stm32f4xx_hal_dma_ex.c File Reference

DMA Extension HAL module driver This file provides firmware functions to manage the following functionalities of the DMA Extension peripheral: + Extended features functions. More...

#include "stm32f4xx_hal.h"

Go to the source code of this file.

Functions
static void	DMA_MultiBufferSetConfig (DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength)
	Set the DMA Transfer parameter.
HAL_StatusTypeDef	HAL_DMAEx_MultiBufferStart (DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t SecondMemAddress, uint32_t DataLength)
	Starts the multi_buffer DMA Transfer.
HAL_StatusTypeDef	HAL_DMAEx_MultiBufferStart_IT (DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t SecondMemAddress, uint32_t DataLength)
	Starts the multi_buffer DMA Transfer with interrupt enabled.
HAL_StatusTypeDef	HAL_DMAEx_ChangeMemory (DMA_HandleTypeDef *hdma, uint32_t Address, HAL_DMA_MemoryTypeDef memory)
	Change the memory0 or memory1 address on the fly.

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Detailed Description

DMA Extension HAL module driver This file provides firmware functions to manage the following functionalities of the DMA Extension peripheral: + Extended features functions.

Author:

MCD Application Team

  ==============================================================================
                        ##### How to use this driver #####
  ==============================================================================
  [..]
  The DMA Extension HAL driver can be used as follows:
   (#) Start a multi buffer transfer using the HAL_DMA_MultiBufferStart() function
       for polling mode or HAL_DMA_MultiBufferStart_IT() for interrupt mode.
                   
     -@-  In Memory-to-Memory transfer mode, Multi (Double) Buffer mode is not allowed.
     -@-  When Multi (Double) Buffer mode is enabled the, transfer is circular by default.
     -@-  In Multi (Double) buffer mode, it is possible to update the base address for 
          the AHB memory port on the fly (DMA_SxM0AR or DMA_SxM1AR) when the stream is enabled. 
  
  

Attention:

© Copyright (c) 2017 STMicroelectronics. All rights reserved.

This software component is licensed by ST under BSD 3-Clause license, the "License"; You may not use this file except in compliance with the License. You may obtain a copy of the License at: opensource.org/licenses/BSD-3-Clause

Definition in file stm32f4xx_hal_dma_ex.c.