I/O operation functions
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Collaboration diagram for I/O operation functions:

Functions
HAL_StatusTypeDef	HAL_DMA_Start (DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength)
	Starts the DMA Transfer. More...

HAL_StatusTypeDef	HAL_DMA_Start_IT (DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength)
	Start the DMA Transfer with interrupt enabled. More...

HAL_StatusTypeDef	HAL_DMA_Abort (DMA_HandleTypeDef *hdma)
	Aborts the DMA Transfer. More...

HAL_StatusTypeDef	HAL_DMA_Abort_IT (DMA_HandleTypeDef *hdma)
	Aborts the DMA Transfer in Interrupt mode. More...

HAL_StatusTypeDef	HAL_DMA_PollForTransfer (DMA_HandleTypeDef *hdma, HAL_DMA_LevelCompleteTypeDef CompleteLevel, uint32_t Timeout)
	Polling for transfer complete. More...

void	HAL_DMA_IRQHandler (DMA_HandleTypeDef *hdma)
	Handles DMA interrupt request. More...

HAL_StatusTypeDef	HAL_DMA_CleanCallbacks (DMA_HandleTypeDef *hdma)

HAL_StatusTypeDef	HAL_DMA_RegisterCallback (DMA_HandleTypeDef hdma, HAL_DMA_CallbackIDTypeDef CallbackID, void(pCallback)(DMA_HandleTypeDef *_hdma))
	Register callbacks. More...

HAL_StatusTypeDef	HAL_DMA_UnRegisterCallback (DMA_HandleTypeDef *hdma, HAL_DMA_CallbackIDTypeDef CallbackID)
	UnRegister callbacks. More...

Detailed Description

I/O operation functions

 ===============================================================================
                      #####  IO operation functions  #####
 ===============================================================================
    [..]  This section provides functions allowing to:
      (+) Configure the source, destination address and data length and Start DMA transfer
      (+) Configure the source, destination address and data length and 
          Start DMA transfer with interrupt
      (+) Abort DMA transfer
      (+) Poll for transfer complete
      (+) Handle DMA interrupt request

Function Documentation

◆ HAL_DMA_Abort()

HAL_StatusTypeDef HAL_DMA_Abort ( DMA_HandleTypeDef * hdma )

Aborts the DMA Transfer.

Parameters

hdma	pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA Stream.

Note: After disabling a DMA Stream, a check for wait until the DMA Stream is effectively disabled is added. If a Stream is disabled while a data transfer is ongoing, the current data will be transferred and the Stream will be effectively disabled only after the transfer of this single data is finished.

Return values

HAL status

Definition at line 513 of file stm32f4xx_hal_dma.c.

◆ HAL_DMA_Abort_IT()

HAL_StatusTypeDef HAL_DMA_Abort_IT ( DMA_HandleTypeDef * hdma )

Aborts the DMA Transfer in Interrupt mode.

Parameters

hdma	pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA Stream.

Return values

HAL status

Definition at line 580 of file stm32f4xx_hal_dma.c.

◆ HAL_DMA_IRQHandler()

void HAL_DMA_IRQHandler ( DMA_HandleTypeDef * hdma )

Handles DMA interrupt request.

Parameters

hdma	pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA Stream.

Return values

None

Definition at line 746 of file stm32f4xx_hal_dma.c.

◆ HAL_DMA_PollForTransfer()

HAL_StatusTypeDef HAL_DMA_PollForTransfer	(	DMA_HandleTypeDef *	hdma,
		HAL_DMA_LevelCompleteTypeDef	CompleteLevel,
		uint32_t	Timeout
	)

Polling for transfer complete.

Parameters

hdma	pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA Stream.
CompleteLevel	Specifies the DMA level complete.

Note: The polling mode is kept in this version for legacy. it is recommended to use the IT model instead. This model could be used for debug purpose.; The HAL_DMA_PollForTransfer API cannot be used in circular and double buffering mode (automatic circular mode).

Parameters

Timeout Timeout duration.

Return values

HAL status

Definition at line 610 of file stm32f4xx_hal_dma.c.

◆ HAL_DMA_RegisterCallback()

HAL_StatusTypeDef HAL_DMA_RegisterCallback	(	DMA_HandleTypeDef *	hdma,
		HAL_DMA_CallbackIDTypeDef	CallbackID,
		void()(DMA_HandleTypeDef _hdma)	pCallback
	)

Register callbacks.

Parameters

hdma	pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA Stream.
CallbackID	User Callback identifier a DMA_HandleTypeDef structure as parameter.
pCallback	pointer to private callback function which has pointer to a DMA_HandleTypeDef structure as parameter.

Return values

HAL status

Definition at line 967 of file stm32f4xx_hal_dma.c.

◆ HAL_DMA_Start()

HAL_StatusTypeDef HAL_DMA_Start	(	DMA_HandleTypeDef *	hdma,
		uint32_t	SrcAddress,
		uint32_t	DstAddress,
		uint32_t	DataLength
	)

Starts the DMA Transfer.

Parameters

hdma	pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA Stream.
SrcAddress	The source memory Buffer address
DstAddress	The destination memory Buffer address
DataLength	The length of data to be transferred from source to destination

Return values

HAL status

Definition at line 407 of file stm32f4xx_hal_dma.c.

◆ HAL_DMA_Start_IT()

HAL_StatusTypeDef HAL_DMA_Start_IT	(	DMA_HandleTypeDef *	hdma,
		uint32_t	SrcAddress,
		uint32_t	DstAddress,
		uint32_t	DataLength
	)

Start the DMA Transfer with interrupt enabled.

Parameters

hdma	pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA Stream.
SrcAddress	The source memory Buffer address
DstAddress	The destination memory Buffer address
DataLength	The length of data to be transferred from source to destination

Return values

HAL status

Definition at line 451 of file stm32f4xx_hal_dma.c.

◆ HAL_DMA_UnRegisterCallback()

HAL_StatusTypeDef HAL_DMA_UnRegisterCallback	(	DMA_HandleTypeDef *	hdma,
		HAL_DMA_CallbackIDTypeDef	CallbackID
	)

UnRegister callbacks.

Parameters

hdma	pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA Stream.
CallbackID	User Callback identifier a HAL_DMA_CallbackIDTypeDef ENUM as parameter.

Return values

HAL status

Definition at line 1029 of file stm32f4xx_hal_dma.c.

Functions

Detailed Description

Function Documentation

◆ HAL_DMA_Abort()

◆ HAL_DMA_Abort_IT()

◆ HAL_DMA_IRQHandler()

◆ HAL_DMA_PollForTransfer()

◆ HAL_DMA_RegisterCallback()

◆ HAL_DMA_Start()

◆ HAL_DMA_Start_IT()

◆ HAL_DMA_UnRegisterCallback()