line Rx + (#) The CRC feature is not managed when the DMA circular mode is enabled + (#) When the SPI DMA Pause/Stop features are used, we must use the following APIs + the HAL_SPI_DMAPause()/ HAL_SPI_DMAStop() only under the SPI callbacks + [..] + Master Receive mode restriction: + (#) In Master unidirectional receive-only mode (MSTR =1, BIDIMODE=0, RXONLY=1) or + bidirectional receive mode (MSTR=1, BIDIMODE=1, BIDIOE=0), to ensure that the SPI + does not initiate a new transfer the following procedure has to be respected: + (##) HAL_SPI_DeInit() + (##) HAL_SPI_Init() + [..] + Data buffer address alignment restriction: + (#) There is no support for unaligned accesses on the Cortex-M0 processor. + If the user wants to transfer in 16Bit data mode, it shall ensure that 16-bit aligned address is used for: + (##) pData parameter in HAL_SPI_Transmit(), HAL_SPI_Transmit_IT(), HAL_SPI_Receive() and HAL_SPI_Receive_IT() + (##) pTxData and pRxData parameters in HAL_SPI_TransmitReceive() and HAL_SPI_TransmitReceive_IT() + (#) There is no such restriction when going through DMA by using HAL_SPI_Transmit_DMA(), HAL_SPI_Receive_DMA() + and HAL_SPI_TransmitReceive_DMA(). + [..] + Callback registration: + + (#) The compilation flag USE_HAL_SPI_REGISTER_CALLBACKS when set to 1U + allows the user to configure dynamically the driver callbacks. + Use Functions HAL_SPI_RegisterCallback() to register an interrupt callback. + + Function HAL_SPI_RegisterCallback() allows to register following callbacks: + (++) TxCpltCallback : SPI Tx Completed callback + (++) RxCpltCallback : SPI Rx Completed callback + (++) TxRxCpltCallback : SPI TxRx Completed callback + (++) TxHalfCpltCallback : SPI Tx Half Completed callback + (++) RxHalfCpltCallback : SPI Rx Half Completed callback + (++) TxRxHalfCpltCallback : SPI TxRx Half Completed callback + (++) ErrorCallback : SPI Error callback + (++) AbortCpltCallback : SPI Abort callback + (++) MspInitCallback : SPI Msp Init callback + (++) MspDeInitCallback : SPI Msp DeInit callback + This function takes as parameters the HAL peripheral handle, the Callback ID + and a pointer to the user callback function. + + + (#) Use function HAL_SPI_UnRegisterCallback to reset a callback to the default + weak function. + HAL_SPI_UnRegisterCallback takes as parameters the HAL peripheral handle, + and the Callback ID. + This function allows to reset following callbacks: + (++) TxCpltCallback : SPI Tx Completed callback + (++) RxCpltCallback : SPI Rx Completed callback + (++) TxRxCpltCallback : SPI TxRx Completed callback + (++) TxHalfCpltCallback : SPI Tx Half Completed callback + (++) RxHalfCpltCallback : SPI Rx Half Completed callback + (++) TxRxHalfCpltCallback : SPI TxRx Half Completed callback + (++) ErrorCallback : SPI Error callback + (++) AbortCpltCallback : SPI Abort callback + (++) MspInitCallback : SPI Msp Init callback + (++) MspDeInitCallback : SPI Msp DeInit callback + + [..] + By default, after the HAL_SPI_Init() and when the state is HAL_SPI_STATE_RESET + all callbacks are set to the corresponding weak functions: + examples HAL_SPI_MasterTxCpltCallback(), HAL_SPI_MasterRxCpltCallback(). + Exception done for MspInit and MspDeInit functions that are + reset to the legacy weak functions in the HAL_SPI_Init()/ HAL_SPI_DeInit() only when + these callbacks are null (not registered beforehand). + If MspInit or MspDeInit are not null, the HAL_SPI_Init()/ HAL_SPI_DeInit() + keep and use the user MspInit/MspDeInit callbacks (registered beforehand) whatever the state. + + [..] + Callbacks can be registered/unregistered in HAL_SPI_STATE_READY state only. + Exception done MspInit/MspDeInit functions that can be registered/unregistered + in HAL_SPI_STATE_READY or HAL_SPI_STATE_RESET state, + thus registered (user) MspInit/DeInit callbacks can be used during the Init/DeInit. + Then, the user first registers the MspInit/MspDeInit user callbacks + using HAL_SPI_RegisterCallback() before calling HAL_SPI_DeInit() + or HAL_SPI_Init() function. + + [..] + When the compilation define USE_HAL_PPP_REGISTER_CALLBACKS is set to 0 or + not defined, the callback registering feature is not available + and weak (surcharged) callbacks are used. + + [..] + Using the HAL it is not possible to reach all supported SPI frequency with the different SPI Modes, + the following table resume the max SPI frequency reached with data size 8bits/16bits, + according to frequency of the APBx Peripheral Clock (fPCLK) used by the SPI instance. + + @endverbatim + + Additional table : + + DataSize = SPI_DATASIZE_8BIT: + +----------------------------------------------------------------------------------------------+ + | | | 2Lines Fullduplex | 2Lines RxOnly | 1Line | + | Process | Transfer mode |---------------------|----------------------|----------------------| + | | | Master | Slave | Master | Slave | Master | Slave | + |==============================================================================================| + | T | Polling | Fpclk/4 | Fpclk/8 | NA | NA | NA | NA | + | X |----------------|----------|----------|-----------|----------|-----------|----------| + | / | Interrupt | Fpclk/4 | Fpclk/16 | NA | NA | NA | NA | + | R |----------------|----------|----------|-----------|----------|-----------|----------| + | X | DMA | Fpclk/2 | Fpclk/2 | NA | NA | NA | NA | + |=========|================|==========|==========|===========|==========|===========|==========| + | | Polling | Fpclk/4 | Fpclk/8 | Fpclk/16 | Fpclk/8 | Fpclk/8 | Fpclk/8 | + | |----------------|----------|----------|-----------|----------|-----------|----------| + | R | Interrupt | Fpclk/8 | Fpclk/16 | Fpclk/8 | Fpclk/8 | Fpclk/8 | Fpclk/4 | + | X |----------------|----------|----------|-----------|----------|-----------|----------| + | | DMA | Fpclk/4 | Fpclk/2 | Fpclk/2 | Fpclk/16 | Fpclk/2 | Fpclk/16 | + |=========|================|==========|==========|===========|==========|===========|==========| + | | Polling | Fpclk/8 | Fpclk/2 | NA | NA | Fpclk/8 | Fpclk/8 | + | |----------------|----------|----------|-----------|----------|-----------|----------| + | T | Interrupt | Fpclk/2 | Fpclk/4 | NA | NA | Fpclk/16 | Fpclk/8 | + | X |----------------|----------|----------|-----------|----------|-----------|----------| + | | DMA | Fpclk/2 | Fpclk/2 | NA | NA | Fpclk/8 | Fpclk/16 | + +----------------------------------------------------------------------------------------------+ + + DataSize = SPI_DATASIZE_16BIT: + +----------------------------------------------------------------------------------------------+ + | | | 2Lines Fullduplex | 2Lines RxOnly | 1Line | + | Process | Transfer mode |---------------------|----------------------|----------------------| + | | | Master | Slave | Master | Slave | Master | Slave | + |==============================================================================================| + | T | Polling | Fpclk/4 | Fpclk/8 | NA | NA | NA | NA | + | X |----------------|----------|----------|-----------|----------|-----------|----------| + | / | Interrupt | Fpclk/4 | Fpclk/16 | NA | NA | NA | NA | + | R |----------------|----------|----------|-----------|----------|-----------|----------| + | X | DMA | Fpclk/2 | Fpclk/2 | NA | NA | NA | NA | + |=========|================|==========|==========|===========|==========|===========|==========| + | | Polling | Fpclk/4 | Fpclk/8 | Fpclk/16 | Fpclk/8 | Fpclk/8 | Fpclk/8 | + | |----------------|----------|----------|-----------|----------|-----------|----------| + | R | Interrupt | Fpclk/8 | Fpclk/16 | Fpclk/8 | Fpclk/8 | Fpclk/8 | Fpclk/4 | + | X |----------------|----------|----------|-----------|----------|-----------|----------| + | | DMA | Fpclk/4 | Fpclk/2 | Fpclk/2 | Fpclk/16 | Fpclk/2 | Fpclk/16 | + |=========|================|==========|==========|===========|==========|===========|==========| + | | Polling | Fpclk/8 | Fpclk/2 | NA | NA | Fpclk/8 | Fpclk/8 | + | |----------------|----------|----------|-----------|----------|-----------|----------| + | T | Interrupt | Fpclk/2 | Fpclk/4 | NA | NA | Fpclk/16 | Fpclk/8 | + | X |----------------|----------|----------|-----------|----------|-----------|----------| + | | DMA | Fpclk/2 | Fpclk/2 | NA | NA | Fpclk/8 | Fpclk/16 | + +----------------------------------------------------------------------------------------------+ + @note The max SPI frequency depend on SPI data size (4bits, 5bits,..., 8bits,...15bits, 16bits), + SPI mode(2 Lines fullduplex, 2 lines RxOnly, 1 line TX/RX) and Process mode (Polling, IT, DMA). + @note + (#) TX/RX processes are HAL_SPI_TransmitReceive(), HAL_SPI_TransmitReceive_IT() and + HAL_SPI_TransmitReceive_DMA() + (#) RX processes are HAL_SPI_Receive(), HAL_SPI_Receive_IT() and HAL_SPI_Receive_DMA() + (#) TX processes are HAL_SPI_Transmit(), HAL_SPI_Transmit_IT() and HAL_SPI_Transmit_DMA() + + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32g0xx_hal.h" + +/** @addtogroup STM32G0xx_HAL_Driver + * @{ + */ + +/** @defgroup SPI SPI + * @brief SPI HAL module driver + * @{ + */ +#ifdef HAL_SPI_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private defines -----------------------------------------------------------*/ +/** @defgroup SPI_Private_Constants SPI Private Constants + * @{ + */ +#define SPI_DEFAULT_TIMEOUT 100U +/** + * @} + */ + +/* Private macros ------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/** @defgroup SPI_Private_Functions SPI Private Functions + * @{ + */ +static void SPI_DMATransmitCplt(DMA_HandleTypeDef *hdma); +static void SPI_DMAReceiveCplt(DMA_HandleTypeDef *hdma); +static void SPI_DMATransmitReceiveCplt(DMA_HandleTypeDef *hdma); +static void SPI_DMAHalfTransmitCplt(DMA_HandleTypeDef *hdma); +static void SPI_DMAHalfReceiveCplt(DMA_HandleTypeDef *hdma); +static void SPI_DMAHalfTransmitReceiveCplt(DMA_HandleTypeDef *hdma); +static void SPI_DMAError(DMA_HandleTypeDef *hdma); +static void SPI_DMAAbortOnError(DMA_HandleTypeDef *hdma); +static void SPI_DMATxAbortCallback(DMA_HandleTypeDef *hdma); +static void SPI_DMARxAbortCallback(DMA_HandleTypeDef *hdma); +static HAL_StatusTypeDef SPI_WaitFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, FlagStatus State, + uint32_t Timeout, uint32_t Tickstart); +static HAL_StatusTypeDef SPI_WaitFifoStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Fifo, uint32_t State, + uint32_t Timeout, uint32_t Tickstart); +static void SPI_TxISR_8BIT(struct __SPI_HandleTypeDef *hspi); +static void SPI_TxISR_16BIT(struct __SPI_HandleTypeDef *hspi); +static void SPI_RxISR_8BIT(struct __SPI_HandleTypeDef *hspi); +static void SPI_RxISR_16BIT(struct __SPI_HandleTypeDef *hspi); +static void SPI_2linesRxISR_8BIT(struct __SPI_HandleTypeDef *hspi); +static void SPI_2linesTxISR_8BIT(struct __SPI_HandleTypeDef *hspi); +static void SPI_2linesTxISR_16BIT(struct __SPI_HandleTypeDef *hspi); +static void SPI_2linesRxISR_16BIT(struct __SPI_HandleTypeDef *hspi); +#if (USE_SPI_CRC != 0U) +static void SPI_RxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi); +static void SPI_RxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi); +static void SPI_2linesRxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi); +static void SPI_2linesRxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi); +#endif /* USE_SPI_CRC */ +static void SPI_AbortRx_ISR(SPI_HandleTypeDef *hspi); +static void SPI_AbortTx_ISR(SPI_HandleTypeDef *hspi); +static void SPI_CloseRxTx_ISR(SPI_HandleTypeDef *hspi); +static void SPI_CloseRx_ISR(SPI_HandleTypeDef *hspi); +static void SPI_CloseTx_ISR(SPI_HandleTypeDef *hspi); +static HAL_StatusTypeDef SPI_EndRxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart); +static HAL_StatusTypeDef SPI_EndRxTxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart); +/** + * @} + */ + +/* Exported functions --------------------------------------------------------*/ +/** @defgroup SPI_Exported_Functions SPI Exported Functions + * @{ + */ + +/** @defgroup SPI_Exported_Functions_Group1 Initialization and de-initialization functions + * @brief Initialization and Configuration functions + * +@verbatim + =============================================================================== + ##### Initialization and de-initialization functions ##### + =============================================================================== + [..] This subsection provides a set of functions allowing to initialize and + de-initialize the SPIx peripheral: + + (+) User must implement HAL_SPI_MspInit() function in which he configures + all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ). + + (+) Call the function HAL_SPI_Init() to configure the selected device with + the selected configuration: + (++) Mode + (++) Direction + (++) Data Size + (++) Clock Polarity and Phase + (++) NSS Management + (++) BaudRate Prescaler + (++) FirstBit + (++) TIMode + (++) CRC Calculation + (++) CRC Polynomial if CRC enabled + (++) CRC Length, used only with Data8 and Data16 + (++) FIFO reception threshold + + (+) Call the function HAL_SPI_DeInit() to restore the default configuration + of the selected SPIx peripheral. + +@endverbatim + * @{ + */ + +/** + * @brief Initialize the SPI according to the specified parameters + * in the SPI_InitTypeDef and initialize the associated handle. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_Init(SPI_HandleTypeDef *hspi) +{ + uint32_t frxth; + + /* Check the SPI handle allocation */ + if (hspi == NULL) + { + return HAL_ERROR; + } + + /* Check the parameters */ + assert_param(IS_SPI_ALL_INSTANCE(hspi->Instance)); + assert_param(IS_SPI_MODE(hspi->Init.Mode)); + assert_param(IS_SPI_DIRECTION(hspi->Init.Direction)); + assert_param(IS_SPI_DATASIZE(hspi->Init.DataSize)); + assert_param(IS_SPI_NSS(hspi->Init.NSS)); + assert_param(IS_SPI_NSSP(hspi->Init.NSSPMode)); + assert_param(IS_SPI_BAUDRATE_PRESCALER(hspi->Init.BaudRatePrescaler)); + assert_param(IS_SPI_FIRST_BIT(hspi->Init.FirstBit)); + assert_param(IS_SPI_TIMODE(hspi->Init.TIMode)); + if (hspi->Init.TIMode == SPI_TIMODE_DISABLE) + { + assert_param(IS_SPI_CPOL(hspi->Init.CLKPolarity)); + assert_param(IS_SPI_CPHA(hspi->Init.CLKPhase)); + + if (hspi->Init.Mode == SPI_MODE_MASTER) + { + assert_param(IS_SPI_BAUDRATE_PRESCALER(hspi->Init.BaudRatePrescaler)); + } + else + { + /* Baudrate prescaler not use in Motoraola Slave mode. force to default value */ + hspi->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2; + } + } + else + { + assert_param(IS_SPI_BAUDRATE_PRESCALER(hspi->Init.BaudRatePrescaler)); + + /* Force polarity and phase to TI protocaol requirements */ + hspi->Init.CLKPolarity = SPI_POLARITY_LOW; + hspi->Init.CLKPhase = SPI_PHASE_1EDGE; + } +#if (USE_SPI_CRC != 0U) + assert_param(IS_SPI_CRC_CALCULATION(hspi->Init.CRCCalculation)); + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + assert_param(IS_SPI_CRC_POLYNOMIAL(hspi->Init.CRCPolynomial)); + assert_param(IS_SPI_CRC_LENGTH(hspi->Init.CRCLength)); + } +#else + hspi->Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE; +#endif /* USE_SPI_CRC */ + + if (hspi->State == HAL_SPI_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hspi->Lock = HAL_UNLOCKED; + +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + /* Init the SPI Callback settings */ + hspi->TxCpltCallback = HAL_SPI_TxCpltCallback; /* Legacy weak TxCpltCallback */ + hspi->RxCpltCallback = HAL_SPI_RxCpltCallback; /* Legacy weak RxCpltCallback */ + hspi->TxRxCpltCallback = HAL_SPI_TxRxCpltCallback; /* Legacy weak TxRxCpltCallback */ + hspi->TxHalfCpltCallback = HAL_SPI_TxHalfCpltCallback; /* Legacy weak TxHalfCpltCallback */ + hspi->RxHalfCpltCallback = HAL_SPI_RxHalfCpltCallback; /* Legacy weak RxHalfCpltCallback */ + hspi->TxRxHalfCpltCallback = HAL_SPI_TxRxHalfCpltCallback; /* Legacy weak TxRxHalfCpltCallback */ + hspi->ErrorCallback = HAL_SPI_ErrorCallback; /* Legacy weak ErrorCallback */ + hspi->AbortCpltCallback = HAL_SPI_AbortCpltCallback; /* Legacy weak AbortCpltCallback */ + + if (hspi->MspInitCallback == NULL) + { + hspi->MspInitCallback = HAL_SPI_MspInit; /* Legacy weak MspInit */ + } + + /* Init the low level hardware : GPIO, CLOCK, NVIC... */ + hspi->MspInitCallback(hspi); +#else + /* Init the low level hardware : GPIO, CLOCK, NVIC... */ + HAL_SPI_MspInit(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + } + + hspi->State = HAL_SPI_STATE_BUSY; + + /* Disable the selected SPI peripheral */ + __HAL_SPI_DISABLE(hspi); + + /* Align by default the rs fifo threshold on the data size */ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + frxth = SPI_RXFIFO_THRESHOLD_HF; + } + else + { + frxth = SPI_RXFIFO_THRESHOLD_QF; + } + + /* CRC calculation is valid only for 16Bit and 8 Bit */ + if ((hspi->Init.DataSize != SPI_DATASIZE_16BIT) && (hspi->Init.DataSize != SPI_DATASIZE_8BIT)) + { + /* CRC must be disabled */ + hspi->Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE; + } + + /*----------------------- SPIx CR1 & CR2 Configuration ---------------------*/ + /* Configure : SPI Mode, Communication Mode, Clock polarity and phase, NSS management, + Communication speed, First bit and CRC calculation state */ + WRITE_REG(hspi->Instance->CR1, ((hspi->Init.Mode & (SPI_CR1_MSTR | SPI_CR1_SSI)) | + (hspi->Init.Direction & (SPI_CR1_RXONLY | SPI_CR1_BIDIMODE)) | + (hspi->Init.CLKPolarity & SPI_CR1_CPOL) | + (hspi->Init.CLKPhase & SPI_CR1_CPHA) | + (hspi->Init.NSS & SPI_CR1_SSM) | + (hspi->Init.BaudRatePrescaler & SPI_CR1_BR_Msk) | + (hspi->Init.FirstBit & SPI_CR1_LSBFIRST) | + (hspi->Init.CRCCalculation & SPI_CR1_CRCEN))); +#if (USE_SPI_CRC != 0U) + /*---------------------------- SPIx CRCL Configuration -------------------*/ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + /* Align the CRC Length on the data size */ + if (hspi->Init.CRCLength == SPI_CRC_LENGTH_DATASIZE) + { + /* CRC Length aligned on the data size : value set by default */ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + hspi->Init.CRCLength = SPI_CRC_LENGTH_16BIT; + } + else + { + hspi->Init.CRCLength = SPI_CRC_LENGTH_8BIT; + } + } + + /* Configure : CRC Length */ + if (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCL); + } + } +#endif /* USE_SPI_CRC */ + + /* Configure : NSS management, TI Mode, NSS Pulse, Data size and Rx Fifo threshold */ + WRITE_REG(hspi->Instance->CR2, (((hspi->Init.NSS >> 16U) & SPI_CR2_SSOE) | + (hspi->Init.TIMode & SPI_CR2_FRF) | + (hspi->Init.NSSPMode & SPI_CR2_NSSP) | + (hspi->Init.DataSize & SPI_CR2_DS_Msk) | + (frxth & SPI_CR2_FRXTH))); + +#if (USE_SPI_CRC != 0U) + /*---------------------------- SPIx CRCPOLY Configuration ------------------*/ + /* Configure : CRC Polynomial */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + WRITE_REG(hspi->Instance->CRCPR, (hspi->Init.CRCPolynomial & SPI_CRCPR_CRCPOLY_Msk)); + } +#endif /* USE_SPI_CRC */ + +#if defined(SPI_I2SCFGR_I2SMOD) + /* Activate the SPI mode (Make sure that I2SMOD bit in I2SCFGR register is reset) */ + CLEAR_BIT(hspi->Instance->I2SCFGR, SPI_I2SCFGR_I2SMOD); +#endif /* SPI_I2SCFGR_I2SMOD */ + + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + hspi->State = HAL_SPI_STATE_READY; + + return HAL_OK; +} + +/** + * @brief De-Initialize the SPI peripheral. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_DeInit(SPI_HandleTypeDef *hspi) +{ + /* Check the SPI handle allocation */ + if (hspi == NULL) + { + return HAL_ERROR; + } + + /* Check SPI Instance parameter */ + assert_param(IS_SPI_ALL_INSTANCE(hspi->Instance)); + + hspi->State = HAL_SPI_STATE_BUSY; + + /* Disable the SPI Peripheral Clock */ + __HAL_SPI_DISABLE(hspi); + +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + if (hspi->MspDeInitCallback == NULL) + { + hspi->MspDeInitCallback = HAL_SPI_MspDeInit; /* Legacy weak MspDeInit */ + } + + /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */ + hspi->MspDeInitCallback(hspi); +#else + /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */ + HAL_SPI_MspDeInit(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + hspi->State = HAL_SPI_STATE_RESET; + + /* Release Lock */ + __HAL_UNLOCK(hspi); + + return HAL_OK; +} + +/** + * @brief Initialize the SPI MSP. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +__weak void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspi); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SPI_MspInit should be implemented in the user file + */ +} + +/** + * @brief De-Initialize the SPI MSP. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +__weak void HAL_SPI_MspDeInit(SPI_HandleTypeDef *hspi) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspi); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SPI_MspDeInit should be implemented in the user file + */ +} + +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) +/** + * @brief Register a User SPI Callback + * To be used instead of the weak predefined callback + * @param hspi Pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for the specified SPI. + * @param CallbackID ID of the callback to be registered + * @param pCallback pointer to the Callback function + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_RegisterCallback(SPI_HandleTypeDef *hspi, HAL_SPI_CallbackIDTypeDef CallbackID, + pSPI_CallbackTypeDef pCallback) +{ + HAL_StatusTypeDef status = HAL_OK; + + if (pCallback == NULL) + { + /* Update the error code */ + hspi->ErrorCode |= HAL_SPI_ERROR_INVALID_CALLBACK; + + return HAL_ERROR; + } + /* Process locked */ + __HAL_LOCK(hspi); + + if (HAL_SPI_STATE_READY == hspi->State) + { + switch (CallbackID) + { + case HAL_SPI_TX_COMPLETE_CB_ID : + hspi->TxCpltCallback = pCallback; + break; + + case HAL_SPI_RX_COMPLETE_CB_ID : + hspi->RxCpltCallback = pCallback; + break; + + case HAL_SPI_TX_RX_COMPLETE_CB_ID : + hspi->TxRxCpltCallback = pCallback; + break; + + case HAL_SPI_TX_HALF_COMPLETE_CB_ID : + hspi->TxHalfCpltCallback = pCallback; + break; + + case HAL_SPI_RX_HALF_COMPLETE_CB_ID : + hspi->RxHalfCpltCallback = pCallback; + break; + + case HAL_SPI_TX_RX_HALF_COMPLETE_CB_ID : + hspi->TxRxHalfCpltCallback = pCallback; + break; + + case HAL_SPI_ERROR_CB_ID : + hspi->ErrorCallback = pCallback; + break; + + case HAL_SPI_ABORT_CB_ID : + hspi->AbortCpltCallback = pCallback; + break; + + case HAL_SPI_MSPINIT_CB_ID : + hspi->MspInitCallback = pCallback; + break; + + case HAL_SPI_MSPDEINIT_CB_ID : + hspi->MspDeInitCallback = pCallback; + break; + + default : + /* Update the error code */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_INVALID_CALLBACK); + + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else if (HAL_SPI_STATE_RESET == hspi->State) + { + switch (CallbackID) + { + case HAL_SPI_MSPINIT_CB_ID : + hspi->MspInitCallback = pCallback; + break; + + case HAL_SPI_MSPDEINIT_CB_ID : + hspi->MspDeInitCallback = pCallback; + break; + + default : + /* Update the error code */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_INVALID_CALLBACK); + + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else + { + /* Update the error code */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_INVALID_CALLBACK); + + /* Return error status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(hspi); + return status; +} + +/** + * @brief Unregister an SPI Callback + * SPI callback is redirected to the weak predefined callback + * @param hspi Pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for the specified SPI. + * @param CallbackID ID of the callback to be unregistered + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_UnRegisterCallback(SPI_HandleTypeDef *hspi, HAL_SPI_CallbackIDTypeDef CallbackID) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Process locked */ + __HAL_LOCK(hspi); + + if (HAL_SPI_STATE_READY == hspi->State) + { + switch (CallbackID) + { + case HAL_SPI_TX_COMPLETE_CB_ID : + hspi->TxCpltCallback = HAL_SPI_TxCpltCallback; /* Legacy weak TxCpltCallback */ + break; + + case HAL_SPI_RX_COMPLETE_CB_ID : + hspi->RxCpltCallback = HAL_SPI_RxCpltCallback; /* Legacy weak RxCpltCallback */ + break; + + case HAL_SPI_TX_RX_COMPLETE_CB_ID : + hspi->TxRxCpltCallback = HAL_SPI_TxRxCpltCallback; /* Legacy weak TxRxCpltCallback */ + break; + + case HAL_SPI_TX_HALF_COMPLETE_CB_ID : + hspi->TxHalfCpltCallback = HAL_SPI_TxHalfCpltCallback; /* Legacy weak TxHalfCpltCallback */ + break; + + case HAL_SPI_RX_HALF_COMPLETE_CB_ID : + hspi->RxHalfCpltCallback = HAL_SPI_RxHalfCpltCallback; /* Legacy weak RxHalfCpltCallback */ + break; + + case HAL_SPI_TX_RX_HALF_COMPLETE_CB_ID : + hspi->TxRxHalfCpltCallback = HAL_SPI_TxRxHalfCpltCallback; /* Legacy weak TxRxHalfCpltCallback */ + break; + + case HAL_SPI_ERROR_CB_ID : + hspi->ErrorCallback = HAL_SPI_ErrorCallback; /* Legacy weak ErrorCallback */ + break; + + case HAL_SPI_ABORT_CB_ID : + hspi->AbortCpltCallback = HAL_SPI_AbortCpltCallback; /* Legacy weak AbortCpltCallback */ + break; + + case HAL_SPI_MSPINIT_CB_ID : + hspi->MspInitCallback = HAL_SPI_MspInit; /* Legacy weak MspInit */ + break; + + case HAL_SPI_MSPDEINIT_CB_ID : + hspi->MspDeInitCallback = HAL_SPI_MspDeInit; /* Legacy weak MspDeInit */ + break; + + default : + /* Update the error code */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_INVALID_CALLBACK); + + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else if (HAL_SPI_STATE_RESET == hspi->State) + { + switch (CallbackID) + { + case HAL_SPI_MSPINIT_CB_ID : + hspi->MspInitCallback = HAL_SPI_MspInit; /* Legacy weak MspInit */ + break; + + case HAL_SPI_MSPDEINIT_CB_ID : + hspi->MspDeInitCallback = HAL_SPI_MspDeInit; /* Legacy weak MspDeInit */ + break; + + default : + /* Update the error code */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_INVALID_CALLBACK); + + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else + { + /* Update the error code */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_INVALID_CALLBACK); + + /* Return error status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(hspi); + return status; +} +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +/** + * @} + */ + +/** @defgroup SPI_Exported_Functions_Group2 IO operation functions + * @brief Data transfers functions + * +@verbatim + ============================================================================== + ##### IO operation functions ##### + =============================================================================== + [..] + This subsection provides a set of functions allowing to manage the SPI + data transfers. + + [..] The SPI supports master and slave mode : + + (#) There are two modes of transfer: + (++) Blocking mode: The communication is performed in polling mode. + The HAL status of all data processing is returned by the same function + after finishing transfer. + (++) No-Blocking mode: The communication is performed using Interrupts + or DMA, These APIs return the HAL status. + The end of the data processing will be indicated through the + dedicated SPI IRQ when using Interrupt mode or the DMA IRQ when + using DMA mode. + The HAL_SPI_TxCpltCallback(), HAL_SPI_RxCpltCallback() and HAL_SPI_TxRxCpltCallback() user callbacks + will be executed respectively at the end of the transmit or Receive process + The HAL_SPI_ErrorCallback()user callback will be executed when a communication error is detected + + (#) APIs provided for these 2 transfer modes (Blocking mode or Non blocking mode using either Interrupt or DMA) + exist for 1Line (simplex) and 2Lines (full duplex) modes. + +@endverbatim + * @{ + */ + +/** + * @brief Transmit an amount of data in blocking mode. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param pData pointer to data buffer (u8 or u16 data elements) + * @param Size amount of data elements (u8 or u16) to be sent + * @param Timeout Timeout duration in ms + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_Transmit(SPI_HandleTypeDef *hspi, const uint8_t *pData, uint16_t Size, uint32_t Timeout) +{ + uint32_t tickstart; + uint16_t initial_TxXferCount; + + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + /* in this case, 16-bit access is performed on Data + So, check Data is 16-bit aligned address */ + assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pData)); + } + + /* Check Direction parameter */ + assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction)); + + /* Init tickstart for timeout management*/ + tickstart = HAL_GetTick(); + initial_TxXferCount = Size; + + if (hspi->State != HAL_SPI_STATE_READY) + { + return HAL_BUSY; + } + + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hspi); + + /* Set the transaction information */ + hspi->State = HAL_SPI_STATE_BUSY_TX; + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + hspi->pTxBuffPtr = (const uint8_t *)pData; + hspi->TxXferSize = Size; + hspi->TxXferCount = Size; + + /*Init field not used in handle to zero */ + hspi->pRxBuffPtr = (uint8_t *)NULL; + hspi->RxXferSize = 0U; + hspi->RxXferCount = 0U; + hspi->TxISR = NULL; + hspi->RxISR = NULL; + + /* Configure communication direction : 1Line */ + if (hspi->Init.Direction == SPI_DIRECTION_1LINE) + { + /* Disable SPI Peripheral before set 1Line direction (BIDIOE bit) */ + __HAL_SPI_DISABLE(hspi); + SPI_1LINE_TX(hspi); + } + +#if (USE_SPI_CRC != 0U) + /* Reset CRC Calculation */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SPI_RESET_CRC(hspi); + } +#endif /* USE_SPI_CRC */ + + /* Check if the SPI is already enabled */ + if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable SPI peripheral */ + __HAL_SPI_ENABLE(hspi); + } + + /* Transmit data in 16 Bit mode */ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + if ((hspi->Init.Mode == SPI_MODE_SLAVE) || (initial_TxXferCount == 0x01U)) + { + hspi->Instance->DR = *((const uint16_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr += sizeof(uint16_t); + hspi->TxXferCount--; + } + /* Transmit data in 16 Bit mode */ + while (hspi->TxXferCount > 0U) + { + /* Wait until TXE flag is set to send data */ + if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE)) + { + hspi->Instance->DR = *((const uint16_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr += sizeof(uint16_t); + hspi->TxXferCount--; + } + else + { + /* Timeout management */ + if ((((HAL_GetTick() - tickstart) >= Timeout) && (Timeout != HAL_MAX_DELAY)) || (Timeout == 0U)) + { + hspi->State = HAL_SPI_STATE_READY; + __HAL_UNLOCK(hspi); + return HAL_TIMEOUT; + } + } + } + } + /* Transmit data in 8 Bit mode */ + else + { + if ((hspi->Init.Mode == SPI_MODE_SLAVE) || (initial_TxXferCount == 0x01U)) + { + *((__IO uint8_t *)&hspi->Instance->DR) = *((const uint8_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr += sizeof(uint8_t); + hspi->TxXferCount--; + } + while (hspi->TxXferCount > 0U) + { + /* Wait until TXE flag is set to send data */ + if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE)) + { + *((__IO uint8_t *)&hspi->Instance->DR) = *((const uint8_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr += sizeof(uint8_t); + hspi->TxXferCount--; + } + else + { + /* Timeout management */ + if ((((HAL_GetTick() - tickstart) >= Timeout) && (Timeout != HAL_MAX_DELAY)) || (Timeout == 0U)) + { + hspi->State = HAL_SPI_STATE_READY; + __HAL_UNLOCK(hspi); + return HAL_TIMEOUT; + } + } + } + } +#if (USE_SPI_CRC != 0U) + /* Enable CRC Transmission */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + + /* Check the end of the transaction */ + if (SPI_EndRxTxTransaction(hspi, Timeout, tickstart) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_FLAG; + } + + /* Clear overrun flag in 2 Lines communication mode because received is not read */ + if (hspi->Init.Direction == SPI_DIRECTION_2LINES) + { + __HAL_SPI_CLEAR_OVRFLAG(hspi); + } + + hspi->State = HAL_SPI_STATE_READY; + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + + if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) + { + return HAL_ERROR; + } + else + { + return HAL_OK; + } +} + +/** + * @brief Receive an amount of data in blocking mode. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param pData pointer to data buffer (u8 or u16 data elements) + * @param Size amount of data elements (u8 or u16) to be received + * @param Timeout Timeout duration in ms + * @retval HAL status + * @note In master mode, if the direction is set to SPI_DIRECTION_2LINES + * the receive buffer is written to data register (DR) to generate + * clock pulses and receive data + */ +HAL_StatusTypeDef HAL_SPI_Receive(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout) +{ +#if (USE_SPI_CRC != 0U) + __IO uint32_t tmpreg = 0U; + __IO uint8_t *ptmpreg8; + __IO uint8_t tmpreg8 = 0; +#endif /* USE_SPI_CRC */ + uint32_t tickstart; + + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + /* in this case, 16-bit access is performed on Data + So, check Data is 16-bit aligned address */ + assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pData)); + } + + if (hspi->State != HAL_SPI_STATE_READY) + { + return HAL_BUSY; + } + + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if ((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES)) + { + hspi->State = HAL_SPI_STATE_BUSY_RX; + /* Call transmit-receive function to send Dummy data on Tx line and generate clock on CLK line */ + return HAL_SPI_TransmitReceive(hspi, pData, pData, Size, Timeout); + } + + /* Init tickstart for timeout management*/ + tickstart = HAL_GetTick(); + + /* Process Locked */ + __HAL_LOCK(hspi); + + /* Set the transaction information */ + hspi->State = HAL_SPI_STATE_BUSY_RX; + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + hspi->pRxBuffPtr = (uint8_t *)pData; + hspi->RxXferSize = Size; + hspi->RxXferCount = Size; + + /*Init field not used in handle to zero */ + hspi->pTxBuffPtr = (uint8_t *)NULL; + hspi->TxXferSize = 0U; + hspi->TxXferCount = 0U; + hspi->RxISR = NULL; + hspi->TxISR = NULL; + +#if (USE_SPI_CRC != 0U) + /* Reset CRC Calculation */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SPI_RESET_CRC(hspi); + /* this is done to handle the CRCNEXT before the latest data */ + hspi->RxXferCount--; + } +#endif /* USE_SPI_CRC */ + + /* Set the Rx Fifo threshold */ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + /* Set RX Fifo threshold according the reception data length: 16bit */ + CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + } + else + { + /* Set RX Fifo threshold according the reception data length: 8bit */ + SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + } + + /* Configure communication direction: 1Line */ + if (hspi->Init.Direction == SPI_DIRECTION_1LINE) + { + /* Disable SPI Peripheral before set 1Line direction (BIDIOE bit) */ + __HAL_SPI_DISABLE(hspi); + SPI_1LINE_RX(hspi); + } + + /* Check if the SPI is already enabled */ + if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable SPI peripheral */ + __HAL_SPI_ENABLE(hspi); + } + + /* Receive data in 8 Bit mode */ + if (hspi->Init.DataSize <= SPI_DATASIZE_8BIT) + { + /* Transfer loop */ + while (hspi->RxXferCount > 0U) + { + /* Check the RXNE flag */ + if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE)) + { + /* read the received data */ + (* (uint8_t *)hspi->pRxBuffPtr) = *(__IO uint8_t *)&hspi->Instance->DR; + hspi->pRxBuffPtr += sizeof(uint8_t); + hspi->RxXferCount--; + } + else + { + /* Timeout management */ + if ((((HAL_GetTick() - tickstart) >= Timeout) && (Timeout != HAL_MAX_DELAY)) || (Timeout == 0U)) + { + hspi->State = HAL_SPI_STATE_READY; + __HAL_UNLOCK(hspi); + return HAL_TIMEOUT; + } + } + } + } + else + { + /* Transfer loop */ + while (hspi->RxXferCount > 0U) + { + /* Check the RXNE flag */ + if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE)) + { + *((uint16_t *)hspi->pRxBuffPtr) = (uint16_t)hspi->Instance->DR; + hspi->pRxBuffPtr += sizeof(uint16_t); + hspi->RxXferCount--; + } + else + { + /* Timeout management */ + if ((((HAL_GetTick() - tickstart) >= Timeout) && (Timeout != HAL_MAX_DELAY)) || (Timeout == 0U)) + { + hspi->State = HAL_SPI_STATE_READY; + __HAL_UNLOCK(hspi); + return HAL_TIMEOUT; + } + } + } + } + +#if (USE_SPI_CRC != 0U) + /* Handle the CRC Transmission */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + /* freeze the CRC before the latest data */ + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + + /* Read the latest data */ + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, Timeout, tickstart) != HAL_OK) + { + /* the latest data has not been received */ + __HAL_UNLOCK(hspi); + return HAL_TIMEOUT; + } + + /* Receive last data in 16 Bit mode */ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + *((uint16_t *)hspi->pRxBuffPtr) = (uint16_t)hspi->Instance->DR; + } + /* Receive last data in 8 Bit mode */ + else + { + (*(uint8_t *)hspi->pRxBuffPtr) = *(__IO uint8_t *)&hspi->Instance->DR; + } + + /* Wait the CRC data */ + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, Timeout, tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + hspi->State = HAL_SPI_STATE_READY; + __HAL_UNLOCK(hspi); + return HAL_TIMEOUT; + } + + /* Read CRC to Flush DR and RXNE flag */ + if (hspi->Init.DataSize == SPI_DATASIZE_16BIT) + { + /* Read 16bit CRC */ + tmpreg = READ_REG(hspi->Instance->DR); + /* To avoid GCC warning */ + UNUSED(tmpreg); + } + else + { + /* Initialize the 8bit temporary pointer */ + ptmpreg8 = (__IO uint8_t *)&hspi->Instance->DR; + /* Read 8bit CRC */ + tmpreg8 = *ptmpreg8; + /* To avoid GCC warning */ + UNUSED(tmpreg8); + + if ((hspi->Init.DataSize == SPI_DATASIZE_8BIT) && (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT)) + { + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, Timeout, tickstart) != HAL_OK) + { + /* Error on the CRC reception */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + hspi->State = HAL_SPI_STATE_READY; + __HAL_UNLOCK(hspi); + return HAL_TIMEOUT; + } + /* Read 8bit CRC again in case of 16bit CRC in 8bit Data mode */ + tmpreg8 = *ptmpreg8; + /* To avoid GCC warning */ + UNUSED(tmpreg8); + } + } + } +#endif /* USE_SPI_CRC */ + + /* Check the end of the transaction */ + if (SPI_EndRxTransaction(hspi, Timeout, tickstart) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_FLAG; + } + +#if (USE_SPI_CRC != 0U) + /* Check if CRC error occurred */ + if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR)) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + __HAL_SPI_CLEAR_CRCERRFLAG(hspi); + } +#endif /* USE_SPI_CRC */ + + hspi->State = HAL_SPI_STATE_READY; + /* Unlock the process */ + __HAL_UNLOCK(hspi); + if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) + { + return HAL_ERROR; + } + else + { + return HAL_OK; + } +} + +/** + * @brief Transmit and Receive an amount of data in blocking mode. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param pTxData pointer to transmission data buffer (u8 or u16 data elements) + * @param pRxData pointer to reception data buffer (u8 or u16 data elements) + * @param Size amount of data elements (u8 or u16) to be sent and received + * @param Timeout Timeout duration in ms + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_TransmitReceive(SPI_HandleTypeDef *hspi, const uint8_t *pTxData, uint8_t *pRxData, + uint16_t Size, uint32_t Timeout) +{ + uint16_t initial_TxXferCount; + uint32_t tmp_mode; + HAL_SPI_StateTypeDef tmp_state; + uint32_t tickstart; +#if (USE_SPI_CRC != 0U) + __IO uint32_t tmpreg = 0U; + uint32_t spi_cr1; + uint32_t spi_cr2; + __IO uint8_t *ptmpreg8; + __IO uint8_t tmpreg8 = 0; +#endif /* USE_SPI_CRC */ + + /* Variable used to alternate Rx and Tx during transfer */ + uint32_t txallowed = 1U; + + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + /* in this case, 16-bit access is performed on Data + So, check Data is 16-bit aligned address */ + assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pTxData)); + assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pRxData)); + } + + /* Check Direction parameter */ + assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction)); + + /* Init tickstart for timeout management*/ + tickstart = HAL_GetTick(); + + /* Init temporary variables */ + tmp_state = hspi->State; + tmp_mode = hspi->Init.Mode; + initial_TxXferCount = Size; +#if (USE_SPI_CRC != 0U) + spi_cr1 = READ_REG(hspi->Instance->CR1); + spi_cr2 = READ_REG(hspi->Instance->CR2); +#endif /* USE_SPI_CRC */ + + if (!((tmp_state == HAL_SPI_STATE_READY) || \ + ((tmp_mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && + (tmp_state == HAL_SPI_STATE_BUSY_RX)))) + { + return HAL_BUSY; + } + + if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hspi); + + /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */ + if (hspi->State != HAL_SPI_STATE_BUSY_RX) + { + hspi->State = HAL_SPI_STATE_BUSY_TX_RX; + } + + /* Set the transaction information */ + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + hspi->pRxBuffPtr = (uint8_t *)pRxData; + hspi->RxXferCount = Size; + hspi->RxXferSize = Size; + hspi->pTxBuffPtr = (const uint8_t *)pTxData; + hspi->TxXferCount = Size; + hspi->TxXferSize = Size; + + /*Init field not used in handle to zero */ + hspi->RxISR = NULL; + hspi->TxISR = NULL; + +#if (USE_SPI_CRC != 0U) + /* Reset CRC Calculation */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SPI_RESET_CRC(hspi); + } +#endif /* USE_SPI_CRC */ + + /* Set the Rx Fifo threshold */ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + /* Set fiforxthreshold according the reception data length: 16bit */ + CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + } + else + { + /* Set fiforxthreshold according the reception data length: 8bit */ + SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + } + + /* Check if the SPI is already enabled */ + if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable SPI peripheral */ + __HAL_SPI_ENABLE(hspi); + } + + /* Transmit and Receive data in 16 Bit mode */ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + if ((hspi->Init.Mode == SPI_MODE_SLAVE) || (initial_TxXferCount == 0x01U)) + { + hspi->Instance->DR = *((const uint16_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr += sizeof(uint16_t); + hspi->TxXferCount--; + +#if (USE_SPI_CRC != 0U) + /* Enable CRC Transmission */ + if ((hspi->TxXferCount == 0U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) + { + /* Set NSS Soft to received correctly the CRC on slave mode with NSS pulse activated */ + if ((READ_BIT(spi_cr1, SPI_CR1_MSTR) == 0U) && (READ_BIT(spi_cr2, SPI_CR2_NSSP) == SPI_CR2_NSSP)) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_SSM); + } + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + + } + while ((hspi->TxXferCount > 0U) || (hspi->RxXferCount > 0U)) + { + /* Check TXE flag */ + if ((__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE)) && (hspi->TxXferCount > 0U) && (txallowed == 1U)) + { + hspi->Instance->DR = *((const uint16_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr += sizeof(uint16_t); + hspi->TxXferCount--; + /* Next Data is a reception (Rx). Tx not allowed */ + txallowed = 0U; + +#if (USE_SPI_CRC != 0U) + /* Enable CRC Transmission */ + if ((hspi->TxXferCount == 0U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) + { + /* Set NSS Soft to received correctly the CRC on slave mode with NSS pulse activated */ + if ((READ_BIT(spi_cr1, SPI_CR1_MSTR) == 0U) && (READ_BIT(spi_cr2, SPI_CR2_NSSP) == SPI_CR2_NSSP)) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_SSM); + } + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + } + + /* Check RXNE flag */ + if ((__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE)) && (hspi->RxXferCount > 0U)) + { + *((uint16_t *)hspi->pRxBuffPtr) = (uint16_t)hspi->Instance->DR; + hspi->pRxBuffPtr += sizeof(uint16_t); + hspi->RxXferCount--; + /* Next Data is a Transmission (Tx). Tx is allowed */ + txallowed = 1U; + } + if (((HAL_GetTick() - tickstart) >= Timeout) && (Timeout != HAL_MAX_DELAY)) + { + hspi->State = HAL_SPI_STATE_READY; + __HAL_UNLOCK(hspi); + return HAL_TIMEOUT; + } + } + } + /* Transmit and Receive data in 8 Bit mode */ + else + { + if ((hspi->Init.Mode == SPI_MODE_SLAVE) || (initial_TxXferCount == 0x01U)) + { + *((__IO uint8_t *)&hspi->Instance->DR) = *((const uint8_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr += sizeof(uint8_t); + hspi->TxXferCount--; + +#if (USE_SPI_CRC != 0U) + /* Enable CRC Transmission */ + if ((hspi->TxXferCount == 0U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) + { + /* Set NSS Soft to received correctly the CRC on slave mode with NSS pulse activated */ + if ((READ_BIT(spi_cr1, SPI_CR1_MSTR) == 0U) && (READ_BIT(spi_cr2, SPI_CR2_NSSP) == SPI_CR2_NSSP)) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_SSM); + } + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + } + while ((hspi->TxXferCount > 0U) || (hspi->RxXferCount > 0U)) + { + /* Check TXE flag */ + if ((__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE)) && (hspi->TxXferCount > 0U) && (txallowed == 1U)) + { + *(__IO uint8_t *)&hspi->Instance->DR = *((const uint8_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr++; + hspi->TxXferCount--; + /* Next Data is a reception (Rx). Tx not allowed */ + txallowed = 0U; + +#if (USE_SPI_CRC != 0U) + /* Enable CRC Transmission */ + if ((hspi->TxXferCount == 0U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) + { + /* Set NSS Soft to received correctly the CRC on slave mode with NSS pulse activated */ + if ((READ_BIT(spi_cr1, SPI_CR1_MSTR) == 0U) && (READ_BIT(spi_cr2, SPI_CR2_NSSP) == SPI_CR2_NSSP)) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_SSM); + } + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + } + + /* Wait until RXNE flag is reset */ + if ((__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE)) && (hspi->RxXferCount > 0U)) + { + (*(uint8_t *)hspi->pRxBuffPtr) = *(__IO uint8_t *)&hspi->Instance->DR; + hspi->pRxBuffPtr++; + hspi->RxXferCount--; + /* Next Data is a Transmission (Tx). Tx is allowed */ + txallowed = 1U; + } + if ((((HAL_GetTick() - tickstart) >= Timeout) && ((Timeout != HAL_MAX_DELAY))) || (Timeout == 0U)) + { + hspi->State = HAL_SPI_STATE_READY; + __HAL_UNLOCK(hspi); + return HAL_TIMEOUT; + } + } + } + +#if (USE_SPI_CRC != 0U) + /* Read CRC from DR to close CRC calculation process */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + /* Wait until TXE flag */ + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, Timeout, tickstart) != HAL_OK) + { + /* Error on the CRC reception */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + hspi->State = HAL_SPI_STATE_READY; + __HAL_UNLOCK(hspi); + return HAL_TIMEOUT; + } + /* Read CRC */ + if (hspi->Init.DataSize == SPI_DATASIZE_16BIT) + { + /* Read 16bit CRC */ + tmpreg = READ_REG(hspi->Instance->DR); + /* To avoid GCC warning */ + UNUSED(tmpreg); + } + else + { + /* Initialize the 8bit temporary pointer */ + ptmpreg8 = (__IO uint8_t *)&hspi->Instance->DR; + /* Read 8bit CRC */ + tmpreg8 = *ptmpreg8; + /* To avoid GCC warning */ + UNUSED(tmpreg8); + + if (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT) + { + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, Timeout, tickstart) != HAL_OK) + { + /* Error on the CRC reception */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + hspi->State = HAL_SPI_STATE_READY; + __HAL_UNLOCK(hspi); + return HAL_TIMEOUT; + } + /* Read 8bit CRC again in case of 16bit CRC in 8bit Data mode */ + tmpreg8 = *ptmpreg8; + /* To avoid GCC warning */ + UNUSED(tmpreg8); + } + } + } + + /* Check if CRC error occurred */ + if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR)) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + /* Clear CRC Flag */ + __HAL_SPI_CLEAR_CRCERRFLAG(hspi); + __HAL_UNLOCK(hspi); + return HAL_ERROR; + } +#endif /* USE_SPI_CRC */ + + /* Check the end of the transaction */ + if (SPI_EndRxTxTransaction(hspi, Timeout, tickstart) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_FLAG; + __HAL_UNLOCK(hspi); + return HAL_ERROR; + } + + + hspi->State = HAL_SPI_STATE_READY; + /* Unlock the process */ + __HAL_UNLOCK(hspi); + + if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) + { + return HAL_ERROR; + } + else + { + return HAL_OK; + } +} + +/** + * @brief Transmit an amount of data in non-blocking mode with Interrupt. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param pData pointer to data buffer (u8 or u16 data elements) + * @param Size amount of data elements (u8 or u16) to be sent + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_Transmit_IT(SPI_HandleTypeDef *hspi, const uint8_t *pData, uint16_t Size) +{ + + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + /* in this case, 16-bit access is performed on Data + So, check Data is 16-bit aligned address */ + assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pData)); + } + + /* Check Direction parameter */ + assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction)); + + + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if (hspi->State != HAL_SPI_STATE_READY) + { + return HAL_BUSY; + } + + /* Process Locked */ + __HAL_LOCK(hspi); + + /* Set the transaction information */ + hspi->State = HAL_SPI_STATE_BUSY_TX; + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + hspi->pTxBuffPtr = (const uint8_t *)pData; + hspi->TxXferSize = Size; + hspi->TxXferCount = Size; + + /* Init field not used in handle to zero */ + hspi->pRxBuffPtr = (uint8_t *)NULL; + hspi->RxXferSize = 0U; + hspi->RxXferCount = 0U; + hspi->RxISR = NULL; + + /* Set the function for IT treatment */ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + hspi->TxISR = SPI_TxISR_16BIT; + } + else + { + hspi->TxISR = SPI_TxISR_8BIT; + } + + /* Configure communication direction : 1Line */ + if (hspi->Init.Direction == SPI_DIRECTION_1LINE) + { + /* Disable SPI Peripheral before set 1Line direction (BIDIOE bit) */ + __HAL_SPI_DISABLE(hspi); + SPI_1LINE_TX(hspi); + } + +#if (USE_SPI_CRC != 0U) + /* Reset CRC Calculation */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SPI_RESET_CRC(hspi); + } +#endif /* USE_SPI_CRC */ + + /* Check if the SPI is already enabled */ + if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable SPI peripheral */ + __HAL_SPI_ENABLE(hspi); + } + + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + /* Enable TXE and ERR interrupt */ + __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_ERR)); + + return HAL_OK; +} + +/** + * @brief Receive an amount of data in non-blocking mode with Interrupt. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param pData pointer to data buffer (u8 or u16 data elements) + * @param Size amount of data elements (u8 or u16) to be received + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_Receive_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size) +{ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + /* in this case, 16-bit access is performed on Data + So, check Data is 16-bit aligned address */ + assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pData)); + } + + + if (hspi->State != HAL_SPI_STATE_READY) + { + return HAL_BUSY; + } + + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if ((hspi->Init.Direction == SPI_DIRECTION_2LINES) && (hspi->Init.Mode == SPI_MODE_MASTER)) + { + hspi->State = HAL_SPI_STATE_BUSY_RX; + /* Call transmit-receive function to send Dummy data on Tx line and generate clock on CLK line */ + return HAL_SPI_TransmitReceive_IT(hspi, pData, pData, Size); + } + + + /* Process Locked */ + __HAL_LOCK(hspi); + + /* Set the transaction information */ + hspi->State = HAL_SPI_STATE_BUSY_RX; + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + hspi->pRxBuffPtr = (uint8_t *)pData; + hspi->RxXferSize = Size; + hspi->RxXferCount = Size; + + /* Init field not used in handle to zero */ + hspi->pTxBuffPtr = (uint8_t *)NULL; + hspi->TxXferSize = 0U; + hspi->TxXferCount = 0U; + hspi->TxISR = NULL; + + /* Check the data size to adapt Rx threshold and the set the function for IT treatment */ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + /* Set RX Fifo threshold according the reception data length: 16 bit */ + CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + hspi->RxISR = SPI_RxISR_16BIT; + } + else + { + /* Set RX Fifo threshold according the reception data length: 8 bit */ + SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + hspi->RxISR = SPI_RxISR_8BIT; + } + + /* Configure communication direction : 1Line */ + if (hspi->Init.Direction == SPI_DIRECTION_1LINE) + { + /* Disable SPI Peripheral before set 1Line direction (BIDIOE bit) */ + __HAL_SPI_DISABLE(hspi); + SPI_1LINE_RX(hspi); + } + +#if (USE_SPI_CRC != 0U) + /* Reset CRC Calculation */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + hspi->CRCSize = 1U; + if ((hspi->Init.DataSize <= SPI_DATASIZE_8BIT) && (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT)) + { + hspi->CRCSize = 2U; + } + SPI_RESET_CRC(hspi); + } + else + { + hspi->CRCSize = 0U; + } +#endif /* USE_SPI_CRC */ + + /* Note : The SPI must be enabled after unlocking current process + to avoid the risk of SPI interrupt handle execution before current + process unlock */ + + /* Check if the SPI is already enabled */ + if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable SPI peripheral */ + __HAL_SPI_ENABLE(hspi); + } + + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + /* Enable RXNE and ERR interrupt */ + __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR)); + + return HAL_OK; +} + +/** + * @brief Transmit and Receive an amount of data in non-blocking mode with Interrupt. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param pTxData pointer to transmission data buffer (u8 or u16 data elements) + * @param pRxData pointer to reception data buffer (u8 or u16 data elements) + * @param Size amount of data elements (u8 or u16) to be sent and received + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_TransmitReceive_IT(SPI_HandleTypeDef *hspi, const uint8_t *pTxData, uint8_t *pRxData, + uint16_t Size) +{ + uint32_t tmp_mode; + HAL_SPI_StateTypeDef tmp_state; + + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + /* in this case, 16-bit access is performed on Data + So, check Data is 16-bit aligned address */ + assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pTxData)); + assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pRxData)); + } + + /* Check Direction parameter */ + assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction)); + + /* Init temporary variables */ + tmp_state = hspi->State; + tmp_mode = hspi->Init.Mode; + + if (!((tmp_state == HAL_SPI_STATE_READY) || \ + ((tmp_mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && + (tmp_state == HAL_SPI_STATE_BUSY_RX)))) + { + return HAL_BUSY; + } + + if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + /* Process locked */ + __HAL_LOCK(hspi); + + /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */ + if (hspi->State != HAL_SPI_STATE_BUSY_RX) + { + hspi->State = HAL_SPI_STATE_BUSY_TX_RX; + } + + /* Set the transaction information */ + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + hspi->pTxBuffPtr = (const uint8_t *)pTxData; + hspi->TxXferSize = Size; + hspi->TxXferCount = Size; + hspi->pRxBuffPtr = (uint8_t *)pRxData; + hspi->RxXferSize = Size; + hspi->RxXferCount = Size; + + /* Set the function for IT treatment */ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + hspi->RxISR = SPI_2linesRxISR_16BIT; + hspi->TxISR = SPI_2linesTxISR_16BIT; + } + else + { + hspi->RxISR = SPI_2linesRxISR_8BIT; + hspi->TxISR = SPI_2linesTxISR_8BIT; + } + +#if (USE_SPI_CRC != 0U) + /* Reset CRC Calculation */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + hspi->CRCSize = 1U; + if ((hspi->Init.DataSize <= SPI_DATASIZE_8BIT) && (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT)) + { + hspi->CRCSize = 2U; + } + SPI_RESET_CRC(hspi); + } + else + { + hspi->CRCSize = 0U; + } +#endif /* USE_SPI_CRC */ + + /* Check if packing mode is enabled and if there is more than 2 data to receive */ + if ((hspi->Init.DataSize > SPI_DATASIZE_8BIT) || (Size >= 2U)) + { + /* Set RX Fifo threshold according the reception data length: 16 bit */ + CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + } + else + { + /* Set RX Fifo threshold according the reception data length: 8 bit */ + SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + } + + + /* Check if the SPI is already enabled */ + if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable SPI peripheral */ + __HAL_SPI_ENABLE(hspi); + } + + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + /* Enable TXE, RXNE and ERR interrupt */ + __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_RXNE | SPI_IT_ERR)); + + return HAL_OK; +} + +/** + * @brief Transmit an amount of data in non-blocking mode with DMA. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param pData pointer to data buffer (u8 or u16 data elements) + * @param Size amount of data elements (u8 or u16) to be sent + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_Transmit_DMA(SPI_HandleTypeDef *hspi, const uint8_t *pData, uint16_t Size) +{ + + /* Check tx dma handle */ + assert_param(IS_SPI_DMA_HANDLE(hspi->hdmatx)); + + /* Check Direction parameter */ + assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction)); + + if (hspi->State != HAL_SPI_STATE_READY) + { + return HAL_BUSY; + } + + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hspi); + + /* Set the transaction information */ + hspi->State = HAL_SPI_STATE_BUSY_TX; + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + hspi->pTxBuffPtr = (const uint8_t *)pData; + hspi->TxXferSize = Size; + hspi->TxXferCount = Size; + + /* Init field not used in handle to zero */ + hspi->pRxBuffPtr = (uint8_t *)NULL; + hspi->TxISR = NULL; + hspi->RxISR = NULL; + hspi->RxXferSize = 0U; + hspi->RxXferCount = 0U; + + /* Configure communication direction : 1Line */ + if (hspi->Init.Direction == SPI_DIRECTION_1LINE) + { + /* Disable SPI Peripheral before set 1Line direction (BIDIOE bit) */ + __HAL_SPI_DISABLE(hspi); + SPI_1LINE_TX(hspi); + } + +#if (USE_SPI_CRC != 0U) + /* Reset CRC Calculation */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SPI_RESET_CRC(hspi); + } +#endif /* USE_SPI_CRC */ + + /* Set the SPI TxDMA Half transfer complete callback */ + hspi->hdmatx->XferHalfCpltCallback = SPI_DMAHalfTransmitCplt; + + /* Set the SPI TxDMA transfer complete callback */ + hspi->hdmatx->XferCpltCallback = SPI_DMATransmitCplt; + + /* Set the DMA error callback */ + hspi->hdmatx->XferErrorCallback = SPI_DMAError; + + /* Set the DMA AbortCpltCallback */ + hspi->hdmatx->XferAbortCallback = NULL; + + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); + /* Packing mode is enabled only if the DMA setting is HALWORD */ + if ((hspi->Init.DataSize <= SPI_DATASIZE_8BIT) && (hspi->hdmatx->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD)) + { + /* Check the even/odd of the data size + crc if enabled */ + if ((hspi->TxXferCount & 0x1U) == 0U) + { + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); + hspi->TxXferCount = (hspi->TxXferCount >> 1U); + } + else + { + SET_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); + hspi->TxXferCount = (hspi->TxXferCount >> 1U) + 1U; + } + } + + /* Enable the Tx DMA Stream/Channel */ + if (HAL_OK != HAL_DMA_Start_IT(hspi->hdmatx, (uint32_t)hspi->pTxBuffPtr, (uint32_t)&hspi->Instance->DR, + hspi->TxXferCount)) + { + /* Update SPI error code */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA); + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + return HAL_ERROR; + } + + /* Check if the SPI is already enabled */ + if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable SPI peripheral */ + __HAL_SPI_ENABLE(hspi); + } + + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + + /* Enable the SPI Error Interrupt Bit */ + __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_ERR)); + + /* Enable Tx DMA Request */ + SET_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN); + + return HAL_OK; +} + +/** + * @brief Receive an amount of data in non-blocking mode with DMA. + * @note In case of MASTER mode and SPI_DIRECTION_2LINES direction, hdmatx shall be defined. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param pData pointer to data buffer (u8 or u16 data elements) + * @note When the CRC feature is enabled the pData Length must be Size + 1. + * @param Size amount of data elements (u8 or u16) to be received + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_Receive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size) +{ + /* Check rx dma handle */ + assert_param(IS_SPI_DMA_HANDLE(hspi->hdmarx)); + + if (hspi->State != HAL_SPI_STATE_READY) + { + return HAL_BUSY; + } + + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + if ((hspi->Init.Direction == SPI_DIRECTION_2LINES) && (hspi->Init.Mode == SPI_MODE_MASTER)) + { + hspi->State = HAL_SPI_STATE_BUSY_RX; + + /* Check tx dma handle */ + assert_param(IS_SPI_DMA_HANDLE(hspi->hdmatx)); + + /* Call transmit-receive function to send Dummy data on Tx line and generate clock on CLK line */ + return HAL_SPI_TransmitReceive_DMA(hspi, pData, pData, Size); + } + + /* Process Locked */ + __HAL_LOCK(hspi); + + /* Set the transaction information */ + hspi->State = HAL_SPI_STATE_BUSY_RX; + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + hspi->pRxBuffPtr = (uint8_t *)pData; + hspi->RxXferSize = Size; + hspi->RxXferCount = Size; + + /*Init field not used in handle to zero */ + hspi->RxISR = NULL; + hspi->TxISR = NULL; + hspi->TxXferSize = 0U; + hspi->TxXferCount = 0U; + + /* Configure communication direction : 1Line */ + if (hspi->Init.Direction == SPI_DIRECTION_1LINE) + { + /* Disable SPI Peripheral before set 1Line direction (BIDIOE bit) */ + __HAL_SPI_DISABLE(hspi); + SPI_1LINE_RX(hspi); + } + +#if (USE_SPI_CRC != 0U) + /* Reset CRC Calculation */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SPI_RESET_CRC(hspi); + } +#endif /* USE_SPI_CRC */ + + + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + /* Set RX Fifo threshold according the reception data length: 16bit */ + CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + } + else + { + /* Set RX Fifo threshold according the reception data length: 8bit */ + SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + + if (hspi->hdmarx->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD) + { + /* Set RX Fifo threshold according the reception data length: 16bit */ + CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + + if ((hspi->RxXferCount & 0x1U) == 0x0U) + { + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); + hspi->RxXferCount = hspi->RxXferCount >> 1U; + } + else + { + SET_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); + hspi->RxXferCount = (hspi->RxXferCount >> 1U) + 1U; + } + } + } + + /* Set the SPI RxDMA Half transfer complete callback */ + hspi->hdmarx->XferHalfCpltCallback = SPI_DMAHalfReceiveCplt; + + /* Set the SPI Rx DMA transfer complete callback */ + hspi->hdmarx->XferCpltCallback = SPI_DMAReceiveCplt; + + /* Set the DMA error callback */ + hspi->hdmarx->XferErrorCallback = SPI_DMAError; + + /* Set the DMA AbortCpltCallback */ + hspi->hdmarx->XferAbortCallback = NULL; + + /* Enable the Rx DMA Stream/Channel */ + if (HAL_OK != HAL_DMA_Start_IT(hspi->hdmarx, (uint32_t)&hspi->Instance->DR, (uint32_t)hspi->pRxBuffPtr, + hspi->RxXferCount)) + { + /* Update SPI error code */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA); + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + return HAL_ERROR; + } + + /* Check if the SPI is already enabled */ + if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable SPI peripheral */ + __HAL_SPI_ENABLE(hspi); + } + + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + + /* Enable the SPI Error Interrupt Bit */ + __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_ERR)); + + /* Enable Rx DMA Request */ + SET_BIT(hspi->Instance->CR2, SPI_CR2_RXDMAEN); + + return HAL_OK; +} + +/** + * @brief Transmit and Receive an amount of data in non-blocking mode with DMA. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param pTxData pointer to transmission data buffer (u8 or u16 data elements) + * @param pRxData pointer to reception data buffer (u8 or u16 data elements) + * @note When the CRC feature is enabled the pRxData Length must be Size + 1 + * @param Size amount of data elements (u8 or u16) to be sent and received + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_TransmitReceive_DMA(SPI_HandleTypeDef *hspi, const uint8_t *pTxData, uint8_t *pRxData, + uint16_t Size) +{ + uint32_t tmp_mode; + HAL_SPI_StateTypeDef tmp_state; + + /* Check rx & tx dma handles */ + assert_param(IS_SPI_DMA_HANDLE(hspi->hdmarx)); + assert_param(IS_SPI_DMA_HANDLE(hspi->hdmatx)); + + /* Check Direction parameter */ + assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction)); + + /* Init temporary variables */ + tmp_state = hspi->State; + tmp_mode = hspi->Init.Mode; + + if (!((tmp_state == HAL_SPI_STATE_READY) || + ((tmp_mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && + (tmp_state == HAL_SPI_STATE_BUSY_RX)))) + { + return HAL_BUSY; + } + + if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + /* Process locked */ + __HAL_LOCK(hspi); + + /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */ + if (hspi->State != HAL_SPI_STATE_BUSY_RX) + { + hspi->State = HAL_SPI_STATE_BUSY_TX_RX; + } + + /* Set the transaction information */ + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + hspi->pTxBuffPtr = (const uint8_t *)pTxData; + hspi->TxXferSize = Size; + hspi->TxXferCount = Size; + hspi->pRxBuffPtr = (uint8_t *)pRxData; + hspi->RxXferSize = Size; + hspi->RxXferCount = Size; + + /* Init field not used in handle to zero */ + hspi->RxISR = NULL; + hspi->TxISR = NULL; + +#if (USE_SPI_CRC != 0U) + /* Reset CRC Calculation */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SPI_RESET_CRC(hspi); + } +#endif /* USE_SPI_CRC */ + + /* Reset the threshold bit */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX | SPI_CR2_LDMARX); + + /* The packing mode management is enabled by the DMA settings according the spi data size */ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + /* Set fiforxthreshold according the reception data length: 16bit */ + CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + } + else + { + /* Set RX Fifo threshold according the reception data length: 8bit */ + SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + + if (hspi->hdmatx->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD) + { + if ((hspi->TxXferSize & 0x1U) == 0x0U) + { + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); + hspi->TxXferCount = hspi->TxXferCount >> 1U; + } + else + { + SET_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); + hspi->TxXferCount = (hspi->TxXferCount >> 1U) + 1U; + } + } + + if (hspi->hdmarx->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD) + { + /* Set RX Fifo threshold according the reception data length: 16bit */ + CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + + if ((hspi->RxXferCount & 0x1U) == 0x0U) + { + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); + hspi->RxXferCount = hspi->RxXferCount >> 1U; + } + else + { + SET_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); + hspi->RxXferCount = (hspi->RxXferCount >> 1U) + 1U; + } + } + } + + /* Check if we are in Rx only or in Rx/Tx Mode and configure the DMA transfer complete callback */ + if (hspi->State == HAL_SPI_STATE_BUSY_RX) + { + /* Set the SPI Rx DMA Half transfer complete callback */ + hspi->hdmarx->XferHalfCpltCallback = SPI_DMAHalfReceiveCplt; + hspi->hdmarx->XferCpltCallback = SPI_DMAReceiveCplt; + } + else + { + /* Set the SPI Tx/Rx DMA Half transfer complete callback */ + hspi->hdmarx->XferHalfCpltCallback = SPI_DMAHalfTransmitReceiveCplt; + hspi->hdmarx->XferCpltCallback = SPI_DMATransmitReceiveCplt; + } + + /* Set the DMA error callback */ + hspi->hdmarx->XferErrorCallback = SPI_DMAError; + + /* Set the DMA AbortCpltCallback */ + hspi->hdmarx->XferAbortCallback = NULL; + + /* Enable the Rx DMA Stream/Channel */ + if (HAL_OK != HAL_DMA_Start_IT(hspi->hdmarx, (uint32_t)&hspi->Instance->DR, (uint32_t)hspi->pRxBuffPtr, + hspi->RxXferCount)) + { + /* Update SPI error code */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA); + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + return HAL_ERROR; + } + + /* Enable Rx DMA Request */ + SET_BIT(hspi->Instance->CR2, SPI_CR2_RXDMAEN); + + /* Set the SPI Tx DMA transfer complete callback as NULL because the communication closing + is performed in DMA reception complete callback */ + hspi->hdmatx->XferHalfCpltCallback = NULL; + hspi->hdmatx->XferCpltCallback = NULL; + hspi->hdmatx->XferErrorCallback = NULL; + hspi->hdmatx->XferAbortCallback = NULL; + + /* Enable the Tx DMA Stream/Channel */ + if (HAL_OK != HAL_DMA_Start_IT(hspi->hdmatx, (uint32_t)hspi->pTxBuffPtr, (uint32_t)&hspi->Instance->DR, + hspi->TxXferCount)) + { + /* Update SPI error code */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA); + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + return HAL_ERROR; + } + + /* Check if the SPI is already enabled */ + if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) + { + /* Enable SPI peripheral */ + __HAL_SPI_ENABLE(hspi); + } + + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + + /* Enable the SPI Error Interrupt Bit */ + __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_ERR)); + + /* Enable Tx DMA Request */ + SET_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN); + + return HAL_OK; +} + +/** + * @brief Abort ongoing transfer (blocking mode). + * @param hspi SPI handle. + * @note This procedure could be used for aborting any ongoing transfer (Tx and Rx), + * started in Interrupt or DMA mode. + * This procedure performs following operations : + * - Disable SPI Interrupts (depending of transfer direction) + * - Disable the DMA transfer in the peripheral register (if enabled) + * - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode) + * - Set handle State to READY + * @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_Abort(SPI_HandleTypeDef *hspi) +{ + HAL_StatusTypeDef errorcode; + __IO uint32_t count; + __IO uint32_t resetcount; + + /* Initialized local variable */ + errorcode = HAL_OK; + resetcount = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); + count = resetcount; + + /* Clear ERRIE interrupt to avoid error interrupts generation during Abort procedure */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_ERRIE); + + /* Disable TXEIE, RXNEIE and ERRIE(mode fault event, overrun error, TI frame error) interrupts */ + if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXEIE)) + { + hspi->TxISR = SPI_AbortTx_ISR; + /* Wait HAL_SPI_STATE_ABORT state */ + do + { + if (count == 0U) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); + break; + } + count--; + } while (hspi->State != HAL_SPI_STATE_ABORT); + /* Reset Timeout Counter */ + count = resetcount; + } + + if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXNEIE)) + { + hspi->RxISR = SPI_AbortRx_ISR; + /* Wait HAL_SPI_STATE_ABORT state */ + do + { + if (count == 0U) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); + break; + } + count--; + } while (hspi->State != HAL_SPI_STATE_ABORT); + /* Reset Timeout Counter */ + count = resetcount; + } + + /* Disable the SPI DMA Tx request if enabled */ + if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXDMAEN)) + { + /* Abort the SPI DMA Tx Stream/Channel : use blocking DMA Abort API (no callback) */ + if (hspi->hdmatx != NULL) + { + /* Set the SPI DMA Abort callback : + will lead to call HAL_SPI_AbortCpltCallback() at end of DMA abort procedure */ + hspi->hdmatx->XferAbortCallback = NULL; + + /* Abort DMA Tx Handle linked to SPI Peripheral */ + if (HAL_DMA_Abort(hspi->hdmatx) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Disable Tx DMA Request */ + CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_TXDMAEN)); + + if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Disable SPI Peripheral */ + __HAL_SPI_DISABLE(hspi); + + /* Empty the FRLVL fifo */ + if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, + HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + } + } + + /* Disable the SPI DMA Rx request if enabled */ + if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXDMAEN)) + { + /* Abort the SPI DMA Rx Stream/Channel : use blocking DMA Abort API (no callback) */ + if (hspi->hdmarx != NULL) + { + /* Set the SPI DMA Abort callback : + will lead to call HAL_SPI_AbortCpltCallback() at end of DMA abort procedure */ + hspi->hdmarx->XferAbortCallback = NULL; + + /* Abort DMA Rx Handle linked to SPI Peripheral */ + if (HAL_DMA_Abort(hspi->hdmarx) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Disable peripheral */ + __HAL_SPI_DISABLE(hspi); + + /* Control the BSY flag */ + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Empty the FRLVL fifo */ + if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, + HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Disable Rx DMA Request */ + CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_RXDMAEN)); + } + } + /* Reset Tx and Rx transfer counters */ + hspi->RxXferCount = 0U; + hspi->TxXferCount = 0U; + + /* Check error during Abort procedure */ + if (hspi->ErrorCode == HAL_SPI_ERROR_ABORT) + { + /* return HAL_Error in case of error during Abort procedure */ + errorcode = HAL_ERROR; + } + else + { + /* Reset errorCode */ + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + } + + /* Clear the Error flags in the SR register */ + __HAL_SPI_CLEAR_OVRFLAG(hspi); + __HAL_SPI_CLEAR_FREFLAG(hspi); + + /* Restore hspi->state to ready */ + hspi->State = HAL_SPI_STATE_READY; + + return errorcode; +} + +/** + * @brief Abort ongoing transfer (Interrupt mode). + * @param hspi SPI handle. + * @note This procedure could be used for aborting any ongoing transfer (Tx and Rx), + * started in Interrupt or DMA mode. + * This procedure performs following operations : + * - Disable SPI Interrupts (depending of transfer direction) + * - Disable the DMA transfer in the peripheral register (if enabled) + * - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode) + * - Set handle State to READY + * - At abort completion, call user abort complete callback + * @note This procedure is executed in Interrupt mode, meaning that abort procedure could be + * considered as completed only when user abort complete callback is executed (not when exiting function). + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_Abort_IT(SPI_HandleTypeDef *hspi) +{ + HAL_StatusTypeDef errorcode; + uint32_t abortcplt ; + __IO uint32_t count; + __IO uint32_t resetcount; + + /* Initialized local variable */ + errorcode = HAL_OK; + abortcplt = 1U; + resetcount = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); + count = resetcount; + + /* Clear ERRIE interrupt to avoid error interrupts generation during Abort procedure */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_ERRIE); + + /* Change Rx and Tx Irq Handler to Disable TXEIE, RXNEIE and ERRIE interrupts */ + if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXEIE)) + { + hspi->TxISR = SPI_AbortTx_ISR; + /* Wait HAL_SPI_STATE_ABORT state */ + do + { + if (count == 0U) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); + break; + } + count--; + } while (hspi->State != HAL_SPI_STATE_ABORT); + /* Reset Timeout Counter */ + count = resetcount; + } + + if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXNEIE)) + { + hspi->RxISR = SPI_AbortRx_ISR; + /* Wait HAL_SPI_STATE_ABORT state */ + do + { + if (count == 0U) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); + break; + } + count--; + } while (hspi->State != HAL_SPI_STATE_ABORT); + /* Reset Timeout Counter */ + count = resetcount; + } + + /* If DMA Tx and/or DMA Rx Handles are associated to SPI Handle, DMA Abort complete callbacks should be initialised + before any call to DMA Abort functions */ + /* DMA Tx Handle is valid */ + if (hspi->hdmatx != NULL) + { + /* Set DMA Abort Complete callback if UART DMA Tx request if enabled. + Otherwise, set it to NULL */ + if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXDMAEN)) + { + hspi->hdmatx->XferAbortCallback = SPI_DMATxAbortCallback; + } + else + { + hspi->hdmatx->XferAbortCallback = NULL; + } + } + /* DMA Rx Handle is valid */ + if (hspi->hdmarx != NULL) + { + /* Set DMA Abort Complete callback if UART DMA Rx request if enabled. + Otherwise, set it to NULL */ + if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXDMAEN)) + { + hspi->hdmarx->XferAbortCallback = SPI_DMARxAbortCallback; + } + else + { + hspi->hdmarx->XferAbortCallback = NULL; + } + } + + /* Disable the SPI DMA Tx request if enabled */ + if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXDMAEN)) + { + /* Abort the SPI DMA Tx Stream/Channel */ + if (hspi->hdmatx != NULL) + { + /* Abort DMA Tx Handle linked to SPI Peripheral */ + if (HAL_DMA_Abort_IT(hspi->hdmatx) != HAL_OK) + { + hspi->hdmatx->XferAbortCallback = NULL; + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + else + { + abortcplt = 0U; + } + } + } + /* Disable the SPI DMA Rx request if enabled */ + if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXDMAEN)) + { + /* Abort the SPI DMA Rx Stream/Channel */ + if (hspi->hdmarx != NULL) + { + /* Abort DMA Rx Handle linked to SPI Peripheral */ + if (HAL_DMA_Abort_IT(hspi->hdmarx) != HAL_OK) + { + hspi->hdmarx->XferAbortCallback = NULL; + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + else + { + abortcplt = 0U; + } + } + } + + if (abortcplt == 1U) + { + /* Reset Tx and Rx transfer counters */ + hspi->RxXferCount = 0U; + hspi->TxXferCount = 0U; + + /* Check error during Abort procedure */ + if (hspi->ErrorCode == HAL_SPI_ERROR_ABORT) + { + /* return HAL_Error in case of error during Abort procedure */ + errorcode = HAL_ERROR; + } + else + { + /* Reset errorCode */ + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + } + + /* Clear the Error flags in the SR register */ + __HAL_SPI_CLEAR_OVRFLAG(hspi); + __HAL_SPI_CLEAR_FREFLAG(hspi); + + /* Restore hspi->State to Ready */ + hspi->State = HAL_SPI_STATE_READY; + + /* As no DMA to be aborted, call directly user Abort complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->AbortCpltCallback(hspi); +#else + HAL_SPI_AbortCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + } + + return errorcode; +} + +/** + * @brief Pause the DMA Transfer. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for the specified SPI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_DMAPause(SPI_HandleTypeDef *hspi) +{ + /* Process Locked */ + __HAL_LOCK(hspi); + + /* Disable the SPI DMA Tx & Rx requests */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); + + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + + return HAL_OK; +} + +/** + * @brief Resume the DMA Transfer. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for the specified SPI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_DMAResume(SPI_HandleTypeDef *hspi) +{ + /* Process Locked */ + __HAL_LOCK(hspi); + + /* Enable the SPI DMA Tx & Rx requests */ + SET_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); + + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + + return HAL_OK; +} + +/** + * @brief Stop the DMA Transfer. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for the specified SPI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPI_DMAStop(SPI_HandleTypeDef *hspi) +{ + HAL_StatusTypeDef errorcode = HAL_OK; + /* The Lock is not implemented on this API to allow the user application + to call the HAL SPI API under callbacks HAL_SPI_TxCpltCallback() or HAL_SPI_RxCpltCallback() or + HAL_SPI_TxRxCpltCallback(): + when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated + and the correspond call back is executed HAL_SPI_TxCpltCallback() or HAL_SPI_RxCpltCallback() or + HAL_SPI_TxRxCpltCallback() + */ + + /* Abort the SPI DMA tx Stream/Channel */ + if (hspi->hdmatx != NULL) + { + if (HAL_OK != HAL_DMA_Abort(hspi->hdmatx)) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA); + errorcode = HAL_ERROR; + } + } + /* Abort the SPI DMA rx Stream/Channel */ + if (hspi->hdmarx != NULL) + { + if (HAL_OK != HAL_DMA_Abort(hspi->hdmarx)) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA); + errorcode = HAL_ERROR; + } + } + + /* Disable the SPI DMA Tx & Rx requests */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); + hspi->State = HAL_SPI_STATE_READY; + return errorcode; +} + +/** + * @brief Handle SPI interrupt request. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for the specified SPI module. + * @retval None + */ +void HAL_SPI_IRQHandler(SPI_HandleTypeDef *hspi) +{ + uint32_t itsource = hspi->Instance->CR2; + uint32_t itflag = hspi->Instance->SR; + + /* SPI in mode Receiver ----------------------------------------------------*/ + if ((SPI_CHECK_FLAG(itflag, SPI_FLAG_OVR) == RESET) && + (SPI_CHECK_FLAG(itflag, SPI_FLAG_RXNE) != RESET) && (SPI_CHECK_IT_SOURCE(itsource, SPI_IT_RXNE) != RESET)) + { + hspi->RxISR(hspi); + return; + } + + /* SPI in mode Transmitter -------------------------------------------------*/ + if ((SPI_CHECK_FLAG(itflag, SPI_FLAG_TXE) != RESET) && (SPI_CHECK_IT_SOURCE(itsource, SPI_IT_TXE) != RESET)) + { + hspi->TxISR(hspi); + return; + } + + /* SPI in Error Treatment --------------------------------------------------*/ + if (((SPI_CHECK_FLAG(itflag, SPI_FLAG_MODF) != RESET) || (SPI_CHECK_FLAG(itflag, SPI_FLAG_OVR) != RESET) + || (SPI_CHECK_FLAG(itflag, SPI_FLAG_FRE) != RESET)) && (SPI_CHECK_IT_SOURCE(itsource, SPI_IT_ERR) != RESET)) + { + /* SPI Overrun error interrupt occurred ----------------------------------*/ + if (SPI_CHECK_FLAG(itflag, SPI_FLAG_OVR) != RESET) + { + if (hspi->State != HAL_SPI_STATE_BUSY_TX) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_OVR); + __HAL_SPI_CLEAR_OVRFLAG(hspi); + } + else + { + __HAL_SPI_CLEAR_OVRFLAG(hspi); + return; + } + } + + /* SPI Mode Fault error interrupt occurred -------------------------------*/ + if (SPI_CHECK_FLAG(itflag, SPI_FLAG_MODF) != RESET) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_MODF); + __HAL_SPI_CLEAR_MODFFLAG(hspi); + } + + /* SPI Frame error interrupt occurred ------------------------------------*/ + if (SPI_CHECK_FLAG(itflag, SPI_FLAG_FRE) != RESET) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FRE); + __HAL_SPI_CLEAR_FREFLAG(hspi); + } + + if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) + { + /* Disable all interrupts */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE | SPI_IT_TXE | SPI_IT_ERR); + + hspi->State = HAL_SPI_STATE_READY; + /* Disable the SPI DMA requests if enabled */ + if ((HAL_IS_BIT_SET(itsource, SPI_CR2_TXDMAEN)) || (HAL_IS_BIT_SET(itsource, SPI_CR2_RXDMAEN))) + { + CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN)); + + /* Abort the SPI DMA Rx channel */ + if (hspi->hdmarx != NULL) + { + /* Set the SPI DMA Abort callback : + will lead to call HAL_SPI_ErrorCallback() at end of DMA abort procedure */ + hspi->hdmarx->XferAbortCallback = SPI_DMAAbortOnError; + if (HAL_OK != HAL_DMA_Abort_IT(hspi->hdmarx)) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); + } + } + /* Abort the SPI DMA Tx channel */ + if (hspi->hdmatx != NULL) + { + /* Set the SPI DMA Abort callback : + will lead to call HAL_SPI_ErrorCallback() at end of DMA abort procedure */ + hspi->hdmatx->XferAbortCallback = SPI_DMAAbortOnError; + if (HAL_OK != HAL_DMA_Abort_IT(hspi->hdmatx)) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); + } + } + } + else + { + /* Call user error callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->ErrorCallback(hspi); +#else + HAL_SPI_ErrorCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + } + } + return; + } +} + +/** + * @brief Tx Transfer completed callback. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +__weak void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspi); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SPI_TxCpltCallback should be implemented in the user file + */ +} + +/** + * @brief Rx Transfer completed callback. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +__weak void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspi); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SPI_RxCpltCallback should be implemented in the user file + */ +} + +/** + * @brief Tx and Rx Transfer completed callback. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +__weak void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspi); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SPI_TxRxCpltCallback should be implemented in the user file + */ +} + +/** + * @brief Tx Half Transfer completed callback. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +__weak void HAL_SPI_TxHalfCpltCallback(SPI_HandleTypeDef *hspi) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspi); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SPI_TxHalfCpltCallback should be implemented in the user file + */ +} + +/** + * @brief Rx Half Transfer completed callback. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +__weak void HAL_SPI_RxHalfCpltCallback(SPI_HandleTypeDef *hspi) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspi); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SPI_RxHalfCpltCallback() should be implemented in the user file + */ +} + +/** + * @brief Tx and Rx Half Transfer callback. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +__weak void HAL_SPI_TxRxHalfCpltCallback(SPI_HandleTypeDef *hspi) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspi); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SPI_TxRxHalfCpltCallback() should be implemented in the user file + */ +} + +/** + * @brief SPI error callback. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +__weak void HAL_SPI_ErrorCallback(SPI_HandleTypeDef *hspi) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspi); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SPI_ErrorCallback should be implemented in the user file + */ + /* NOTE : The ErrorCode parameter in the hspi handle is updated by the SPI processes + and user can use HAL_SPI_GetError() API to check the latest error occurred + */ +} + +/** + * @brief SPI Abort Complete callback. + * @param hspi SPI handle. + * @retval None + */ +__weak void HAL_SPI_AbortCpltCallback(SPI_HandleTypeDef *hspi) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hspi); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_SPI_AbortCpltCallback can be implemented in the user file. + */ +} + +/** + * @} + */ + +/** @defgroup SPI_Exported_Functions_Group3 Peripheral State and Errors functions + * @brief SPI control functions + * +@verbatim + =============================================================================== + ##### Peripheral State and Errors functions ##### + =============================================================================== + [..] + This subsection provides a set of functions allowing to control the SPI. + (+) HAL_SPI_GetState() API can be helpful to check in run-time the state of the SPI peripheral + (+) HAL_SPI_GetError() check in run-time Errors occurring during communication +@endverbatim + * @{ + */ + +/** + * @brief Return the SPI handle state. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval SPI state + */ +HAL_SPI_StateTypeDef HAL_SPI_GetState(const SPI_HandleTypeDef *hspi) +{ + /* Return SPI handle state */ + return hspi->State; +} + +/** + * @brief Return the SPI error code. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval SPI error code in bitmap format + */ +uint32_t HAL_SPI_GetError(const SPI_HandleTypeDef *hspi) +{ + /* Return SPI ErrorCode */ + return hspi->ErrorCode; +} + +/** + * @} + */ + +/** + * @} + */ + +/** @addtogroup SPI_Private_Functions + * @brief Private functions + * @{ + */ + +/** + * @brief DMA SPI transmit process complete callback. + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SPI_DMATransmitCplt(DMA_HandleTypeDef *hdma) +{ + SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); + uint32_t tickstart; + + /* Init tickstart for timeout management*/ + tickstart = HAL_GetTick(); + + /* DMA Normal Mode */ + if ((hdma->Instance->CCR & DMA_CCR_CIRC) != DMA_CCR_CIRC) + { + /* Disable ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR); + + /* Disable Tx DMA Request */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN); + + /* Check the end of the transaction */ + if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + } + + /* Clear overrun flag in 2 Lines communication mode because received data is not read */ + if (hspi->Init.Direction == SPI_DIRECTION_2LINES) + { + __HAL_SPI_CLEAR_OVRFLAG(hspi); + } + + hspi->TxXferCount = 0U; + hspi->State = HAL_SPI_STATE_READY; + + if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) + { + /* Call user error callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->ErrorCallback(hspi); +#else + HAL_SPI_ErrorCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + return; + } + } + /* Call user Tx complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->TxCpltCallback(hspi); +#else + HAL_SPI_TxCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA SPI receive process complete callback. + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SPI_DMAReceiveCplt(DMA_HandleTypeDef *hdma) +{ + SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); + uint32_t tickstart; +#if (USE_SPI_CRC != 0U) + __IO uint32_t tmpreg = 0U; + __IO uint8_t *ptmpreg8; + __IO uint8_t tmpreg8 = 0; +#endif /* USE_SPI_CRC */ + + /* Init tickstart for timeout management*/ + tickstart = HAL_GetTick(); + + /* DMA Normal Mode */ + if ((hdma->Instance->CCR & DMA_CCR_CIRC) != DMA_CCR_CIRC) + { + /* Disable ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR); + +#if (USE_SPI_CRC != 0U) + /* CRC handling */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + /* Wait until RXNE flag */ + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) + { + /* Error on the CRC reception */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + } + /* Read CRC */ + if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) + { + /* Read 16bit CRC */ + tmpreg = READ_REG(hspi->Instance->DR); + /* To avoid GCC warning */ + UNUSED(tmpreg); + } + else + { + /* Initialize the 8bit temporary pointer */ + ptmpreg8 = (__IO uint8_t *)&hspi->Instance->DR; + /* Read 8bit CRC */ + tmpreg8 = *ptmpreg8; + /* To avoid GCC warning */ + UNUSED(tmpreg8); + + if (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT) + { + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) + { + /* Error on the CRC reception */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + } + /* Read 8bit CRC again in case of 16bit CRC in 8bit Data mode */ + tmpreg8 = *ptmpreg8; + /* To avoid GCC warning */ + UNUSED(tmpreg8); + } + } + } +#endif /* USE_SPI_CRC */ + + /* Check if we are in Master RX 2 line mode */ + if ((hspi->Init.Direction == SPI_DIRECTION_2LINES) && (hspi->Init.Mode == SPI_MODE_MASTER)) + { + /* Disable Rx/Tx DMA Request (done by default to handle the case master rx direction 2 lines) */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); + } + else + { + /* Normal case */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_RXDMAEN); + } + + /* Check the end of the transaction */ + if (SPI_EndRxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_FLAG; + } + + hspi->RxXferCount = 0U; + hspi->State = HAL_SPI_STATE_READY; + +#if (USE_SPI_CRC != 0U) + /* Check if CRC error occurred */ + if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR)) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + __HAL_SPI_CLEAR_CRCERRFLAG(hspi); + } +#endif /* USE_SPI_CRC */ + + if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) + { + /* Call user error callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->ErrorCallback(hspi); +#else + HAL_SPI_ErrorCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + return; + } + } + /* Call user Rx complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->RxCpltCallback(hspi); +#else + HAL_SPI_RxCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA SPI transmit receive process complete callback. + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SPI_DMATransmitReceiveCplt(DMA_HandleTypeDef *hdma) +{ + SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); + uint32_t tickstart; +#if (USE_SPI_CRC != 0U) + __IO uint32_t tmpreg = 0U; + __IO uint8_t *ptmpreg8; + __IO uint8_t tmpreg8 = 0; +#endif /* USE_SPI_CRC */ + + /* Init tickstart for timeout management*/ + tickstart = HAL_GetTick(); + + /* DMA Normal Mode */ + if ((hdma->Instance->CCR & DMA_CCR_CIRC) != DMA_CCR_CIRC) + { + /* Disable ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR); + +#if (USE_SPI_CRC != 0U) + /* CRC handling */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + if ((hspi->Init.DataSize == SPI_DATASIZE_8BIT) && (hspi->Init.CRCLength == SPI_CRC_LENGTH_8BIT)) + { + if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_QUARTER_FULL, SPI_DEFAULT_TIMEOUT, + tickstart) != HAL_OK) + { + /* Error on the CRC reception */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + } + /* Initialize the 8bit temporary pointer */ + ptmpreg8 = (__IO uint8_t *)&hspi->Instance->DR; + /* Read 8bit CRC */ + tmpreg8 = *ptmpreg8; + /* To avoid GCC warning */ + UNUSED(tmpreg8); + } + else + { + if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_HALF_FULL, SPI_DEFAULT_TIMEOUT, + tickstart) != HAL_OK) + { + /* Error on the CRC reception */ + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + } + /* Read CRC to Flush DR and RXNE flag */ + tmpreg = READ_REG(hspi->Instance->DR); + /* To avoid GCC warning */ + UNUSED(tmpreg); + } + } +#endif /* USE_SPI_CRC */ + + /* Check the end of the transaction */ + if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + } + + /* Disable Rx/Tx DMA Request */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); + + hspi->TxXferCount = 0U; + hspi->RxXferCount = 0U; + hspi->State = HAL_SPI_STATE_READY; + +#if (USE_SPI_CRC != 0U) + /* Check if CRC error occurred */ + if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR)) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + __HAL_SPI_CLEAR_CRCERRFLAG(hspi); + } +#endif /* USE_SPI_CRC */ + + if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) + { + /* Call user error callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->ErrorCallback(hspi); +#else + HAL_SPI_ErrorCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + return; + } + } + /* Call user TxRx complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->TxRxCpltCallback(hspi); +#else + HAL_SPI_TxRxCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA SPI half transmit process complete callback. + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SPI_DMAHalfTransmitCplt(DMA_HandleTypeDef *hdma) +{ + SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); + + /* Call user Tx half complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->TxHalfCpltCallback(hspi); +#else + HAL_SPI_TxHalfCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA SPI half receive process complete callback + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SPI_DMAHalfReceiveCplt(DMA_HandleTypeDef *hdma) +{ + SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); + + /* Call user Rx half complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->RxHalfCpltCallback(hspi); +#else + HAL_SPI_RxHalfCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA SPI half transmit receive process complete callback. + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SPI_DMAHalfTransmitReceiveCplt(DMA_HandleTypeDef *hdma) +{ + SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); + + /* Call user TxRx half complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->TxRxHalfCpltCallback(hspi); +#else + HAL_SPI_TxRxHalfCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA SPI communication error callback. + * @param hdma pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void SPI_DMAError(DMA_HandleTypeDef *hdma) +{ + SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); + + /* Stop the disable DMA transfer on SPI side */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); + + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA); + hspi->State = HAL_SPI_STATE_READY; + /* Call user error callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->ErrorCallback(hspi); +#else + HAL_SPI_ErrorCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA SPI communication abort callback, when initiated by HAL services on Error + * (To be called at end of DMA Abort procedure following error occurrence). + * @param hdma DMA handle. + * @retval None + */ +static void SPI_DMAAbortOnError(DMA_HandleTypeDef *hdma) +{ + SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); + hspi->RxXferCount = 0U; + hspi->TxXferCount = 0U; + + /* Call user error callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->ErrorCallback(hspi); +#else + HAL_SPI_ErrorCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA SPI Tx communication abort callback, when initiated by user + * (To be called at end of DMA Tx Abort procedure following user abort request). + * @note When this callback is executed, User Abort complete call back is called only if no + * Abort still ongoing for Rx DMA Handle. + * @param hdma DMA handle. + * @retval None + */ +static void SPI_DMATxAbortCallback(DMA_HandleTypeDef *hdma) +{ + SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); + + hspi->hdmatx->XferAbortCallback = NULL; + + /* Disable Tx DMA Request */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN); + + if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Disable SPI Peripheral */ + __HAL_SPI_DISABLE(hspi); + + /* Empty the FRLVL fifo */ + if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, + HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Check if an Abort process is still ongoing */ + if (hspi->hdmarx != NULL) + { + if (hspi->hdmarx->XferAbortCallback != NULL) + { + return; + } + } + + /* No Abort process still ongoing : All DMA Stream/Channel are aborted, call user Abort Complete callback */ + hspi->RxXferCount = 0U; + hspi->TxXferCount = 0U; + + /* Check no error during Abort procedure */ + if (hspi->ErrorCode != HAL_SPI_ERROR_ABORT) + { + /* Reset errorCode */ + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + } + + /* Clear the Error flags in the SR register */ + __HAL_SPI_CLEAR_OVRFLAG(hspi); + __HAL_SPI_CLEAR_FREFLAG(hspi); + + /* Restore hspi->State to Ready */ + hspi->State = HAL_SPI_STATE_READY; + + /* Call user Abort complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->AbortCpltCallback(hspi); +#else + HAL_SPI_AbortCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA SPI Rx communication abort callback, when initiated by user + * (To be called at end of DMA Rx Abort procedure following user abort request). + * @note When this callback is executed, User Abort complete call back is called only if no + * Abort still ongoing for Tx DMA Handle. + * @param hdma DMA handle. + * @retval None + */ +static void SPI_DMARxAbortCallback(DMA_HandleTypeDef *hdma) +{ + SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); + + /* Disable SPI Peripheral */ + __HAL_SPI_DISABLE(hspi); + + hspi->hdmarx->XferAbortCallback = NULL; + + /* Disable Rx DMA Request */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_RXDMAEN); + + /* Control the BSY flag */ + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Empty the FRLVL fifo */ + if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, + HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Check if an Abort process is still ongoing */ + if (hspi->hdmatx != NULL) + { + if (hspi->hdmatx->XferAbortCallback != NULL) + { + return; + } + } + + /* No Abort process still ongoing : All DMA Stream/Channel are aborted, call user Abort Complete callback */ + hspi->RxXferCount = 0U; + hspi->TxXferCount = 0U; + + /* Check no error during Abort procedure */ + if (hspi->ErrorCode != HAL_SPI_ERROR_ABORT) + { + /* Reset errorCode */ + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + } + + /* Clear the Error flags in the SR register */ + __HAL_SPI_CLEAR_OVRFLAG(hspi); + __HAL_SPI_CLEAR_FREFLAG(hspi); + + /* Restore hspi->State to Ready */ + hspi->State = HAL_SPI_STATE_READY; + + /* Call user Abort complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->AbortCpltCallback(hspi); +#else + HAL_SPI_AbortCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ +} + +/** + * @brief Rx 8-bit handler for Transmit and Receive in Interrupt mode. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_2linesRxISR_8BIT(struct __SPI_HandleTypeDef *hspi) +{ + /* Receive data in packing mode */ + if (hspi->RxXferCount > 1U) + { + *hspi->pRxBuffPtr = *((__IO uint8_t *)&hspi->Instance->DR); + hspi->pRxBuffPtr++; + *hspi->pRxBuffPtr = *((__IO uint8_t *)&hspi->Instance->DR); + hspi->pRxBuffPtr++; + hspi->RxXferCount -= 2U; + if (hspi->RxXferCount == 1U) + { + /* Set RX Fifo threshold according the reception data length: 8bit */ + SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + } + } + /* Receive data in 8 Bit mode */ + else + { + *hspi->pRxBuffPtr = *((__IO uint8_t *)&hspi->Instance->DR); + hspi->pRxBuffPtr++; + hspi->RxXferCount--; + } + + /* Check end of the reception */ + if (hspi->RxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); + hspi->RxISR = SPI_2linesRxISR_8BITCRC; + return; + } +#endif /* USE_SPI_CRC */ + + /* Disable RXNE and ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR)); + + if (hspi->TxXferCount == 0U) + { + SPI_CloseRxTx_ISR(hspi); + } + } +} + +#if (USE_SPI_CRC != 0U) +/** + * @brief Rx 8-bit handler for Transmit and Receive in Interrupt mode. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_2linesRxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi) +{ + __IO uint8_t *ptmpreg8; + __IO uint8_t tmpreg8 = 0; + + /* Initialize the 8bit temporary pointer */ + ptmpreg8 = (__IO uint8_t *)&hspi->Instance->DR; + /* Read 8bit CRC to flush Data Register */ + tmpreg8 = *ptmpreg8; + /* To avoid GCC warning */ + UNUSED(tmpreg8); + + hspi->CRCSize--; + + /* Check end of the reception */ + if (hspi->CRCSize == 0U) + { + /* Disable RXNE and ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR)); + + if (hspi->TxXferCount == 0U) + { + SPI_CloseRxTx_ISR(hspi); + } + } +} +#endif /* USE_SPI_CRC */ + +/** + * @brief Tx 8-bit handler for Transmit and Receive in Interrupt mode. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_2linesTxISR_8BIT(struct __SPI_HandleTypeDef *hspi) +{ + /* Transmit data in 8 Bit mode */ + *(__IO uint8_t *)&hspi->Instance->DR = *((const uint8_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr++; + hspi->TxXferCount--; + + /* Check the end of the transmission */ + if (hspi->TxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + /* Set CRC Next Bit to send CRC */ + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + /* Disable TXE interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE); + return; + } +#endif /* USE_SPI_CRC */ + + /* Disable TXE interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE); + + if (hspi->RxXferCount == 0U) + { + SPI_CloseRxTx_ISR(hspi); + } + } +} + +/** + * @brief Rx 16-bit handler for Transmit and Receive in Interrupt mode. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_2linesRxISR_16BIT(struct __SPI_HandleTypeDef *hspi) +{ + /* Receive data in 16 Bit mode */ + *((uint16_t *)hspi->pRxBuffPtr) = (uint16_t)(hspi->Instance->DR); + hspi->pRxBuffPtr += sizeof(uint16_t); + hspi->RxXferCount--; + + if (hspi->RxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + hspi->RxISR = SPI_2linesRxISR_16BITCRC; + return; + } +#endif /* USE_SPI_CRC */ + + /* Disable RXNE interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE); + + if (hspi->TxXferCount == 0U) + { + SPI_CloseRxTx_ISR(hspi); + } + } +} + +#if (USE_SPI_CRC != 0U) +/** + * @brief Manage the CRC 16-bit receive for Transmit and Receive in Interrupt mode. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_2linesRxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi) +{ + __IO uint32_t tmpreg = 0U; + + /* Read 16bit CRC to flush Data Register */ + tmpreg = READ_REG(hspi->Instance->DR); + /* To avoid GCC warning */ + UNUSED(tmpreg); + + /* Disable RXNE interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE); + + SPI_CloseRxTx_ISR(hspi); +} +#endif /* USE_SPI_CRC */ + +/** + * @brief Tx 16-bit handler for Transmit and Receive in Interrupt mode. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_2linesTxISR_16BIT(struct __SPI_HandleTypeDef *hspi) +{ + /* Transmit data in 16 Bit mode */ + hspi->Instance->DR = *((const uint16_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr += sizeof(uint16_t); + hspi->TxXferCount--; + + /* Enable CRC Transmission */ + if (hspi->TxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + /* Set CRC Next Bit to send CRC */ + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + /* Disable TXE interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE); + return; + } +#endif /* USE_SPI_CRC */ + + /* Disable TXE interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE); + + if (hspi->RxXferCount == 0U) + { + SPI_CloseRxTx_ISR(hspi); + } + } +} + +#if (USE_SPI_CRC != 0U) +/** + * @brief Manage the CRC 8-bit receive in Interrupt context. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_RxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi) +{ + __IO uint8_t *ptmpreg8; + __IO uint8_t tmpreg8 = 0; + + /* Initialize the 8bit temporary pointer */ + ptmpreg8 = (__IO uint8_t *)&hspi->Instance->DR; + /* Read 8bit CRC to flush Data Register */ + tmpreg8 = *ptmpreg8; + /* To avoid GCC warning */ + UNUSED(tmpreg8); + + hspi->CRCSize--; + + if (hspi->CRCSize == 0U) + { + SPI_CloseRx_ISR(hspi); + } +} +#endif /* USE_SPI_CRC */ + +/** + * @brief Manage the receive 8-bit in Interrupt context. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_RxISR_8BIT(struct __SPI_HandleTypeDef *hspi) +{ + *hspi->pRxBuffPtr = (*(__IO uint8_t *)&hspi->Instance->DR); + hspi->pRxBuffPtr++; + hspi->RxXferCount--; + +#if (USE_SPI_CRC != 0U) + /* Enable CRC Transmission */ + if ((hspi->RxXferCount == 1U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + + if (hspi->RxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + hspi->RxISR = SPI_RxISR_8BITCRC; + return; + } +#endif /* USE_SPI_CRC */ + SPI_CloseRx_ISR(hspi); + } +} + +#if (USE_SPI_CRC != 0U) +/** + * @brief Manage the CRC 16-bit receive in Interrupt context. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_RxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi) +{ + __IO uint32_t tmpreg = 0U; + + /* Read 16bit CRC to flush Data Register */ + tmpreg = READ_REG(hspi->Instance->DR); + /* To avoid GCC warning */ + UNUSED(tmpreg); + + /* Disable RXNE and ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR)); + + SPI_CloseRx_ISR(hspi); +} +#endif /* USE_SPI_CRC */ + +/** + * @brief Manage the 16-bit receive in Interrupt context. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_RxISR_16BIT(struct __SPI_HandleTypeDef *hspi) +{ + *((uint16_t *)hspi->pRxBuffPtr) = (uint16_t)(hspi->Instance->DR); + hspi->pRxBuffPtr += sizeof(uint16_t); + hspi->RxXferCount--; + +#if (USE_SPI_CRC != 0U) + /* Enable CRC Transmission */ + if ((hspi->RxXferCount == 1U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + + if (hspi->RxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + hspi->RxISR = SPI_RxISR_16BITCRC; + return; + } +#endif /* USE_SPI_CRC */ + SPI_CloseRx_ISR(hspi); + } +} + +/** + * @brief Handle the data 8-bit transmit in Interrupt mode. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_TxISR_8BIT(struct __SPI_HandleTypeDef *hspi) +{ + *(__IO uint8_t *)&hspi->Instance->DR = *((const uint8_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr++; + hspi->TxXferCount--; + + if (hspi->TxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + /* Enable CRC Transmission */ + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + SPI_CloseTx_ISR(hspi); + } +} + +/** + * @brief Handle the data 16-bit transmit in Interrupt mode. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_TxISR_16BIT(struct __SPI_HandleTypeDef *hspi) +{ + /* Transmit data in 16 Bit mode */ + hspi->Instance->DR = *((const uint16_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr += sizeof(uint16_t); + hspi->TxXferCount--; + + if (hspi->TxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + /* Enable CRC Transmission */ + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + SPI_CloseTx_ISR(hspi); + } +} + +/** + * @brief Handle SPI Communication Timeout. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param Flag SPI flag to check + * @param State flag state to check + * @param Timeout Timeout duration + * @param Tickstart tick start value + * @retval HAL status + */ +static HAL_StatusTypeDef SPI_WaitFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, FlagStatus State, + uint32_t Timeout, uint32_t Tickstart) +{ + __IO uint32_t count; + uint32_t tmp_timeout; + uint32_t tmp_tickstart; + + /* Adjust Timeout value in case of end of transfer */ + tmp_timeout = Timeout - (HAL_GetTick() - Tickstart); + tmp_tickstart = HAL_GetTick(); + + /* Calculate Timeout based on a software loop to avoid blocking issue if Systick is disabled */ + count = tmp_timeout * ((SystemCoreClock * 32U) >> 20U); + + while ((__HAL_SPI_GET_FLAG(hspi, Flag) ? SET : RESET) != State) + { + if (Timeout != HAL_MAX_DELAY) + { + if (((HAL_GetTick() - tmp_tickstart) >= tmp_timeout) || (tmp_timeout == 0U)) + { + /* Disable the SPI and reset the CRC: the CRC value should be cleared + on both master and slave sides in order to resynchronize the master + and slave for their respective CRC calculation */ + + /* Disable TXE, RXNE and ERR interrupts for the interrupt process */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_RXNE | SPI_IT_ERR)); + + if ((hspi->Init.Mode == SPI_MODE_MASTER) && ((hspi->Init.Direction == SPI_DIRECTION_1LINE) + || (hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY))) + { + /* Disable SPI peripheral */ + __HAL_SPI_DISABLE(hspi); + } + + /* Reset CRC Calculation */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SPI_RESET_CRC(hspi); + } + + hspi->State = HAL_SPI_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + + return HAL_TIMEOUT; + } + /* If Systick is disabled or not incremented, deactivate timeout to go in disable loop procedure */ + if (count == 0U) + { + tmp_timeout = 0U; + } + else + { + count--; + } + } + } + + return HAL_OK; +} + +/** + * @brief Handle SPI FIFO Communication Timeout. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param Fifo Fifo to check + * @param State Fifo state to check + * @param Timeout Timeout duration + * @param Tickstart tick start value + * @retval HAL status + */ +static HAL_StatusTypeDef SPI_WaitFifoStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Fifo, uint32_t State, + uint32_t Timeout, uint32_t Tickstart) +{ + __IO uint32_t count; + uint32_t tmp_timeout; + uint32_t tmp_tickstart; + __IO const uint8_t *ptmpreg8; + __IO uint8_t tmpreg8 = 0; + + /* Adjust Timeout value in case of end of transfer */ + tmp_timeout = Timeout - (HAL_GetTick() - Tickstart); + tmp_tickstart = HAL_GetTick(); + + /* Initialize the 8bit temporary pointer */ + ptmpreg8 = (__IO uint8_t *)&hspi->Instance->DR; + + /* Calculate Timeout based on a software loop to avoid blocking issue if Systick is disabled */ + count = tmp_timeout * ((SystemCoreClock * 35U) >> 20U); + + while ((hspi->Instance->SR & Fifo) != State) + { + if ((Fifo == SPI_SR_FRLVL) && (State == SPI_FRLVL_EMPTY)) + { + /* Flush Data Register by a blank read */ + tmpreg8 = *ptmpreg8; + /* To avoid GCC warning */ + UNUSED(tmpreg8); + } + + if (Timeout != HAL_MAX_DELAY) + { + if (((HAL_GetTick() - tmp_tickstart) >= tmp_timeout) || (tmp_timeout == 0U)) + { + /* Disable the SPI and reset the CRC: the CRC value should be cleared + on both master and slave sides in order to resynchronize the master + and slave for their respective CRC calculation */ + + /* Disable TXE, RXNE and ERR interrupts for the interrupt process */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_RXNE | SPI_IT_ERR)); + + if ((hspi->Init.Mode == SPI_MODE_MASTER) && ((hspi->Init.Direction == SPI_DIRECTION_1LINE) + || (hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY))) + { + /* Disable SPI peripheral */ + __HAL_SPI_DISABLE(hspi); + } + + /* Reset CRC Calculation */ + if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SPI_RESET_CRC(hspi); + } + + hspi->State = HAL_SPI_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + + return HAL_TIMEOUT; + } + /* If Systick is disabled or not incremented, deactivate timeout to go in disable loop procedure */ + if (count == 0U) + { + tmp_timeout = 0U; + } + else + { + count--; + } + } + } + + return HAL_OK; +} + +/** + * @brief Handle the check of the RX transaction complete. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param Timeout Timeout duration + * @param Tickstart tick start value + * @retval HAL status + */ +static HAL_StatusTypeDef SPI_EndRxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart) +{ + if ((hspi->Init.Mode == SPI_MODE_MASTER) && ((hspi->Init.Direction == SPI_DIRECTION_1LINE) + || (hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY))) + { + /* Disable SPI peripheral */ + __HAL_SPI_DISABLE(hspi); + } + + /* Control the BSY flag */ + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, Timeout, Tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + return HAL_TIMEOUT; + } + + if ((hspi->Init.Mode == SPI_MODE_MASTER) && ((hspi->Init.Direction == SPI_DIRECTION_1LINE) + || (hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY))) + { + /* Empty the FRLVL fifo */ + if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, Timeout, Tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + return HAL_TIMEOUT; + } + } + return HAL_OK; +} + +/** + * @brief Handle the check of the RXTX or TX transaction complete. + * @param hspi SPI handle + * @param Timeout Timeout duration + * @param Tickstart tick start value + * @retval HAL status + */ +static HAL_StatusTypeDef SPI_EndRxTxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart) +{ + /* Control if the TX fifo is empty */ + if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FTLVL, SPI_FTLVL_EMPTY, Timeout, Tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + return HAL_TIMEOUT; + } + + /* Control the BSY flag */ + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, Timeout, Tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + return HAL_TIMEOUT; + } + + /* Control if the RX fifo is empty */ + if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, Timeout, Tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + return HAL_TIMEOUT; + } + + return HAL_OK; +} + +/** + * @brief Handle the end of the RXTX transaction. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_CloseRxTx_ISR(SPI_HandleTypeDef *hspi) +{ + uint32_t tickstart; + + /* Init tickstart for timeout management */ + tickstart = HAL_GetTick(); + + /* Disable ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR); + + /* Check the end of the transaction */ + if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + } + +#if (USE_SPI_CRC != 0U) + /* Check if CRC error occurred */ + if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET) + { + hspi->State = HAL_SPI_STATE_READY; + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + __HAL_SPI_CLEAR_CRCERRFLAG(hspi); + /* Call user error callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->ErrorCallback(hspi); +#else + HAL_SPI_ErrorCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + } + else + { +#endif /* USE_SPI_CRC */ + if (hspi->ErrorCode == HAL_SPI_ERROR_NONE) + { + if (hspi->State == HAL_SPI_STATE_BUSY_RX) + { + hspi->State = HAL_SPI_STATE_READY; + /* Call user Rx complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->RxCpltCallback(hspi); +#else + HAL_SPI_RxCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + } + else + { + hspi->State = HAL_SPI_STATE_READY; + /* Call user TxRx complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->TxRxCpltCallback(hspi); +#else + HAL_SPI_TxRxCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + } + } + else + { + hspi->State = HAL_SPI_STATE_READY; + /* Call user error callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->ErrorCallback(hspi); +#else + HAL_SPI_ErrorCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + } +#if (USE_SPI_CRC != 0U) + } +#endif /* USE_SPI_CRC */ +} + +/** + * @brief Handle the end of the RX transaction. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_CloseRx_ISR(SPI_HandleTypeDef *hspi) +{ + /* Disable RXNE and ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR)); + + /* Check the end of the transaction */ + if (SPI_EndRxTransaction(hspi, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + } + hspi->State = HAL_SPI_STATE_READY; + +#if (USE_SPI_CRC != 0U) + /* Check if CRC error occurred */ + if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + __HAL_SPI_CLEAR_CRCERRFLAG(hspi); + /* Call user error callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->ErrorCallback(hspi); +#else + HAL_SPI_ErrorCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + } + else + { +#endif /* USE_SPI_CRC */ + if (hspi->ErrorCode == HAL_SPI_ERROR_NONE) + { + /* Call user Rx complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->RxCpltCallback(hspi); +#else + HAL_SPI_RxCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + } + else + { + /* Call user error callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->ErrorCallback(hspi); +#else + HAL_SPI_ErrorCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + } +#if (USE_SPI_CRC != 0U) + } +#endif /* USE_SPI_CRC */ +} + +/** + * @brief Handle the end of the TX transaction. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_CloseTx_ISR(SPI_HandleTypeDef *hspi) +{ + uint32_t tickstart; + + /* Init tickstart for timeout management*/ + tickstart = HAL_GetTick(); + + /* Disable TXE and ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_ERR)); + + /* Check the end of the transaction */ + if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + } + + /* Clear overrun flag in 2 Lines communication mode because received is not read */ + if (hspi->Init.Direction == SPI_DIRECTION_2LINES) + { + __HAL_SPI_CLEAR_OVRFLAG(hspi); + } + + hspi->State = HAL_SPI_STATE_READY; + if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) + { + /* Call user error callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->ErrorCallback(hspi); +#else + HAL_SPI_ErrorCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + } + else + { + /* Call user Rx complete callback */ +#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U) + hspi->TxCpltCallback(hspi); +#else + HAL_SPI_TxCpltCallback(hspi); +#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ + } +} + +/** + * @brief Handle abort a Rx transaction. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_AbortRx_ISR(SPI_HandleTypeDef *hspi) +{ + __IO uint32_t count; + + /* Disable SPI Peripheral */ + __HAL_SPI_DISABLE(hspi); + + count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); + + /* Disable RXNEIE interrupt */ + CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_RXNEIE)); + + /* Check RXNEIE is disabled */ + do + { + if (count == 0U) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); + break; + } + count--; + } while (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXNEIE)); + + /* Control the BSY flag */ + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Empty the FRLVL fifo */ + if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, + HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + hspi->State = HAL_SPI_STATE_ABORT; +} + +/** + * @brief Handle abort a Tx or Rx/Tx transaction. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_AbortTx_ISR(SPI_HandleTypeDef *hspi) +{ + __IO uint32_t count; + + count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); + + /* Disable TXEIE interrupt */ + CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_TXEIE)); + + /* Check TXEIE is disabled */ + do + { + if (count == 0U) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); + break; + } + count--; + } while (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXEIE)); + + if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Disable SPI Peripheral */ + __HAL_SPI_DISABLE(hspi); + + /* Empty the FRLVL fifo */ + if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, + HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Check case of Full-Duplex Mode and disable directly RXNEIE interrupt */ + if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXNEIE)) + { + /* Disable RXNEIE interrupt */ + CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_RXNEIE)); + + /* Check RXNEIE is disabled */ + do + { + if (count == 0U) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); + break; + } + count--; + } while (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXNEIE)); + + /* Control the BSY flag */ + if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + + /* Empty the FRLVL fifo */ + if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, + HAL_GetTick()) != HAL_OK) + { + hspi->ErrorCode = HAL_SPI_ERROR_ABORT; + } + } + hspi->State = HAL_SPI_STATE_ABORT; +} + +/** + * @} + */ + +#endif /* HAL_SPI_MODULE_ENABLED */ + +/** + * @} + */ + +/** + * @} + */ + diff --git a/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_spi_ex.c b/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_spi_ex.c new file mode 100644 index 0000000..a25079c --- /dev/null +++ b/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_spi_ex.c @@ -0,0 +1,112 @@ +/** + ****************************************************************************** + * @file stm32g0xx_hal_spi_ex.c + * @author MCD Application Team + * @brief Extended SPI HAL module driver. + * This file provides firmware functions to manage the following + * SPI peripheral extended functionalities : + * + IO operation functions + * + ****************************************************************************** + * @attention + * + * Copyright (c) 2018 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32g0xx_hal.h" + +/** @addtogroup STM32G0xx_HAL_Driver + * @{ + */ + +/** @defgroup SPIEx SPIEx + * @brief SPI Extended HAL module driver + * @{ + */ +#ifdef HAL_SPI_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private defines -----------------------------------------------------------*/ +/** @defgroup SPIEx_Private_Constants SPIEx Private Constants + * @{ + */ +#define SPI_FIFO_SIZE 4UL +/** + * @} + */ + +/* Private macros ------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Exported functions --------------------------------------------------------*/ + +/** @defgroup SPIEx_Exported_Functions SPIEx Exported Functions + * @{ + */ + +/** @defgroup SPIEx_Exported_Functions_Group1 IO operation functions + * @brief Data transfers functions + * +@verbatim + ============================================================================== + ##### IO operation functions ##### + =============================================================================== + [..] + This subsection provides a set of extended functions to manage the SPI + data transfers. + + (#) Rx data flush function: + (++) HAL_SPIEx_FlushRxFifo() + +@endverbatim + * @{ + */ + +/** + * @brief Flush the RX fifo. + * @param hspi pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for the specified SPI module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SPIEx_FlushRxFifo(const SPI_HandleTypeDef *hspi) +{ + __IO uint32_t tmpreg; + uint8_t count = 0U; + while ((hspi->Instance->SR & SPI_FLAG_FRLVL) != SPI_FRLVL_EMPTY) + { + count++; + tmpreg = hspi->Instance->DR; + UNUSED(tmpreg); /* To avoid GCC warning */ + if (count == SPI_FIFO_SIZE) + { + return HAL_TIMEOUT; + } + } + return HAL_OK; +} + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_SPI_MODULE_ENABLED */ + +/** + * @} + */ + +/** + * @} + */ diff --git a/STM32G030F6P6_Evaluation.ioc b/STM32G030F6P6_Evaluation.ioc index efe424e..5914a6d 100644 --- a/STM32G030F6P6_Evaluation.ioc +++ b/STM32G030F6P6_Evaluation.ioc @@ -106,36 +106,44 @@ Mcu.CPN=STM32G030F6P6TR Mcu.Family=STM32G0 Mcu.IP0=ADC1 Mcu.IP1=DMA +Mcu.IP10=USART2 Mcu.IP2=FREERTOS Mcu.IP3=I2C1 Mcu.IP4=I2C2 Mcu.IP5=NVIC Mcu.IP6=RCC -Mcu.IP7=SYS -Mcu.IP8=TIM1 -Mcu.IP9=USART2 -Mcu.IPNb=10 +Mcu.IP7=SPI1 +Mcu.IP8=SYS +Mcu.IP9=TIM1 +Mcu.IPNb=11 Mcu.Name=STM32G030F6Px Mcu.Package=TSSOP20 Mcu.Pin0=PB8 Mcu.Pin1=PB9 -Mcu.Pin10=PA12 [PA10] -Mcu.Pin11=PA13 -Mcu.Pin12=PA14-BOOT0 -Mcu.Pin13=VP_ADC1_TempSens_Input -Mcu.Pin14=VP_ADC1_Vref_Input -Mcu.Pin15=VP_ADC1_Vbat_Input -Mcu.Pin16=VP_FREERTOS_VS_CMSIS_V1 -Mcu.Pin17=VP_SYS_VS_tim17 +Mcu.Pin10=PA7 +Mcu.Pin11=PA8 +Mcu.Pin12=PA11 [PA9] +Mcu.Pin13=PA12 [PA10] +Mcu.Pin14=PA13 +Mcu.Pin15=PA14-BOOT0 +Mcu.Pin16=PB3 +Mcu.Pin17=PB4 +Mcu.Pin18=PB5 +Mcu.Pin19=PB6 Mcu.Pin2=PC15-OSC32_OUT (PC15) +Mcu.Pin20=VP_ADC1_TempSens_Input +Mcu.Pin21=VP_ADC1_Vref_Input +Mcu.Pin22=VP_ADC1_Vbat_Input +Mcu.Pin23=VP_FREERTOS_VS_CMSIS_V1 +Mcu.Pin24=VP_SYS_VS_tim17 Mcu.Pin3=PA0 Mcu.Pin4=PA1 Mcu.Pin5=PA2 Mcu.Pin6=PA3 Mcu.Pin7=PA4 -Mcu.Pin8=PA8 -Mcu.Pin9=PA11 [PA9] -Mcu.PinsNb=18 +Mcu.Pin8=PA5 +Mcu.Pin9=PA6 +Mcu.PinsNb=25 Mcu.ThirdPartyNb=0 Mcu.UserConstants= Mcu.UserName=STM32G030F6Px @@ -153,6 +161,7 @@ NVIC.I2C1_IRQn=true\:3\:0\:false\:false\:true\:true\:true\:true\:true NVIC.I2C2_IRQn=true\:3\:0\:false\:false\:true\:true\:true\:true\:true NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false NVIC.PendSV_IRQn=true\:3\:0\:false\:false\:false\:true\:false\:false\:false +NVIC.SPI1_IRQn=true\:3\:0\:false\:false\:true\:true\:true\:true\:true NVIC.SVC_IRQn=true\:0\:0\:false\:false\:false\:false\:false\:false\:true NVIC.SavedPendsvIrqHandlerGenerated=true NVIC.SavedSvcallIrqHandlerGenerated=true @@ -189,12 +198,25 @@ PA4.GPIO_Label=ENCODER_S_EXTI4 PA4.GPIO_ModeDefaultEXTI=GPIO_MODE_IT_RISING_FALLING PA4.Locked=true PA4.Signal=GPXTI4 +PA5.Mode=Full_Duplex_Master +PA5.Signal=SPI1_SCK +PA6.Mode=Full_Duplex_Master +PA6.Signal=SPI1_MISO +PA7.Mode=Full_Duplex_Master +PA7.Signal=SPI1_MOSI PA8.GPIOParameters=GPIO_Label PA8.GPIO_Label=BUZZER_PWM_OUT PA8.Locked=true PA8.Signal=S_TIM1_CH1 PB0__PB1__PB2__PA8.StandardMode=true +PB3.GPIOParameters=GPIO_Label +PB3.GPIO_Label=SPI1_CS +PB3.Locked=true +PB3.Signal=GPIO_Output PB3__PB4__PB5__PB6.StandardMode=true +PB4.Locked=true +PB5.Locked=true +PB6.Locked=true PB7__PB8.StandardMode=true PB8.Mode=I2C PB8.Signal=I2C1_SCL @@ -250,7 +272,7 @@ ProjectManager.ToolChainLocation= ProjectManager.UAScriptAfterPath= ProjectManager.UAScriptBeforePath= ProjectManager.UnderRoot=false -ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_DMA_Init-DMA-false-HAL-true,4-MX_USART2_UART_Init-USART2-false-HAL-true,5-MX_TIM1_Init-TIM1-false-HAL-true,6-MX_I2C1_Init-I2C1-false-HAL-true,7-MX_I2C2_Init-I2C2-false-HAL-true +ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_DMA_Init-DMA-false-HAL-true,4-MX_USART2_UART_Init-USART2-false-HAL-true,5-MX_TIM1_Init-TIM1-false-HAL-true,6-MX_I2C1_Init-I2C1-false-HAL-true,7-MX_I2C2_Init-I2C2-false-HAL-true,8-MX_ADC1_Init-ADC1-false-HAL-true RCC.ADCFreq_Value=64000000 RCC.AHBFreq_Value=64000000 RCC.APBFreq_Value=64000000 @@ -285,6 +307,11 @@ SH.GPXTI4.0=GPIO_EXTI4 SH.GPXTI4.ConfNb=1 SH.S_TIM1_CH1.0=TIM1_CH1,PWM Generation1 CH1 SH.S_TIM1_CH1.ConfNb=1 +SPI1.CalculateBaudRate=32.0 MBits/s +SPI1.Direction=SPI_DIRECTION_2LINES +SPI1.IPParameters=VirtualType,Mode,Direction,CalculateBaudRate +SPI1.Mode=SPI_MODE_MASTER +SPI1.VirtualType=VM_MASTER TIM1.AutoReloadPreload=TIM_AUTORELOAD_PRELOAD_ENABLE TIM1.Channel-PWM\ Generation1\ CH1=TIM_CHANNEL_1 TIM1.IPParameters=Channel-PWM Generation1 CH1,Prescaler,Period,AutoReloadPreload