summaryrefslogtreecommitdiff
path: root/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.c
diff options
context:
space:
mode:
Diffstat (limited to 'Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.c')
-rw-r--r--Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.c4576
1 files changed, 2298 insertions, 2278 deletions
diff --git a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.c b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.c
index c3b7fb7..481a52f 100644
--- a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.c
+++ b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.c
@@ -1,2278 +1,2298 @@
-/**
- ******************************************************************************
- * @file stm32f4xx_hal_spi.c
- * @author MCD Application Team
- * @version V1.1.0
- * @date 19-June-2014
- * @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
- @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
- (+++) Enable the DMAx interface clock using
- (+++) Configure the DMA handle parameters
- (+++) Configure the DMA Tx or Rx Stream
- (+++) Associate the initilalized hdma_tx 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
-
- (#) Program the Mode, Direction , 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 customed 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
-
-
-
- @endverbatim
- ******************************************************************************
- * @attention
- *
- * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- ******************************************************************************
- */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f4xx_hal.h"
-
-/** @addtogroup STM32F4xx_HAL_Driver
- * @{
- */
-
-/** @defgroup SPI
- * @brief SPI HAL module driver
- * @{
- */
-
-#ifdef HAL_SPI_MODULE_ENABLED
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-#define SPI_TIMEOUT_VALUE 10
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-static void SPI_TxCloseIRQHandler(SPI_HandleTypeDef *hspi);
-static void SPI_TxISR(SPI_HandleTypeDef *hspi);
-static void SPI_RxCloseIRQHandler(SPI_HandleTypeDef *hspi);
-static void SPI_2LinesRxISR(SPI_HandleTypeDef *hspi);
-static void SPI_RxISR(SPI_HandleTypeDef *hspi);
-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 HAL_StatusTypeDef SPI_WaitOnFlagUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
-
-/* Private functions ---------------------------------------------------------*/
-
-/** @defgroup SPI_Private_Functions
- * @{
- */
-
-/** @defgroup SPI_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-initialiaze 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
-
- (+) Call the function HAL_SPI_DeInit() to restore the default configuration
- of the selected SPIx periperal.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Initializes the SPI according to the specified parameters
- * in the SPI_InitTypeDef and create 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)
-{
- /* Check the SPI handle allocation */
- if(hspi == NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_SPI_MODE(hspi->Init.Mode));
- assert_param(IS_SPI_DIRECTION_MODE(hspi->Init.Direction));
- assert_param(IS_SPI_DATASIZE(hspi->Init.DataSize));
- assert_param(IS_SPI_CPOL(hspi->Init.CLKPolarity));
- assert_param(IS_SPI_CPHA(hspi->Init.CLKPhase));
- assert_param(IS_SPI_NSS(hspi->Init.NSS));
- 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));
- assert_param(IS_SPI_CRC_CALCULATION(hspi->Init.CRCCalculation));
- assert_param(IS_SPI_CRC_POLYNOMIAL(hspi->Init.CRCPolynomial));
-
- if(hspi->State == HAL_SPI_STATE_RESET)
- {
- /* Init the low level hardware : GPIO, CLOCK, NVIC... */
- HAL_SPI_MspInit(hspi);
- }
-
- hspi->State = HAL_SPI_STATE_BUSY;
-
- /* Disble the selected SPI peripheral */
- __HAL_SPI_DISABLE(hspi);
-
- /*----------------------- SPIx CR1 & CR2 Configuration ---------------------*/
- /* Configure : SPI Mode, Communication Mode, Data size, Clock polarity and phase, NSS management,
- Communication speed, First bit and CRC calculation state */
- hspi->Instance->CR1 = (hspi->Init.Mode | hspi->Init.Direction | hspi->Init.DataSize |
- hspi->Init.CLKPolarity | hspi->Init.CLKPhase | (hspi->Init.NSS & SPI_CR1_SSM) |
- hspi->Init.BaudRatePrescaler | hspi->Init.FirstBit | hspi->Init.CRCCalculation);
-
- /* Configure : NSS management */
- hspi->Instance->CR2 = (((hspi->Init.NSS >> 16) & SPI_CR2_SSOE) | hspi->Init.TIMode);
-
- /*---------------------------- SPIx CRCPOLY Configuration ------------------*/
- /* Configure : CRC Polynomial */
- hspi->Instance->CRCPR = hspi->Init.CRCPolynomial;
-
- /* Activate the SPI mode (Make sure that I2SMOD bit in I2SCFGR register is reset) */
- hspi->Instance->I2SCFGR &= (uint32_t)(~SPI_I2SCFGR_I2SMOD);
-
- hspi->ErrorCode = HAL_SPI_ERROR_NONE;
- hspi->State = HAL_SPI_STATE_READY;
-
- return HAL_OK;
-}
-
-/**
- * @brief DeInitializes 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;
- }
-
- /* Disable the SPI Peripheral Clock */
- __HAL_SPI_DISABLE(hspi);
-
- /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */
- HAL_SPI_MspDeInit(hspi);
-
- hspi->ErrorCode = HAL_SPI_ERROR_NONE;
- hspi->State = HAL_SPI_STATE_RESET;
-
- /* Release Lock */
- __HAL_UNLOCK(hspi);
-
- return HAL_OK;
-}
-
-/**
- * @brief SPI MSP Init
- * @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)
- {
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_SPI_MspInit could be implenetd in the user file
- */
-}
-
-/**
- * @brief SPI MSP DeInit
- * @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)
-{
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_SPI_MspDeInit could be implenetd in the user file
- */
-}
-
-/**
- * @}
- */
-
-/** @defgroup SPI_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 respectivelly at the end of the transmit or Receive process
- The HAL_SPI_ErrorCallback()user callback will be executed when a communication error is detected
-
- (#) Blocking mode APIs are :
- (++) HAL_SPI_Transmit()in 1Line (simplex) and 2Lines (full duplex) mode
- (++) HAL_SPI_Receive() in 1Line (simplex) and 2Lines (full duplex) mode
- (++) HAL_SPI_TransmitReceive() in full duplex mode
-
- (#) Non Blocking mode API's with Interrupt are :
- (++) HAL_SPI_Transmit_IT()in 1Line (simplex) and 2Lines (full duplex) mode
- (++) HAL_SPI_Receive_IT() in 1Line (simplex) and 2Lines (full duplex) mode
- (++) HAL_SPI_TransmitReceive_IT()in full duplex mode
- (++) HAL_SPI_IRQHandler()
-
- (#) Non Blocking mode functions with DMA are :
- (++) HAL_SPI_Transmit_DMA()in 1Line (simplex) and 2Lines (full duplex) mode
- (++) HAL_SPI_Receive_DMA() in 1Line (simplex) and 2Lines (full duplex) mode
- (++) HAL_SPI_TransmitReceie_DMA() in full duplex mode
-
- (#) A set of Transfer Complete Callbacks are provided in non Blocking mode:
- (++) HAL_SPI_TxCpltCallback()
- (++) HAL_SPI_RxCpltCallback()
- (++) HAL_SPI_ErrorCallback()
- (++) HAL_SPI_TxRxCpltCallback()
-
-@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
- * @param Size: amount of data to be sent
- * @param Timeout: Timeout duration
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_SPI_Transmit(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout)
-{
-
- if(hspi->State == HAL_SPI_STATE_READY)
- {
- if((pData == NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction));
-
- /* Process Locked */
- __HAL_LOCK(hspi);
-
- /* Configure communication */
- hspi->State = HAL_SPI_STATE_BUSY_TX;
- hspi->ErrorCode = HAL_SPI_ERROR_NONE;
-
- hspi->pTxBuffPtr = pData;
- hspi->TxXferSize = Size;
- hspi->TxXferCount = Size;
-
- /*Init field not used in handle to zero */
- hspi->TxISR = 0;
- hspi->RxISR = 0;
- hspi->RxXferSize = 0;
- hspi->RxXferCount = 0;
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- __HAL_SPI_RESET_CRC(hspi);
- }
-
- if(hspi->Init.Direction == SPI_DIRECTION_1LINE)
- {
- /* Configure communication direction : 1Line */
- __HAL_SPI_1LINE_TX(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);
- }
-
- /* Transmit data in 8 Bit mode */
- if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
- {
- if((hspi->Init.Mode == SPI_MODE_SLAVE)|| (hspi->TxXferCount == 0x01))
- {
- hspi->Instance->DR = (*hspi->pTxBuffPtr++);
- hspi->TxXferCount--;
- }
- while(hspi->TxXferCount > 0)
- {
- /* Wait until TXE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- hspi->Instance->DR = (*hspi->pTxBuffPtr++);
- hspi->TxXferCount--;
- }
- /* Enable CRC Transmission */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
- }
- }
- /* Transmit data in 16 Bit mode */
- else
- {
- if((hspi->Init.Mode == SPI_MODE_SLAVE) || (hspi->TxXferCount == 0x01))
- {
- hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr);
- hspi->pTxBuffPtr+=2;
- hspi->TxXferCount--;
- }
- while(hspi->TxXferCount > 0)
- {
- /* Wait until TXE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr);
- hspi->pTxBuffPtr+=2;
- hspi->TxXferCount--;
- }
- /* Enable CRC Transmission */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
- }
- }
-
- /* Wait until TXE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- return HAL_TIMEOUT;
- }
-
- /* Wait until Busy flag is reset before disabling SPI */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_BSY, SET, Timeout) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- return HAL_TIMEOUT;
- }
-
- /* Clear OVERUN 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);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @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
- * @param Size: amount of data to be sent
- * @param Timeout: Timeout duration
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_SPI_Receive(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout)
-{
- __IO uint16_t tmpreg;
- uint32_t tmp = 0;
-
- if(hspi->State == HAL_SPI_STATE_READY)
- {
- if((pData == NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hspi);
-
- /* Configure communication */
- hspi->State = HAL_SPI_STATE_BUSY_RX;
- hspi->ErrorCode = HAL_SPI_ERROR_NONE;
-
- hspi->pRxBuffPtr = pData;
- hspi->RxXferSize = Size;
- hspi->RxXferCount = Size;
-
- /*Init field not used in handle to zero */
- hspi->RxISR = 0;
- hspi->TxISR = 0;
- hspi->TxXferSize = 0;
- hspi->TxXferCount = 0;
-
- /* Configure communication direction : 1Line */
- if(hspi->Init.Direction == SPI_DIRECTION_1LINE)
- {
- __HAL_SPI_1LINE_RX(hspi);
- }
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- __HAL_SPI_RESET_CRC(hspi);
- }
-
- if((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES))
- {
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
-
- /* 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);
- }
-
- /* 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)
- {
- while(hspi->RxXferCount > 1)
- {
- /* Wait until RXNE flag is set */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
- hspi->RxXferCount--;
- }
- /* Enable CRC Transmission */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
- }
- }
- /* Receive data in 16 Bit mode */
- else
- {
- while(hspi->RxXferCount > 1)
- {
- /* Wait until RXNE flag is set to read data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
- hspi->pRxBuffPtr+=2;
- hspi->RxXferCount--;
- }
- /* Enable CRC Transmission */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
- }
- }
-
- /* Wait until RXNE flag is set */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- /* Receive last data in 8 Bit mode */
- if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
- {
- (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
- }
- /* Receive last data in 16 Bit mode */
- else
- {
- *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
- hspi->pRxBuffPtr+=2;
- }
- hspi->RxXferCount--;
-
- /* Wait until RXNE flag is set: CRC Received */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
- return HAL_TIMEOUT;
- }
-
- /* Read CRC to Flush RXNE flag */
- tmpreg = hspi->Instance->DR;
- }
-
- 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);
- }
-
- hspi->State = HAL_SPI_STATE_READY;
-
- tmp = __HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR);
- /* Check if CRC error occurred */
- if((hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED) && (tmp != RESET))
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
-
- /* Reset CRC Calculation */
- __HAL_SPI_RESET_CRC(hspi);
-
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
-
- return HAL_ERROR;
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @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
- * @param pRxData: pointer to reception data buffer to be
- * @param Size: amount of data to be sent
- * @param Timeout: Timeout duration
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_SPI_TransmitReceive(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout)
-{
- __IO uint16_t tmpreg;
- uint32_t tmpstate = 0, tmp = 0;
-
- tmpstate = hspi->State;
- if((tmpstate == HAL_SPI_STATE_READY) || (tmpstate == HAL_SPI_STATE_BUSY_RX))
- {
- if((pTxData == NULL ) || (pRxData == NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction));
-
- /* Process Locked */
- __HAL_LOCK(hspi);
-
- /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */
- if(hspi->State == HAL_SPI_STATE_READY)
- {
- hspi->State = HAL_SPI_STATE_BUSY_TX_RX;
- }
-
- /* Configure communication */
- hspi->ErrorCode = HAL_SPI_ERROR_NONE;
-
- hspi->pRxBuffPtr = pRxData;
- hspi->RxXferSize = Size;
- hspi->RxXferCount = Size;
-
- hspi->pTxBuffPtr = pTxData;
- hspi->TxXferSize = Size;
- hspi->TxXferCount = Size;
-
- /*Init field not used in handle to zero */
- hspi->RxISR = 0;
- hspi->TxISR = 0;
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- __HAL_SPI_RESET_CRC(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);
- }
-
- /* Transmit and Receive data in 16 Bit mode */
- if(hspi->Init.DataSize == SPI_DATASIZE_16BIT)
- {
- if((hspi->Init.Mode == SPI_MODE_SLAVE) || ((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->TxXferCount == 0x01)))
- {
- hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr);
- hspi->pTxBuffPtr+=2;
- hspi->TxXferCount--;
- }
- if(hspi->TxXferCount == 0)
- {
- /* Enable CRC Transmission */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
- }
-
- /* Wait until RXNE flag is set */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
- hspi->pRxBuffPtr+=2;
- hspi->RxXferCount--;
- }
- else
- {
- while(hspi->TxXferCount > 0)
- {
- /* Wait until TXE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr);
- hspi->pTxBuffPtr+=2;
- hspi->TxXferCount--;
-
- /* Enable CRC Transmission */
- if((hspi->TxXferCount == 0) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED))
- {
- hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
- }
-
- /* Wait until RXNE flag is set */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
- hspi->pRxBuffPtr+=2;
- hspi->RxXferCount--;
- }
- /* Receive the last byte */
- if(hspi->Init.Mode == SPI_MODE_SLAVE)
- {
- /* Wait until RXNE flag is set */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
- hspi->pRxBuffPtr+=2;
- hspi->RxXferCount--;
- }
- }
- }
- /* Transmit and Receive data in 8 Bit mode */
- else
- {
- if((hspi->Init.Mode == SPI_MODE_SLAVE) || ((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->TxXferCount == 0x01)))
- {
- hspi->Instance->DR = (*hspi->pTxBuffPtr++);
- hspi->TxXferCount--;
- }
- if(hspi->TxXferCount == 0)
- {
- /* Enable CRC Transmission */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
- }
-
- /* Wait until RXNE flag is set */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- (*hspi->pRxBuffPtr) = hspi->Instance->DR;
- hspi->RxXferCount--;
- }
- else
- {
- while(hspi->TxXferCount > 0)
- {
- /* Wait until TXE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- hspi->Instance->DR = (*hspi->pTxBuffPtr++);
- hspi->TxXferCount--;
-
- /* Enable CRC Transmission */
- if((hspi->TxXferCount == 0) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED))
- {
- hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
- }
-
- /* Wait until RXNE flag is set */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
- hspi->RxXferCount--;
- }
- if(hspi->Init.Mode == SPI_MODE_SLAVE)
- {
- /* Wait until RXNE flag is set */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
- hspi->RxXferCount--;
- }
- }
- }
-
- /* Read CRC from DR to close CRC calculation process */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- /* Wait until RXNE flag is set */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
- return HAL_TIMEOUT;
- }
- /* Read CRC */
- tmpreg = hspi->Instance->DR;
- }
-
- /* Wait until Busy flag is reset before disabling SPI */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_BSY, SET, Timeout) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- return HAL_TIMEOUT;
- }
-
- hspi->State = HAL_SPI_STATE_READY;
-
- tmp = __HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR);
- /* Check if CRC error occurred */
- if((hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED) && (tmp != RESET))
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- __HAL_SPI_RESET_CRC(hspi);
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
-
- return HAL_ERROR;
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Transmit an amount of data in no-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
- * @param Size: amount of data to be sent
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_SPI_Transmit_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size)
-{
- if(hspi->State == HAL_SPI_STATE_READY)
- {
- if((pData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction));
-
- /* Process Locked */
- __HAL_LOCK(hspi);
-
- /* Configure communication */
- hspi->State = HAL_SPI_STATE_BUSY_TX;
- hspi->ErrorCode = HAL_SPI_ERROR_NONE;
-
- hspi->TxISR = &SPI_TxISR;
- hspi->pTxBuffPtr = pData;
- hspi->TxXferSize = Size;
- hspi->TxXferCount = Size;
-
- /*Init field not used in handle to zero */
- hspi->RxISR = 0;
- hspi->RxXferSize = 0;
- hspi->RxXferCount = 0;
-
- /* Configure communication direction : 1Line */
- if(hspi->Init.Direction == SPI_DIRECTION_1LINE)
- {
- __HAL_SPI_1LINE_TX(hspi);
- }
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- __HAL_SPI_RESET_CRC(hspi);
- }
-
- if (hspi->Init.Direction == SPI_DIRECTION_2LINES)
- {
- __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE));
- }else
- {
- /* Enable TXE and ERR interrupt */
- __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_ERR));
- }
- /* Process Unlocked */
- __HAL_UNLOCK(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);
- }
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Receive an amount of data in no-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
- * @param Size: amount of data to be sent
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_SPI_Receive_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size)
-{
- if(hspi->State == HAL_SPI_STATE_READY)
- {
- if((pData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hspi);
-
- /* Configure communication */
- hspi->State = HAL_SPI_STATE_BUSY_RX;
- hspi->ErrorCode = HAL_SPI_ERROR_NONE;
-
- hspi->RxISR = &SPI_RxISR;
- hspi->pRxBuffPtr = pData;
- hspi->RxXferSize = Size;
- hspi->RxXferCount = Size ;
-
- /*Init field not used in handle to zero */
- hspi->TxISR = 0;
- hspi->TxXferSize = 0;
- hspi->TxXferCount = 0;
-
- /* Configure communication direction : 1Line */
- if(hspi->Init.Direction == SPI_DIRECTION_1LINE)
- {
- __HAL_SPI_1LINE_RX(hspi);
- }
- else if((hspi->Init.Direction == SPI_DIRECTION_2LINES) && (hspi->Init.Mode == SPI_MODE_MASTER))
- {
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
-
- /* 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);
- }
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- __HAL_SPI_RESET_CRC(hspi);
- }
-
- /* Enable TXE and ERR interrupt */
- __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR));
-
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
-
- /* 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);
- }
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Transmit and Receive an amount of data in no-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
- * @param pRxData: pointer to reception data buffer to be
- * @param Size: amount of data to be sent
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_SPI_TransmitReceive_IT(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size)
-{
- uint32_t tmpstate = 0;
-
- tmpstate = hspi->State;
- if((tmpstate == HAL_SPI_STATE_READY) || \
- ((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && (tmpstate == HAL_SPI_STATE_BUSY_RX)))
- {
- if((pTxData == NULL ) || (pRxData == NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction));
-
- /* 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;
- }
-
- /* Configure communication */
- hspi->ErrorCode = HAL_SPI_ERROR_NONE;
-
- hspi->TxISR = &SPI_TxISR;
- hspi->pTxBuffPtr = pTxData;
- hspi->TxXferSize = Size;
- hspi->TxXferCount = Size;
-
- hspi->RxISR = &SPI_2LinesRxISR;
- hspi->pRxBuffPtr = pRxData;
- hspi->RxXferSize = Size;
- hspi->RxXferCount = Size;
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- __HAL_SPI_RESET_CRC(hspi);
- }
-
- /* Enable TXE, RXNE and ERR interrupt */
- __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_RXNE | SPI_IT_ERR));
-
- /* Process Unlocked */
- __HAL_UNLOCK(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);
- }
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Transmit an amount of data in no-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
- * @param Size: amount of data to be sent
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_SPI_Transmit_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size)
-{
- if(hspi->State == HAL_SPI_STATE_READY)
- {
- if((pData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction));
-
- /* Process Locked */
- __HAL_LOCK(hspi);
-
- /* Configure communication */
- hspi->State = HAL_SPI_STATE_BUSY_TX;
- hspi->ErrorCode = HAL_SPI_ERROR_NONE;
-
- hspi->pTxBuffPtr = pData;
- hspi->TxXferSize = Size;
- hspi->TxXferCount = Size;
-
- /*Init field not used in handle to zero */
- hspi->TxISR = 0;
- hspi->RxISR = 0;
- hspi->RxXferSize = 0;
- hspi->RxXferCount = 0;
-
- /* Configure communication direction : 1Line */
- if(hspi->Init.Direction == SPI_DIRECTION_1LINE)
- {
- __HAL_SPI_1LINE_TX(hspi);
- }
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- __HAL_SPI_RESET_CRC(hspi);
- }
-
- /* 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;
-
- /* Enable the Tx DMA Stream */
- HAL_DMA_Start_IT(hspi->hdmatx, (uint32_t)hspi->pTxBuffPtr, (uint32_t)&hspi->Instance->DR, hspi->TxXferCount);
-
- /* Enable Tx DMA Request */
- hspi->Instance->CR2 |= SPI_CR2_TXDMAEN;
-
- /* Process Unlocked */
- __HAL_UNLOCK(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);
- }
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Receive an amount of data in no-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
- * @note When the CRC feature is enabled the pData Length must be Size + 1.
- * @param Size: amount of data to be sent
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_SPI_Receive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size)
-{
- if(hspi->State == HAL_SPI_STATE_READY)
- {
- if((pData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(hspi);
-
- /* Configure communication */
- hspi->State = HAL_SPI_STATE_BUSY_RX;
- hspi->ErrorCode = HAL_SPI_ERROR_NONE;
-
- hspi->pRxBuffPtr = pData;
- hspi->RxXferSize = Size;
- hspi->RxXferCount = Size;
-
- /*Init field not used in handle to zero */
- hspi->RxISR = 0;
- hspi->TxISR = 0;
- hspi->TxXferSize = 0;
- hspi->TxXferCount = 0;
-
- /* Configure communication direction : 1Line */
- if(hspi->Init.Direction == SPI_DIRECTION_1LINE)
- {
- __HAL_SPI_1LINE_RX(hspi);
- }
- else if((hspi->Init.Direction == SPI_DIRECTION_2LINES)&&(hspi->Init.Mode == SPI_MODE_MASTER))
- {
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
-
- /* 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);
- }
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- __HAL_SPI_RESET_CRC(hspi);
- }
-
- /* 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;
-
- /* Enable the Rx DMA Stream */
- HAL_DMA_Start_IT(hspi->hdmarx, (uint32_t)&hspi->Instance->DR, (uint32_t)hspi->pRxBuffPtr, hspi->RxXferCount);
-
- /* Enable Rx DMA Request */
- hspi->Instance->CR2 |= SPI_CR2_RXDMAEN;
-
- /* Process Unlocked */
- __HAL_UNLOCK(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);
- }
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Transmit and Receive an amount of data in no-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
- * @param pRxData: pointer to reception data buffer
- * @note When the CRC feature is enabled the pRxData Length must be Size + 1
- * @param Size: amount of data to be sent
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_SPI_TransmitReceive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size)
-{
- uint32_t tmpstate = 0;
- tmpstate = hspi->State;
- if((tmpstate == HAL_SPI_STATE_READY) || ((hspi->Init.Mode == SPI_MODE_MASTER) && \
- (hspi->Init.Direction == SPI_DIRECTION_2LINES) && (tmpstate == HAL_SPI_STATE_BUSY_RX)))
- {
- if((pTxData == NULL ) || (pRxData == NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction));
-
- /* 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;
- }
-
- /* Configure communication */
- hspi->ErrorCode = HAL_SPI_ERROR_NONE;
-
- hspi->pTxBuffPtr = (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 = 0;
- hspi->TxISR = 0;
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- __HAL_SPI_RESET_CRC(hspi);
- }
-
- /* 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;
-
- /* Enable the Rx DMA Stream */
- HAL_DMA_Start_IT(hspi->hdmarx, (uint32_t)&hspi->Instance->DR, (uint32_t)hspi->pRxBuffPtr, hspi->RxXferCount);
-
- /* Enable Rx DMA Request */
- 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->XferCpltCallback = NULL;
-
- /* Set the DMA error callback */
- hspi->hdmatx->XferErrorCallback = SPI_DMAError;
-
- /* Enable the Tx DMA Stream */
- HAL_DMA_Start_IT(hspi->hdmatx, (uint32_t)hspi->pTxBuffPtr, (uint32_t)&hspi->Instance->DR, hspi->TxXferCount);
-
- /* Check if the SPI is already enabled */
- if((hspi->Instance->CR1 &SPI_CR1_SPE) != SPI_CR1_SPE)
- {
- /* Enable SPI peripheral */
- __HAL_SPI_ENABLE(hspi);
- }
-
- /* Enable Tx DMA Request */
- hspi->Instance->CR2 |= SPI_CR2_TXDMAEN;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-
-/**
- * @brief Pauses 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 */
- hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
- hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_RXDMAEN);
-
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
-
- return HAL_OK;
-}
-
-/**
- * @brief Resumes 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 */
- hspi->Instance->CR2 |= SPI_CR2_TXDMAEN;
- hspi->Instance->CR2 |= SPI_CR2_RXDMAEN;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
-
- return HAL_OK;
-}
-
-/**
- * @brief Stops the DMA Transfer.
- * @param huart: pointer to a UART_HandleTypeDef structure that contains
- * the configuration information for the specified UART module.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_SPI_DMAStop(SPI_HandleTypeDef *hspi)
-{
- /* 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 */
- if(hspi->hdmatx != NULL)
- {
- HAL_DMA_Abort(hspi->hdmatx);
- }
- /* Abort the SPI DMA rx Stream */
- if(hspi->hdmarx != NULL)
- {
- HAL_DMA_Abort(hspi->hdmarx);
- }
-
- /* Disable the SPI DMA Tx & Rx requests */
- hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
- hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_RXDMAEN);
-
- hspi->State = HAL_SPI_STATE_READY;
-
- return HAL_OK;
-}
-
-/**
- * @brief This function handles SPI interrupt request.
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval HAL status
- */
-void HAL_SPI_IRQHandler(SPI_HandleTypeDef *hspi)
-{
- uint32_t tmp1 = 0, tmp2 = 0, tmp3 = 0;
-
- tmp1 = __HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE);
- tmp2 = __HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_RXNE);
- tmp3 = __HAL_SPI_GET_FLAG(hspi, SPI_FLAG_OVR);
- /* SPI in mode Receiver and Overrun not occurred ---------------------------*/
- if((tmp1 != RESET) && (tmp2 != RESET) && (tmp3 == RESET))
- {
- hspi->RxISR(hspi);
- return;
- }
-
- tmp1 = __HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE);
- tmp2 = __HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_TXE);
- /* SPI in mode Tramitter ---------------------------------------------------*/
- if((tmp1 != RESET) && (tmp2 != RESET))
- {
- hspi->TxISR(hspi);
- return;
- }
-
- if(__HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_ERR) != RESET)
- {
- /* SPI CRC error interrupt occurred ---------------------------------------*/
- if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
- __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
- }
- /* SPI Mode Fault error interrupt occurred --------------------------------*/
- if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_MODF) != RESET)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_MODF;
- __HAL_SPI_CLEAR_MODFFLAG(hspi);
- }
-
- /* SPI Overrun error interrupt occurred -----------------------------------*/
- if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_OVR) != RESET)
- {
- if(hspi->State != HAL_SPI_STATE_BUSY_TX)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_OVR;
- __HAL_SPI_CLEAR_OVRFLAG(hspi);
- }
- }
-
- /* SPI Frame error interrupt occurred -------------------------------------*/
- if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_FRE) != RESET)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FRE;
- __HAL_SPI_CLEAR_FREFLAG(hspi);
- }
-
- /* Call the Error call Back in case of Errors */
- if(hspi->ErrorCode!=HAL_SPI_ERROR_NONE)
- {
- hspi->State = HAL_SPI_STATE_READY;
- HAL_SPI_ErrorCallback(hspi);
- }
- }
-}
-
-/**
- * @brief Tx Transfer completed callbacks
- * @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)
-{
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_SPI_TxCpltCallback could be implenetd in the user file
- */
-}
-
-/**
- * @brief Rx Transfer completed callbacks
- * @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)
-{
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_SPI_RxCpltCallback() could be implenetd in the user file
- */
-}
-
-/**
- * @brief Tx and Rx Transfer completed callbacks
- * @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)
-{
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_SPI_TxRxCpltCallback() could be implenetd in the user file
- */
-}
-
-/**
- * @brief Tx Half Transfer completed callbacks
- * @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)
-{
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_SPI_TxHalfCpltCallback could be implenetd in the user file
- */
-}
-
-/**
- * @brief Rx Half Transfer completed callbacks
- * @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)
-{
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_SPI_RxHalfCpltCallback() could be implenetd in the user file
- */
-}
-
-/**
- * @brief Tx and Rx Transfer completed callbacks
- * @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)
-{
- /* NOTE : This function Should not be modified, when the callback is needed,
- the HAL_SPI_TxRxHalfCpltCallback() could be implenetd in the user file
- */
-}
-
-/**
- * @brief SPI error callbacks
- * @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)
-{
- /* NOTE : - This function Should not be modified, when the callback is needed,
- the HAL_SPI_ErrorCallback() could be implenetd in the user file.
- - 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.
- */
-}
-
-/**
- * @}
- */
-
-/** @defgroup SPI_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 state
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval HAL state
- */
-HAL_SPI_StateTypeDef HAL_SPI_GetState(SPI_HandleTypeDef *hspi)
-{
- 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
- */
-HAL_SPI_ErrorTypeDef HAL_SPI_GetError(SPI_HandleTypeDef *hspi)
-{
- return hspi->ErrorCode;
-}
-
-/**
- * @}
- */
-
- /**
- * @brief Interrupt Handler to close Tx transfer
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval void
- */
-static void SPI_TxCloseIRQHandler(SPI_HandleTypeDef *hspi)
-{
- /* Wait until TXE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- }
-
- /* Disable TXE interrupt */
- __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE ));
-
- /* Disable ERR interrupt if Receive process is finished */
- if(__HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_RXNE) == RESET)
- {
- __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_ERR));
-
- /* Wait until Busy flag is reset before disabling SPI */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_BSY, SET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- }
-
- /* Clear OVERUN flag in 2 Lines communication mode because received is not read */
- if(hspi->Init.Direction == SPI_DIRECTION_2LINES)
- {
- __HAL_SPI_CLEAR_OVRFLAG(hspi);
- }
-
- /* Check if Errors has been detected during transfer */
- if(hspi->ErrorCode == HAL_SPI_ERROR_NONE)
- {
- /* Check if we are in Tx or in Rx/Tx Mode */
- if(hspi->State == HAL_SPI_STATE_BUSY_TX_RX)
- {
- /* Set state to READY before run the Callback Complete */
- hspi->State = HAL_SPI_STATE_READY;
- HAL_SPI_TxRxCpltCallback(hspi);
- }
- else
- {
- /* Set state to READY before run the Callback Complete */
- hspi->State = HAL_SPI_STATE_READY;
- HAL_SPI_TxCpltCallback(hspi);
- }
- }
- else
- {
- /* Set state to READY before run the Callback Complete */
- hspi->State = HAL_SPI_STATE_READY;
- /* Call Error call back in case of Error */
- HAL_SPI_ErrorCallback(hspi);
- }
- }
-}
-
-/**
- * @brief Interrupt Handler to transmit amount of data in no-blocking mode
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval void
- */
-static void SPI_TxISR(SPI_HandleTypeDef *hspi)
-{
- /* Transmit data in 8 Bit mode */
- if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
- {
- hspi->Instance->DR = (*hspi->pTxBuffPtr++);
- }
- /* Transmit data in 16 Bit mode */
- else
- {
- hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr);
- hspi->pTxBuffPtr+=2;
- }
- hspi->TxXferCount--;
-
- if(hspi->TxXferCount == 0)
- {
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- /* calculate and transfer CRC on Tx line */
- hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
- }
- SPI_TxCloseIRQHandler(hspi);
- }
-}
-
-/**
- * @brief Interrupt Handler to close Rx transfer
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval void
- */
-static void SPI_RxCloseIRQHandler(SPI_HandleTypeDef *hspi)
-{
- __IO uint16_t tmpreg;
-
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- /* Wait until RXNE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- }
-
- /* Read CRC to reset RXNE flag */
- tmpreg = hspi->Instance->DR;
-
- /* Wait until RXNE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, SET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- }
-
- /* Check if CRC error occurred */
- if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
-
- /* Reset CRC Calculation */
- __HAL_SPI_RESET_CRC(hspi);
- }
- }
-
- /* Disable RXNE and ERR interrupt */
- __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE));
-
- /* if Transmit process is finished */
- if(__HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_TXE) == RESET)
- {
- /* Disable ERR interrupt */
- __HAL_SPI_DISABLE_IT(hspi, (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);
- }
-
- /* Check if Errors has been detected during transfer */
- if(hspi->ErrorCode == HAL_SPI_ERROR_NONE)
- {
- /* Check if we are in Rx or in Rx/Tx Mode */
- if(hspi->State == HAL_SPI_STATE_BUSY_TX_RX)
- {
- /* Set state to READY before run the Callback Complete */
- hspi->State = HAL_SPI_STATE_READY;
- HAL_SPI_TxRxCpltCallback(hspi);
- }
- else
- {
- /* Set state to READY before run the Callback Complete */
- hspi->State = HAL_SPI_STATE_READY;
- HAL_SPI_RxCpltCallback(hspi);
- }
- }
- else
- {
- /* Set state to READY before run the Callback Complete */
- hspi->State = HAL_SPI_STATE_READY;
- /* Call Error call back in case of Error */
- HAL_SPI_ErrorCallback(hspi);
- }
- }
-}
-
-/**
- * @brief Interrupt Handler to receive amount of data in 2Lines mode
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval void
- */
-static void SPI_2LinesRxISR(SPI_HandleTypeDef *hspi)
-{
- /* Receive data in 8 Bit mode */
- if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
- {
- (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
- }
- /* Receive data in 16 Bit mode */
- else
- {
- *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
- hspi->pRxBuffPtr+=2;
- }
- hspi->RxXferCount--;
-
- if(hspi->RxXferCount==0)
- {
- SPI_RxCloseIRQHandler(hspi);
- }
-}
-
-/**
- * @brief Interrupt Handler to receive amount of data in no-blocking mode
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval void
- */
-static void SPI_RxISR(SPI_HandleTypeDef *hspi)
-{
- /* Receive data in 8 Bit mode */
- if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
- {
- (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
- }
- /* Receive data in 16 Bit mode */
- else
- {
- *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
- hspi->pRxBuffPtr+=2;
- }
- hspi->RxXferCount--;
-
- /* Enable CRC Transmission */
- if((hspi->RxXferCount == 1) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED))
- {
- /* Set CRC Next to calculate CRC on Rx side */
- hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
- }
-
- if(hspi->RxXferCount == 0)
- {
- SPI_RxCloseIRQHandler(hspi);
- }
-}
-
-/**
- * @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;
-
- /* DMA Normal Mode */
- if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
- {
- /* Wait until TXE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- }
- /* Disable Tx DMA Request */
- hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
-
- /* Wait until Busy flag is reset before disabling SPI */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_BSY, SET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- }
-
- hspi->TxXferCount = 0;
-
- hspi->State = HAL_SPI_STATE_READY;
- }
-
- /* Clear OVERUN flag in 2 Lines communication mode because received is not read */
- if(hspi->Init.Direction == SPI_DIRECTION_2LINES)
- {
- __HAL_SPI_CLEAR_OVRFLAG(hspi);
- }
-
- /* Check if Errors has been detected during transfer */
- if(hspi->ErrorCode != HAL_SPI_ERROR_NONE)
- {
- HAL_SPI_ErrorCallback(hspi);
- }
- else
- {
- HAL_SPI_TxCpltCallback(hspi);
- }
-}
-
-/**
- * @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)
-{
- __IO uint16_t tmpreg;
-
- SPI_HandleTypeDef* hspi = ( SPI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
- /* DMA Normal mode */
- if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
- {
- 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);
- }
-
- /* Disable Rx DMA Request */
- hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_RXDMAEN);
- /* Disable Tx DMA Request (done by default to handle the case Master RX direction 2 lines) */
- hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
-
- hspi->RxXferCount = 0;
- hspi->State = HAL_SPI_STATE_READY;
-
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- /* Wait until RXNE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- }
-
- /* Read CRC */
- tmpreg = hspi->Instance->DR;
-
- /* Wait until RXNE flag is set */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, SET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- }
-
- /* Check if CRC error occurred */
- if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
- __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
- }
- }
-
- /* Check if Errors has been detected during transfer */
- if(hspi->ErrorCode != HAL_SPI_ERROR_NONE)
- {
- HAL_SPI_ErrorCallback(hspi);
- }
- else
- {
- HAL_SPI_RxCpltCallback(hspi);
- }
- }
- else
- {
- HAL_SPI_RxCpltCallback(hspi);
- }
-}
-
-/**
- * @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)
-{
- __IO uint16_t tmpreg;
-
- SPI_HandleTypeDef* hspi = ( SPI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
- if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
- {
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- /* Check if CRC is done on going (RXNE flag set) */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, SET, SPI_TIMEOUT_VALUE) == HAL_OK)
- {
- /* Wait until RXNE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- }
- }
- /* Read CRC */
- tmpreg = hspi->Instance->DR;
-
- /* Check if CRC error occurred */
- if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
- __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
- }
- }
-
- /* Wait until TXE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- }
- /* Disable Tx DMA Request */
- hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
-
- /* Wait until Busy flag is reset before disabling SPI */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_BSY, SET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
- }
-
- /* Disable Rx DMA Request */
- hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_RXDMAEN);
-
- hspi->TxXferCount = 0;
- hspi->RxXferCount = 0;
-
- hspi->State = HAL_SPI_STATE_READY;
-
-
- /* Check if Errors has been detected during transfer */
- if(hspi->ErrorCode != HAL_SPI_ERROR_NONE)
- {
- HAL_SPI_ErrorCallback(hspi);
- }
- else
- {
- HAL_SPI_TxRxCpltCallback(hspi);
- }
- }
- else
- {
- HAL_SPI_TxRxCpltCallback(hspi);
- }
-}
-
-/**
- * @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;
-
- HAL_SPI_TxHalfCpltCallback(hspi);
-}
-
-/**
- * @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;
-
- HAL_SPI_RxHalfCpltCallback(hspi);
-}
-
-/**
- * @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;
-
- HAL_SPI_TxRxHalfCpltCallback(hspi);
-}
-
-/**
- * @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;
- hspi->TxXferCount = 0;
- hspi->RxXferCount = 0;
- hspi->State= HAL_SPI_STATE_READY;
- hspi->ErrorCode |= HAL_SPI_ERROR_DMA;
- HAL_SPI_ErrorCallback(hspi);
-}
-
-/**
- * @brief This function handles SPI Communication Timeout.
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval HAL status
- */
-static HAL_StatusTypeDef SPI_WaitOnFlagUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
-{
- uint32_t tickstart = 0;
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait until flag is set */
- if(Status == RESET)
- {
- while(__HAL_SPI_GET_FLAG(hspi, Flag) == RESET)
- {
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* 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));
-
- /* Disable SPI peripheral */
- __HAL_SPI_DISABLE(hspi);
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- __HAL_SPI_RESET_CRC(hspi);
- }
-
- hspi->State= HAL_SPI_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
-
- return HAL_TIMEOUT;
- }
- }
- }
- }
- else
- {
- while(__HAL_SPI_GET_FLAG(hspi, Flag) != RESET)
- {
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* 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));
-
- /* Disable SPI peripheral */
- __HAL_SPI_DISABLE(hspi);
-
- /* Reset CRC Calculation */
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLED)
- {
- __HAL_SPI_RESET_CRC(hspi);
- }
-
- hspi->State= HAL_SPI_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hspi);
-
- return HAL_TIMEOUT;
- }
- }
- }
- }
- return HAL_OK;
-}
-
-
-/**
- * @}
- */
-
-#endif /* HAL_SPI_MODULE_ENABLED */
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+/**
+ ******************************************************************************
+ * @file stm32f4xx_hal_spi.c
+ * @author MCD Application Team
+ * @version V1.3.2
+ * @date 26-June-2015
+ * @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
+ @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
+ (+++) Enable the DMAx interface clock using
+ (+++) Configure the DMA handle parameters
+ (+++) Configure the DMA Tx or Rx Stream
+ (+++) Associate the initialized hdma_tx 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
+
+ (#) Program the Mode, Direction , 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
+
+
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal.h"
+
+/** @addtogroup STM32F4xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup SPI SPI
+ * @brief SPI HAL module driver
+ * @{
+ */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+#define SPI_TIMEOUT_VALUE 10
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @addtogroup SPI_Private_Functions
+ * @{
+ */
+static void SPI_TxCloseIRQHandler(SPI_HandleTypeDef *hspi);
+static void SPI_TxISR(SPI_HandleTypeDef *hspi);
+static void SPI_RxCloseIRQHandler(SPI_HandleTypeDef *hspi);
+static void SPI_2LinesRxISR(SPI_HandleTypeDef *hspi);
+static void SPI_RxISR(SPI_HandleTypeDef *hspi);
+static void SPI_DMAEndTransmitReceive(SPI_HandleTypeDef *hspi);
+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 HAL_StatusTypeDef SPI_WaitOnFlagUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
+/**
+ * @}
+ */
+
+/* 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
+
+ (+) Call the function HAL_SPI_DeInit() to restore the default configuration
+ of the selected SPIx peripheral.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initializes the SPI according to the specified parameters
+ * in the SPI_InitTypeDef and create 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)
+{
+ /* Check the SPI handle allocation */
+ if(hspi == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_SPI_MODE(hspi->Init.Mode));
+ assert_param(IS_SPI_DIRECTION_MODE(hspi->Init.Direction));
+ assert_param(IS_SPI_DATASIZE(hspi->Init.DataSize));
+ assert_param(IS_SPI_CPOL(hspi->Init.CLKPolarity));
+ assert_param(IS_SPI_CPHA(hspi->Init.CLKPhase));
+ assert_param(IS_SPI_NSS(hspi->Init.NSS));
+ 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));
+ assert_param(IS_SPI_CRC_CALCULATION(hspi->Init.CRCCalculation));
+ assert_param(IS_SPI_CRC_POLYNOMIAL(hspi->Init.CRCPolynomial));
+
+ if(hspi->State == HAL_SPI_STATE_RESET)
+ {
+ /* Allocate lock resource and initialize it */
+ hspi->Lock = HAL_UNLOCKED;
+ /* Init the low level hardware : GPIO, CLOCK, NVIC... */
+ HAL_SPI_MspInit(hspi);
+ }
+
+ hspi->State = HAL_SPI_STATE_BUSY;
+
+ /* Disable the selected SPI peripheral */
+ __HAL_SPI_DISABLE(hspi);
+
+ /*----------------------- SPIx CR1 & CR2 Configuration ---------------------*/
+ /* Configure : SPI Mode, Communication Mode, Data size, Clock polarity and phase, NSS management,
+ Communication speed, First bit and CRC calculation state */
+ hspi->Instance->CR1 = (hspi->Init.Mode | hspi->Init.Direction | hspi->Init.DataSize |
+ hspi->Init.CLKPolarity | hspi->Init.CLKPhase | (hspi->Init.NSS & SPI_CR1_SSM) |
+ hspi->Init.BaudRatePrescaler | hspi->Init.FirstBit | hspi->Init.CRCCalculation);
+
+ /* Configure : NSS management */
+ hspi->Instance->CR2 = (((hspi->Init.NSS >> 16) & SPI_CR2_SSOE) | hspi->Init.TIMode);
+
+ /*---------------------------- SPIx CRCPOLY Configuration ------------------*/
+ /* Configure : CRC Polynomial */
+ hspi->Instance->CRCPR = hspi->Init.CRCPolynomial;
+
+ /* Activate the SPI mode (Make sure that I2SMOD bit in I2SCFGR register is reset) */
+ hspi->Instance->I2SCFGR &= (uint32_t)(~SPI_I2SCFGR_I2SMOD);
+
+ hspi->ErrorCode = HAL_SPI_ERROR_NONE;
+ hspi->State = HAL_SPI_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief DeInitializes 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;
+ }
+
+ /* Disable the SPI Peripheral Clock */
+ __HAL_SPI_DISABLE(hspi);
+
+ /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */
+ HAL_SPI_MspDeInit(hspi);
+
+ hspi->ErrorCode = HAL_SPI_ERROR_NONE;
+ hspi->State = HAL_SPI_STATE_RESET;
+
+ /* Release Lock */
+ __HAL_UNLOCK(hspi);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief SPI MSP Init
+ * @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)
+ {
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_SPI_MspInit could be implemented in the user file
+ */
+}
+
+/**
+ * @brief SPI MSP DeInit
+ * @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)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_SPI_MspDeInit could be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @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
+ * @param Size: amount of data to be sent
+ * @param Timeout: Timeout duration
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SPI_Transmit(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout)
+{
+
+ if(hspi->State == HAL_SPI_STATE_READY)
+ {
+ if((pData == NULL ) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction));
+
+ /* Process Locked */
+ __HAL_LOCK(hspi);
+
+ /* Configure communication */
+ hspi->State = HAL_SPI_STATE_BUSY_TX;
+ hspi->ErrorCode = HAL_SPI_ERROR_NONE;
+
+ hspi->pTxBuffPtr = pData;
+ hspi->TxXferSize = Size;
+ hspi->TxXferCount = Size;
+
+ /*Init field not used in handle to zero */
+ hspi->TxISR = 0;
+ hspi->RxISR = 0;
+ hspi->RxXferSize = 0;
+ hspi->RxXferCount = 0;
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SPI_RESET_CRC(hspi);
+ }
+
+ if(hspi->Init.Direction == SPI_DIRECTION_1LINE)
+ {
+ /* Configure communication direction : 1Line */
+ SPI_1LINE_TX(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);
+ }
+
+ /* Transmit data in 8 Bit mode */
+ if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
+ {
+ if((hspi->Init.Mode == SPI_MODE_SLAVE)|| (hspi->TxXferCount == 0x01))
+ {
+ hspi->Instance->DR = (*hspi->pTxBuffPtr++);
+ hspi->TxXferCount--;
+ }
+ while(hspi->TxXferCount > 0)
+ {
+ /* Wait until TXE flag is set to send data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ hspi->Instance->DR = (*hspi->pTxBuffPtr++);
+ hspi->TxXferCount--;
+ }
+ /* Enable CRC Transmission */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
+ }
+ }
+ /* Transmit data in 16 Bit mode */
+ else
+ {
+ if((hspi->Init.Mode == SPI_MODE_SLAVE) || (hspi->TxXferCount == 0x01))
+ {
+ hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr);
+ hspi->pTxBuffPtr+=2;
+ hspi->TxXferCount--;
+ }
+ while(hspi->TxXferCount > 0)
+ {
+ /* Wait until TXE flag is set to send data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr);
+ hspi->pTxBuffPtr+=2;
+ hspi->TxXferCount--;
+ }
+ /* Enable CRC Transmission */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
+ }
+ }
+
+ /* Wait until TXE flag is set to send data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, Timeout) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ return HAL_TIMEOUT;
+ }
+
+ /* Wait until Busy flag is reset before disabling SPI */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_BSY, SET, Timeout) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ return HAL_TIMEOUT;
+ }
+
+ /* 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);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @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
+ * @param Size: amount of data to be sent
+ * @param Timeout: Timeout duration
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SPI_Receive(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout)
+{
+ __IO uint16_t tmpreg;
+ uint32_t tmp = 0;
+
+ if(hspi->State == HAL_SPI_STATE_READY)
+ {
+ if((pData == NULL ) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hspi);
+
+ /* Configure communication */
+ hspi->State = HAL_SPI_STATE_BUSY_RX;
+ hspi->ErrorCode = HAL_SPI_ERROR_NONE;
+
+ hspi->pRxBuffPtr = pData;
+ hspi->RxXferSize = Size;
+ hspi->RxXferCount = Size;
+
+ /*Init field not used in handle to zero */
+ hspi->RxISR = 0;
+ hspi->TxISR = 0;
+ hspi->TxXferSize = 0;
+ hspi->TxXferCount = 0;
+
+ /* Configure communication direction : 1Line */
+ if(hspi->Init.Direction == SPI_DIRECTION_1LINE)
+ {
+ SPI_1LINE_RX(hspi);
+ }
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SPI_RESET_CRC(hspi);
+ }
+
+ if((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES))
+ {
+ /* Process Unlocked */
+ __HAL_UNLOCK(hspi);
+
+ /* 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);
+ }
+
+ /* 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)
+ {
+ while(hspi->RxXferCount > 1)
+ {
+ /* Wait until RXNE flag is set */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
+ hspi->RxXferCount--;
+ }
+ /* Enable CRC Transmission */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
+ }
+ }
+ /* Receive data in 16 Bit mode */
+ else
+ {
+ while(hspi->RxXferCount > 1)
+ {
+ /* Wait until RXNE flag is set to read data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
+ hspi->pRxBuffPtr+=2;
+ hspi->RxXferCount--;
+ }
+ /* Enable CRC Transmission */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
+ }
+ }
+
+ /* Wait until RXNE flag is set */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ /* Receive last data in 8 Bit mode */
+ if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
+ {
+ (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
+ }
+ /* Receive last data in 16 Bit mode */
+ else
+ {
+ *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
+ hspi->pRxBuffPtr+=2;
+ }
+ hspi->RxXferCount--;
+
+ /* Wait until RXNE flag is set: CRC Received */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
+ return HAL_TIMEOUT;
+ }
+
+ /* Read CRC to Flush RXNE flag */
+ tmpreg = hspi->Instance->DR;
+ UNUSED(tmpreg);
+ }
+
+ 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);
+ }
+
+ hspi->State = HAL_SPI_STATE_READY;
+
+ tmp = __HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR);
+ /* Check if CRC error occurred */
+ if((hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) && (tmp != RESET))
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
+
+ /* Reset CRC Calculation */
+ SPI_RESET_CRC(hspi);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hspi);
+
+ return HAL_ERROR;
+ }
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hspi);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @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
+ * @param pRxData: pointer to reception data buffer to be
+ * @param Size: amount of data to be sent
+ * @param Timeout: Timeout duration
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SPI_TransmitReceive(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout)
+{
+ __IO uint16_t tmpreg;
+ uint32_t tmpstate = 0, tmp = 0;
+
+ tmpstate = hspi->State;
+ if((tmpstate == HAL_SPI_STATE_READY) || (tmpstate == HAL_SPI_STATE_BUSY_RX))
+ {
+ if((pTxData == NULL ) || (pRxData == NULL ) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction));
+
+ /* Process Locked */
+ __HAL_LOCK(hspi);
+
+ /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */
+ if(hspi->State == HAL_SPI_STATE_READY)
+ {
+ hspi->State = HAL_SPI_STATE_BUSY_TX_RX;
+ }
+
+ /* Configure communication */
+ hspi->ErrorCode = HAL_SPI_ERROR_NONE;
+
+ hspi->pRxBuffPtr = pRxData;
+ hspi->RxXferSize = Size;
+ hspi->RxXferCount = Size;
+
+ hspi->pTxBuffPtr = pTxData;
+ hspi->TxXferSize = Size;
+ hspi->TxXferCount = Size;
+
+ /*Init field not used in handle to zero */
+ hspi->RxISR = 0;
+ hspi->TxISR = 0;
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SPI_RESET_CRC(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);
+ }
+
+ /* Transmit and Receive data in 16 Bit mode */
+ if(hspi->Init.DataSize == SPI_DATASIZE_16BIT)
+ {
+ if((hspi->Init.Mode == SPI_MODE_SLAVE) || ((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->TxXferCount == 0x01)))
+ {
+ hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr);
+ hspi->pTxBuffPtr+=2;
+ hspi->TxXferCount--;
+ }
+ if(hspi->TxXferCount == 0)
+ {
+ /* Enable CRC Transmission */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
+ }
+
+ /* Wait until RXNE flag is set */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
+ hspi->pRxBuffPtr+=2;
+ hspi->RxXferCount--;
+ }
+ else
+ {
+ while(hspi->TxXferCount > 0)
+ {
+ /* Wait until TXE flag is set to send data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr);
+ hspi->pTxBuffPtr+=2;
+ hspi->TxXferCount--;
+
+ /* Enable CRC Transmission */
+ if((hspi->TxXferCount == 0) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE))
+ {
+ hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
+ }
+
+ /* Wait until RXNE flag is set */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
+ hspi->pRxBuffPtr+=2;
+ hspi->RxXferCount--;
+ }
+ /* Receive the last byte */
+ if(hspi->Init.Mode == SPI_MODE_SLAVE)
+ {
+ /* Wait until RXNE flag is set */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
+ hspi->pRxBuffPtr+=2;
+ hspi->RxXferCount--;
+ }
+ }
+ }
+ /* Transmit and Receive data in 8 Bit mode */
+ else
+ {
+ if((hspi->Init.Mode == SPI_MODE_SLAVE) || ((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->TxXferCount == 0x01)))
+ {
+ hspi->Instance->DR = (*hspi->pTxBuffPtr++);
+ hspi->TxXferCount--;
+ }
+ if(hspi->TxXferCount == 0)
+ {
+ /* Enable CRC Transmission */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
+ }
+
+ /* Wait until RXNE flag is set */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ (*hspi->pRxBuffPtr) = hspi->Instance->DR;
+ hspi->RxXferCount--;
+ }
+ else
+ {
+ while(hspi->TxXferCount > 0)
+ {
+ /* Wait until TXE flag is set to send data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ hspi->Instance->DR = (*hspi->pTxBuffPtr++);
+ hspi->TxXferCount--;
+
+ /* Enable CRC Transmission */
+ if((hspi->TxXferCount == 0) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE))
+ {
+ hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
+ }
+
+ /* Wait until RXNE flag is set */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
+ hspi->RxXferCount--;
+ }
+ if(hspi->Init.Mode == SPI_MODE_SLAVE)
+ {
+ /* Wait until RXNE flag is set */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
+ hspi->RxXferCount--;
+ }
+ }
+ }
+
+ /* Read CRC from DR to close CRC calculation process */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ /* Wait until RXNE flag is set */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
+ return HAL_TIMEOUT;
+ }
+ /* Read CRC */
+ tmpreg = hspi->Instance->DR;
+ UNUSED(tmpreg);
+ }
+
+ /* Wait until Busy flag is reset before disabling SPI */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_BSY, SET, Timeout) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ return HAL_TIMEOUT;
+ }
+
+ hspi->State = HAL_SPI_STATE_READY;
+
+ tmp = __HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR);
+ /* Check if CRC error occurred */
+ if((hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) && (tmp != RESET))
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SPI_RESET_CRC(hspi);
+ }
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hspi);
+
+ return HAL_ERROR;
+ }
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hspi);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Transmit an amount of data in no-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
+ * @param Size: amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SPI_Transmit_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size)
+{
+ if(hspi->State == HAL_SPI_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction));
+
+ /* Process Locked */
+ __HAL_LOCK(hspi);
+
+ /* Configure communication */
+ hspi->State = HAL_SPI_STATE_BUSY_TX;
+ hspi->ErrorCode = HAL_SPI_ERROR_NONE;
+
+ hspi->TxISR = &SPI_TxISR;
+ hspi->pTxBuffPtr = pData;
+ hspi->TxXferSize = Size;
+ hspi->TxXferCount = Size;
+
+ /*Init field not used in handle to zero */
+ hspi->RxISR = 0;
+ hspi->RxXferSize = 0;
+ hspi->RxXferCount = 0;
+
+ /* Configure communication direction : 1Line */
+ if(hspi->Init.Direction == SPI_DIRECTION_1LINE)
+ {
+ SPI_1LINE_TX(hspi);
+ }
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SPI_RESET_CRC(hspi);
+ }
+
+ if (hspi->Init.Direction == SPI_DIRECTION_2LINES)
+ {
+ __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE));
+ }else
+ {
+ /* Enable TXE and ERR interrupt */
+ __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_ERR));
+ }
+ /* Process Unlocked */
+ __HAL_UNLOCK(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);
+ }
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Receive an amount of data in no-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
+ * @param Size: amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SPI_Receive_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size)
+{
+ if(hspi->State == HAL_SPI_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hspi);
+
+ /* Configure communication */
+ hspi->State = HAL_SPI_STATE_BUSY_RX;
+ hspi->ErrorCode = HAL_SPI_ERROR_NONE;
+
+ hspi->RxISR = &SPI_RxISR;
+ hspi->pRxBuffPtr = pData;
+ hspi->RxXferSize = Size;
+ hspi->RxXferCount = Size ;
+
+ /*Init field not used in handle to zero */
+ hspi->TxISR = 0;
+ hspi->TxXferSize = 0;
+ hspi->TxXferCount = 0;
+
+ /* Configure communication direction : 1Line */
+ if(hspi->Init.Direction == SPI_DIRECTION_1LINE)
+ {
+ SPI_1LINE_RX(hspi);
+ }
+ else if((hspi->Init.Direction == SPI_DIRECTION_2LINES) && (hspi->Init.Mode == SPI_MODE_MASTER))
+ {
+ /* Process Unlocked */
+ __HAL_UNLOCK(hspi);
+
+ /* 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);
+ }
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SPI_RESET_CRC(hspi);
+ }
+
+ /* Enable TXE and ERR interrupt */
+ __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR));
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hspi);
+
+ /* 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);
+ }
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Transmit and Receive an amount of data in no-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
+ * @param pRxData: pointer to reception data buffer to be
+ * @param Size: amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SPI_TransmitReceive_IT(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size)
+{
+ uint32_t tmpstate = 0;
+
+ tmpstate = hspi->State;
+ if((tmpstate == HAL_SPI_STATE_READY) || \
+ ((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && (tmpstate == HAL_SPI_STATE_BUSY_RX)))
+ {
+ if((pTxData == NULL ) || (pRxData == NULL ) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction));
+
+ /* 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;
+ }
+
+ /* Configure communication */
+ hspi->ErrorCode = HAL_SPI_ERROR_NONE;
+
+ hspi->TxISR = &SPI_TxISR;
+ hspi->pTxBuffPtr = pTxData;
+ hspi->TxXferSize = Size;
+ hspi->TxXferCount = Size;
+
+ hspi->RxISR = &SPI_2LinesRxISR;
+ hspi->pRxBuffPtr = pRxData;
+ hspi->RxXferSize = Size;
+ hspi->RxXferCount = Size;
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SPI_RESET_CRC(hspi);
+ }
+
+ /* Enable TXE, RXNE and ERR interrupt */
+ __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_RXNE | SPI_IT_ERR));
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(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);
+ }
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Transmit an amount of data in no-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
+ * @param Size: amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SPI_Transmit_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size)
+{
+ if(hspi->State == HAL_SPI_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction));
+
+ /* Process Locked */
+ __HAL_LOCK(hspi);
+
+ /* Configure communication */
+ hspi->State = HAL_SPI_STATE_BUSY_TX;
+ hspi->ErrorCode = HAL_SPI_ERROR_NONE;
+
+ hspi->pTxBuffPtr = pData;
+ hspi->TxXferSize = Size;
+ hspi->TxXferCount = Size;
+
+ /*Init field not used in handle to zero */
+ hspi->TxISR = 0;
+ hspi->RxISR = 0;
+ hspi->RxXferSize = 0;
+ hspi->RxXferCount = 0;
+
+ /* Configure communication direction : 1Line */
+ if(hspi->Init.Direction == SPI_DIRECTION_1LINE)
+ {
+ SPI_1LINE_TX(hspi);
+ }
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SPI_RESET_CRC(hspi);
+ }
+
+ /* 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;
+
+ /* Enable the Tx DMA Stream */
+ HAL_DMA_Start_IT(hspi->hdmatx, (uint32_t)hspi->pTxBuffPtr, (uint32_t)&hspi->Instance->DR, hspi->TxXferCount);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(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);
+ }
+
+ /* Enable Tx DMA Request */
+ hspi->Instance->CR2 |= SPI_CR2_TXDMAEN;
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Receive an amount of data in no-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
+ * @note When the CRC feature is enabled the pData Length must be Size + 1.
+ * @param Size: amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SPI_Receive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size)
+{
+ if(hspi->State == HAL_SPI_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(hspi);
+
+ /* Configure communication */
+ hspi->State = HAL_SPI_STATE_BUSY_RX;
+ hspi->ErrorCode = HAL_SPI_ERROR_NONE;
+
+ hspi->pRxBuffPtr = pData;
+ hspi->RxXferSize = Size;
+ hspi->RxXferCount = Size;
+
+ /*Init field not used in handle to zero */
+ hspi->RxISR = 0;
+ hspi->TxISR = 0;
+ hspi->TxXferSize = 0;
+ hspi->TxXferCount = 0;
+
+ /* Configure communication direction : 1Line */
+ if(hspi->Init.Direction == SPI_DIRECTION_1LINE)
+ {
+ SPI_1LINE_RX(hspi);
+ }
+ else if((hspi->Init.Direction == SPI_DIRECTION_2LINES)&&(hspi->Init.Mode == SPI_MODE_MASTER))
+ {
+ /* Process Unlocked */
+ __HAL_UNLOCK(hspi);
+
+ /* 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);
+ }
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SPI_RESET_CRC(hspi);
+ }
+
+ /* 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;
+
+ /* Enable the Rx DMA Stream */
+ HAL_DMA_Start_IT(hspi->hdmarx, (uint32_t)&hspi->Instance->DR, (uint32_t)hspi->pRxBuffPtr, hspi->RxXferCount);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(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);
+ }
+
+ /* Enable Rx DMA Request */
+ hspi->Instance->CR2 |= SPI_CR2_RXDMAEN;
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Transmit and Receive an amount of data in no-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
+ * @param pRxData: pointer to reception data buffer
+ * @note When the CRC feature is enabled the pRxData Length must be Size + 1
+ * @param Size: amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_SPI_TransmitReceive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size)
+{
+ uint32_t tmpstate = 0;
+ tmpstate = hspi->State;
+ if((tmpstate == HAL_SPI_STATE_READY) || ((hspi->Init.Mode == SPI_MODE_MASTER) && \
+ (hspi->Init.Direction == SPI_DIRECTION_2LINES) && (tmpstate == HAL_SPI_STATE_BUSY_RX)))
+ {
+ if((pTxData == NULL ) || (pRxData == NULL ) || (Size == 0))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction));
+
+ /* 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;
+ }
+
+ /* Configure communication */
+ hspi->ErrorCode = HAL_SPI_ERROR_NONE;
+
+ hspi->pTxBuffPtr = (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 = 0;
+ hspi->TxISR = 0;
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SPI_RESET_CRC(hspi);
+ }
+
+ /* 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;
+
+ /* Enable the Rx DMA Stream */
+ HAL_DMA_Start_IT(hspi->hdmarx, (uint32_t)&hspi->Instance->DR, (uint32_t)hspi->pRxBuffPtr, hspi->RxXferCount);
+
+ /* Enable Rx DMA Request */
+ 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->XferCpltCallback = NULL;
+
+ if(hspi->State == HAL_SPI_STATE_BUSY_TX_RX)
+ {
+ /* Set the DMA error callback */
+ hspi->hdmatx->XferErrorCallback = SPI_DMAError;
+ }
+ else
+ {
+ hspi->hdmatx->XferErrorCallback = NULL;
+ }
+
+ /* Enable the Tx DMA Stream */
+ HAL_DMA_Start_IT(hspi->hdmatx, (uint32_t)hspi->pTxBuffPtr, (uint32_t)&hspi->Instance->DR, hspi->TxXferCount);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(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);
+ }
+
+ /* Enable Tx DMA Request */
+ hspi->Instance->CR2 |= SPI_CR2_TXDMAEN;
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Pauses 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 */
+ hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
+ hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_RXDMAEN);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hspi);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Resumes 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 */
+ hspi->Instance->CR2 |= SPI_CR2_TXDMAEN;
+ hspi->Instance->CR2 |= SPI_CR2_RXDMAEN;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hspi);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Stops 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)
+{
+ /* 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 */
+ if(hspi->hdmatx != NULL)
+ {
+ HAL_DMA_Abort(hspi->hdmatx);
+ }
+ /* Abort the SPI DMA rx Stream */
+ if(hspi->hdmarx != NULL)
+ {
+ HAL_DMA_Abort(hspi->hdmarx);
+ }
+
+ /* Disable the SPI DMA Tx & Rx requests */
+ hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
+ hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_RXDMAEN);
+
+ hspi->State = HAL_SPI_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief This function handles SPI interrupt request.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval HAL status
+ */
+void HAL_SPI_IRQHandler(SPI_HandleTypeDef *hspi)
+{
+ uint32_t tmp1 = 0, tmp2 = 0, tmp3 = 0;
+
+ tmp1 = __HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE);
+ tmp2 = __HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_RXNE);
+ tmp3 = __HAL_SPI_GET_FLAG(hspi, SPI_FLAG_OVR);
+ /* SPI in mode Receiver and Overrun not occurred ---------------------------*/
+ if((tmp1 != RESET) && (tmp2 != RESET) && (tmp3 == RESET))
+ {
+ hspi->RxISR(hspi);
+ return;
+ }
+
+ tmp1 = __HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE);
+ tmp2 = __HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_TXE);
+ /* SPI in mode Transmitter ---------------------------------------------------*/
+ if((tmp1 != RESET) && (tmp2 != RESET))
+ {
+ hspi->TxISR(hspi);
+ return;
+ }
+
+ if(__HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_ERR) != RESET)
+ {
+ /* SPI CRC error interrupt occurred ---------------------------------------*/
+ if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
+ __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
+ }
+ /* SPI Mode Fault error interrupt occurred --------------------------------*/
+ if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_MODF) != RESET)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_MODF;
+ __HAL_SPI_CLEAR_MODFFLAG(hspi);
+ }
+
+ /* SPI Overrun error interrupt occurred -----------------------------------*/
+ if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_OVR) != RESET)
+ {
+ if(hspi->State != HAL_SPI_STATE_BUSY_TX)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_OVR;
+ __HAL_SPI_CLEAR_OVRFLAG(hspi);
+ }
+ }
+
+ /* SPI Frame error interrupt occurred -------------------------------------*/
+ if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_FRE) != RESET)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FRE;
+ __HAL_SPI_CLEAR_FREFLAG(hspi);
+ }
+
+ /* Call the Error call Back in case of Errors */
+ if(hspi->ErrorCode!=HAL_SPI_ERROR_NONE)
+ {
+ hspi->State = HAL_SPI_STATE_READY;
+ HAL_SPI_ErrorCallback(hspi);
+ }
+ }
+}
+
+/**
+ * @brief Tx Transfer completed callbacks
+ * @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)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_SPI_TxCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Rx Transfer completed callbacks
+ * @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)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_SPI_RxCpltCallback() could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Tx and Rx Transfer completed callbacks
+ * @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)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_SPI_TxRxCpltCallback() could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Tx Half Transfer completed callbacks
+ * @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)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_SPI_TxHalfCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Rx Half Transfer completed callbacks
+ * @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)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_SPI_RxHalfCpltCallback() could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Tx and Rx Transfer completed callbacks
+ * @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)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_SPI_TxRxHalfCpltCallback() could be implemented in the user file
+ */
+}
+
+/**
+ * @brief SPI error callbacks
+ * @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)
+{
+ /* NOTE : - This function Should not be modified, when the callback is needed,
+ the HAL_SPI_ErrorCallback() could be implemented in the user file.
+ - 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.
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @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 state
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval HAL state
+ */
+HAL_SPI_StateTypeDef HAL_SPI_GetState(SPI_HandleTypeDef *hspi)
+{
+ 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
+ */
+uint32_t HAL_SPI_GetError(SPI_HandleTypeDef *hspi)
+{
+ return hspi->ErrorCode;
+}
+
+/**
+ * @}
+ */
+
+ /**
+ * @brief Interrupt Handler to close Tx transfer
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval void
+ */
+static void SPI_TxCloseIRQHandler(SPI_HandleTypeDef *hspi)
+{
+ /* Wait until TXE flag is set to send data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ }
+
+ /* Disable TXE interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE ));
+
+ /* Disable ERR interrupt if Receive process is finished */
+ if(__HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_RXNE) == RESET)
+ {
+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_ERR));
+
+ /* Wait until Busy flag is reset before disabling SPI */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_BSY, SET, SPI_TIMEOUT_VALUE) != 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);
+ }
+
+ /* Check if Errors has been detected during transfer */
+ if(hspi->ErrorCode == HAL_SPI_ERROR_NONE)
+ {
+ /* Check if we are in Tx or in Rx/Tx Mode */
+ if(hspi->State == HAL_SPI_STATE_BUSY_TX_RX)
+ {
+ /* Set state to READY before run the Callback Complete */
+ hspi->State = HAL_SPI_STATE_READY;
+ HAL_SPI_TxRxCpltCallback(hspi);
+ }
+ else
+ {
+ /* Set state to READY before run the Callback Complete */
+ hspi->State = HAL_SPI_STATE_READY;
+ HAL_SPI_TxCpltCallback(hspi);
+ }
+ }
+ else
+ {
+ /* Set state to READY before run the Callback Complete */
+ hspi->State = HAL_SPI_STATE_READY;
+ /* Call Error call back in case of Error */
+ HAL_SPI_ErrorCallback(hspi);
+ }
+ }
+}
+
+/**
+ * @brief Interrupt Handler to transmit amount of data in no-blocking mode
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval void
+ */
+static void SPI_TxISR(SPI_HandleTypeDef *hspi)
+{
+ /* Transmit data in 8 Bit mode */
+ if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
+ {
+ hspi->Instance->DR = (*hspi->pTxBuffPtr++);
+ }
+ /* Transmit data in 16 Bit mode */
+ else
+ {
+ hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr);
+ hspi->pTxBuffPtr+=2;
+ }
+ hspi->TxXferCount--;
+
+ if(hspi->TxXferCount == 0)
+ {
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ /* calculate and transfer CRC on Tx line */
+ hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
+ }
+ SPI_TxCloseIRQHandler(hspi);
+ }
+}
+
+/**
+ * @brief Interrupt Handler to close Rx transfer
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval void
+ */
+static void SPI_RxCloseIRQHandler(SPI_HandleTypeDef *hspi)
+{
+ __IO uint16_t tmpreg;
+
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ /* Wait until RXNE flag is set to send data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ }
+
+ /* Read CRC to reset RXNE flag */
+ tmpreg = hspi->Instance->DR;
+ UNUSED(tmpreg);
+
+ /* Wait until RXNE flag is set to send data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, SET, SPI_TIMEOUT_VALUE) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ }
+
+ /* Check if CRC error occurred */
+ if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
+
+ /* Reset CRC Calculation */
+ SPI_RESET_CRC(hspi);
+ }
+ }
+
+ /* Disable RXNE and ERR interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE));
+
+ /* if Transmit process is finished */
+ if(__HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_TXE) == RESET)
+ {
+ /* Disable ERR interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, (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);
+ }
+
+ /* Check if Errors has been detected during transfer */
+ if(hspi->ErrorCode == HAL_SPI_ERROR_NONE)
+ {
+ /* Check if we are in Rx or in Rx/Tx Mode */
+ if(hspi->State == HAL_SPI_STATE_BUSY_TX_RX)
+ {
+ /* Set state to READY before run the Callback Complete */
+ hspi->State = HAL_SPI_STATE_READY;
+ HAL_SPI_TxRxCpltCallback(hspi);
+ }
+ else
+ {
+ /* Set state to READY before run the Callback Complete */
+ hspi->State = HAL_SPI_STATE_READY;
+ HAL_SPI_RxCpltCallback(hspi);
+ }
+ }
+ else
+ {
+ /* Set state to READY before run the Callback Complete */
+ hspi->State = HAL_SPI_STATE_READY;
+ /* Call Error call back in case of Error */
+ HAL_SPI_ErrorCallback(hspi);
+ }
+ }
+}
+
+/**
+ * @brief Interrupt Handler to receive amount of data in 2Lines mode
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval void
+ */
+static void SPI_2LinesRxISR(SPI_HandleTypeDef *hspi)
+{
+ /* Receive data in 8 Bit mode */
+ if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
+ {
+ (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
+ }
+ /* Receive data in 16 Bit mode */
+ else
+ {
+ *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
+ hspi->pRxBuffPtr+=2;
+ }
+ hspi->RxXferCount--;
+
+ if(hspi->RxXferCount==0)
+ {
+ SPI_RxCloseIRQHandler(hspi);
+ }
+}
+
+/**
+ * @brief Interrupt Handler to receive amount of data in no-blocking mode
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval void
+ */
+static void SPI_RxISR(SPI_HandleTypeDef *hspi)
+{
+ /* Receive data in 8 Bit mode */
+ if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
+ {
+ (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
+ }
+ /* Receive data in 16 Bit mode */
+ else
+ {
+ *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
+ hspi->pRxBuffPtr+=2;
+ }
+ hspi->RxXferCount--;
+
+ /* Enable CRC Transmission */
+ if((hspi->RxXferCount == 1) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE))
+ {
+ /* Set CRC Next to calculate CRC on Rx side */
+ hspi->Instance->CR1 |= SPI_CR1_CRCNEXT;
+ }
+
+ if(hspi->RxXferCount == 0)
+ {
+ SPI_RxCloseIRQHandler(hspi);
+ }
+}
+
+/**
+ * @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;
+
+ /* DMA Normal Mode */
+ if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
+ {
+ /* Wait until TXE flag is set to send data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ }
+ /* Disable Tx DMA Request */
+ hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
+
+ /* Wait until Busy flag is reset before disabling SPI */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_BSY, SET, SPI_TIMEOUT_VALUE) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ }
+
+ hspi->TxXferCount = 0;
+
+ hspi->State = HAL_SPI_STATE_READY;
+ }
+
+ /* 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);
+ }
+
+ /* Check if Errors has been detected during transfer */
+ if(hspi->ErrorCode != HAL_SPI_ERROR_NONE)
+ {
+ HAL_SPI_ErrorCallback(hspi);
+ }
+ else
+ {
+ HAL_SPI_TxCpltCallback(hspi);
+ }
+}
+
+/**
+ * @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)
+{
+ __IO uint16_t tmpreg;
+
+ SPI_HandleTypeDef* hspi = ( SPI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ /* DMA Normal mode */
+ if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
+ {
+ if((hspi->Init.Direction == SPI_DIRECTION_2LINES)&&(hspi->Init.Mode == SPI_MODE_MASTER))
+ {
+ SPI_DMAEndTransmitReceive(hspi);
+ }
+ /* SPI_DIRECTION_1LINE or SPI_DIRECTION_2LINES_RXONLY */
+ else
+ {
+ 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);
+ }
+
+ /* Disable Rx DMA Request */
+ hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_RXDMAEN);
+
+ hspi->RxXferCount = 0;
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ /* Wait until RXNE flag is set to send data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ }
+
+ /* Read CRC */
+ tmpreg = hspi->Instance->DR;
+ UNUSED(tmpreg);
+
+ /* Wait until RXNE flag is set */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, SET, SPI_TIMEOUT_VALUE) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ }
+
+ /* Check if CRC error occurred */
+ if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
+ __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
+ }
+ }
+ }
+
+ hspi->State = HAL_SPI_STATE_READY;
+
+ /* Check if Errors has been detected during transfer */
+ if(hspi->ErrorCode != HAL_SPI_ERROR_NONE)
+ {
+ HAL_SPI_ErrorCallback(hspi);
+ }
+ else
+ {
+ HAL_SPI_RxCpltCallback(hspi);
+ }
+ }
+ else
+ {
+ HAL_SPI_RxCpltCallback(hspi);
+ }
+}
+
+/**
+ * @brief End DMA SPI transmit receive process
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_DMAEndTransmitReceive(SPI_HandleTypeDef *hspi)
+{
+ __IO uint16_t tmpreg;
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ /* Check if CRC is done on going (RXNE flag set) */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, SET, SPI_TIMEOUT_VALUE) == HAL_OK)
+ {
+ /* Wait until RXNE flag is set to send data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ }
+ }
+ /* Read CRC */
+ tmpreg = hspi->Instance->DR;
+ UNUSED(tmpreg);
+
+ /* Check if CRC error occurred */
+ if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_CRC;
+ __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
+ }
+ }
+
+ /* Wait until TXE flag is set to send data */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ }
+ /* Disable Tx DMA Request */
+ hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
+
+ /* Wait until Busy flag is reset before disabling SPI */
+ if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_BSY, SET, SPI_TIMEOUT_VALUE) != HAL_OK)
+ {
+ hspi->ErrorCode |= HAL_SPI_ERROR_FLAG;
+ }
+
+ /* Disable Rx DMA Request */
+ hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_RXDMAEN);
+
+ hspi->TxXferCount = 0;
+ hspi->RxXferCount = 0;
+}
+
+/**
+ * @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;
+ if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
+ { /**/
+ SPI_DMAEndTransmitReceive(hspi);
+
+ hspi->State = HAL_SPI_STATE_READY;
+
+ /* Check if Errors has been detected during transfer */
+ if(hspi->ErrorCode != HAL_SPI_ERROR_NONE)
+ {
+ HAL_SPI_ErrorCallback(hspi);
+ }
+ else
+ {
+ HAL_SPI_TxRxCpltCallback(hspi);
+ }
+ }
+ else
+ {
+ HAL_SPI_TxRxCpltCallback(hspi);
+ }
+}
+
+/**
+ * @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;
+
+ HAL_SPI_TxHalfCpltCallback(hspi);
+}
+
+/**
+ * @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;
+
+ HAL_SPI_RxHalfCpltCallback(hspi);
+}
+
+/**
+ * @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;
+
+ HAL_SPI_TxRxHalfCpltCallback(hspi);
+}
+
+/**
+ * @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;
+ hspi->TxXferCount = 0;
+ hspi->RxXferCount = 0;
+ hspi->State= HAL_SPI_STATE_READY;
+ hspi->ErrorCode |= HAL_SPI_ERROR_DMA;
+ HAL_SPI_ErrorCallback(hspi);
+}
+
+/**
+ * @brief This function handles 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 Status: Flag status to check: RESET or set
+ * @param Timeout: Timeout duration
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef SPI_WaitOnFlagUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
+{
+ uint32_t tickstart = 0;
+
+ /* Get tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait until flag is set */
+ if(Status == RESET)
+ {
+ while(__HAL_SPI_GET_FLAG(hspi, Flag) == RESET)
+ {
+ if(Timeout != HAL_MAX_DELAY)
+ {
+ if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
+ {
+ /* 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));
+
+ /* 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;
+ }
+ }
+ }
+ }
+ else
+ {
+ while(__HAL_SPI_GET_FLAG(hspi, Flag) != RESET)
+ {
+ if(Timeout != HAL_MAX_DELAY)
+ {
+ if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
+ {
+ /* 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));
+
+ /* 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;
+ }
+ }
+ }
+ }
+ return HAL_OK;
+}
+
+
+/**
+ * @}
+ */
+
+#endif /* HAL_SPI_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-21 21:37:37 +0000