stm32f4xx_hal_spi.c

Go to the documentation of this file.

 
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"
 
#ifdef HAL_SPI_MODULE_ENABLED
 
/* Private typedef -----------------------------------------------------------*/
/* Private defines -----------------------------------------------------------*/
#define SPI_DEFAULT_TIMEOUT 100U
#define SPI_BSY_FLAG_WORKAROUND_TIMEOUT 1000U 
/* Private macros ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void SPI_DMATransmitCplt(DMA_HandleTypeDef *hdma);
static void SPI_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
static void SPI_DMATransmitReceiveCplt(DMA_HandleTypeDef *hdma);
static void SPI_DMAHalfTransmitCplt(DMA_HandleTypeDef *hdma);
static void SPI_DMAHalfReceiveCplt(DMA_HandleTypeDef *hdma);
static void SPI_DMAHalfTransmitReceiveCplt(DMA_HandleTypeDef *hdma);
static void SPI_DMAError(DMA_HandleTypeDef *hdma);
static void SPI_DMAAbortOnError(DMA_HandleTypeDef *hdma);
static void SPI_DMATxAbortCallback(DMA_HandleTypeDef *hdma);
static void SPI_DMARxAbortCallback(DMA_HandleTypeDef *hdma);
static HAL_StatusTypeDef SPI_WaitFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, FlagStatus State,
                                                       uint32_t Timeout, uint32_t Tickstart);
static void SPI_TxISR_8BIT(struct __SPI_HandleTypeDef *hspi);
static void SPI_TxISR_16BIT(struct __SPI_HandleTypeDef *hspi);
static void SPI_RxISR_8BIT(struct __SPI_HandleTypeDef *hspi);
static void SPI_RxISR_16BIT(struct __SPI_HandleTypeDef *hspi);
static void SPI_2linesRxISR_8BIT(struct __SPI_HandleTypeDef *hspi);
static void SPI_2linesTxISR_8BIT(struct __SPI_HandleTypeDef *hspi);
static void SPI_2linesTxISR_16BIT(struct __SPI_HandleTypeDef *hspi);
static void SPI_2linesRxISR_16BIT(struct __SPI_HandleTypeDef *hspi);
#if (USE_SPI_CRC != 0U)
static void SPI_RxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi);
static void SPI_RxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi);
static void SPI_2linesRxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi);
static void SPI_2linesRxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi);
#endif /* USE_SPI_CRC */
static void SPI_AbortRx_ISR(SPI_HandleTypeDef *hspi);
static void SPI_AbortTx_ISR(SPI_HandleTypeDef *hspi);
static void SPI_CloseRxTx_ISR(SPI_HandleTypeDef *hspi);
static void SPI_CloseRx_ISR(SPI_HandleTypeDef *hspi);
static void SPI_CloseTx_ISR(SPI_HandleTypeDef *hspi);
static HAL_StatusTypeDef SPI_EndRxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart);
static HAL_StatusTypeDef SPI_EndRxTxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart);
/* Exported functions --------------------------------------------------------*/
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_ALL_INSTANCE(hspi->Instance));
  assert_param(IS_SPI_MODE(hspi->Init.Mode));
  assert_param(IS_SPI_DIRECTION(hspi->Init.Direction));
  assert_param(IS_SPI_DATASIZE(hspi->Init.DataSize));
  assert_param(IS_SPI_NSS(hspi->Init.NSS));
  assert_param(IS_SPI_BAUDRATE_PRESCALER(hspi->Init.BaudRatePrescaler));
  assert_param(IS_SPI_FIRST_BIT(hspi->Init.FirstBit));
  assert_param(IS_SPI_TIMODE(hspi->Init.TIMode));
  if (hspi->Init.TIMode == SPI_TIMODE_DISABLE)
  {
    assert_param(IS_SPI_CPOL(hspi->Init.CLKPolarity));
    assert_param(IS_SPI_CPHA(hspi->Init.CLKPhase));
 
    if (hspi->Init.Mode == SPI_MODE_MASTER)
    {
      assert_param(IS_SPI_BAUDRATE_PRESCALER(hspi->Init.BaudRatePrescaler));
    }
    else
    {
      /* Baudrate prescaler not use in Motoraola Slave mode. force to default value */
      hspi->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
    }
  }
  else
  {
    assert_param(IS_SPI_BAUDRATE_PRESCALER(hspi->Init.BaudRatePrescaler));
 
    /* Force polarity and phase to TI protocaol requirements */
    hspi->Init.CLKPolarity = SPI_POLARITY_LOW;
    hspi->Init.CLKPhase    = SPI_PHASE_1EDGE;
  }
#if (USE_SPI_CRC != 0U)
  assert_param(IS_SPI_CRC_CALCULATION(hspi->Init.CRCCalculation));
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    assert_param(IS_SPI_CRC_POLYNOMIAL(hspi->Init.CRCPolynomial));
  }
#else
  hspi->Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
#endif /* USE_SPI_CRC */
 
  if (hspi->State == HAL_SPI_STATE_RESET)
  {
    /* Allocate lock resource and initialize it */
    hspi->Lock = HAL_UNLOCKED;
 
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
    /* Init the SPI Callback settings */
    hspi->TxCpltCallback       = HAL_SPI_TxCpltCallback;       /* Legacy weak TxCpltCallback       */
    hspi->RxCpltCallback       = HAL_SPI_RxCpltCallback;       /* Legacy weak RxCpltCallback       */
    hspi->TxRxCpltCallback     = HAL_SPI_TxRxCpltCallback;     /* Legacy weak TxRxCpltCallback     */
    hspi->TxHalfCpltCallback   = HAL_SPI_TxHalfCpltCallback;   /* Legacy weak TxHalfCpltCallback   */
    hspi->RxHalfCpltCallback   = HAL_SPI_RxHalfCpltCallback;   /* Legacy weak RxHalfCpltCallback   */
    hspi->TxRxHalfCpltCallback = HAL_SPI_TxRxHalfCpltCallback; /* Legacy weak TxRxHalfCpltCallback */
    hspi->ErrorCallback        = HAL_SPI_ErrorCallback;        /* Legacy weak ErrorCallback        */
    hspi->AbortCpltCallback    = HAL_SPI_AbortCpltCallback;    /* Legacy weak AbortCpltCallback    */
 
    if (hspi->MspInitCallback == NULL)
    {
      hspi->MspInitCallback = HAL_SPI_MspInit; /* Legacy weak MspInit  */
    }
 
    /* Init the low level hardware : GPIO, CLOCK, NVIC... */
    hspi->MspInitCallback(hspi);
#else
    /* Init the low level hardware : GPIO, CLOCK, NVIC... */
    HAL_SPI_MspInit(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
  }
 
  hspi->State = HAL_SPI_STATE_BUSY;
 
  /* Disable the selected SPI peripheral */
  __HAL_SPI_DISABLE(hspi);
 
  /*----------------------- 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 */
  WRITE_REG(hspi->Instance->CR1, ((hspi->Init.Mode & (SPI_CR1_MSTR | SPI_CR1_SSI)) |
                                  (hspi->Init.Direction & (SPI_CR1_RXONLY | SPI_CR1_BIDIMODE)) |
                                  (hspi->Init.DataSize & SPI_CR1_DFF) |
                                  (hspi->Init.CLKPolarity & SPI_CR1_CPOL) |
                                  (hspi->Init.CLKPhase & SPI_CR1_CPHA) |
                                  (hspi->Init.NSS & SPI_CR1_SSM) |
                                  (hspi->Init.BaudRatePrescaler & SPI_CR1_BR_Msk) |
                                  (hspi->Init.FirstBit  & SPI_CR1_LSBFIRST) |
                                  (hspi->Init.CRCCalculation & SPI_CR1_CRCEN)));
 
  /* Configure : NSS management, TI Mode */
  WRITE_REG(hspi->Instance->CR2, (((hspi->Init.NSS >> 16U) & SPI_CR2_SSOE) | (hspi->Init.TIMode & SPI_CR2_FRF)));
 
#if (USE_SPI_CRC != 0U)
  /*---------------------------- SPIx CRCPOLY Configuration ------------------*/
  /* Configure : CRC Polynomial */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    WRITE_REG(hspi->Instance->CRCPR, (hspi->Init.CRCPolynomial & SPI_CRCPR_CRCPOLY_Msk));
  }
#endif /* USE_SPI_CRC */
 
#if defined(SPI_I2SCFGR_I2SMOD)
  /* Activate the SPI mode (Make sure that I2SMOD bit in I2SCFGR register is reset) */
  CLEAR_BIT(hspi->Instance->I2SCFGR, SPI_I2SCFGR_I2SMOD);
#endif /* SPI_I2SCFGR_I2SMOD */
 
  hspi->ErrorCode = HAL_SPI_ERROR_NONE;
  hspi->State     = HAL_SPI_STATE_READY;
 
  return HAL_OK;
}
 
HAL_StatusTypeDef HAL_SPI_DeInit(SPI_HandleTypeDef *hspi)
{
  /* Check the SPI handle allocation */
  if (hspi == NULL)
  {
    return HAL_ERROR;
  }
 
  /* Check SPI Instance parameter */
  assert_param(IS_SPI_ALL_INSTANCE(hspi->Instance));
 
  hspi->State = HAL_SPI_STATE_BUSY;
 
  /* Disable the SPI Peripheral Clock */
  __HAL_SPI_DISABLE(hspi);
 
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
  if (hspi->MspDeInitCallback == NULL)
  {
    hspi->MspDeInitCallback = HAL_SPI_MspDeInit; /* Legacy weak MspDeInit  */
  }
 
  /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */
  hspi->MspDeInitCallback(hspi);
#else
  /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */
  HAL_SPI_MspDeInit(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
 
  hspi->ErrorCode = HAL_SPI_ERROR_NONE;
  hspi->State = HAL_SPI_STATE_RESET;
 
  /* Release Lock */
  __HAL_UNLOCK(hspi);
 
  return HAL_OK;
}
 
__weak void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hspi);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SPI_MspInit should be implemented in the user file
   */
}
 
__weak void HAL_SPI_MspDeInit(SPI_HandleTypeDef *hspi)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hspi);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SPI_MspDeInit should be implemented in the user file
   */
}
 
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
HAL_StatusTypeDef HAL_SPI_RegisterCallback(SPI_HandleTypeDef *hspi, HAL_SPI_CallbackIDTypeDef CallbackID,
                                           pSPI_CallbackTypeDef pCallback)
{
  HAL_StatusTypeDef status = HAL_OK;
 
  if (pCallback == NULL)
  {
    /* Update the error code */
    hspi->ErrorCode |= HAL_SPI_ERROR_INVALID_CALLBACK;
 
    return HAL_ERROR;
  }
  /* Process locked */
  __HAL_LOCK(hspi);
 
  if (HAL_SPI_STATE_READY == hspi->State)
  {
    switch (CallbackID)
    {
      case HAL_SPI_TX_COMPLETE_CB_ID :
        hspi->TxCpltCallback = pCallback;
        break;
 
      case HAL_SPI_RX_COMPLETE_CB_ID :
        hspi->RxCpltCallback = pCallback;
        break;
 
      case HAL_SPI_TX_RX_COMPLETE_CB_ID :
        hspi->TxRxCpltCallback = pCallback;
        break;
 
      case HAL_SPI_TX_HALF_COMPLETE_CB_ID :
        hspi->TxHalfCpltCallback = pCallback;
        break;
 
      case HAL_SPI_RX_HALF_COMPLETE_CB_ID :
        hspi->RxHalfCpltCallback = pCallback;
        break;
 
      case HAL_SPI_TX_RX_HALF_COMPLETE_CB_ID :
        hspi->TxRxHalfCpltCallback = pCallback;
        break;
 
      case HAL_SPI_ERROR_CB_ID :
        hspi->ErrorCallback = pCallback;
        break;
 
      case HAL_SPI_ABORT_CB_ID :
        hspi->AbortCpltCallback = pCallback;
        break;
 
      case HAL_SPI_MSPINIT_CB_ID :
        hspi->MspInitCallback = pCallback;
        break;
 
      case HAL_SPI_MSPDEINIT_CB_ID :
        hspi->MspDeInitCallback = pCallback;
        break;
 
      default :
        /* Update the error code */
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_INVALID_CALLBACK);
 
        /* Return error status */
        status =  HAL_ERROR;
        break;
    }
  }
  else if (HAL_SPI_STATE_RESET == hspi->State)
  {
    switch (CallbackID)
    {
      case HAL_SPI_MSPINIT_CB_ID :
        hspi->MspInitCallback = pCallback;
        break;
 
      case HAL_SPI_MSPDEINIT_CB_ID :
        hspi->MspDeInitCallback = pCallback;
        break;
 
      default :
        /* Update the error code */
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_INVALID_CALLBACK);
 
        /* Return error status */
        status =  HAL_ERROR;
        break;
    }
  }
  else
  {
    /* Update the error code */
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_INVALID_CALLBACK);
 
    /* Return error status */
    status =  HAL_ERROR;
  }
 
  /* Release Lock */
  __HAL_UNLOCK(hspi);
  return status;
}
 
HAL_StatusTypeDef HAL_SPI_UnRegisterCallback(SPI_HandleTypeDef *hspi, HAL_SPI_CallbackIDTypeDef CallbackID)
{
  HAL_StatusTypeDef status = HAL_OK;
 
  /* Process locked */
  __HAL_LOCK(hspi);
 
  if (HAL_SPI_STATE_READY == hspi->State)
  {
    switch (CallbackID)
    {
      case HAL_SPI_TX_COMPLETE_CB_ID :
        hspi->TxCpltCallback = HAL_SPI_TxCpltCallback;             /* Legacy weak TxCpltCallback       */
        break;
 
      case HAL_SPI_RX_COMPLETE_CB_ID :
        hspi->RxCpltCallback = HAL_SPI_RxCpltCallback;             /* Legacy weak RxCpltCallback       */
        break;
 
      case HAL_SPI_TX_RX_COMPLETE_CB_ID :
        hspi->TxRxCpltCallback = HAL_SPI_TxRxCpltCallback;         /* Legacy weak TxRxCpltCallback     */
        break;
 
      case HAL_SPI_TX_HALF_COMPLETE_CB_ID :
        hspi->TxHalfCpltCallback = HAL_SPI_TxHalfCpltCallback;     /* Legacy weak TxHalfCpltCallback   */
        break;
 
      case HAL_SPI_RX_HALF_COMPLETE_CB_ID :
        hspi->RxHalfCpltCallback = HAL_SPI_RxHalfCpltCallback;     /* Legacy weak RxHalfCpltCallback   */
        break;
 
      case HAL_SPI_TX_RX_HALF_COMPLETE_CB_ID :
        hspi->TxRxHalfCpltCallback = HAL_SPI_TxRxHalfCpltCallback; /* Legacy weak TxRxHalfCpltCallback */
        break;
 
      case HAL_SPI_ERROR_CB_ID :
        hspi->ErrorCallback = HAL_SPI_ErrorCallback;               /* Legacy weak ErrorCallback        */
        break;
 
      case HAL_SPI_ABORT_CB_ID :
        hspi->AbortCpltCallback = HAL_SPI_AbortCpltCallback;       /* Legacy weak AbortCpltCallback    */
        break;
 
      case HAL_SPI_MSPINIT_CB_ID :
        hspi->MspInitCallback = HAL_SPI_MspInit;                   /* Legacy weak MspInit              */
        break;
 
      case HAL_SPI_MSPDEINIT_CB_ID :
        hspi->MspDeInitCallback = HAL_SPI_MspDeInit;               /* Legacy weak MspDeInit            */
        break;
 
      default :
        /* Update the error code */
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_INVALID_CALLBACK);
 
        /* Return error status */
        status =  HAL_ERROR;
        break;
    }
  }
  else if (HAL_SPI_STATE_RESET == hspi->State)
  {
    switch (CallbackID)
    {
      case HAL_SPI_MSPINIT_CB_ID :
        hspi->MspInitCallback = HAL_SPI_MspInit;                   /* Legacy weak MspInit              */
        break;
 
      case HAL_SPI_MSPDEINIT_CB_ID :
        hspi->MspDeInitCallback = HAL_SPI_MspDeInit;               /* Legacy weak MspDeInit            */
        break;
 
      default :
        /* Update the error code */
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_INVALID_CALLBACK);
 
        /* Return error status */
        status =  HAL_ERROR;
        break;
    }
  }
  else
  {
    /* Update the error code */
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_INVALID_CALLBACK);
 
    /* Return error status */
    status =  HAL_ERROR;
  }
 
  /* Release Lock */
  __HAL_UNLOCK(hspi);
  return status;
}
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
HAL_StatusTypeDef HAL_SPI_Transmit(SPI_HandleTypeDef *hspi, const uint8_t *pData, uint16_t Size, uint32_t Timeout)
{
  uint32_t tickstart;
  uint16_t initial_TxXferCount;
 
  /* Check Direction parameter */
  assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction));
 
  /* Init tickstart for timeout management*/
  tickstart = HAL_GetTick();
  initial_TxXferCount = Size;
 
  if (hspi->State != HAL_SPI_STATE_READY)
  {
    return HAL_BUSY;
  }
 
  if ((pData == NULL) || (Size == 0U))
  {
    return HAL_ERROR;
  }
 
  /* Process Locked */
  __HAL_LOCK(hspi);
 
  /* Set the transaction information */
  hspi->State       = HAL_SPI_STATE_BUSY_TX;
  hspi->ErrorCode   = HAL_SPI_ERROR_NONE;
  hspi->pTxBuffPtr  = (const uint8_t *)pData;
  hspi->TxXferSize  = Size;
  hspi->TxXferCount = Size;
 
  /*Init field not used in handle to zero */
  hspi->pRxBuffPtr  = (uint8_t *)NULL;
  hspi->RxXferSize  = 0U;
  hspi->RxXferCount = 0U;
  hspi->TxISR       = NULL;
  hspi->RxISR       = NULL;
 
  /* Configure communication direction : 1Line */
  if (hspi->Init.Direction == SPI_DIRECTION_1LINE)
  {
    /* Disable SPI Peripheral before set 1Line direction (BIDIOE bit) */
    __HAL_SPI_DISABLE(hspi);
    SPI_1LINE_TX(hspi);
  }
 
#if (USE_SPI_CRC != 0U)
  /* Reset CRC Calculation */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    SPI_RESET_CRC(hspi);
  }
#endif /* USE_SPI_CRC */
 
  /* Check if the SPI is already enabled */
  if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
  {
    /* Enable SPI peripheral */
    __HAL_SPI_ENABLE(hspi);
  }
 
  /* Transmit data in 16 Bit mode */
  if (hspi->Init.DataSize == SPI_DATASIZE_16BIT)
  {
    if ((hspi->Init.Mode == SPI_MODE_SLAVE) || (initial_TxXferCount == 0x01U))
    {
      hspi->Instance->DR = *((const uint16_t *)hspi->pTxBuffPtr);
      hspi->pTxBuffPtr += sizeof(uint16_t);
      hspi->TxXferCount--;
    }
    /* Transmit data in 16 Bit mode */
    while (hspi->TxXferCount > 0U)
    {
      /* Wait until TXE flag is set to send data */
      if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE))
      {
        hspi->Instance->DR = *((const uint16_t *)hspi->pTxBuffPtr);
        hspi->pTxBuffPtr += sizeof(uint16_t);
        hspi->TxXferCount--;
      }
      else
      {
        /* Timeout management */
        if ((((HAL_GetTick() - tickstart) >=  Timeout) && (Timeout != HAL_MAX_DELAY)) || (Timeout == 0U))
        {
          hspi->State = HAL_SPI_STATE_READY;
          __HAL_UNLOCK(hspi);
          return HAL_TIMEOUT;
        }
      }
    }
  }
  /* Transmit data in 8 Bit mode */
  else
  {
    if ((hspi->Init.Mode == SPI_MODE_SLAVE) || (initial_TxXferCount == 0x01U))
    {
      *((__IO uint8_t *)&hspi->Instance->DR) = *((const uint8_t *)hspi->pTxBuffPtr);
      hspi->pTxBuffPtr += sizeof(uint8_t);
      hspi->TxXferCount--;
    }
    while (hspi->TxXferCount > 0U)
    {
      /* Wait until TXE flag is set to send data */
      if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE))
      {
        *((__IO uint8_t *)&hspi->Instance->DR) = *((const uint8_t *)hspi->pTxBuffPtr);
        hspi->pTxBuffPtr += sizeof(uint8_t);
        hspi->TxXferCount--;
      }
      else
      {
        /* Timeout management */
        if ((((HAL_GetTick() - tickstart) >=  Timeout) && (Timeout != HAL_MAX_DELAY)) || (Timeout == 0U))
        {
          hspi->State = HAL_SPI_STATE_READY;
          __HAL_UNLOCK(hspi);
          return HAL_TIMEOUT;
        }
      }
    }
  }
#if (USE_SPI_CRC != 0U)
  /* Enable CRC Transmission */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
  }
#endif /* USE_SPI_CRC */
 
  /* Check the end of the transaction */
  if (SPI_EndRxTxTransaction(hspi, Timeout, tickstart) != HAL_OK)
  {
    hspi->ErrorCode = HAL_SPI_ERROR_FLAG;
  }
 
  /* Clear overrun flag in 2 Lines communication mode because received is not read */
  if (hspi->Init.Direction == SPI_DIRECTION_2LINES)
  {
    __HAL_SPI_CLEAR_OVRFLAG(hspi);
  }
 
  hspi->State = HAL_SPI_STATE_READY;
  /* Process Unlocked */
  __HAL_UNLOCK(hspi);
 
  if (hspi->ErrorCode != HAL_SPI_ERROR_NONE)
  {
    return HAL_ERROR;
  }
  else
  {
    return HAL_OK;
  }
}
 
HAL_StatusTypeDef HAL_SPI_Receive(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout)
{
#if (USE_SPI_CRC != 0U)
  __IO uint32_t tmpreg = 0U;
#endif /* USE_SPI_CRC */
  uint32_t tickstart;
 
  if (hspi->State != HAL_SPI_STATE_READY)
  {
    return HAL_BUSY;
  }
 
  if ((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES))
  {
    hspi->State = HAL_SPI_STATE_BUSY_RX;
    /* Call transmit-receive function to send Dummy data on Tx line and generate clock on CLK line */
    return HAL_SPI_TransmitReceive(hspi, pData, pData, Size, Timeout);
  }
 
  /* Init tickstart for timeout management*/
  tickstart = HAL_GetTick();
 
  if ((pData == NULL) || (Size == 0U))
  {
    return HAL_ERROR;
  }
 
  /* Process Locked */
  __HAL_LOCK(hspi);
 
  /* Set the transaction information */
  hspi->State       = HAL_SPI_STATE_BUSY_RX;
  hspi->ErrorCode   = HAL_SPI_ERROR_NONE;
  hspi->pRxBuffPtr  = (uint8_t *)pData;
  hspi->RxXferSize  = Size;
  hspi->RxXferCount = Size;
 
  /*Init field not used in handle to zero */
  hspi->pTxBuffPtr  = (uint8_t *)NULL;
  hspi->TxXferSize  = 0U;
  hspi->TxXferCount = 0U;
  hspi->RxISR       = NULL;
  hspi->TxISR       = NULL;
 
#if (USE_SPI_CRC != 0U)
  /* Reset CRC Calculation */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    SPI_RESET_CRC(hspi);
    /* this is done to handle the CRCNEXT before the latest data */
    hspi->RxXferCount--;
  }
#endif /* USE_SPI_CRC */
 
  /* Configure communication direction: 1Line */
  if (hspi->Init.Direction == SPI_DIRECTION_1LINE)
  {
    /* Disable SPI Peripheral before set 1Line direction (BIDIOE bit) */
    __HAL_SPI_DISABLE(hspi);
    SPI_1LINE_RX(hspi);
  }
 
  /* Check if the SPI is already enabled */
  if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
  {
    /* Enable SPI peripheral */
    __HAL_SPI_ENABLE(hspi);
  }
 
  /* Receive data in 8 Bit mode */
  if (hspi->Init.DataSize == SPI_DATASIZE_8BIT)
  {
    /* Transfer loop */
    while (hspi->RxXferCount > 0U)
    {
      /* Check the RXNE flag */
      if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE))
      {
        /* read the received data */
        (* (uint8_t *)hspi->pRxBuffPtr) = *(__IO uint8_t *)&hspi->Instance->DR;
        hspi->pRxBuffPtr += sizeof(uint8_t);
        hspi->RxXferCount--;
      }
      else
      {
        /* Timeout management */
        if ((((HAL_GetTick() - tickstart) >=  Timeout) && (Timeout != HAL_MAX_DELAY)) || (Timeout == 0U))
        {
          hspi->State = HAL_SPI_STATE_READY;
          __HAL_UNLOCK(hspi);
          return HAL_TIMEOUT;
        }
      }
    }
  }
  else
  {
    /* Transfer loop */
    while (hspi->RxXferCount > 0U)
    {
      /* Check the RXNE flag */
      if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE))
      {
        *((uint16_t *)hspi->pRxBuffPtr) = (uint16_t)hspi->Instance->DR;
        hspi->pRxBuffPtr += sizeof(uint16_t);
        hspi->RxXferCount--;
      }
      else
      {
        /* Timeout management */
        if ((((HAL_GetTick() - tickstart) >=  Timeout) && (Timeout != HAL_MAX_DELAY)) || (Timeout == 0U))
        {
          hspi->State = HAL_SPI_STATE_READY;
          __HAL_UNLOCK(hspi);
          return HAL_TIMEOUT;
        }
      }
    }
  }
 
#if (USE_SPI_CRC != 0U)
  /* Handle the CRC Transmission */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    /* freeze the CRC before the latest data */
    SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
 
    /* Read the latest data */
    if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, Timeout, tickstart) != HAL_OK)
    {
      /* the latest data has not been received */
      __HAL_UNLOCK(hspi);
      return HAL_TIMEOUT;
    }
 
    /* Receive last data in 16 Bit mode */
    if (hspi->Init.DataSize == SPI_DATASIZE_16BIT)
    {
      *((uint16_t *)hspi->pRxBuffPtr) = (uint16_t)hspi->Instance->DR;
    }
    /* Receive last data in 8 Bit mode */
    else
    {
      (*(uint8_t *)hspi->pRxBuffPtr) = *(__IO uint8_t *)&hspi->Instance->DR;
    }
 
    /* Wait the CRC data */
    if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, Timeout, tickstart) != HAL_OK)
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
      hspi->State = HAL_SPI_STATE_READY;
      __HAL_UNLOCK(hspi);
      return HAL_TIMEOUT;
    }
 
    /* Read CRC to Flush DR and RXNE flag */
    tmpreg = READ_REG(hspi->Instance->DR);
    /* To avoid GCC warning */
    UNUSED(tmpreg);
  }
#endif /* USE_SPI_CRC */
 
  /* Check the end of the transaction */
  if (SPI_EndRxTransaction(hspi, Timeout, tickstart) != HAL_OK)
  {
    hspi->ErrorCode = HAL_SPI_ERROR_FLAG;
  }
 
#if (USE_SPI_CRC != 0U)
  /* Check if CRC error occurred */
  if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR))
  {
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
    __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
  }
#endif /* USE_SPI_CRC */
 
  hspi->State = HAL_SPI_STATE_READY;
  /* Unlock the process */
  __HAL_UNLOCK(hspi);
  if (hspi->ErrorCode != HAL_SPI_ERROR_NONE)
  {
    return HAL_ERROR;
  }
  else
  {
    return HAL_OK;
  }
}
 
HAL_StatusTypeDef HAL_SPI_TransmitReceive(SPI_HandleTypeDef *hspi, const uint8_t *pTxData, uint8_t *pRxData,
                                          uint16_t Size, uint32_t Timeout)
{
  uint16_t             initial_TxXferCount;
  uint32_t             tmp_mode;
  HAL_SPI_StateTypeDef tmp_state;
  uint32_t             tickstart;
#if (USE_SPI_CRC != 0U)
  __IO uint32_t tmpreg = 0U;
#endif /* USE_SPI_CRC */
 
  /* Variable used to alternate Rx and Tx during transfer */
  uint32_t             txallowed = 1U;
 
  /* Check Direction parameter */
  assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction));
 
  /* Init tickstart for timeout management*/
  tickstart = HAL_GetTick();
 
  /* Init temporary variables */
  tmp_state           = hspi->State;
  tmp_mode            = hspi->Init.Mode;
  initial_TxXferCount = Size;
 
  if (!((tmp_state == HAL_SPI_STATE_READY) || \
        ((tmp_mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && (tmp_state == HAL_SPI_STATE_BUSY_RX))))
  {
    return HAL_BUSY;
  }
 
  if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U))
  {
    return HAL_ERROR;
  }
 
  /* Process Locked */
  __HAL_LOCK(hspi);
 
  /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */
  if (hspi->State != HAL_SPI_STATE_BUSY_RX)
  {
    hspi->State = HAL_SPI_STATE_BUSY_TX_RX;
  }
 
  /* Set the transaction information */
  hspi->ErrorCode   = HAL_SPI_ERROR_NONE;
  hspi->pRxBuffPtr  = (uint8_t *)pRxData;
  hspi->RxXferCount = Size;
  hspi->RxXferSize  = Size;
  hspi->pTxBuffPtr  = (const uint8_t *)pTxData;
  hspi->TxXferCount = Size;
  hspi->TxXferSize  = Size;
 
  /*Init field not used in handle to zero */
  hspi->RxISR       = NULL;
  hspi->TxISR       = NULL;
 
#if (USE_SPI_CRC != 0U)
  /* Reset CRC Calculation */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    SPI_RESET_CRC(hspi);
  }
#endif /* USE_SPI_CRC */
 
  /* 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) || (initial_TxXferCount == 0x01U))
    {
      hspi->Instance->DR = *((const uint16_t *)hspi->pTxBuffPtr);
      hspi->pTxBuffPtr += sizeof(uint16_t);
      hspi->TxXferCount--;
 
#if (USE_SPI_CRC != 0U)
      /* Enable CRC Transmission */
      if ((hspi->TxXferCount == 0U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE))
      {
        SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
      }
#endif /* USE_SPI_CRC */
 
    }
    while ((hspi->TxXferCount > 0U) || (hspi->RxXferCount > 0U))
    {
      /* Check TXE flag */
      if ((__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE)) && (hspi->TxXferCount > 0U) && (txallowed == 1U))
      {
        hspi->Instance->DR = *((const uint16_t *)hspi->pTxBuffPtr);
        hspi->pTxBuffPtr += sizeof(uint16_t);
        hspi->TxXferCount--;
        /* Next Data is a reception (Rx). Tx not allowed */
        txallowed = 0U;
 
#if (USE_SPI_CRC != 0U)
        /* Enable CRC Transmission */
        if ((hspi->TxXferCount == 0U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE))
        {
          SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
        }
#endif /* USE_SPI_CRC */
      }
 
      /* Check RXNE flag */
      if ((__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE)) && (hspi->RxXferCount > 0U))
      {
        *((uint16_t *)hspi->pRxBuffPtr) = (uint16_t)hspi->Instance->DR;
        hspi->pRxBuffPtr += sizeof(uint16_t);
        hspi->RxXferCount--;
        /* Next Data is a Transmission (Tx). Tx is allowed */
        txallowed = 1U;
      }
      if (((HAL_GetTick() - tickstart) >=  Timeout) && (Timeout != HAL_MAX_DELAY))
      {
        hspi->State = HAL_SPI_STATE_READY;
        __HAL_UNLOCK(hspi);
        return HAL_TIMEOUT;
      }
    }
  }
  /* Transmit and Receive data in 8 Bit mode */
  else
  {
    if ((hspi->Init.Mode == SPI_MODE_SLAVE) || (initial_TxXferCount == 0x01U))
    {
      *((__IO uint8_t *)&hspi->Instance->DR) = *((const uint8_t *)hspi->pTxBuffPtr);
      hspi->pTxBuffPtr += sizeof(uint8_t);
      hspi->TxXferCount--;
 
#if (USE_SPI_CRC != 0U)
      /* Enable CRC Transmission */
      if ((hspi->TxXferCount == 0U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE))
      {
        SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
      }
#endif /* USE_SPI_CRC */
    }
    while ((hspi->TxXferCount > 0U) || (hspi->RxXferCount > 0U))
    {
      /* Check TXE flag */
      if ((__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE)) && (hspi->TxXferCount > 0U) && (txallowed == 1U))
      {
        *(__IO uint8_t *)&hspi->Instance->DR = *((const uint8_t *)hspi->pTxBuffPtr);
        hspi->pTxBuffPtr++;
        hspi->TxXferCount--;
        /* Next Data is a reception (Rx). Tx not allowed */
        txallowed = 0U;
 
#if (USE_SPI_CRC != 0U)
        /* Enable CRC Transmission */
        if ((hspi->TxXferCount == 0U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE))
        {
          SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
        }
#endif /* USE_SPI_CRC */
      }
 
      /* Wait until RXNE flag is reset */
      if ((__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE)) && (hspi->RxXferCount > 0U))
      {
        (*(uint8_t *)hspi->pRxBuffPtr) = hspi->Instance->DR;
        hspi->pRxBuffPtr++;
        hspi->RxXferCount--;
        /* Next Data is a Transmission (Tx). Tx is allowed */
        txallowed = 1U;
      }
      if ((((HAL_GetTick() - tickstart) >=  Timeout) && ((Timeout != HAL_MAX_DELAY))) || (Timeout == 0U))
      {
        hspi->State = HAL_SPI_STATE_READY;
        __HAL_UNLOCK(hspi);
        return HAL_TIMEOUT;
      }
    }
  }
 
#if (USE_SPI_CRC != 0U)
  /* Read CRC from DR to close CRC calculation process */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    /* Wait until TXE flag */
    if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, Timeout, tickstart) != HAL_OK)
    {
      /* Error on the CRC reception */
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
      hspi->State = HAL_SPI_STATE_READY;
      __HAL_UNLOCK(hspi);
      return HAL_TIMEOUT;
    }
    /* Read CRC */
    tmpreg = READ_REG(hspi->Instance->DR);
    /* To avoid GCC warning */
    UNUSED(tmpreg);
  }
 
  /* Check if CRC error occurred */
  if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR))
  {
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
    /* Clear CRC Flag */
    __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
    __HAL_UNLOCK(hspi);
    return HAL_ERROR;
  }
#endif /* USE_SPI_CRC */
 
  /* Check the end of the transaction */
  if (SPI_EndRxTxTransaction(hspi, Timeout, tickstart) != HAL_OK)
  {
    hspi->ErrorCode = HAL_SPI_ERROR_FLAG;
    __HAL_UNLOCK(hspi);
    return HAL_ERROR;
  }
 
  /* 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;
  /* Unlock the process */
  __HAL_UNLOCK(hspi);
 
  if (hspi->ErrorCode != HAL_SPI_ERROR_NONE)
  {
    return HAL_ERROR;
  }
  else
  {
    return HAL_OK;
  }
}
 
HAL_StatusTypeDef HAL_SPI_Transmit_IT(SPI_HandleTypeDef *hspi, const uint8_t *pData, uint16_t Size)
{
 
  /* Check Direction parameter */
  assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction));
 
 
  if ((pData == NULL) || (Size == 0U))
  {
    return HAL_ERROR;
  }
 
  if (hspi->State != HAL_SPI_STATE_READY)
  {
    return HAL_BUSY;
  }
 
  /* Process Locked */
  __HAL_LOCK(hspi);
 
  /* Set the transaction information */
  hspi->State       = HAL_SPI_STATE_BUSY_TX;
  hspi->ErrorCode   = HAL_SPI_ERROR_NONE;
  hspi->pTxBuffPtr  = (const uint8_t *)pData;
  hspi->TxXferSize  = Size;
  hspi->TxXferCount = Size;
 
  /* Init field not used in handle to zero */
  hspi->pRxBuffPtr  = (uint8_t *)NULL;
  hspi->RxXferSize  = 0U;
  hspi->RxXferCount = 0U;
  hspi->RxISR       = NULL;
 
  /* Set the function for IT treatment */
  if (hspi->Init.DataSize > SPI_DATASIZE_8BIT)
  {
    hspi->TxISR = SPI_TxISR_16BIT;
  }
  else
  {
    hspi->TxISR = SPI_TxISR_8BIT;
  }
 
  /* Configure communication direction : 1Line */
  if (hspi->Init.Direction == SPI_DIRECTION_1LINE)
  {
    /* Disable SPI Peripheral before set 1Line direction (BIDIOE bit) */
    __HAL_SPI_DISABLE(hspi);
    SPI_1LINE_TX(hspi);
  }
 
#if (USE_SPI_CRC != 0U)
  /* Reset CRC Calculation */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    SPI_RESET_CRC(hspi);
  }
#endif /* USE_SPI_CRC */
 
  /* Check if the SPI is already enabled */
  if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
  {
    /* Enable SPI peripheral */
    __HAL_SPI_ENABLE(hspi);
  }
 
  /* Process Unlocked */
  __HAL_UNLOCK(hspi);
  /* Enable TXE and ERR interrupt */
  __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_ERR));
 
  return HAL_OK;
}
 
HAL_StatusTypeDef HAL_SPI_Receive_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size)
{
 
  if (hspi->State != HAL_SPI_STATE_READY)
  {
    return HAL_BUSY;
  }
 
  if ((hspi->Init.Direction == SPI_DIRECTION_2LINES) && (hspi->Init.Mode == SPI_MODE_MASTER))
  {
    hspi->State = HAL_SPI_STATE_BUSY_RX;
    /* Call transmit-receive function to send Dummy data on Tx line and generate clock on CLK line */
    return HAL_SPI_TransmitReceive_IT(hspi, pData, pData, Size);
  }
 
 
  if ((pData == NULL) || (Size == 0U))
  {
    return HAL_ERROR;
  }
 
  /* Process Locked */
  __HAL_LOCK(hspi);
 
  /* Set the transaction information */
  hspi->State       = HAL_SPI_STATE_BUSY_RX;
  hspi->ErrorCode   = HAL_SPI_ERROR_NONE;
  hspi->pRxBuffPtr  = (uint8_t *)pData;
  hspi->RxXferSize  = Size;
  hspi->RxXferCount = Size;
 
  /* Init field not used in handle to zero */
  hspi->pTxBuffPtr  = (uint8_t *)NULL;
  hspi->TxXferSize  = 0U;
  hspi->TxXferCount = 0U;
  hspi->TxISR       = NULL;
 
  /* Set the function for IT treatment */
  if (hspi->Init.DataSize > SPI_DATASIZE_8BIT)
  {
    hspi->RxISR = SPI_RxISR_16BIT;
  }
  else
  {
    hspi->RxISR = SPI_RxISR_8BIT;
  }
 
  /* Configure communication direction : 1Line */
  if (hspi->Init.Direction == SPI_DIRECTION_1LINE)
  {
    /* Disable SPI Peripheral before set 1Line direction (BIDIOE bit) */
    __HAL_SPI_DISABLE(hspi);
    SPI_1LINE_RX(hspi);
  }
 
#if (USE_SPI_CRC != 0U)
  /* Reset CRC Calculation */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    SPI_RESET_CRC(hspi);
  }
#endif /* USE_SPI_CRC */
 
  /* Note : The SPI must be enabled after unlocking current process
            to avoid the risk of SPI interrupt handle execution before current
            process unlock */
 
  /* Check if the SPI is already enabled */
  if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
  {
    /* Enable SPI peripheral */
    __HAL_SPI_ENABLE(hspi);
  }
 
  /* Process Unlocked */
  __HAL_UNLOCK(hspi);
  /* Enable RXNE and ERR interrupt */
  __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR));
 
  return HAL_OK;
}
 
HAL_StatusTypeDef HAL_SPI_TransmitReceive_IT(SPI_HandleTypeDef *hspi, const uint8_t *pTxData, uint8_t *pRxData,
                                             uint16_t Size)
{
  uint32_t             tmp_mode;
  HAL_SPI_StateTypeDef tmp_state;
 
  /* Check Direction parameter */
  assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction));
 
  /* Init temporary variables */
  tmp_state           = hspi->State;
  tmp_mode            = hspi->Init.Mode;
 
  if (!((tmp_state == HAL_SPI_STATE_READY) || \
        ((tmp_mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && (tmp_state == HAL_SPI_STATE_BUSY_RX))))
  {
    return HAL_BUSY;
  }
 
  if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U))
  {
    return HAL_ERROR;
  }
 
  /* Process locked */
  __HAL_LOCK(hspi);
 
  /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */
  if (hspi->State != HAL_SPI_STATE_BUSY_RX)
  {
    hspi->State = HAL_SPI_STATE_BUSY_TX_RX;
  }
 
  /* Set the transaction information */
  hspi->ErrorCode   = HAL_SPI_ERROR_NONE;
  hspi->pTxBuffPtr  = (const uint8_t *)pTxData;
  hspi->TxXferSize  = Size;
  hspi->TxXferCount = Size;
  hspi->pRxBuffPtr  = (uint8_t *)pRxData;
  hspi->RxXferSize  = Size;
  hspi->RxXferCount = Size;
 
  /* Set the function for IT treatment */
  if (hspi->Init.DataSize > SPI_DATASIZE_8BIT)
  {
    hspi->RxISR     = SPI_2linesRxISR_16BIT;
    hspi->TxISR     = SPI_2linesTxISR_16BIT;
  }
  else
  {
    hspi->RxISR     = SPI_2linesRxISR_8BIT;
    hspi->TxISR     = SPI_2linesTxISR_8BIT;
  }
 
#if (USE_SPI_CRC != 0U)
  /* Reset CRC Calculation */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    SPI_RESET_CRC(hspi);
  }
#endif /* USE_SPI_CRC */
 
 
  /* Check if the SPI is already enabled */
  if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
  {
    /* Enable SPI peripheral */
    __HAL_SPI_ENABLE(hspi);
  }
 
  /* Process Unlocked */
  __HAL_UNLOCK(hspi);
  /* Enable TXE, RXNE and ERR interrupt */
  __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_RXNE | SPI_IT_ERR));
 
  return HAL_OK;
}
 
HAL_StatusTypeDef HAL_SPI_Transmit_DMA(SPI_HandleTypeDef *hspi, const uint8_t *pData, uint16_t Size)
{
 
  /* Check tx dma handle */
  assert_param(IS_SPI_DMA_HANDLE(hspi->hdmatx));
 
  /* Check Direction parameter */
  assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction));
 
  if (hspi->State != HAL_SPI_STATE_READY)
  {
    return HAL_BUSY;
  }
 
  if ((pData == NULL) || (Size == 0U))
  {
    return HAL_ERROR;
  }
 
  /* Process Locked */
  __HAL_LOCK(hspi);
 
  /* Set the transaction information */
  hspi->State       = HAL_SPI_STATE_BUSY_TX;
  hspi->ErrorCode   = HAL_SPI_ERROR_NONE;
  hspi->pTxBuffPtr  = (const uint8_t *)pData;
  hspi->TxXferSize  = Size;
  hspi->TxXferCount = Size;
 
  /* Init field not used in handle to zero */
  hspi->pRxBuffPtr  = (uint8_t *)NULL;
  hspi->TxISR       = NULL;
  hspi->RxISR       = NULL;
  hspi->RxXferSize  = 0U;
  hspi->RxXferCount = 0U;
 
  /* Configure communication direction : 1Line */
  if (hspi->Init.Direction == SPI_DIRECTION_1LINE)
  {
    /* Disable SPI Peripheral before set 1Line direction (BIDIOE bit) */
    __HAL_SPI_DISABLE(hspi);
    SPI_1LINE_TX(hspi);
  }
 
#if (USE_SPI_CRC != 0U)
  /* Reset CRC Calculation */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    SPI_RESET_CRC(hspi);
  }
#endif /* USE_SPI_CRC */
 
  /* Set the SPI TxDMA Half transfer complete callback */
  hspi->hdmatx->XferHalfCpltCallback = SPI_DMAHalfTransmitCplt;
 
  /* Set the SPI TxDMA transfer complete callback */
  hspi->hdmatx->XferCpltCallback = SPI_DMATransmitCplt;
 
  /* Set the DMA error callback */
  hspi->hdmatx->XferErrorCallback = SPI_DMAError;
 
  /* Set the DMA AbortCpltCallback */
  hspi->hdmatx->XferAbortCallback = NULL;
 
  /* Enable the Tx DMA Stream/Channel */
  if (HAL_OK != HAL_DMA_Start_IT(hspi->hdmatx, (uint32_t)hspi->pTxBuffPtr, (uint32_t)&hspi->Instance->DR,
                                 hspi->TxXferCount))
  {
    /* Update SPI error code */
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA);
    /* Process Unlocked */
    __HAL_UNLOCK(hspi);
    return HAL_ERROR;
  }
 
  /* Check if the SPI is already enabled */
  if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
  {
    /* Enable SPI peripheral */
    __HAL_SPI_ENABLE(hspi);
  }
 
  /* Process Unlocked */
  __HAL_UNLOCK(hspi);
 
  /* Enable the SPI Error Interrupt Bit */
  __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_ERR));
 
  /* Enable Tx DMA Request */
  SET_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN);
 
  return HAL_OK;
}
 
HAL_StatusTypeDef HAL_SPI_Receive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size)
{
  /* Check rx dma handle */
  assert_param(IS_SPI_DMA_HANDLE(hspi->hdmarx));
 
  if (hspi->State != HAL_SPI_STATE_READY)
  {
    return HAL_BUSY;
  }
 
  if ((hspi->Init.Direction == SPI_DIRECTION_2LINES) && (hspi->Init.Mode == SPI_MODE_MASTER))
  {
    hspi->State = HAL_SPI_STATE_BUSY_RX;
 
    /* Check tx dma handle */
    assert_param(IS_SPI_DMA_HANDLE(hspi->hdmatx));
 
    /* Call transmit-receive function to send Dummy data on Tx line and generate clock on CLK line */
    return HAL_SPI_TransmitReceive_DMA(hspi, pData, pData, Size);
  }
 
  if ((pData == NULL) || (Size == 0U))
  {
    return HAL_ERROR;
  }
 
  /* Process Locked */
  __HAL_LOCK(hspi);
  
  /* Set the transaction information */
  hspi->State       = HAL_SPI_STATE_BUSY_RX;
  hspi->ErrorCode   = HAL_SPI_ERROR_NONE;
  hspi->pRxBuffPtr  = (uint8_t *)pData;
  hspi->RxXferSize  = Size;
  hspi->RxXferCount = Size;
 
  /*Init field not used in handle to zero */
  hspi->RxISR       = NULL;
  hspi->TxISR       = NULL;
  hspi->TxXferSize  = 0U;
  hspi->TxXferCount = 0U;
 
  /* Configure communication direction : 1Line */
  if (hspi->Init.Direction == SPI_DIRECTION_1LINE)
  {
    /* Disable SPI Peripheral before set 1Line direction (BIDIOE bit) */
    __HAL_SPI_DISABLE(hspi);
    SPI_1LINE_RX(hspi);
  }
 
#if (USE_SPI_CRC != 0U)
  /* Reset CRC Calculation */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    SPI_RESET_CRC(hspi);
  }
#endif /* USE_SPI_CRC */
 
  /* Set the SPI RxDMA Half transfer complete callback */
  hspi->hdmarx->XferHalfCpltCallback = SPI_DMAHalfReceiveCplt;
 
  /* Set the SPI Rx DMA transfer complete callback */
  hspi->hdmarx->XferCpltCallback = SPI_DMAReceiveCplt;
 
  /* Set the DMA error callback */
  hspi->hdmarx->XferErrorCallback = SPI_DMAError;
 
  /* Set the DMA AbortCpltCallback */
  hspi->hdmarx->XferAbortCallback = NULL;
 
  /* Enable the Rx DMA Stream/Channel  */
  if (HAL_OK != HAL_DMA_Start_IT(hspi->hdmarx, (uint32_t)&hspi->Instance->DR, (uint32_t)hspi->pRxBuffPtr,
                                 hspi->RxXferCount))
  {
    /* Update SPI error code */
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA);
    /* Process Unlocked */
    __HAL_UNLOCK(hspi);
    return HAL_ERROR;
  }
 
  /* Check if the SPI is already enabled */
  if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
  {
    /* Enable SPI peripheral */
    __HAL_SPI_ENABLE(hspi);
  }
 
  /* Process Unlocked */
  __HAL_UNLOCK(hspi);
 
  /* Enable the SPI Error Interrupt Bit */
  __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_ERR));
 
  /* Enable Rx DMA Request */
  SET_BIT(hspi->Instance->CR2, SPI_CR2_RXDMAEN);
 
  return HAL_OK;
}
 
HAL_StatusTypeDef HAL_SPI_TransmitReceive_DMA(SPI_HandleTypeDef *hspi, const uint8_t *pTxData, uint8_t *pRxData,
                                              uint16_t Size)
{
  uint32_t             tmp_mode;
  HAL_SPI_StateTypeDef tmp_state;
 
  /* Check rx & tx dma handles */
  assert_param(IS_SPI_DMA_HANDLE(hspi->hdmarx));
  assert_param(IS_SPI_DMA_HANDLE(hspi->hdmatx));
 
  /* Check Direction parameter */
  assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction));
 
  /* Init temporary variables */
  tmp_state           = hspi->State;
  tmp_mode            = hspi->Init.Mode;
 
  if (!((tmp_state == HAL_SPI_STATE_READY) ||
        ((tmp_mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && (tmp_state == HAL_SPI_STATE_BUSY_RX))))
  {
    return HAL_BUSY;
  }
 
  if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U))
  {
    return HAL_ERROR;
  }
 
  /* Process locked */
  __HAL_LOCK(hspi);
 
  /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */
  if (hspi->State != HAL_SPI_STATE_BUSY_RX)
  {
    hspi->State = HAL_SPI_STATE_BUSY_TX_RX;
  }
 
  /* Set the transaction information */
  hspi->ErrorCode   = HAL_SPI_ERROR_NONE;
  hspi->pTxBuffPtr  = (const uint8_t *)pTxData;
  hspi->TxXferSize  = Size;
  hspi->TxXferCount = Size;
  hspi->pRxBuffPtr  = (uint8_t *)pRxData;
  hspi->RxXferSize  = Size;
  hspi->RxXferCount = Size;
 
  /* Init field not used in handle to zero */
  hspi->RxISR       = NULL;
  hspi->TxISR       = NULL;
 
#if (USE_SPI_CRC != 0U)
  /* Reset CRC Calculation */
  if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
  {
    SPI_RESET_CRC(hspi);
  }
#endif /* USE_SPI_CRC */
 
  /* Check if we are in Rx only or in Rx/Tx Mode and configure the DMA transfer complete callback */
  if (hspi->State == HAL_SPI_STATE_BUSY_RX)
  {
    /* Set the SPI Rx DMA Half transfer complete callback */
    hspi->hdmarx->XferHalfCpltCallback = SPI_DMAHalfReceiveCplt;
    hspi->hdmarx->XferCpltCallback     = SPI_DMAReceiveCplt;
  }
  else
  {
    /* Set the SPI Tx/Rx DMA Half transfer complete callback */
    hspi->hdmarx->XferHalfCpltCallback = SPI_DMAHalfTransmitReceiveCplt;
    hspi->hdmarx->XferCpltCallback     = SPI_DMATransmitReceiveCplt;
  }
 
  /* Set the DMA error callback */
  hspi->hdmarx->XferErrorCallback = SPI_DMAError;
 
  /* Set the DMA AbortCpltCallback */
  hspi->hdmarx->XferAbortCallback = NULL;
 
  /* Enable the Rx DMA Stream/Channel  */
  if (HAL_OK != HAL_DMA_Start_IT(hspi->hdmarx, (uint32_t)&hspi->Instance->DR, (uint32_t)hspi->pRxBuffPtr,
                                 hspi->RxXferCount))
  {
    /* Update SPI error code */
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA);
    /* Process Unlocked */
    __HAL_UNLOCK(hspi);
    return HAL_ERROR;
  }
 
  /* Enable Rx DMA Request */
  SET_BIT(hspi->Instance->CR2, SPI_CR2_RXDMAEN);
 
  /* Set the SPI Tx DMA transfer complete callback as NULL because the communication closing
  is performed in DMA reception complete callback  */
  hspi->hdmatx->XferHalfCpltCallback = NULL;
  hspi->hdmatx->XferCpltCallback     = NULL;
  hspi->hdmatx->XferErrorCallback    = NULL;
  hspi->hdmatx->XferAbortCallback    = NULL;
 
  /* Enable the Tx DMA Stream/Channel  */
  if (HAL_OK != HAL_DMA_Start_IT(hspi->hdmatx, (uint32_t)hspi->pTxBuffPtr, (uint32_t)&hspi->Instance->DR,
                                 hspi->TxXferCount))
  {
    /* Update SPI error code */
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA);
    /* Process Unlocked */
    __HAL_UNLOCK(hspi);
    return HAL_ERROR;
  }
 
  /* Check if the SPI is already enabled */
  if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE)
  {
    /* Enable SPI peripheral */
    __HAL_SPI_ENABLE(hspi);
  }
 
  /* Process Unlocked */
  __HAL_UNLOCK(hspi);
 
  /* Enable the SPI Error Interrupt Bit */
  __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_ERR));
 
  /* Enable Tx DMA Request */
  SET_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN);
 
  return HAL_OK;
}
 
HAL_StatusTypeDef HAL_SPI_Abort(SPI_HandleTypeDef *hspi)
{
  HAL_StatusTypeDef errorcode;
  __IO uint32_t count;
  __IO uint32_t resetcount;
 
  /* Initialized local variable  */
  errorcode = HAL_OK;
  resetcount = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U);
  count = resetcount;
 
  /* Clear ERRIE interrupt to avoid error interrupts generation during Abort procedure */
  CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_ERRIE);
 
  /* Disable TXEIE, RXNEIE and ERRIE(mode fault event, overrun error, TI frame error) interrupts */
  if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXEIE))
  {
    hspi->TxISR = SPI_AbortTx_ISR;
    /* Wait HAL_SPI_STATE_ABORT state */
    do
    {
      if (count == 0U)
      {
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT);
        break;
      }
      count--;
    } while (hspi->State != HAL_SPI_STATE_ABORT);
    /* Reset Timeout Counter */
    count = resetcount;
  }
 
  if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXNEIE))
  {
    hspi->RxISR = SPI_AbortRx_ISR;
    /* Wait HAL_SPI_STATE_ABORT state */
    do
    {
      if (count == 0U)
      {
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT);
        break;
      }
      count--;
    } while (hspi->State != HAL_SPI_STATE_ABORT);
    /* Reset Timeout Counter */
    count = resetcount;
  }
 
  /* Disable the SPI DMA Tx request if enabled */
  if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXDMAEN))
  {
    /* Abort the SPI DMA Tx Stream/Channel : use blocking DMA Abort API (no callback) */
    if (hspi->hdmatx != NULL)
    {
      /* Set the SPI DMA Abort callback :
      will lead to call HAL_SPI_AbortCpltCallback() at end of DMA abort procedure */
      hspi->hdmatx->XferAbortCallback = NULL;
 
      /* Abort DMA Tx Handle linked to SPI Peripheral */
      if (HAL_DMA_Abort(hspi->hdmatx) != HAL_OK)
      {
        hspi->ErrorCode = HAL_SPI_ERROR_ABORT;
      }
 
      /* Disable Tx DMA Request */
      CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_TXDMAEN));
 
      /* Wait until TXE flag is set */
      do
      {
        if (count == 0U)
        {
          SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT);
          break;
        }
        count--;
      } while ((hspi->Instance->SR & SPI_FLAG_TXE) == RESET);
    }
  }
 
  /* Disable the SPI DMA Rx request if enabled */
  if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXDMAEN))
  {
    /* Abort the SPI DMA Rx Stream/Channel : use blocking DMA Abort API (no callback) */
    if (hspi->hdmarx != NULL)
    {
      /* Set the SPI DMA Abort callback :
      will lead to call HAL_SPI_AbortCpltCallback() at end of DMA abort procedure */
      hspi->hdmarx->XferAbortCallback = NULL;
 
      /* Abort DMA Rx Handle linked to SPI Peripheral */
      if (HAL_DMA_Abort(hspi->hdmarx) != HAL_OK)
      {
        hspi->ErrorCode = HAL_SPI_ERROR_ABORT;
      }
 
      /* Disable peripheral */
      __HAL_SPI_DISABLE(hspi);
 
      /* Disable Rx DMA Request */
      CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_RXDMAEN));
    }
  }
  /* Reset Tx and Rx transfer counters */
  hspi->RxXferCount = 0U;
  hspi->TxXferCount = 0U;
 
  /* Check error during Abort procedure */
  if (hspi->ErrorCode == HAL_SPI_ERROR_ABORT)
  {
    /* return HAL_Error in case of error during Abort procedure */
    errorcode = HAL_ERROR;
  }
  else
  {
    /* Reset errorCode */
    hspi->ErrorCode = HAL_SPI_ERROR_NONE;
  }
 
  /* Clear the Error flags in the SR register */
  __HAL_SPI_CLEAR_OVRFLAG(hspi);
  __HAL_SPI_CLEAR_FREFLAG(hspi);
 
  /* Restore hspi->state to ready */
  hspi->State = HAL_SPI_STATE_READY;
 
  return errorcode;
}
 
HAL_StatusTypeDef HAL_SPI_Abort_IT(SPI_HandleTypeDef *hspi)
{
  HAL_StatusTypeDef errorcode;
  uint32_t abortcplt ;
  __IO uint32_t count;
  __IO uint32_t resetcount;
 
  /* Initialized local variable  */
  errorcode = HAL_OK;
  abortcplt = 1U;
  resetcount = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U);
  count = resetcount;
 
  /* Clear ERRIE interrupt to avoid error interrupts generation during Abort procedure */
  CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_ERRIE);
 
  /* Change Rx and Tx Irq Handler to Disable TXEIE, RXNEIE and ERRIE interrupts */
  if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXEIE))
  {
    hspi->TxISR = SPI_AbortTx_ISR;
    /* Wait HAL_SPI_STATE_ABORT state */
    do
    {
      if (count == 0U)
      {
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT);
        break;
      }
      count--;
    } while (hspi->State != HAL_SPI_STATE_ABORT);
    /* Reset Timeout Counter */
    count = resetcount;
  }
 
  if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXNEIE))
  {
    hspi->RxISR = SPI_AbortRx_ISR;
    /* Wait HAL_SPI_STATE_ABORT state */
    do
    {
      if (count == 0U)
      {
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT);
        break;
      }
      count--;
    } while (hspi->State != HAL_SPI_STATE_ABORT);
    /* Reset Timeout Counter */
    count = resetcount;
  }
 
  /* If DMA Tx and/or DMA Rx Handles are associated to SPI Handle, DMA Abort complete callbacks should be initialised
     before any call to DMA Abort functions */
  /* DMA Tx Handle is valid */
  if (hspi->hdmatx != NULL)
  {
    /* Set DMA Abort Complete callback if UART DMA Tx request if enabled.
       Otherwise, set it to NULL */
    if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXDMAEN))
    {
      hspi->hdmatx->XferAbortCallback = SPI_DMATxAbortCallback;
    }
    else
    {
      hspi->hdmatx->XferAbortCallback = NULL;
    }
  }
  /* DMA Rx Handle is valid */
  if (hspi->hdmarx != NULL)
  {
    /* Set DMA Abort Complete callback if UART DMA Rx request if enabled.
       Otherwise, set it to NULL */
    if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXDMAEN))
    {
      hspi->hdmarx->XferAbortCallback = SPI_DMARxAbortCallback;
    }
    else
    {
      hspi->hdmarx->XferAbortCallback = NULL;
    }
  }
 
  /* Disable the SPI DMA Tx request if enabled */
  if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXDMAEN))
  {
    /* Abort the SPI DMA Tx Stream/Channel */
    if (hspi->hdmatx != NULL)
    {
      /* Abort DMA Tx Handle linked to SPI Peripheral */
      if (HAL_DMA_Abort_IT(hspi->hdmatx) != HAL_OK)
      {
        hspi->hdmatx->XferAbortCallback = NULL;
        hspi->ErrorCode = HAL_SPI_ERROR_ABORT;
      }
      else
      {
        abortcplt = 0U;
      }
    }
  }
  /* Disable the SPI DMA Rx request if enabled */
  if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXDMAEN))
  {
    /* Abort the SPI DMA Rx Stream/Channel */
    if (hspi->hdmarx != NULL)
    {
      /* Abort DMA Rx Handle linked to SPI Peripheral */
      if (HAL_DMA_Abort_IT(hspi->hdmarx) !=  HAL_OK)
      {
        hspi->hdmarx->XferAbortCallback = NULL;
        hspi->ErrorCode = HAL_SPI_ERROR_ABORT;
      }
      else
      {
        abortcplt = 0U;
      }
    }
  }
 
  if (abortcplt == 1U)
  {
    /* Reset Tx and Rx transfer counters */
    hspi->RxXferCount = 0U;
    hspi->TxXferCount = 0U;
 
    /* Check error during Abort procedure */
    if (hspi->ErrorCode == HAL_SPI_ERROR_ABORT)
    {
      /* return HAL_Error in case of error during Abort procedure */
      errorcode = HAL_ERROR;
    }
    else
    {
      /* Reset errorCode */
      hspi->ErrorCode = HAL_SPI_ERROR_NONE;
    }
 
    /* Clear the Error flags in the SR register */
    __HAL_SPI_CLEAR_OVRFLAG(hspi);
    __HAL_SPI_CLEAR_FREFLAG(hspi);
 
    /* Restore hspi->State to Ready */
    hspi->State = HAL_SPI_STATE_READY;
 
    /* As no DMA to be aborted, call directly user Abort complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
    hspi->AbortCpltCallback(hspi);
#else
    HAL_SPI_AbortCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
  }
 
  return errorcode;
}
 
HAL_StatusTypeDef HAL_SPI_DMAPause(SPI_HandleTypeDef *hspi)
{
  /* Process Locked */
  __HAL_LOCK(hspi);
 
  /* Disable the SPI DMA Tx & Rx requests */
  CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN);
 
  /* Process Unlocked */
  __HAL_UNLOCK(hspi);
 
  return HAL_OK;
}
 
HAL_StatusTypeDef HAL_SPI_DMAResume(SPI_HandleTypeDef *hspi)
{
  /* Process Locked */
  __HAL_LOCK(hspi);
 
  /* Enable the SPI DMA Tx & Rx requests */
  SET_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN);
 
  /* Process Unlocked */
  __HAL_UNLOCK(hspi);
 
  return HAL_OK;
}
 
HAL_StatusTypeDef HAL_SPI_DMAStop(SPI_HandleTypeDef *hspi)
{
  HAL_StatusTypeDef errorcode = HAL_OK;
  /* The Lock is not implemented on this API to allow the user application
     to call the HAL SPI API under callbacks HAL_SPI_TxCpltCallback() or HAL_SPI_RxCpltCallback() or HAL_SPI_TxRxCpltCallback():
     when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated
     and the correspond call back is executed HAL_SPI_TxCpltCallback() or HAL_SPI_RxCpltCallback() or HAL_SPI_TxRxCpltCallback()
     */
 
  /* Abort the SPI DMA tx Stream/Channel  */
  if (hspi->hdmatx != NULL)
  {
    if (HAL_OK != HAL_DMA_Abort(hspi->hdmatx))
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA);
      errorcode = HAL_ERROR;
    }
  }
  /* Abort the SPI DMA rx Stream/Channel  */
  if (hspi->hdmarx != NULL)
  {
    if (HAL_OK != HAL_DMA_Abort(hspi->hdmarx))
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA);
      errorcode = HAL_ERROR;
    }
  }
 
  /* Disable the SPI DMA Tx & Rx requests */
  CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN);
  hspi->State = HAL_SPI_STATE_READY;
  return errorcode;
}
 
void HAL_SPI_IRQHandler(SPI_HandleTypeDef *hspi)
{
  uint32_t itsource = hspi->Instance->CR2;
  uint32_t itflag   = hspi->Instance->SR;
 
  /* SPI in mode Receiver ----------------------------------------------------*/
  if ((SPI_CHECK_FLAG(itflag, SPI_FLAG_OVR) == RESET) &&
      (SPI_CHECK_FLAG(itflag, SPI_FLAG_RXNE) != RESET) && (SPI_CHECK_IT_SOURCE(itsource, SPI_IT_RXNE) != RESET))
  {
    hspi->RxISR(hspi);
    return;
  }
 
  /* SPI in mode Transmitter -------------------------------------------------*/
  if ((SPI_CHECK_FLAG(itflag, SPI_FLAG_TXE) != RESET) && (SPI_CHECK_IT_SOURCE(itsource, SPI_IT_TXE) != RESET))
  {
    hspi->TxISR(hspi);
    return;
  }
 
  /* SPI in Error Treatment --------------------------------------------------*/
  if (((SPI_CHECK_FLAG(itflag, SPI_FLAG_MODF) != RESET) || (SPI_CHECK_FLAG(itflag, SPI_FLAG_OVR) != RESET)
       || (SPI_CHECK_FLAG(itflag, SPI_FLAG_FRE) != RESET)) && (SPI_CHECK_IT_SOURCE(itsource, SPI_IT_ERR) != RESET))
  {
    /* SPI Overrun error interrupt occurred ----------------------------------*/
    if (SPI_CHECK_FLAG(itflag, SPI_FLAG_OVR) != RESET)
    {
      if (hspi->State != HAL_SPI_STATE_BUSY_TX)
      {
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_OVR);
        __HAL_SPI_CLEAR_OVRFLAG(hspi);
      }
      else
      {
        __HAL_SPI_CLEAR_OVRFLAG(hspi);
        return;
      }
    }
 
    /* SPI Mode Fault error interrupt occurred -------------------------------*/
    if (SPI_CHECK_FLAG(itflag, SPI_FLAG_MODF) != RESET)
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_MODF);
      __HAL_SPI_CLEAR_MODFFLAG(hspi);
    }
 
    /* SPI Frame error interrupt occurred ------------------------------------*/
    if (SPI_CHECK_FLAG(itflag, SPI_FLAG_FRE) != RESET)
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FRE);
      __HAL_SPI_CLEAR_FREFLAG(hspi);
    }
 
    if (hspi->ErrorCode != HAL_SPI_ERROR_NONE)
    {
      /* Disable all interrupts */
      __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE | SPI_IT_TXE | SPI_IT_ERR);
 
      hspi->State = HAL_SPI_STATE_READY;
      /* Disable the SPI DMA requests if enabled */
      if ((HAL_IS_BIT_SET(itsource, SPI_CR2_TXDMAEN)) || (HAL_IS_BIT_SET(itsource, SPI_CR2_RXDMAEN)))
      {
        CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN));
 
        /* Abort the SPI DMA Rx channel */
        if (hspi->hdmarx != NULL)
        {
          /* Set the SPI DMA Abort callback :
          will lead to call HAL_SPI_ErrorCallback() at end of DMA abort procedure */
          hspi->hdmarx->XferAbortCallback = SPI_DMAAbortOnError;
          if (HAL_OK != HAL_DMA_Abort_IT(hspi->hdmarx))
          {
            SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT);
          }
        }
        /* Abort the SPI DMA Tx channel */
        if (hspi->hdmatx != NULL)
        {
          /* Set the SPI DMA Abort callback :
          will lead to call HAL_SPI_ErrorCallback() at end of DMA abort procedure */
          hspi->hdmatx->XferAbortCallback = SPI_DMAAbortOnError;
          if (HAL_OK != HAL_DMA_Abort_IT(hspi->hdmatx))
          {
            SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT);
          }
        }
      }
      else
      {
        /* Call user error callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
        hspi->ErrorCallback(hspi);
#else
        HAL_SPI_ErrorCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
      }
    }
    return;
  }
}
 
__weak void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hspi);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SPI_TxCpltCallback should be implemented in the user file
   */
}
 
__weak void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hspi);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SPI_RxCpltCallback should be implemented in the user file
   */
}
 
__weak void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hspi);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SPI_TxRxCpltCallback should be implemented in the user file
   */
}
 
__weak void HAL_SPI_TxHalfCpltCallback(SPI_HandleTypeDef *hspi)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hspi);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SPI_TxHalfCpltCallback should be implemented in the user file
   */
}
 
__weak void HAL_SPI_RxHalfCpltCallback(SPI_HandleTypeDef *hspi)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hspi);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SPI_RxHalfCpltCallback() should be implemented in the user file
   */
}
 
__weak void HAL_SPI_TxRxHalfCpltCallback(SPI_HandleTypeDef *hspi)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hspi);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SPI_TxRxHalfCpltCallback() should be implemented in the user file
   */
}
 
__weak void HAL_SPI_ErrorCallback(SPI_HandleTypeDef *hspi)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hspi);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SPI_ErrorCallback should be implemented in the user file
   */
  /* NOTE : The ErrorCode parameter in the hspi handle is updated by the SPI processes
            and user can use HAL_SPI_GetError() API to check the latest error occurred
   */
}
 
__weak void HAL_SPI_AbortCpltCallback(SPI_HandleTypeDef *hspi)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hspi);
 
  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SPI_AbortCpltCallback can be implemented in the user file.
   */
}
 
HAL_SPI_StateTypeDef HAL_SPI_GetState(const SPI_HandleTypeDef *hspi)
{
  /* Return SPI handle state */
  return hspi->State;
}
 
uint32_t HAL_SPI_GetError(const SPI_HandleTypeDef *hspi)
{
  /* Return SPI ErrorCode */
  return hspi->ErrorCode;
}
 
static void SPI_DMATransmitCplt(DMA_HandleTypeDef *hdma)
{
  SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */
  uint32_t tickstart;
 
  /* Init tickstart for timeout management*/
  tickstart = HAL_GetTick();
 
  /* DMA Normal Mode */
  if ((hdma->Instance->CR & DMA_SxCR_CIRC) != DMA_SxCR_CIRC)
  {
    /* Disable ERR interrupt */
    __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR);
 
    /* Disable Tx DMA Request */
    CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN);
 
    /* Check the end of the transaction */
    if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK)
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
    }
 
    /* Clear overrun flag in 2 Lines communication mode because received data is not read */
    if (hspi->Init.Direction == SPI_DIRECTION_2LINES)
    {
      __HAL_SPI_CLEAR_OVRFLAG(hspi);
    }
 
    hspi->TxXferCount = 0U;
    hspi->State = HAL_SPI_STATE_READY;
 
    if (hspi->ErrorCode != HAL_SPI_ERROR_NONE)
    {
      /* Call user error callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
      hspi->ErrorCallback(hspi);
#else
      HAL_SPI_ErrorCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
      return;
    }
  }
  /* Call user Tx complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
  hspi->TxCpltCallback(hspi);
#else
  HAL_SPI_TxCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
}
 
static void SPI_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
{
  SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */
  uint32_t tickstart;
#if (USE_SPI_CRC != 0U)
  __IO uint32_t tmpreg = 0U;
#endif /* USE_SPI_CRC */
 
  /* Init tickstart for timeout management*/
  tickstart = HAL_GetTick();
 
  /* DMA Normal Mode */
  if ((hdma->Instance->CR & DMA_SxCR_CIRC) != DMA_SxCR_CIRC)
  {
    /* Disable ERR interrupt */
    __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR);
 
#if (USE_SPI_CRC != 0U)
    /* CRC handling */
    if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
    {
      /* Wait until RXNE flag */
      if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK)
      {
        /* Error on the CRC reception */
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
      }
      /* Read CRC */
      tmpreg = READ_REG(hspi->Instance->DR);
      /* To avoid GCC warning */
      UNUSED(tmpreg);
    }
#endif /* USE_SPI_CRC */
 
    /* Check if we are in Master RX 2 line mode */
    if ((hspi->Init.Direction == SPI_DIRECTION_2LINES) && (hspi->Init.Mode == SPI_MODE_MASTER))
    {
      /* Disable Rx/Tx DMA Request (done by default to handle the case master rx direction 2 lines) */
      CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN);
    }
    else
    {
      /* Normal case */
      CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_RXDMAEN);
    }
 
    /* Check the end of the transaction */
    if (SPI_EndRxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK)
    {
      hspi->ErrorCode = HAL_SPI_ERROR_FLAG;
    }
 
    hspi->RxXferCount = 0U;
    hspi->State = HAL_SPI_STATE_READY;
 
#if (USE_SPI_CRC != 0U)
    /* Check if CRC error occurred */
    if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR))
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
      __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
    }
#endif /* USE_SPI_CRC */
 
    if (hspi->ErrorCode != HAL_SPI_ERROR_NONE)
    {
      /* Call user error callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
      hspi->ErrorCallback(hspi);
#else
      HAL_SPI_ErrorCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
      return;
    }
  }
  /* Call user Rx complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
  hspi->RxCpltCallback(hspi);
#else
  HAL_SPI_RxCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
}
 
static void SPI_DMATransmitReceiveCplt(DMA_HandleTypeDef *hdma)
{
  SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */
  uint32_t tickstart;
#if (USE_SPI_CRC != 0U)
  __IO uint32_t tmpreg = 0U;
#endif /* USE_SPI_CRC */
 
  /* Init tickstart for timeout management*/
  tickstart = HAL_GetTick();
 
  /* DMA Normal Mode */
  if ((hdma->Instance->CR & DMA_SxCR_CIRC) != DMA_SxCR_CIRC)
  {
    /* Disable ERR interrupt */
    __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR);
 
#if (USE_SPI_CRC != 0U)
    /* CRC handling */
    if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
    {
      /* Wait the CRC data */
      if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK)
      {
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
      }
      /* Read CRC to Flush DR and RXNE flag */
      tmpreg = READ_REG(hspi->Instance->DR);
      /* To avoid GCC warning */
      UNUSED(tmpreg);
    }
#endif /* USE_SPI_CRC */
 
    /* Check the end of the transaction */
    if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK)
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
    }
 
    /* Disable Rx/Tx DMA Request */
    CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN);
 
    hspi->TxXferCount = 0U;
    hspi->RxXferCount = 0U;
    hspi->State = HAL_SPI_STATE_READY;
 
#if (USE_SPI_CRC != 0U)
    /* Check if CRC error occurred */
    if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR))
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
      __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
    }
#endif /* USE_SPI_CRC */
 
    if (hspi->ErrorCode != HAL_SPI_ERROR_NONE)
    {
      /* Call user error callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
      hspi->ErrorCallback(hspi);
#else
      HAL_SPI_ErrorCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
      return;
    }
  }
  /* Call user TxRx complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
  hspi->TxRxCpltCallback(hspi);
#else
  HAL_SPI_TxRxCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
}
 
static void SPI_DMAHalfTransmitCplt(DMA_HandleTypeDef *hdma)
{
  SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */
 
  /* Call user Tx half complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
  hspi->TxHalfCpltCallback(hspi);
#else
  HAL_SPI_TxHalfCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
}
 
static void SPI_DMAHalfReceiveCplt(DMA_HandleTypeDef *hdma)
{
  SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */
 
  /* Call user Rx half complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
  hspi->RxHalfCpltCallback(hspi);
#else
  HAL_SPI_RxHalfCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
}
 
static void SPI_DMAHalfTransmitReceiveCplt(DMA_HandleTypeDef *hdma)
{
  SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */
 
  /* Call user TxRx half complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
  hspi->TxRxHalfCpltCallback(hspi);
#else
  HAL_SPI_TxRxHalfCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
}
 
static void SPI_DMAError(DMA_HandleTypeDef *hdma)
{
  SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */
 
  /* Stop the disable DMA transfer on SPI side */
  CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN);
 
  SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA);
  hspi->State = HAL_SPI_STATE_READY;
  /* Call user error callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
  hspi->ErrorCallback(hspi);
#else
  HAL_SPI_ErrorCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
}
 
static void SPI_DMAAbortOnError(DMA_HandleTypeDef *hdma)
{
  SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */
  hspi->RxXferCount = 0U;
  hspi->TxXferCount = 0U;
 
  /* Call user error callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
  hspi->ErrorCallback(hspi);
#else
  HAL_SPI_ErrorCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
}
 
static void SPI_DMATxAbortCallback(DMA_HandleTypeDef *hdma)
{
  SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */
  __IO uint32_t count;
 
  hspi->hdmatx->XferAbortCallback = NULL;
  count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U);
 
  /* Disable Tx DMA Request */
  CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN);
 
  /* Wait until TXE flag is set */
  do
  {
    if (count == 0U)
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT);
      break;
    }
    count--;
  } while ((hspi->Instance->SR & SPI_FLAG_TXE) == RESET);
 
  /* Check if an Abort process is still ongoing */
  if (hspi->hdmarx != NULL)
  {
    if (hspi->hdmarx->XferAbortCallback != NULL)
    {
      return;
    }
  }
 
  /* No Abort process still ongoing : All DMA Stream/Channel are aborted, call user Abort Complete callback */
  hspi->RxXferCount = 0U;
  hspi->TxXferCount = 0U;
 
  /* Check no error during Abort procedure */
  if (hspi->ErrorCode != HAL_SPI_ERROR_ABORT)
  {
    /* Reset errorCode */
    hspi->ErrorCode = HAL_SPI_ERROR_NONE;
  }
 
  /* Clear the Error flags in the SR register */
  __HAL_SPI_CLEAR_OVRFLAG(hspi);
  __HAL_SPI_CLEAR_FREFLAG(hspi);
 
  /* Restore hspi->State to Ready */
  hspi->State  = HAL_SPI_STATE_READY;
 
  /* Call user Abort complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
  hspi->AbortCpltCallback(hspi);
#else
  HAL_SPI_AbortCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
}
 
static void SPI_DMARxAbortCallback(DMA_HandleTypeDef *hdma)
{
  SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)(((DMA_HandleTypeDef *)hdma)->Parent); /* Derogation MISRAC2012-Rule-11.5 */
 
  /* Disable SPI Peripheral */
  __HAL_SPI_DISABLE(hspi);
 
  hspi->hdmarx->XferAbortCallback = NULL;
 
  /* Disable Rx DMA Request */
  CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_RXDMAEN);
 
  /* Check Busy flag */
  if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK)
  {
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT);
  }
 
  /* Check if an Abort process is still ongoing */
  if (hspi->hdmatx != NULL)
  {
    if (hspi->hdmatx->XferAbortCallback != NULL)
    {
      return;
    }
  }
 
  /* No Abort process still ongoing : All DMA Stream/Channel are aborted, call user Abort Complete callback */
  hspi->RxXferCount = 0U;
  hspi->TxXferCount = 0U;
 
  /* Check no error during Abort procedure */
  if (hspi->ErrorCode != HAL_SPI_ERROR_ABORT)
  {
    /* Reset errorCode */
    hspi->ErrorCode = HAL_SPI_ERROR_NONE;
  }
 
  /* Clear the Error flags in the SR register */
  __HAL_SPI_CLEAR_OVRFLAG(hspi);
  __HAL_SPI_CLEAR_FREFLAG(hspi);
 
  /* Restore hspi->State to Ready */
  hspi->State  = HAL_SPI_STATE_READY;
 
  /* Call user Abort complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
  hspi->AbortCpltCallback(hspi);
#else
  HAL_SPI_AbortCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
}
 
static void SPI_2linesRxISR_8BIT(struct __SPI_HandleTypeDef *hspi)
{
  /* Receive data in 8bit mode */
  *hspi->pRxBuffPtr = *((__IO uint8_t *)&hspi->Instance->DR);
  hspi->pRxBuffPtr++;
  hspi->RxXferCount--;
 
  /* Check end of the reception */
  if (hspi->RxXferCount == 0U)
  {
#if (USE_SPI_CRC != 0U)
    if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
    {
      hspi->RxISR =  SPI_2linesRxISR_8BITCRC;
      return;
    }
#endif /* USE_SPI_CRC */
 
    /* Disable RXNE  and ERR interrupt */
    __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR));
 
    if (hspi->TxXferCount == 0U)
    {
      SPI_CloseRxTx_ISR(hspi);
    }
  }
}
 
#if (USE_SPI_CRC != 0U)
static void SPI_2linesRxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi)
{
  __IO uint8_t  *ptmpreg8;
  __IO uint8_t  tmpreg8 = 0;
 
  /* Initialize the 8bit temporary pointer */
  ptmpreg8 = (__IO uint8_t *)&hspi->Instance->DR;
  /* Read 8bit CRC to flush Data Register */
  tmpreg8 = *ptmpreg8;
  /* To avoid GCC warning */
  UNUSED(tmpreg8);
 
  /* Disable RXNE and ERR interrupt */
  __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR));
 
  if (hspi->TxXferCount == 0U)
  {
    SPI_CloseRxTx_ISR(hspi);
  }
}
#endif /* USE_SPI_CRC */
 
static void SPI_2linesTxISR_8BIT(struct __SPI_HandleTypeDef *hspi)
{
  *(__IO uint8_t *)&hspi->Instance->DR = *((const uint8_t *)hspi->pTxBuffPtr);
  hspi->pTxBuffPtr++;
  hspi->TxXferCount--;
 
  /* Check the end of the transmission */
  if (hspi->TxXferCount == 0U)
  {
#if (USE_SPI_CRC != 0U)
    if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
    {
      /* Set CRC Next Bit to send CRC */
      SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
      /* Disable TXE interrupt */
      __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE);
      return;
    }
#endif /* USE_SPI_CRC */
 
    /* Disable TXE interrupt */
    __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE);
 
    if (hspi->RxXferCount == 0U)
    {
      SPI_CloseRxTx_ISR(hspi);
    }
  }
}
 
static void SPI_2linesRxISR_16BIT(struct __SPI_HandleTypeDef *hspi)
{
  /* Receive data in 16 Bit mode */
  *((uint16_t *)hspi->pRxBuffPtr) = (uint16_t)(hspi->Instance->DR);
  hspi->pRxBuffPtr += sizeof(uint16_t);
  hspi->RxXferCount--;
 
  if (hspi->RxXferCount == 0U)
  {
#if (USE_SPI_CRC != 0U)
    if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
    {
      hspi->RxISR =  SPI_2linesRxISR_16BITCRC;
      return;
    }
#endif /* USE_SPI_CRC */
 
    /* Disable RXNE interrupt */
    __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE);
 
    if (hspi->TxXferCount == 0U)
    {
      SPI_CloseRxTx_ISR(hspi);
    }
  }
}
 
#if (USE_SPI_CRC != 0U)
static void SPI_2linesRxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi)
{
  __IO uint32_t tmpreg = 0U;
 
  /* Read 16bit CRC to flush Data Register */
  tmpreg = READ_REG(hspi->Instance->DR);
  /* To avoid GCC warning */
  UNUSED(tmpreg);
 
  /* Disable RXNE interrupt */
  __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE);
 
  SPI_CloseRxTx_ISR(hspi);
}
#endif /* USE_SPI_CRC */
 
static void SPI_2linesTxISR_16BIT(struct __SPI_HandleTypeDef *hspi)
{
  /* Transmit data in 16 Bit mode */
  hspi->Instance->DR = *((const uint16_t *)hspi->pTxBuffPtr);
  hspi->pTxBuffPtr += sizeof(uint16_t);
  hspi->TxXferCount--;
 
  /* Enable CRC Transmission */
  if (hspi->TxXferCount == 0U)
  {
#if (USE_SPI_CRC != 0U)
    if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
    {
      /* Set CRC Next Bit to send CRC */
      SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
      /* Disable TXE interrupt */
      __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE);
      return;
    }
#endif /* USE_SPI_CRC */
 
    /* Disable TXE interrupt */
    __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE);
 
    if (hspi->RxXferCount == 0U)
    {
      SPI_CloseRxTx_ISR(hspi);
    }
  }
}
 
#if (USE_SPI_CRC != 0U)
static void SPI_RxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi)
{
  __IO uint8_t  *ptmpreg8;
  __IO uint8_t  tmpreg8 = 0;
 
  /* Initialize the 8bit temporary pointer */
  ptmpreg8 = (__IO uint8_t *)&hspi->Instance->DR;
  /* Read 8bit CRC to flush Data Register */
  tmpreg8 = *ptmpreg8;
  /* To avoid GCC warning */
  UNUSED(tmpreg8);
 
  SPI_CloseRx_ISR(hspi);
}
#endif /* USE_SPI_CRC */
 
static void SPI_RxISR_8BIT(struct __SPI_HandleTypeDef *hspi)
{
  *hspi->pRxBuffPtr = (*(__IO uint8_t *)&hspi->Instance->DR);
  hspi->pRxBuffPtr++;
  hspi->RxXferCount--;
 
#if (USE_SPI_CRC != 0U)
  /* Enable CRC Transmission */
  if ((hspi->RxXferCount == 1U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE))
  {
    SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
  }
#endif /* USE_SPI_CRC */
 
  if (hspi->RxXferCount == 0U)
  {
#if (USE_SPI_CRC != 0U)
    if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
    {
      hspi->RxISR =  SPI_RxISR_8BITCRC;
      return;
    }
#endif /* USE_SPI_CRC */
    SPI_CloseRx_ISR(hspi);
  }
}
 
#if (USE_SPI_CRC != 0U)
static void SPI_RxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi)
{
  __IO uint32_t tmpreg = 0U;
 
  /* Read 16bit CRC to flush Data Register */
  tmpreg = READ_REG(hspi->Instance->DR);
  /* To avoid GCC warning */
  UNUSED(tmpreg);
 
  /* Disable RXNE and ERR interrupt */
  __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR));
 
  SPI_CloseRx_ISR(hspi);
}
#endif /* USE_SPI_CRC */
 
static void SPI_RxISR_16BIT(struct __SPI_HandleTypeDef *hspi)
{
  *((uint16_t *)hspi->pRxBuffPtr) = (uint16_t)(hspi->Instance->DR);
  hspi->pRxBuffPtr += sizeof(uint16_t);
  hspi->RxXferCount--;
 
#if (USE_SPI_CRC != 0U)
  /* Enable CRC Transmission */
  if ((hspi->RxXferCount == 1U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE))
  {
    SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
  }
#endif /* USE_SPI_CRC */
 
  if (hspi->RxXferCount == 0U)
  {
#if (USE_SPI_CRC != 0U)
    if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
    {
      hspi->RxISR = SPI_RxISR_16BITCRC;
      return;
    }
#endif /* USE_SPI_CRC */
    SPI_CloseRx_ISR(hspi);
  }
}
 
static void SPI_TxISR_8BIT(struct __SPI_HandleTypeDef *hspi)
{
  *(__IO uint8_t *)&hspi->Instance->DR = *((const uint8_t *)hspi->pTxBuffPtr);
  hspi->pTxBuffPtr++;
  hspi->TxXferCount--;
 
  if (hspi->TxXferCount == 0U)
  {
#if (USE_SPI_CRC != 0U)
    if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
    {
      /* Enable CRC Transmission */
      SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
    }
#endif /* USE_SPI_CRC */
    SPI_CloseTx_ISR(hspi);
  }
}
 
static void SPI_TxISR_16BIT(struct __SPI_HandleTypeDef *hspi)
{
  /* Transmit data in 16 Bit mode */
  hspi->Instance->DR = *((const uint16_t *)hspi->pTxBuffPtr);
  hspi->pTxBuffPtr += sizeof(uint16_t);
  hspi->TxXferCount--;
 
  if (hspi->TxXferCount == 0U)
  {
#if (USE_SPI_CRC != 0U)
    if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
    {
      /* Enable CRC Transmission */
      SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
    }
#endif /* USE_SPI_CRC */
    SPI_CloseTx_ISR(hspi);
  }
}
 
static HAL_StatusTypeDef SPI_WaitFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, FlagStatus State,
                                                       uint32_t Timeout, uint32_t Tickstart)
{
  __IO uint32_t count;
  uint32_t tmp_timeout;
  uint32_t tmp_tickstart;
 
  /* Adjust Timeout value  in case of end of transfer */
  tmp_timeout   = Timeout - (HAL_GetTick() - Tickstart);
  tmp_tickstart = HAL_GetTick();
 
  /* Calculate Timeout based on a software loop to avoid blocking issue if Systick is disabled */
  count = tmp_timeout * ((SystemCoreClock * 32U) >> 20U);
 
  while ((__HAL_SPI_GET_FLAG(hspi, Flag) ? SET : RESET) != State)
  {
    if (Timeout != HAL_MAX_DELAY)
    {
      if (((HAL_GetTick() - tmp_tickstart) >= tmp_timeout) || (tmp_timeout == 0U))
      {
        /* Disable the SPI and reset the CRC: the CRC value should be cleared
           on both master and slave sides in order to resynchronize the master
           and slave for their respective CRC calculation */
 
        /* Disable TXE, RXNE and ERR interrupts for the interrupt process */
        __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_RXNE | SPI_IT_ERR));
 
        if ((hspi->Init.Mode == SPI_MODE_MASTER) && ((hspi->Init.Direction == SPI_DIRECTION_1LINE)
                                                     || (hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY)))
        {
          /* Disable SPI peripheral */
          __HAL_SPI_DISABLE(hspi);
        }
 
        /* Reset CRC Calculation */
        if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
        {
          SPI_RESET_CRC(hspi);
        }
 
        hspi->State = HAL_SPI_STATE_READY;
 
        /* Process Unlocked */
        __HAL_UNLOCK(hspi);
 
        return HAL_TIMEOUT;
      }
      /* If Systick is disabled or not incremented, deactivate timeout to go in disable loop procedure */
      if (count == 0U)
      {
        tmp_timeout = 0U;
      }
      count--;
    }
  }
 
  return HAL_OK;
}
 
static HAL_StatusTypeDef SPI_EndRxTransaction(SPI_HandleTypeDef *hspi,  uint32_t Timeout, uint32_t Tickstart)
{
  if ((hspi->Init.Mode == SPI_MODE_MASTER) && ((hspi->Init.Direction == SPI_DIRECTION_1LINE)
                                               || (hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY)))
  {
    /* Disable SPI peripheral */
    __HAL_SPI_DISABLE(hspi);
  }
 
  /* Erratasheet: BSY bit may stay high at the end of a data transfer in Slave mode */
  if (hspi->Init.Mode == SPI_MODE_MASTER)
  {
    if (hspi->Init.Direction != SPI_DIRECTION_2LINES_RXONLY)
    {
      /* Control the BSY flag */
      if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, Timeout, Tickstart) != HAL_OK)
      {
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
        return HAL_TIMEOUT;
      }
    }
    else
    {
      /* Wait the RXNE reset */
      if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout, Tickstart) != HAL_OK)
      {
        SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
        return HAL_TIMEOUT;
      }
    }
  }
  else
  {
    /* Wait the RXNE reset */
    if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, Timeout, Tickstart) != HAL_OK)
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
      return HAL_TIMEOUT;
    }
  }
  return HAL_OK;
}
 
static HAL_StatusTypeDef SPI_EndRxTxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart)
{
  /* Wait until TXE flag */
  if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_TXE, SET, Timeout, Tickstart) != HAL_OK)
  {
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
    return HAL_TIMEOUT;
  }
 
  /* Timeout in µs */
  __IO uint32_t count = SPI_BSY_FLAG_WORKAROUND_TIMEOUT * (SystemCoreClock / 24U / 1000000U);
  /* Erratasheet: BSY bit may stay high at the end of a data transfer in Slave mode */
  if (hspi->Init.Mode == SPI_MODE_MASTER)
  {
    /* Control the BSY flag */
    if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, Timeout, Tickstart) != HAL_OK)
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
      return HAL_TIMEOUT;
    }
  }
  else
  {
    /* Wait BSY flag during 1 Byte time transfer in case of Full-Duplex and Tx transfer
    * If Timeout is reached, the transfer is considered as finish.
    * User have to calculate the timeout value to fit with the time of 1 byte transfer.
    * This time is directly link with the SPI clock from Master device.
    */
    do
    {
      if (count == 0U)
      {
        break;
      }
      count--;
    } while (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_BSY) != RESET);
  }
 
  return HAL_OK;
}
 
static void SPI_CloseRxTx_ISR(SPI_HandleTypeDef *hspi)
{
  uint32_t tickstart;
  __IO uint32_t count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U);
 
  /* Init tickstart for timeout management */
  tickstart = HAL_GetTick();
 
  /* Disable ERR interrupt */
  __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR);
 
  /* Wait until TXE flag is set */
  do
  {
    if (count == 0U)
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
      break;
    }
    count--;
  } while ((hspi->Instance->SR & SPI_FLAG_TXE) == RESET);
 
  /* Check the end of the transaction */
  if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK)
  {
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
  }
 
  /* Clear overrun flag in 2 Lines communication mode because received is not read */
  if (hspi->Init.Direction == SPI_DIRECTION_2LINES)
  {
    __HAL_SPI_CLEAR_OVRFLAG(hspi);
  }
 
#if (USE_SPI_CRC != 0U)
  /* Check if CRC error occurred */
  if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
  {
    hspi->State = HAL_SPI_STATE_READY;
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
    __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
    /* Call user error callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
    hspi->ErrorCallback(hspi);
#else
    HAL_SPI_ErrorCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
  }
  else
  {
#endif /* USE_SPI_CRC */
    if (hspi->ErrorCode == HAL_SPI_ERROR_NONE)
    {
      if (hspi->State == HAL_SPI_STATE_BUSY_RX)
      {
        hspi->State = HAL_SPI_STATE_READY;
        /* Call user Rx complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
        hspi->RxCpltCallback(hspi);
#else
        HAL_SPI_RxCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
      }
      else
      {
        hspi->State = HAL_SPI_STATE_READY;
        /* Call user TxRx complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
        hspi->TxRxCpltCallback(hspi);
#else
        HAL_SPI_TxRxCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
      }
    }
    else
    {
      hspi->State = HAL_SPI_STATE_READY;
      /* Call user error callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
      hspi->ErrorCallback(hspi);
#else
      HAL_SPI_ErrorCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
    }
#if (USE_SPI_CRC != 0U)
  }
#endif /* USE_SPI_CRC */
}
 
static void SPI_CloseRx_ISR(SPI_HandleTypeDef *hspi)
{
  /* Disable RXNE and ERR interrupt */
  __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR));
 
  /* Check the end of the transaction */
  if (SPI_EndRxTransaction(hspi, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK)
  {
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
  }
 
  /* Clear overrun flag in 2 Lines communication mode because received is not read */
  if (hspi->Init.Direction == SPI_DIRECTION_2LINES)
  {
    __HAL_SPI_CLEAR_OVRFLAG(hspi);
  }
  hspi->State = HAL_SPI_STATE_READY;
 
#if (USE_SPI_CRC != 0U)
  /* Check if CRC error occurred */
  if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
  {
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
    __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
    /* Call user error callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
    hspi->ErrorCallback(hspi);
#else
    HAL_SPI_ErrorCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
  }
  else
  {
#endif /* USE_SPI_CRC */
    if (hspi->ErrorCode == HAL_SPI_ERROR_NONE)
    {
      /* Call user Rx complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
      hspi->RxCpltCallback(hspi);
#else
      HAL_SPI_RxCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
    }
    else
    {
      /* Call user error callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
      hspi->ErrorCallback(hspi);
#else
      HAL_SPI_ErrorCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
    }
#if (USE_SPI_CRC != 0U)
  }
#endif /* USE_SPI_CRC */
}
 
static void SPI_CloseTx_ISR(SPI_HandleTypeDef *hspi)
{
  uint32_t tickstart;
  __IO uint32_t count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U);
 
  /* Init tickstart for timeout management*/
  tickstart = HAL_GetTick();
 
  /* Wait until TXE flag is set */
  do
  {
    if (count == 0U)
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
      break;
    }
    count--;
  } while ((hspi->Instance->SR & SPI_FLAG_TXE) == RESET);
 
  /* Disable TXE and ERR interrupt */
  __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_ERR));
 
  /* Check the end of the transaction */
  if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK)
  {
    SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
  }
 
  /* Clear overrun flag in 2 Lines communication mode because received is not read */
  if (hspi->Init.Direction == SPI_DIRECTION_2LINES)
  {
    __HAL_SPI_CLEAR_OVRFLAG(hspi);
  }
 
  hspi->State = HAL_SPI_STATE_READY;
  if (hspi->ErrorCode != HAL_SPI_ERROR_NONE)
  {
    /* Call user error callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
    hspi->ErrorCallback(hspi);
#else
    HAL_SPI_ErrorCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
  }
  else
  {
    /* Call user Rx complete callback */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
    hspi->TxCpltCallback(hspi);
#else
    HAL_SPI_TxCpltCallback(hspi);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
  }
}
 
static void SPI_AbortRx_ISR(SPI_HandleTypeDef *hspi)
{
  __IO uint32_t tmpreg = 0U;
  __IO uint32_t count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U);
 
  /* Wait until TXE flag is set */
  do
  {
    if (count == 0U)
    {
      SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT);
      break;
    }
    count--;
  } while ((hspi->Instance->SR & SPI_FLAG_TXE) == RESET);
 
  /* Disable SPI Peripheral */
  __HAL_SPI_DISABLE(hspi);
 
  /* Disable TXEIE, RXNEIE and ERRIE(mode fault event, overrun error, TI frame error) interrupts */
  CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_TXEIE | SPI_CR2_RXNEIE | SPI_CR2_ERRIE));
 
  /* Flush Data Register by a blank read */
  tmpreg = READ_REG(hspi->Instance->DR);
  /* To avoid GCC warning */
  UNUSED(tmpreg);
 
  hspi->State = HAL_SPI_STATE_ABORT;
}
 
static void SPI_AbortTx_ISR(SPI_HandleTypeDef *hspi)
{
  /* Disable TXEIE interrupt */
  CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_TXEIE));
 
  /* Disable SPI Peripheral */
  __HAL_SPI_DISABLE(hspi);
 
  hspi->State = HAL_SPI_STATE_ABORT;
}
 
#endif /* HAL_SPI_MODULE_ENABLED */