Functions
static void	UART_EndTxTransfer (UART_HandleTypeDef *huart)
	End ongoing Tx transfer on UART peripheral (following error detection or Transmit completion).
static void	UART_EndRxTransfer (UART_HandleTypeDef *huart)
	End ongoing Rx transfer on UART peripheral (following error detection or Reception completion).
static void	UART_DMATransmitCplt (DMA_HandleTypeDef *hdma)
	DMA UART transmit process complete callback.
static void	UART_DMAReceiveCplt (DMA_HandleTypeDef *hdma)
	DMA UART receive process complete callback.
static void	UART_DMARxHalfCplt (DMA_HandleTypeDef *hdma)
	DMA UART receive process half complete callback.
static void	UART_DMATxHalfCplt (DMA_HandleTypeDef *hdma)
	DMA UART transmit process half complete callback.
static void	UART_DMAError (DMA_HandleTypeDef *hdma)
	DMA UART communication error callback.
static void	UART_DMAAbortOnError (DMA_HandleTypeDef *hdma)
	DMA UART communication abort callback, when initiated by HAL services on Error (To be called at end of DMA Abort procedure following error occurrence).
static void	UART_DMATxAbortCallback (DMA_HandleTypeDef *hdma)
	DMA UART Tx communication abort callback, when initiated by user (To be called at end of DMA Tx Abort procedure following user abort request).
static void	UART_DMARxAbortCallback (DMA_HandleTypeDef *hdma)
	DMA UART Rx communication abort callback, when initiated by user (To be called at end of DMA Rx Abort procedure following user abort request).
static void	UART_DMATxOnlyAbortCallback (DMA_HandleTypeDef *hdma)
	DMA UART Tx communication abort callback, when initiated by user by a call to HAL_UART_AbortTransmit_IT API (Abort only Tx transfer) (This callback is executed at end of DMA Tx Abort procedure following user abort request, and leads to user Tx Abort Complete callback execution).
static void	UART_DMARxOnlyAbortCallback (DMA_HandleTypeDef *hdma)
	DMA UART Rx communication abort callback, when initiated by user by a call to HAL_UART_AbortReceive_IT API (Abort only Rx transfer) (This callback is executed at end of DMA Rx Abort procedure following user abort request, and leads to user Rx Abort Complete callback execution).
static void	UART_TxISR_8BIT (UART_HandleTypeDef *huart)
	TX interrupt handler for 7 or 8 bits data word length .
static void	UART_TxISR_16BIT (UART_HandleTypeDef *huart)
	TX interrupt handler for 9 bits data word length.
static void	UART_EndTransmit_IT (UART_HandleTypeDef *huart)
	Wrap up transmission in non-blocking mode.
static void	UART_RxISR_8BIT (UART_HandleTypeDef *huart)
	RX interrupt handler for 7 or 8 bits data word length .
static void	UART_RxISR_16BIT (UART_HandleTypeDef *huart)
	RX interrupt handler for 9 bits data word length .
void	UART_InitCallbacksToDefault (UART_HandleTypeDef *huart)
	Initialize the callbacks to their default values.
HAL_StatusTypeDef	UART_SetConfig (UART_HandleTypeDef *huart)
	Configure the UART peripheral.
void	UART_AdvFeatureConfig (UART_HandleTypeDef *huart)
	Configure the UART peripheral advanced features.
HAL_StatusTypeDef	UART_CheckIdleState (UART_HandleTypeDef *huart)
	Check the UART Idle State.
HAL_StatusTypeDef	UART_WaitOnFlagUntilTimeout (UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout)
	This function handles UART Communication Timeout.
HAL_StatusTypeDef	UART_Start_Receive_IT (UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
	Start Receive operation in interrupt mode.
HAL_StatusTypeDef	UART_Start_Receive_DMA (UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
	Start Receive operation in DMA mode.

Function Documentation

void UART_AdvFeatureConfig ( UART_HandleTypeDef * huart )

Configure the UART peripheral advanced features.

Parameters:

huart UART handle.

Return values:

None

Definition at line 3401 of file stm32l4xx_hal_uart.c.

Referenced by HAL_HalfDuplex_Init(), HAL_LIN_Init(), HAL_MultiProcessor_Init(), HAL_RS485Ex_Init(), and HAL_UART_Init().

HAL_StatusTypeDef UART_CheckIdleState ( UART_HandleTypeDef * huart )

Check the UART Idle State.

Parameters:

huart UART handle.

Return values:

HAL status

Definition at line 3475 of file stm32l4xx_hal_uart.c.

References __UART_HandleTypeDef::ErrorCode, __UART_HandleTypeDef::gState, HAL_GetTick(), HAL_UART_ERROR_NONE, HAL_UART_RECEPTION_STANDARD, HAL_UART_STATE_READY, HAL_UART_TIMEOUT_VALUE, __UART_HandleTypeDef::Instance, __UART_HandleTypeDef::ReceptionType, __UART_HandleTypeDef::RxState, and UART_WaitOnFlagUntilTimeout().

Referenced by HAL_HalfDuplex_Init(), HAL_LIN_Init(), HAL_MultiProcessor_DisableMuteMode(), HAL_MultiProcessor_EnableMuteMode(), HAL_MultiProcessor_Init(), HAL_MultiProcessorEx_AddressLength_Set(), HAL_RS485Ex_Init(), and HAL_UART_Init().

static void UART_DMAAbortOnError ( DMA_HandleTypeDef * hdma ) [static]

DMA UART communication abort callback, when initiated by HAL services on Error (To be called at end of DMA Abort procedure following error occurrence).

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 3994 of file stm32l4xx_hal_uart.c.

References __UART_HandleTypeDef::ErrorCallback, HAL_UART_ErrorCallback(), __DMA_HandleTypeDef::Parent, __UART_HandleTypeDef::RxXferCount, and __UART_HandleTypeDef::TxXferCount.

Referenced by HAL_UART_IRQHandler().

static void UART_DMAError ( DMA_HandleTypeDef * hdma ) [static]

DMA UART communication error callback.

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 3954 of file stm32l4xx_hal_uart.c.

References __UART_HandleTypeDef::ErrorCallback, __UART_HandleTypeDef::ErrorCode, __UART_HandleTypeDef::gState, HAL_UART_ERROR_DMA, HAL_UART_ErrorCallback(), HAL_UART_STATE_BUSY_RX, HAL_UART_STATE_BUSY_TX, __UART_HandleTypeDef::Instance, __DMA_HandleTypeDef::Parent, __UART_HandleTypeDef::RxState, __UART_HandleTypeDef::RxXferCount, __UART_HandleTypeDef::TxXferCount, UART_EndRxTransfer(), and UART_EndTxTransfer().

Referenced by HAL_UART_Transmit_DMA(), and UART_Start_Receive_DMA().

static void UART_DMAReceiveCplt ( DMA_HandleTypeDef * hdma ) [static]

DMA UART receive process complete callback.

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 3863 of file stm32l4xx_hal_uart.c.

References HAL_UART_RECEPTION_TOIDLE, HAL_UART_RxCpltCallback(), HAL_UART_STATE_READY, HAL_UARTEx_RxEventCallback(), __DMA_HandleTypeDef::Instance, __UART_HandleTypeDef::Instance, __DMA_HandleTypeDef::Parent, __UART_HandleTypeDef::ReceptionType, __UART_HandleTypeDef::RxCpltCallback, __UART_HandleTypeDef::RxEventCallback, __UART_HandleTypeDef::RxState, __UART_HandleTypeDef::RxXferCount, and __UART_HandleTypeDef::RxXferSize.

Referenced by UART_Start_Receive_DMA().

static void UART_DMARxAbortCallback ( DMA_HandleTypeDef * hdma ) [static]

DMA UART Rx communication abort callback, when initiated by user (To be called at end of DMA Rx Abort procedure following user abort request).

Note:: When this callback is executed, User Abort complete call back is called only if no Abort still ongoing for Tx DMA Handle.

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 4074 of file stm32l4xx_hal_uart.c.

Referenced by HAL_UART_Abort_IT().

static void UART_DMARxHalfCplt ( DMA_HandleTypeDef * hdma ) [static]

DMA UART receive process half complete callback.

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 3920 of file stm32l4xx_hal_uart.c.

References HAL_UART_RECEPTION_TOIDLE, HAL_UART_RxHalfCpltCallback(), HAL_UARTEx_RxEventCallback(), __DMA_HandleTypeDef::Parent, __UART_HandleTypeDef::ReceptionType, __UART_HandleTypeDef::RxEventCallback, __UART_HandleTypeDef::RxHalfCpltCallback, and __UART_HandleTypeDef::RxXferSize.

Referenced by UART_Start_Receive_DMA().

static void UART_DMARxOnlyAbortCallback ( DMA_HandleTypeDef * hdma ) [static]

DMA UART Rx communication abort callback, when initiated by user by a call to HAL_UART_AbortReceive_IT API (Abort only Rx transfer) (This callback is executed at end of DMA Rx Abort procedure following user abort request, and leads to user Rx Abort Complete callback execution).

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 4161 of file stm32l4xx_hal_uart.c.

References __HAL_UART_CLEAR_FLAG, __HAL_UART_SEND_REQ, __UART_HandleTypeDef::AbortReceiveCpltCallback, HAL_UART_AbortReceiveCpltCallback(), HAL_UART_RECEPTION_STANDARD, HAL_UART_STATE_READY, __UART_HandleTypeDef::ReceptionType, __UART_HandleTypeDef::RxState, __UART_HandleTypeDef::RxXferCount, UART_CLEAR_FEF, UART_CLEAR_NEF, UART_CLEAR_OREF, UART_CLEAR_PEF, and UART_RXDATA_FLUSH_REQUEST.

Referenced by HAL_UART_AbortReceive_IT().

static void UART_DMATransmitCplt ( DMA_HandleTypeDef * hdma ) [static]

DMA UART transmit process complete callback.

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 3811 of file stm32l4xx_hal_uart.c.

References HAL_UART_TxCpltCallback(), __DMA_HandleTypeDef::Instance, __UART_HandleTypeDef::Instance, __DMA_HandleTypeDef::Parent, __UART_HandleTypeDef::TxCpltCallback, and __UART_HandleTypeDef::TxXferCount.

Referenced by HAL_UART_Transmit_DMA().

static void UART_DMATxAbortCallback ( DMA_HandleTypeDef * hdma ) [static]

DMA UART Tx communication abort callback, when initiated by user (To be called at end of DMA Tx Abort procedure following user abort request).

Note:: When this callback is executed, User Abort complete call back is called only if no Abort still ongoing for Rx DMA Handle.

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 4017 of file stm32l4xx_hal_uart.c.

Referenced by HAL_UART_Abort_IT().

static void UART_DMATxHalfCplt ( DMA_HandleTypeDef * hdma ) [static]

DMA UART transmit process half complete callback.

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 3845 of file stm32l4xx_hal_uart.c.

References HAL_UART_TxHalfCpltCallback(), __DMA_HandleTypeDef::Parent, and __UART_HandleTypeDef::TxHalfCpltCallback.

Referenced by HAL_UART_Transmit_DMA().

static void UART_DMATxOnlyAbortCallback ( DMA_HandleTypeDef * hdma ) [static]

DMA UART Tx communication abort callback, when initiated by user by a call to HAL_UART_AbortTransmit_IT API (Abort only Tx transfer) (This callback is executed at end of DMA Tx Abort procedure following user abort request, and leads to user Tx Abort Complete callback execution).

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 4126 of file stm32l4xx_hal_uart.c.

References __HAL_UART_SEND_REQ, __UART_HandleTypeDef::AbortTransmitCpltCallback, __UART_HandleTypeDef::gState, HAL_UART_AbortTransmitCpltCallback(), HAL_UART_STATE_READY, __DMA_HandleTypeDef::Parent, __UART_HandleTypeDef::TxXferCount, and UART_TXDATA_FLUSH_REQUEST.

Referenced by HAL_UART_AbortTransmit_IT().

static void UART_EndRxTransfer ( UART_HandleTypeDef * huart ) [static]

End ongoing Rx transfer on UART peripheral (following error detection or Reception completion).

Parameters:

huart UART handle.

Return values:

None

Definition at line 3780 of file stm32l4xx_hal_uart.c.

References HAL_UART_RECEPTION_STANDARD, HAL_UART_RECEPTION_TOIDLE, HAL_UART_STATE_READY, __UART_HandleTypeDef::Instance, __UART_HandleTypeDef::ReceptionType, __UART_HandleTypeDef::RxISR, and __UART_HandleTypeDef::RxState.

Referenced by HAL_UART_DMAStop(), HAL_UART_IRQHandler(), and UART_DMAError().

static void UART_EndTransmit_IT ( UART_HandleTypeDef * huart ) [static]

Wrap up transmission in non-blocking mode.

Parameters:

huart pointer to a UART_HandleTypeDef structure that contains the configuration information for the specified UART module.

Return values:

None

Definition at line 4346 of file stm32l4xx_hal_uart.c.

References __UART_HandleTypeDef::gState, HAL_UART_STATE_READY, HAL_UART_TxCpltCallback(), __UART_HandleTypeDef::Instance, __UART_HandleTypeDef::TxCpltCallback, and __UART_HandleTypeDef::TxISR.

Referenced by HAL_UART_IRQHandler().

static void UART_EndTxTransfer ( UART_HandleTypeDef * huart ) [static]

End ongoing Tx transfer on UART peripheral (following error detection or Transmit completion).

Parameters:

huart UART handle.

Return values:

None

Definition at line 3759 of file stm32l4xx_hal_uart.c.

References __UART_HandleTypeDef::gState, HAL_UART_STATE_READY, and __UART_HandleTypeDef::Instance.

Referenced by HAL_UART_DMAStop(), and UART_DMAError().

void UART_InitCallbacksToDefault ( UART_HandleTypeDef * huart )

Initialize the callbacks to their default values.

Parameters:

huart UART handle.

Return values:

none

Definition at line 3120 of file stm32l4xx_hal_uart.c.

Referenced by HAL_HalfDuplex_Init(), HAL_LIN_Init(), HAL_MultiProcessor_Init(), HAL_RS485Ex_Init(), and HAL_UART_Init().

static void UART_RxISR_16BIT ( UART_HandleTypeDef * huart ) [static]

RX interrupt handler for 9 bits data word length .

Note:: Function is called under interruption only, once interruptions have been enabled by HAL_UART_Receive_IT()

Parameters:

huart UART handle.

Return values:

None

Definition at line 4452 of file stm32l4xx_hal_uart.c.

Referenced by UART_Start_Receive_IT().

static void UART_RxISR_8BIT ( UART_HandleTypeDef * huart ) [static]

RX interrupt handler for 7 or 8 bits data word length .

Parameters:

huart UART handle.

Return values:

None

Definition at line 4371 of file stm32l4xx_hal_uart.c.

Referenced by UART_Start_Receive_IT().

HAL_StatusTypeDef UART_SetConfig ( UART_HandleTypeDef * huart )

Configure the UART peripheral.

Parameters:

huart UART handle.

Return values:

HAL status

Definition at line 3146 of file stm32l4xx_hal_uart.c.

References assert_param, UART_InitTypeDef::BaudRate, HAL_RCC_GetPCLK1Freq(), HAL_RCC_GetPCLK2Freq(), HAL_RCC_GetSysClockFreq(), HSI_VALUE, UART_InitTypeDef::HwFlowCtl, __UART_HandleTypeDef::Init, __UART_HandleTypeDef::Instance, IS_LPUART_STOPBITS, IS_UART_BAUDRATE, IS_UART_HARDWARE_FLOW_CONTROL, IS_UART_MODE, IS_UART_ONE_BIT_SAMPLE, IS_UART_OVERSAMPLING, IS_UART_PARITY, IS_UART_STOPBITS, IS_UART_WORD_LENGTH, LPUART_BRR_MAX, LPUART_BRR_MIN, LSE_VALUE, UART_InitTypeDef::Mode, UART_InitTypeDef::OneBitSampling, UART_InitTypeDef::OverSampling, UART_InitTypeDef::Parity, __UART_HandleTypeDef::RxISR, UART_InitTypeDef::StopBits, __UART_HandleTypeDef::TxISR, UART_BRR_MAX, UART_BRR_MIN, UART_CLOCKSOURCE_HSI, UART_CLOCKSOURCE_LSE, UART_CLOCKSOURCE_PCLK1, UART_CLOCKSOURCE_PCLK2, UART_CLOCKSOURCE_SYSCLK, UART_DIV_LPUART, UART_DIV_SAMPLING16, UART_DIV_SAMPLING8, UART_GETCLOCKSOURCE, UART_INSTANCE_LOWPOWER, UART_OVERSAMPLING_8, USART_CR1_FIELDS, USART_CR3_FIELDS, and UART_InitTypeDef::WordLength.

Referenced by HAL_HalfDuplex_Init(), HAL_LIN_Init(), HAL_MultiProcessor_Init(), HAL_RS485Ex_Init(), and HAL_UART_Init().

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

Start Receive operation in DMA mode.

Note:: This function could be called by all HAL UART API providing reception in DMA mode.; When calling this function, parameters validity is considered as already checked, i.e. Rx State, buffer address, ... UART Handle is assumed as Locked.

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 3699 of file stm32l4xx_hal_uart.c.

References __UART_HandleTypeDef::ErrorCode, HAL_DMA_Start_IT(), HAL_UART_ERROR_DMA, HAL_UART_ERROR_NONE, HAL_UART_STATE_BUSY_RX, HAL_UART_STATE_READY, __UART_HandleTypeDef::hdmarx, __UART_HandleTypeDef::Init, __UART_HandleTypeDef::Instance, UART_InitTypeDef::Parity, __UART_HandleTypeDef::pRxBuffPtr, __UART_HandleTypeDef::RxState, __UART_HandleTypeDef::RxXferSize, UART_DMAError(), UART_DMAReceiveCplt(), UART_DMARxHalfCplt(), UART_PARITY_NONE, __DMA_HandleTypeDef::XferAbortCallback, __DMA_HandleTypeDef::XferCpltCallback, __DMA_HandleTypeDef::XferErrorCallback, and __DMA_HandleTypeDef::XferHalfCpltCallback.

Referenced by HAL_UART_Receive_DMA(), and HAL_UARTEx_ReceiveToIdle_DMA().

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

Start Receive operation in interrupt mode.

Note:: This function could be called by all HAL UART API providing reception in Interrupt mode.; When calling this function, parameters validity is considered as already checked, i.e. Rx State, buffer address, ... UART Handle is assumed as Locked.

Parameters: