HAL_StatusTypeDef FLASH_WaitForLastOperation()

in boards/STM32L475_Discovery/STM32L4xx_HAL_Driver/stm32l4xx_hal_flash.c [639:685]

• 34 lines of code
• 26 McCabe index (conditional complexity)

HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout)
{
  /* Wait for the FLASH operation to complete by polling on BUSY flag to be reset.
     Even if the FLASH operation fails, the BUSY flag will be reset and an error
     flag will be set */
    
  uint32_t timeout = HAL_GetTick() + Timeout;
     
  while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY)) 
  { 
    if(Timeout != HAL_MAX_DELAY)
    {
      if(HAL_GetTick() >= timeout)
      {
        return HAL_TIMEOUT;
      }
    } 
  }
  
  if((__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPERR))  || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PROGERR)) || 
     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGAERR))  || 
     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_SIZERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGSERR))  ||
     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_MISERR)) || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_FASTERR)) || 
     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_RDERR))  || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_OPTVERR)) ||
#if defined (STM32L431xx) || defined (STM32L432xx) || defined (STM32L433xx) || defined (STM32L442xx) || defined (STM32L443xx) || \
    defined (STM32L451xx) || defined (STM32L452xx) || defined (STM32L462xx) || defined (STM32L496xx) || defined (STM32L4A6xx)
     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_ECCD))   || (__HAL_FLASH_GET_FLAG(FLASH_FLAG_PEMPTY)))
#else
     (__HAL_FLASH_GET_FLAG(FLASH_FLAG_ECCD)))
#endif
  {
    /*Save the error code*/
    FLASH_SetErrorCode();
    
    return HAL_ERROR;
  }

  /* Check FLASH End of Operation flag  */
  if (__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP))
  {
    /* Clear FLASH End of Operation pending bit */
    __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP);
  }
  
  /* If there is an error flag set */
  return HAL_OK;  
}