Input and Output operation functions

Input and Output operation functions. More...

Functions
HAL_StatusTypeDef	HAL_DMA_Start (DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t Counts)
	Start the DMA Transfer. More...
HAL_StatusTypeDef	HAL_DMA_Start_IT (DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t Counts)
	Start the DMA Transfer with interrupt enabled. More...
HAL_StatusTypeDef	HAL_DMA_Abort (DMA_HandleTypeDef *hdma)
	Abort 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)
	Handle DMA interrupt request. More...
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...
void	HAL_DMA_Select_Source (DMA_Channel_TypeDef *dma_chl, uint8_t request)

Detailed Description

Input and Output operation functions.

DMA_Exported_Functions_Group1

 ===============================================================================
                      #####  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

)

Abort the DMA Transfer.

Parameters

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

Return values

HAL

status

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 Channel.

Return values

HAL

status

HAL_DMA_IRQHandler()

void HAL_DMA_IRQHandler

(

DMA_HandleTypeDef *

hdma

)

Handle DMA interrupt request.

Parameters

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

Return values

None

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 Channel.
CompleteLevel	Specifies the DMA level complete.
Timeout	Timeout duration.

Return values

HAL

status

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 Channel.
CallbackID	User Callback identifer a HAL_DMA_CallbackIDTypeDef ENUM as parameter.
pCallback	pointer to private callbacsk function which has pointer to a DMA_HandleTypeDef structure as parameter.

Return values

HAL

status

HAL_DMA_Start()

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

Start the DMA Transfer.

Parameters

hdma	pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA Channel.
SrcAddress	The source memory Buffer address
DstAddress	The destination memory Buffer address
Counts	The counts of data transfer action

Return values

HAL

status

HAL_DMA_Start_IT()

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

Start the DMA Transfer with interrupt enabled.

Parameters

hdma	pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA Channel.
SrcAddress	The source memory Buffer address
DstAddress	The destination memory Buffer address
Counts	The counts of data transfer action

Return values

HAL

status

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 Channel.
CallbackID	User Callback identifer a HAL_DMA_CallbackIDTypeDef ENUM as parameter.

Return values

HAL

status