C++ (Cpp) HAL_DMAEx_ChangeMemory 예제들

예제 #1

파일: stm32f4xx_hal_dcmi.c 프로젝트: kqzca/prj

/**
  * @brief  DMA conversion complete callback.
  * @param  hdma: pointer to a DMA_HandleTypeDef structure that contains
  *               the configuration information for the specified DMA module.
  * @retval None
  */
static void DCMI_DMAXferCplt(DMA_HandleTypeDef *hdma)
{
  uint32_t tmp = 0U;
 
  DCMI_HandleTypeDef* hdcmi = ( DCMI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
  
  if(hdcmi->XferCount != 0)
  {
    /* Update memory 0 address location */
    tmp = ((hdcmi->DMA_Handle->Instance->CR) & DMA_SxCR_CT);
    if(((hdcmi->XferCount % 2U) == 0U) && (tmp != 0U))
    {
      tmp = hdcmi->DMA_Handle->Instance->M0AR;
      HAL_DMAEx_ChangeMemory(hdcmi->DMA_Handle, (tmp + (8U*hdcmi->XferSize)), MEMORY0);
      hdcmi->XferCount--;
    }
    /* Update memory 1 address location */
    else if((hdcmi->DMA_Handle->Instance->CR & DMA_SxCR_CT) == 0U)
    {
      tmp = hdcmi->DMA_Handle->Instance->M1AR;
      HAL_DMAEx_ChangeMemory(hdcmi->DMA_Handle, (tmp + (8U*hdcmi->XferSize)), MEMORY1);
      hdcmi->XferCount--;
    }
  }
  /* Update memory 0 address location */
  else if((hdcmi->DMA_Handle->Instance->CR & DMA_SxCR_CT) != 0U)
  {
    hdcmi->DMA_Handle->Instance->M0AR = hdcmi->pBuffPtr;
  }
  /* Update memory 1 address location */
  else if((hdcmi->DMA_Handle->Instance->CR & DMA_SxCR_CT) == 0U)
  {
    tmp = hdcmi->pBuffPtr;
    hdcmi->DMA_Handle->Instance->M1AR = (tmp + (4U*hdcmi->XferSize));
    hdcmi->XferCount = hdcmi->XferTransferNumber;
  }
  
  /* Check if the frame is transferred */
  if(hdcmi->XferCount == hdcmi->XferTransferNumber)
  {
    /* Enable the Frame interrupt */
    __HAL_DCMI_ENABLE_IT(hdcmi, DCMI_IT_FRAME);
    
    /* When snapshot mode, set dcmi state to ready */
    if((hdcmi->Instance->CR & DCMI_CR_CM) == DCMI_MODE_SNAPSHOT)
    {  
      hdcmi->State= HAL_DCMI_STATE_READY;
    }
  }
}

예제 #2

파일: stm32f4xx_hal_dcmi.c 프로젝트: 451506709/automated_machine

  /**
  * @brief  DMA conversion complete callback. 
  * @param  hdma: pointer to a DMA_HandleTypeDef structure that contains
  *                the configuration information for the specified DMA module.
  * @retval None
  */
static void DCMI_DMAConvCplt(DMA_HandleTypeDef *hdma)
{
  uint32_t tmp = 0;
 
  DCMI_HandleTypeDef* hdcmi = ( DCMI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
  hdcmi->State= HAL_DCMI_STATE_READY;

  if(hdcmi->XferCount != 0)
  {
    /* Update memory 0 address location */
    tmp = ((hdcmi->DMA_Handle->Instance->CR) & DMA_SxCR_CT);
    if(((hdcmi->XferCount % 2) == 0) && (tmp != 0))
    {
      tmp = hdcmi->DMA_Handle->Instance->M0AR;
      HAL_DMAEx_ChangeMemory(hdcmi->DMA_Handle, (tmp + (8*hdcmi->XferSize)), MEMORY0);
      hdcmi->XferCount--;
    }
    /* Update memory 1 address location */
    else if((hdcmi->DMA_Handle->Instance->CR & DMA_SxCR_CT) == 0)
    {
      tmp = hdcmi->DMA_Handle->Instance->M1AR;
      HAL_DMAEx_ChangeMemory(hdcmi->DMA_Handle, (tmp + (8*hdcmi->XferSize)), MEMORY1);
      hdcmi->XferCount--;
    }
  }
  /* Update memory 0 address location */
  else if((hdcmi->DMA_Handle->Instance->CR & DMA_SxCR_CT) != 0)
  {
    hdcmi->DMA_Handle->Instance->M0AR = hdcmi->pBuffPtr;
  }
  /* Update memory 1 address location */
  else if((hdcmi->DMA_Handle->Instance->CR & DMA_SxCR_CT) == 0)
  {
    tmp = hdcmi->pBuffPtr;
    hdcmi->DMA_Handle->Instance->M1AR = (tmp + (4*hdcmi->XferSize));
    hdcmi->XferCount = hdcmi->XferTransferNumber;
  }

  if(__HAL_DCMI_GET_FLAG(hdcmi, DCMI_FLAG_FRAMERI) != RESET)
  {
    /* Process Unlocked */
    __HAL_UNLOCK(hdcmi);

    /* FRAME Callback */
    HAL_DCMI_FrameEventCallback(hdcmi);
  }
}