FLASH Private Functions

Collaboration diagram for FLASH Private Functions:

Functions
HAL_StatusTypeDef	FLASH_WaitForLastOperation (uint32_t Timeout, uint32_t Bank)
	Wait for a FLASH operation to complete. More...
HAL_StatusTypeDef	FLASH_OB_WaitForLastOperation (uint32_t Timeout)
	Wait for a FLASH Option Bytes change operation to complete. More...
HAL_StatusTypeDef	FLASH_CRC_WaitForLastOperation (uint32_t Timeout, uint32_t Bank)
	Wait for a FLASH CRC computation to complete. More...

Detailed Description

Function Documentation

FLASH_CRC_WaitForLastOperation()

HAL_StatusTypeDef FLASH_CRC_WaitForLastOperation	(	uint32_t	Timeout,
		uint32_t	Bank
	)

Wait for a FLASH CRC computation to complete.

Parameters

Timeout	maximum flash operation timeout
Bank	flash FLASH_BANK_1 or FLASH_BANK_2

Return values

HAL_StatusTypeDef

HAL Status

Definition at line 1111 of file stm32h7xx_hal_flash.c.

{
  uint32_t bsyflag;
  (void)Timeout;
  //uint32_t tickstart = HAL_GetTick();
 
  assert_param(IS_FLASH_BANK_EXCLUSIVE(Bank));
 
  /* Select bsyflag depending on Bank */
  if(Bank == FLASH_BANK_1)
  {
    bsyflag = FLASH_FLAG_CRC_BUSY_BANK1;
  }
  else
  {
    bsyflag = FLASH_FLAG_CRC_BUSY_BANK2;
  }
 
  /* Wait for the FLASH CRC computation to complete by polling on CRC_BUSY flag to be reset */
  while(__HAL_FLASH_GET_FLAG(bsyflag))
  {
    // TODO: rusefi own timeout
    // if(Timeout != HAL_MAX_DELAY)
    // {
    //   if(((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
    //   {
    //     return HAL_TIMEOUT;
    //   }
    // }
  }
 
  /* Check FLASH CRC read error flag  */
  if(Bank == FLASH_BANK_1)
  {
    if (__HAL_FLASH_GET_FLAG_BANK1(FLASH_FLAG_CRCRDERR_BANK1))
    {
      /* Save the error code */
      pFlash.ErrorCode |= HAL_FLASH_ERROR_CRCRD_BANK1;
 
      /* Clear FLASH CRC read error pending bit */
      __HAL_FLASH_CLEAR_FLAG_BANK1(FLASH_FLAG_CRCRDERR_BANK1);
 
      return HAL_ERROR;
    }
  }
#if defined (DUAL_BANK)
  else
  {
    if (__HAL_FLASH_GET_FLAG_BANK2(FLASH_FLAG_CRCRDERR_BANK2))
    {
      /* Save the error code */
      pFlash.ErrorCode |= HAL_FLASH_ERROR_CRCRD_BANK2;
 
      /* Clear FLASH CRC read error pending bit */
      __HAL_FLASH_CLEAR_FLAG_BANK2(FLASH_FLAG_CRCRDERR_BANK2);
 
      return HAL_ERROR;
    }
  }
#endif /* DUAL_BANK */
 
  /* If there is no error flag set */
  return HAL_OK;
}

Referenced by HAL_FLASHEx_ComputeCRC().

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FLASH_OB_WaitForLastOperation()

HAL_StatusTypeDef FLASH_OB_WaitForLastOperation

(

uint32_t

Timeout

)

Wait for a FLASH Option Bytes change operation to complete.

Parameters

Timeout

maximum flash operation timeout

Return values

HAL_StatusTypeDef

HAL Status

Definition at line 1070 of file stm32h7xx_hal_flash.c.

{
  (void)Timeout;
  /* Get timeout */
  //uint32_t tickstart = HAL_GetTick();
 
  /* Wait for the FLASH Option Bytes change operation to complete by polling on OPT_BUSY flag to be reset */
  while(READ_BIT(FLASH->OPTSR_CUR, FLASH_OPTSR_OPT_BUSY) != 0U)
  {
    // TODO: rusefi own timeout
    /*if(Timeout != HAL_MAX_DELAY)
    {
      if(((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
      {
        return HAL_TIMEOUT;
      }
    }*/
  }
 
  /* Check option byte change error */
  if(READ_BIT(FLASH->OPTSR_CUR, FLASH_OPTSR_OPTCHANGEERR) != 0U)
  {
    /* Save the error code */
    pFlash.ErrorCode |= HAL_FLASH_ERROR_OB_CHANGE;
 
    /* Clear the OB error flag */
    FLASH->OPTCCR |= FLASH_OPTCCR_CLR_OPTCHANGEERR;
 
    return HAL_ERROR;
  }
 
  /* If there is no error flag set */
  return HAL_OK;
}

Referenced by HAL_FLASHEx_ComputeCRC().

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FLASH_WaitForLastOperation()

HAL_StatusTypeDef FLASH_WaitForLastOperation	(	uint32_t	Timeout,
		uint32_t	Bank
	)

Wait for a FLASH operation to complete.

Parameters

Timeout	maximum flash operation timeout
Bank	flash FLASH_BANK_1 or FLASH_BANK_2

Return values

HAL_StatusTypeDef

HAL Status

Definition at line 993 of file stm32h7xx_hal_flash.c.

{
  (void)Timeout;
 
  /* Wait for the FLASH operation to complete by polling on QW flag to be reset.
     Even if the FLASH operation fails, the QW flag will be reset and an error
     flag will be set */
 
  uint32_t bsyflag = FLASH_FLAG_QW_BANK1;
  uint32_t errorflag = FLASH->SR1 & FLASH_FLAG_ALL_ERRORS_BANK1;
  //uint32_t tickstart = HAL_GetTick();
 
  assert_param(IS_FLASH_BANK_EXCLUSIVE(Bank));
 
#if defined (DUAL_BANK)
 
  if (Bank == FLASH_BANK_2)
  {
    /* Get Error Flags */
    errorflag = (FLASH->SR2 & FLASH_FLAG_ALL_ERRORS_BANK2) | 0x80000000U;
    /* Select bsyflag depending on Bank */
    bsyflag = FLASH_FLAG_QW_BANK2;
  }
#endif /* DUAL_BANK */
 
  while(__HAL_FLASH_GET_FLAG(bsyflag))
  {
    if(Timeout != HAL_MAX_DELAY)
    {
      // todo: implement rusEfi own timeout
      //   if(((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
      //   {
      //     return HAL_TIMEOUT;
      //   }
    }
  }
 
  /* In case of error reported in Flash SR1 or SR2 register */
  if((errorflag & 0x7FFFFFFFU) != 0U)
  {
    /*Save the error code*/
    pFlash.ErrorCode |= errorflag;
 
    /* Clear error programming flags */
    __HAL_FLASH_CLEAR_FLAG(errorflag);
 
    return HAL_ERROR;
  }
 
  /* Check FLASH End of Operation flag  */
  if(Bank == FLASH_BANK_1)
  {
    if (__HAL_FLASH_GET_FLAG_BANK1(FLASH_FLAG_EOP_BANK1))
    {
      /* Clear FLASH End of Operation pending bit */
      __HAL_FLASH_CLEAR_FLAG_BANK1(FLASH_FLAG_EOP_BANK1);
    }
  }
#if defined (DUAL_BANK)
  else
  {
    if (__HAL_FLASH_GET_FLAG_BANK2(FLASH_FLAG_EOP_BANK2))
    {
      /* Clear FLASH End of Operation pending bit */
      __HAL_FLASH_CLEAR_FLAG_BANK2(FLASH_FLAG_EOP_BANK2);
    }
  }
#endif /* DUAL_BANK */
 
  return HAL_OK;
}

Referenced by HAL_FLASH_Program(), and HAL_FLASH_Program_IT().

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