UART Transmit/Receive functions. More...

Functions
HAL_StatusTypeDef	HAL_UART_Transmit (UART_HandleTypeDef huart, const uint8_t pData, uint16_t Size, uint32_t Timeout)
	Send an amount of data in blocking mode.
HAL_StatusTypeDef	HAL_UART_Receive (UART_HandleTypeDef huart, uint8_t pData, uint16_t Size, uint32_t Timeout)
	Receive an amount of data in blocking mode.
HAL_StatusTypeDef	HAL_UART_Transmit_IT (UART_HandleTypeDef huart, const uint8_t pData, uint16_t Size)
	Send an amount of data in interrupt mode.
HAL_StatusTypeDef	HAL_UART_Receive_IT (UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
	Receive an amount of data in interrupt mode.
HAL_StatusTypeDef	HAL_UART_Transmit_DMA (UART_HandleTypeDef huart, const uint8_t pData, uint16_t Size)
	Send an amount of data in DMA mode.
HAL_StatusTypeDef	HAL_UART_Receive_DMA (UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
	Receive an amount of data in DMA mode.
HAL_StatusTypeDef	HAL_UART_DMAPause (UART_HandleTypeDef *huart)
	Pause the DMA Transfer.
HAL_StatusTypeDef	HAL_UART_DMAResume (UART_HandleTypeDef *huart)
	Resume the DMA Transfer.
HAL_StatusTypeDef	HAL_UART_DMAStop (UART_HandleTypeDef *huart)
	Stop the DMA Transfer.
HAL_StatusTypeDef	HAL_UART_Abort (UART_HandleTypeDef *huart)
	Abort ongoing transfers (blocking mode).
HAL_StatusTypeDef	HAL_UART_AbortTransmit (UART_HandleTypeDef *huart)
	Abort ongoing Transmit transfer (blocking mode).
HAL_StatusTypeDef	HAL_UART_AbortReceive (UART_HandleTypeDef *huart)
	Abort ongoing Receive transfer (blocking mode).
HAL_StatusTypeDef	HAL_UART_Abort_IT (UART_HandleTypeDef *huart)
	Abort ongoing transfers (Interrupt mode).
HAL_StatusTypeDef	HAL_UART_AbortTransmit_IT (UART_HandleTypeDef *huart)
	Abort ongoing Transmit transfer (Interrupt mode).
HAL_StatusTypeDef	HAL_UART_AbortReceive_IT (UART_HandleTypeDef *huart)
	Abort ongoing Receive transfer (Interrupt mode).
void	HAL_UART_IRQHandler (UART_HandleTypeDef *huart)
	Handle UART interrupt request.
__weak void	HAL_UART_TxCpltCallback (UART_HandleTypeDef *huart)
	Tx Transfer completed callback.
__weak void	HAL_UART_TxHalfCpltCallback (UART_HandleTypeDef *huart)
	Tx Half Transfer completed callback.
__weak void	HAL_UART_RxCpltCallback (UART_HandleTypeDef *huart)
	Rx Transfer completed callback.
__weak void	HAL_UART_RxHalfCpltCallback (UART_HandleTypeDef *huart)
	Rx Half Transfer completed callback.
__weak void	HAL_UART_ErrorCallback (UART_HandleTypeDef *huart)
	UART error callback.
__weak void	HAL_UART_AbortCpltCallback (UART_HandleTypeDef *huart)
	UART Abort Complete callback.
__weak void	HAL_UART_AbortTransmitCpltCallback (UART_HandleTypeDef *huart)
	UART Abort Complete callback.
__weak void	HAL_UART_AbortReceiveCpltCallback (UART_HandleTypeDef *huart)
	UART Abort Receive Complete callback.
__weak void	HAL_UARTEx_RxEventCallback (UART_HandleTypeDef *huart, uint16_t Size)
	Reception Event Callback (Rx event notification called after use of advanced reception service).

Detailed Description

UART Transmit/Receive functions.

 ===============================================================================
                      ##### IO operation functions #####
 ===============================================================================
    This subsection provides a set of functions allowing to manage the UART asynchronous
    and Half duplex data transfers.

    (#) There are two mode of transfer:
       (+) Blocking mode: The communication is performed in polling mode.
           The HAL status of all data processing is returned by the same function
           after finishing transfer.
       (+) Non-Blocking mode: The communication is performed using Interrupts
           or DMA, These API's return the HAL status.
           The end of the data processing will be indicated through the
           dedicated UART IRQ when using Interrupt mode or the DMA IRQ when
           using DMA mode.
           The HAL_UART_TxCpltCallback(), HAL_UART_RxCpltCallback() user callbacks
           will be executed respectively at the end of the transmit or Receive process
           The HAL_UART_ErrorCallback()user callback will be executed when a communication error is detected

    (#) Blocking mode API's are :
        (+) HAL_UART_Transmit()
        (+) HAL_UART_Receive()

    (#) Non-Blocking mode API's with Interrupt are :
        (+) HAL_UART_Transmit_IT()
        (+) HAL_UART_Receive_IT()
        (+) HAL_UART_IRQHandler()

    (#) Non-Blocking mode API's with DMA are :
        (+) HAL_UART_Transmit_DMA()
        (+) HAL_UART_Receive_DMA()
        (+) HAL_UART_DMAPause()
        (+) HAL_UART_DMAResume()
        (+) HAL_UART_DMAStop()

    (#) A set of Transfer Complete Callbacks are provided in Non_Blocking mode:
        (+) HAL_UART_TxHalfCpltCallback()
        (+) HAL_UART_TxCpltCallback()
        (+) HAL_UART_RxHalfCpltCallback()
        (+) HAL_UART_RxCpltCallback()
        (+) HAL_UART_ErrorCallback()

    (#) Non-Blocking mode transfers could be aborted using Abort API's :
        (+) HAL_UART_Abort()
        (+) HAL_UART_AbortTransmit()
        (+) HAL_UART_AbortReceive()
        (+) HAL_UART_Abort_IT()
        (+) HAL_UART_AbortTransmit_IT()
        (+) HAL_UART_AbortReceive_IT()

    (#) For Abort services based on interrupts (HAL_UART_Abortxxx_IT), a set of Abort Complete Callbacks are provided:
        (+) HAL_UART_AbortCpltCallback()
        (+) HAL_UART_AbortTransmitCpltCallback()
        (+) HAL_UART_AbortReceiveCpltCallback()

    (#) A Rx Event Reception Callback (Rx event notification) is available for Non_Blocking modes of enhanced
        reception services:
        (+) HAL_UARTEx_RxEventCallback()

    (#) In Non-Blocking mode transfers, possible errors are split into 2 categories.
        Errors are handled as follows :
       (+) Error is considered as Recoverable and non blocking : Transfer could go till end, but error severity is
           to be evaluated by user : this concerns Frame Error, Parity Error or Noise Error
           in Interrupt mode reception .
           Received character is then retrieved and stored in Rx buffer, Error code is set to allow user
           to identify error type, and HAL_UART_ErrorCallback() user callback is executed.
           Transfer is kept ongoing on UART side.
           If user wants to abort it, Abort services should be called by user.
       (+) Error is considered as Blocking : Transfer could not be completed properly and is aborted.
           This concerns Overrun Error In Interrupt mode reception and all errors in DMA mode.
           Error code is set to allow user to identify error type, and HAL_UART_ErrorCallback()
           user callback is executed.

    -@- In the Half duplex communication, it is forbidden to run the transmit
        and receive process in parallel, the UART state HAL_UART_STATE_BUSY_TX_RX can't be useful.

Function Documentation

HAL_StatusTypeDef HAL_UART_Abort ( UART_HandleTypeDef * huart )

Abort ongoing transfers (blocking mode).

Parameters:

huart UART handle.

Note:

This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. This procedure performs following operations :

Disable UART Interrupts (Tx and Rx)
Disable the DMA transfer in the peripheral register (if enabled)
Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
Set handle State to READY

This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.

Return values:

HAL status

Definition at line 1671 of file stm32h7xx_hal_uart.c.

HAL_StatusTypeDef HAL_UART_Abort_IT ( UART_HandleTypeDef * huart )

Abort ongoing transfers (Interrupt mode).

Parameters:

huart UART handle.

Note:

This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. This procedure performs following operations :

Disable UART Interrupts (Tx and Rx)
Disable the DMA transfer in the peripheral register (if enabled)
Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
Set handle State to READY
At abort completion, call user abort complete callback

This procedure is executed in Interrupt mode, meaning that abort procedure could be considered as completed only when user abort complete callback is executed (not when exiting function).

Return values:

HAL status

Definition at line 1901 of file stm32h7xx_hal_uart.c.

void HAL_UART_AbortCpltCallback ( UART_HandleTypeDef * huart )

UART Abort Complete callback.

Parameters:

huart UART handle.

Return values:

None

Definition at line 2633 of file stm32h7xx_hal_uart.c.

Referenced by HAL_UART_Abort_IT(), HAL_UART_UnRegisterCallback(), UART_DMARxAbortCallback(), UART_DMATxAbortCallback(), and UART_InitCallbacksToDefault().

HAL_StatusTypeDef HAL_UART_AbortReceive ( UART_HandleTypeDef * huart )

Abort ongoing Receive transfer (blocking mode).

Parameters:

huart UART handle.

Note:

This procedure could be used for aborting any ongoing Rx transfer started in Interrupt or DMA mode. This procedure performs following operations :

Disable UART Interrupts (Rx)
Disable the DMA transfer in the peripheral register (if enabled)
Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
Set handle State to READY

This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.

Return values:

HAL status

Definition at line 1833 of file stm32h7xx_hal_uart.c.

References __HAL_UART_CLEAR_FLAG, __HAL_UART_SEND_REQ, __UART_HandleTypeDef::ErrorCode, HAL_DMA_Abort(), HAL_DMA_ERROR_TIMEOUT, HAL_DMA_GetError(), HAL_UART_ERROR_DMA, HAL_UART_RECEPTION_STANDARD, HAL_UART_RECEPTION_TOIDLE, HAL_UART_STATE_READY, __UART_HandleTypeDef::hdmarx, __UART_HandleTypeDef::Instance, __UART_HandleTypeDef::ReceptionType, __UART_HandleTypeDef::RxState, __UART_HandleTypeDef::RxXferCount, UART_CLEAR_FEF, UART_CLEAR_NEF, UART_CLEAR_OREF, UART_CLEAR_PEF, UART_RXDATA_FLUSH_REQUEST, and __DMA_HandleTypeDef::XferAbortCallback.

HAL_StatusTypeDef HAL_UART_AbortReceive_IT ( UART_HandleTypeDef * huart )

Abort ongoing Receive transfer (Interrupt mode).

Parameters:

huart UART handle.

Note:

This procedure could be used for aborting any ongoing Rx transfer started in Interrupt or DMA mode. This procedure performs following operations :

Disable UART Interrupts (Rx)
Disable the DMA transfer in the peripheral register (if enabled)
Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
Set handle State to READY
At abort completion, call user abort complete callback

This procedure is executed in Interrupt mode, meaning that abort procedure could be considered as completed only when user abort complete callback is executed (not when exiting function).

Return values:

HAL status

Definition at line 2145 of file stm32h7xx_hal_uart.c.

References __HAL_UART_CLEAR_FLAG, __HAL_UART_SEND_REQ, __UART_HandleTypeDef::AbortReceiveCpltCallback, HAL_DMA_Abort_IT(), HAL_UART_AbortReceiveCpltCallback(), HAL_UART_RECEPTION_STANDARD, HAL_UART_RECEPTION_TOIDLE, HAL_UART_STATE_READY, __UART_HandleTypeDef::hdmarx, __UART_HandleTypeDef::Instance, __UART_HandleTypeDef::pRxBuffPtr, __UART_HandleTypeDef::ReceptionType, __UART_HandleTypeDef::RxState, __UART_HandleTypeDef::RxXferCount, UART_CLEAR_FEF, UART_CLEAR_NEF, UART_CLEAR_OREF, UART_CLEAR_PEF, UART_DMARxOnlyAbortCallback(), UART_RXDATA_FLUSH_REQUEST, and __DMA_HandleTypeDef::XferAbortCallback.

void HAL_UART_AbortReceiveCpltCallback ( UART_HandleTypeDef * huart )

UART Abort Receive Complete callback.

Parameters:

huart UART handle.

Return values:

None

Definition at line 2663 of file stm32h7xx_hal_uart.c.

Referenced by HAL_UART_AbortReceive_IT(), HAL_UART_UnRegisterCallback(), UART_DMARxOnlyAbortCallback(), and UART_InitCallbacksToDefault().

HAL_StatusTypeDef HAL_UART_AbortTransmit ( UART_HandleTypeDef * huart )

Abort ongoing Transmit transfer (blocking mode).

Parameters:

huart UART handle.

Note:

This procedure could be used for aborting any ongoing Tx transfer started in Interrupt or DMA mode. This procedure performs following operations :

Disable UART Interrupts (Tx)
Disable the DMA transfer in the peripheral register (if enabled)
Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
Set handle State to READY

This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.

Return values:

HAL status

Definition at line 1774 of file stm32h7xx_hal_uart.c.

References __HAL_UART_SEND_REQ, __UART_HandleTypeDef::ErrorCode, __UART_HandleTypeDef::FifoMode, __UART_HandleTypeDef::gState, HAL_DMA_Abort(), HAL_DMA_ERROR_TIMEOUT, HAL_DMA_GetError(), HAL_UART_ERROR_DMA, HAL_UART_STATE_READY, __UART_HandleTypeDef::hdmatx, __UART_HandleTypeDef::Instance, __UART_HandleTypeDef::TxXferCount, UART_FIFOMODE_ENABLE, UART_TXDATA_FLUSH_REQUEST, and __DMA_HandleTypeDef::XferAbortCallback.

HAL_StatusTypeDef HAL_UART_AbortTransmit_IT ( UART_HandleTypeDef * huart )

Abort ongoing Transmit transfer (Interrupt mode).

Parameters:

huart UART handle.

Note:

This procedure could be used for aborting any ongoing Tx transfer started in Interrupt or DMA mode. This procedure performs following operations :

Disable UART Interrupts (Tx)
Disable the DMA transfer in the peripheral register (if enabled)
Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
Set handle State to READY
At abort completion, call user abort complete callback

This procedure is executed in Interrupt mode, meaning that abort procedure could be considered as completed only when user abort complete callback is executed (not when exiting function).

Return values:

HAL status

Definition at line 2054 of file stm32h7xx_hal_uart.c.

References __HAL_UART_SEND_REQ, __UART_HandleTypeDef::AbortTransmitCpltCallback, __UART_HandleTypeDef::FifoMode, __UART_HandleTypeDef::gState, HAL_DMA_Abort_IT(), HAL_UART_AbortTransmitCpltCallback(), HAL_UART_STATE_READY, __UART_HandleTypeDef::hdmatx, __UART_HandleTypeDef::Instance, __UART_HandleTypeDef::TxISR, __UART_HandleTypeDef::TxXferCount, UART_DMATxOnlyAbortCallback(), UART_FIFOMODE_ENABLE, UART_TXDATA_FLUSH_REQUEST, and __DMA_HandleTypeDef::XferAbortCallback.

void HAL_UART_AbortTransmitCpltCallback ( UART_HandleTypeDef * huart )

UART Abort Complete callback.

Parameters:

huart UART handle.

Return values:

None

Definition at line 2648 of file stm32h7xx_hal_uart.c.

Referenced by HAL_UART_AbortTransmit_IT(), HAL_UART_UnRegisterCallback(), UART_DMATxOnlyAbortCallback(), and UART_InitCallbacksToDefault().

HAL_StatusTypeDef HAL_UART_DMAPause ( UART_HandleTypeDef * huart )

Pause the DMA Transfer.

Parameters:

huart UART handle.

Return values:

HAL status

Definition at line 1527 of file stm32h7xx_hal_uart.c.

References __UART_HandleTypeDef::gState, HAL_UART_STATE_BUSY_RX, HAL_UART_STATE_BUSY_TX, __UART_HandleTypeDef::Instance, and __UART_HandleTypeDef::RxState.

HAL_StatusTypeDef HAL_UART_DMAResume ( UART_HandleTypeDef * huart )

Resume the DMA Transfer.

Parameters:

huart UART handle.

Return values:

HAL status

Definition at line 1561 of file stm32h7xx_hal_uart.c.

References __HAL_UART_CLEAR_FLAG, __UART_HandleTypeDef::gState, HAL_UART_STATE_BUSY_RX, HAL_UART_STATE_BUSY_TX, __UART_HandleTypeDef::Init, __UART_HandleTypeDef::Instance, UART_InitTypeDef::Parity, __UART_HandleTypeDef::RxState, UART_CLEAR_OREF, and UART_PARITY_NONE.

HAL_StatusTypeDef HAL_UART_DMAStop ( UART_HandleTypeDef * huart )

Stop the DMA Transfer.

Parameters:

huart UART handle.

Return values:

HAL status

Definition at line 1596 of file stm32h7xx_hal_uart.c.

References __UART_HandleTypeDef::ErrorCode, __UART_HandleTypeDef::gState, HAL_DMA_Abort(), HAL_DMA_ERROR_TIMEOUT, HAL_DMA_GetError(), HAL_UART_ERROR_DMA, HAL_UART_STATE_BUSY_RX, HAL_UART_STATE_BUSY_TX, __UART_HandleTypeDef::hdmarx, __UART_HandleTypeDef::hdmatx, __UART_HandleTypeDef::Instance, __UART_HandleTypeDef::RxState, UART_EndRxTransfer(), and UART_EndTxTransfer().

void HAL_UART_ErrorCallback ( UART_HandleTypeDef * huart )

UART error callback.

Parameters:

huart UART handle.

Return values:

None

Definition at line 2618 of file stm32h7xx_hal_uart.c.

Referenced by HAL_UART_IRQHandler(), HAL_UART_UnRegisterCallback(), UART_DMAAbortOnError(), UART_DMAError(), UART_InitCallbacksToDefault(), UART_RxISR_16BIT_FIFOEN(), and UART_RxISR_8BIT_FIFOEN().

void HAL_UART_IRQHandler ( UART_HandleTypeDef * huart )

Handle UART interrupt request.

Parameters:

huart UART handle.

Return values:

None

Definition at line 2238 of file stm32h7xx_hal_uart.c.

HAL_StatusTypeDef HAL_UART_Receive	(	UART_HandleTypeDef *	huart,
		uint8_t *	pData,
		uint16_t	Size,
		uint32_t	Timeout
	)

Receive an amount of data in blocking mode.

Note:: When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), the received data is handled as a set of u16. In this case, Size must indicate the number of u16 available through pData.; When FIFO mode is enabled, the RXFNE flag is set as long as the RXFIFO is not empty. Read operations from the RDR register are performed when RXFNE flag is set. From hardware perspective, RXFNE flag and RXNE are mapped on the same bit-field.

Parameters:

huart	UART handle.
pData	Pointer to data buffer (u8 or u16 data elements).
Size	Amount of data elements (u8 or u16) to be received.
Timeout	Timeout duration.

Return values:

HAL status

Definition at line 1210 of file stm32h7xx_hal_uart.c.

HAL_StatusTypeDef HAL_UART_Receive_DMA	(	UART_HandleTypeDef *	huart,
		uint8_t *	pData,
		uint16_t	Size
	)

Receive an amount of data in DMA mode.

Note:: When the UART parity is enabled (PCE = 1), the received data contain the parity bit (MSB position).; When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), the received data is handled as a set of u16. In this case, Size must indicate the number of u16 available through pData.

Parameters:

huart	UART handle.
pData	Pointer to data buffer (u8 or u16 data elements).
Size	Amount of data elements (u8 or u16) to be received.

Return values:

HAL status

Definition at line 1489 of file stm32h7xx_hal_uart.c.

References HAL_UART_RECEPTION_STANDARD, HAL_UART_STATE_READY, __UART_HandleTypeDef::Instance, __UART_HandleTypeDef::ReceptionType, __UART_HandleTypeDef::RxState, and UART_Start_Receive_DMA().

HAL_StatusTypeDef HAL_UART_Receive_IT	(	UART_HandleTypeDef *	huart,
		uint8_t *	pData,
		uint16_t	Size
	)

Receive an amount of data in interrupt mode.

Note:: When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), the received data is handled as a set of u16. In this case, Size must indicate the number of u16 available through pData.

Parameters:

huart	UART handle.
pData	Pointer to data buffer (u8 or u16 data elements).
Size	Amount of data elements (u8 or u16) to be received.

Return values:

HAL status

Definition at line 1370 of file stm32h7xx_hal_uart.c.

References HAL_UART_RECEPTION_STANDARD, HAL_UART_STATE_READY, __UART_HandleTypeDef::Instance, __UART_HandleTypeDef::ReceptionType, __UART_HandleTypeDef::RxState, and UART_Start_Receive_IT().

void HAL_UART_RxCpltCallback ( UART_HandleTypeDef * huart )

Rx Transfer completed callback.

Parameters:

huart UART handle.

Return values:

None

Definition at line 2588 of file stm32h7xx_hal_uart.c.

Referenced by HAL_UART_UnRegisterCallback(), UART_DMAReceiveCplt(), UART_InitCallbacksToDefault(), UART_RxISR_16BIT(), UART_RxISR_16BIT_FIFOEN(), UART_RxISR_8BIT(), and UART_RxISR_8BIT_FIFOEN().

void HAL_UART_RxHalfCpltCallback ( UART_HandleTypeDef * huart )

Rx Half Transfer completed callback.

Parameters:

huart UART handle.

Return values:

None

Definition at line 2603 of file stm32h7xx_hal_uart.c.

Referenced by HAL_UART_UnRegisterCallback(), UART_DMARxHalfCplt(), and UART_InitCallbacksToDefault().

HAL_StatusTypeDef HAL_UART_Transmit	(	UART_HandleTypeDef *	huart,
		const uint8_t *	pData,
		uint16_t	Size,
		uint32_t	Timeout
	)

Send an amount of data in blocking mode.

Note:: When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), the sent data is handled as a set of u16. In this case, Size must indicate the number of u16 provided through pData.; When FIFO mode is enabled, writing a data in the TDR register adds one data to the TXFIFO. Write operations to the TDR register are performed when TXFNF flag is set. From hardware perspective, TXFNF flag and TXE are mapped on the same bit-field.

Parameters:

huart	UART handle.
pData	Pointer to data buffer (u8 or u16 data elements).
Size	Amount of data elements (u8 or u16) to be sent.
Timeout	Timeout duration.

Return values:

HAL status

Definition at line 1121 of file stm32h7xx_hal_uart.c.

References __UART_HandleTypeDef::ErrorCode, __UART_HandleTypeDef::gState, HAL_GetTick(), HAL_UART_ERROR_NONE, HAL_UART_STATE_BUSY_TX, HAL_UART_STATE_READY, __UART_HandleTypeDef::Init, __UART_HandleTypeDef::Instance, UART_InitTypeDef::Parity, __UART_HandleTypeDef::TxXferCount, __UART_HandleTypeDef::TxXferSize, UART_FLAG_TC, UART_FLAG_TXE, UART_PARITY_NONE, UART_WaitOnFlagUntilTimeout(), UART_WORDLENGTH_9B, and UART_InitTypeDef::WordLength.

HAL_StatusTypeDef HAL_UART_Transmit_DMA	(	UART_HandleTypeDef *	huart,
		const uint8_t *	pData,
		uint16_t	Size
	)

Send an amount of data in DMA mode.

Note:: When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), the sent data is handled as a set of u16. In this case, Size must indicate the number of u16 provided through pData.

Parameters:

huart	UART handle.
pData	Pointer to data buffer (u8 or u16 data elements).
Size	Amount of data elements (u8 or u16) to be sent.

Return values:

HAL status

Definition at line 1413 of file stm32h7xx_hal_uart.c.

References __HAL_UART_CLEAR_FLAG, __UART_HandleTypeDef::ErrorCode, __UART_HandleTypeDef::gState, HAL_DMA_Start_IT(), HAL_UART_ERROR_DMA, HAL_UART_ERROR_NONE, HAL_UART_STATE_BUSY_TX, HAL_UART_STATE_READY, __UART_HandleTypeDef::hdmatx, __UART_HandleTypeDef::Instance, __UART_HandleTypeDef::pTxBuffPtr, __UART_HandleTypeDef::TxXferCount, __UART_HandleTypeDef::TxXferSize, UART_CLEAR_TCF, UART_DMAError(), UART_DMATransmitCplt(), UART_DMATxHalfCplt(), __DMA_HandleTypeDef::XferAbortCallback, __DMA_HandleTypeDef::XferCpltCallback, __DMA_HandleTypeDef::XferErrorCallback, and __DMA_HandleTypeDef::XferHalfCpltCallback.

HAL_StatusTypeDef HAL_UART_Transmit_IT	(	UART_HandleTypeDef *	huart,
		const uint8_t *	pData,
		uint16_t	Size
	)

Send an amount of data in interrupt mode.

Note:: When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), the sent data is handled as a set of u16. In this case, Size must indicate the number of u16 provided through pData.

Parameters:

huart	UART handle.
pData	Pointer to data buffer (u8 or u16 data elements).
Size	Amount of data elements (u8 or u16) to be sent.

Return values:

HAL status

Definition at line 1296 of file stm32h7xx_hal_uart.c.

void HAL_UART_TxCpltCallback ( UART_HandleTypeDef * huart )

Tx Transfer completed callback.

Parameters:

huart UART handle.

Return values:

None

Definition at line 2558 of file stm32h7xx_hal_uart.c.

Referenced by HAL_UART_UnRegisterCallback(), UART_DMATransmitCplt(), UART_EndTransmit_IT(), and UART_InitCallbacksToDefault().

void HAL_UART_TxHalfCpltCallback ( UART_HandleTypeDef * huart )

Tx Half Transfer completed callback.

Parameters:

huart UART handle.

Return values:

None

Definition at line 2573 of file stm32h7xx_hal_uart.c.

Referenced by HAL_UART_UnRegisterCallback(), UART_DMATxHalfCplt(), and UART_InitCallbacksToDefault().

void HAL_UARTEx_RxEventCallback	(	UART_HandleTypeDef *	huart,
		uint16_t	Size
	)

Reception Event Callback (Rx event notification called after use of advanced reception service).

Parameters:

huart	UART handle
Size	Number of data available in application reception buffer (indicates a position in reception buffer until which, data are available)

Return values:

None

Definition at line 2680 of file stm32h7xx_hal_uart.c.

Referenced by HAL_UART_IRQHandler(), HAL_UART_UnRegisterRxEventCallback(), UART_DMAReceiveCplt(), UART_DMARxHalfCplt(), UART_InitCallbacksToDefault(), UART_RxISR_16BIT(), UART_RxISR_16BIT_FIFOEN(), UART_RxISR_8BIT(), and UART_RxISR_8BIT_FIFOEN().

Functions

Detailed Description

Function Documentation