Functions
void	USART_InitCallbacksToDefault (USART_HandleTypeDef *husart)
	Initialize the callbacks to their default values.
static void	USART_EndTransfer (USART_HandleTypeDef *husart)
	End ongoing transfer on USART peripheral (following error detection or Transfer completion).
static void	USART_DMATransmitCplt (DMA_HandleTypeDef *hdma)
	DMA USART transmit process complete callback.
static void	USART_DMAReceiveCplt (DMA_HandleTypeDef *hdma)
	DMA USART receive process complete callback.
static void	USART_DMATxHalfCplt (DMA_HandleTypeDef *hdma)
	DMA USART transmit process half complete callback.
static void	USART_DMARxHalfCplt (DMA_HandleTypeDef *hdma)
	DMA USART receive process half complete callback.
static void	USART_DMAError (DMA_HandleTypeDef *hdma)
	DMA USART communication error callback.
static void	USART_DMAAbortOnError (DMA_HandleTypeDef *hdma)
	DMA USART communication abort callback, when initiated by HAL services on Error (To be called at end of DMA Abort procedure following error occurrence).
static void	USART_DMATxAbortCallback (DMA_HandleTypeDef *hdma)
	DMA USART Tx communication abort callback, when initiated by user (To be called at end of DMA Tx Abort procedure following user abort request).
static void	USART_DMARxAbortCallback (DMA_HandleTypeDef *hdma)
	DMA USART Rx communication abort callback, when initiated by user (To be called at end of DMA Rx Abort procedure following user abort request).
static HAL_StatusTypeDef	USART_WaitOnFlagUntilTimeout (USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout)
	Handle USART Communication Timeout.
static HAL_StatusTypeDef	USART_SetConfig (USART_HandleTypeDef *husart)
	Configure the USART peripheral.
static HAL_StatusTypeDef	USART_CheckIdleState (USART_HandleTypeDef *husart)
	Check the USART Idle State.
static void	USART_TxISR_8BIT (USART_HandleTypeDef *husart)
	Simplex send an amount of data in non-blocking mode.
static void	USART_TxISR_16BIT (USART_HandleTypeDef *husart)
	Simplex send an amount of data in non-blocking mode.
static void	USART_EndTransmit_IT (USART_HandleTypeDef *husart)
	Wraps up transmission in non-blocking mode.
static void	USART_RxISR_8BIT (USART_HandleTypeDef *husart)
	Simplex receive an amount of data in non-blocking mode.
static void	USART_RxISR_16BIT (USART_HandleTypeDef *husart)
	Simplex receive an amount of data in non-blocking mode.

Function Documentation

static HAL_StatusTypeDef USART_CheckIdleState ( USART_HandleTypeDef * husart ) [static]

Check the USART Idle State.

Parameters:

husart USART handle.

Return values:

HAL status

Definition at line 3133 of file stm32l4xx_hal_usart.c.

References __USART_HandleTypeDef::ErrorCode, HAL_GetTick(), HAL_USART_ERROR_NONE, HAL_USART_STATE_READY, __USART_HandleTypeDef::Instance, __USART_HandleTypeDef::State, USART_TEACK_REACK_TIMEOUT, and USART_WaitOnFlagUntilTimeout().

Referenced by HAL_USART_Init().

static void USART_DMAAbortOnError ( DMA_HandleTypeDef * hdma ) [static]

DMA USART 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 2855 of file stm32l4xx_hal_usart.c.

References __USART_HandleTypeDef::ErrorCallback, HAL_USART_ErrorCallback(), __DMA_HandleTypeDef::Parent, __USART_HandleTypeDef::RxXferCount, and __USART_HandleTypeDef::TxXferCount.

Referenced by HAL_USART_IRQHandler().

static void USART_DMAError ( DMA_HandleTypeDef * hdma ) [static]

DMA USART communication error callback.

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 2829 of file stm32l4xx_hal_usart.c.

References __USART_HandleTypeDef::ErrorCallback, __USART_HandleTypeDef::ErrorCode, HAL_USART_ERROR_DMA, HAL_USART_ErrorCallback(), HAL_USART_STATE_READY, __DMA_HandleTypeDef::Parent, __USART_HandleTypeDef::RxXferCount, __USART_HandleTypeDef::State, __USART_HandleTypeDef::TxXferCount, and USART_EndTransfer().

Referenced by HAL_USART_Receive_DMA(), HAL_USART_Transmit_DMA(), and HAL_USART_TransmitReceive_DMA().

static void USART_DMAReceiveCplt ( DMA_HandleTypeDef * hdma ) [static]

DMA USART receive process complete callback.

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 2736 of file stm32l4xx_hal_usart.c.

References HAL_USART_RxCpltCallback(), HAL_USART_STATE_BUSY_RX, HAL_USART_STATE_READY, HAL_USART_TxRxCpltCallback(), __DMA_HandleTypeDef::Instance, __USART_HandleTypeDef::Instance, __DMA_HandleTypeDef::Parent, __USART_HandleTypeDef::RxCpltCallback, __USART_HandleTypeDef::RxXferCount, __USART_HandleTypeDef::State, and __USART_HandleTypeDef::TxRxCpltCallback.

Referenced by HAL_USART_Receive_DMA(), and HAL_USART_TransmitReceive_DMA().

static void USART_DMARxAbortCallback ( DMA_HandleTypeDef * hdma ) [static]

DMA USART 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 2926 of file stm32l4xx_hal_usart.c.

References __HAL_USART_CLEAR_FLAG, __USART_HandleTypeDef::AbortCpltCallback, __USART_HandleTypeDef::ErrorCode, HAL_USART_AbortCpltCallback(), HAL_USART_ERROR_NONE, HAL_USART_STATE_READY, __USART_HandleTypeDef::hdmarx, __USART_HandleTypeDef::hdmatx, __DMA_HandleTypeDef::Parent, __USART_HandleTypeDef::RxXferCount, __USART_HandleTypeDef::State, __USART_HandleTypeDef::TxXferCount, USART_CLEAR_FEF, USART_CLEAR_NEF, USART_CLEAR_OREF, USART_CLEAR_PEF, and __DMA_HandleTypeDef::XferAbortCallback.

Referenced by HAL_USART_Abort_IT().

static void USART_DMARxHalfCplt ( DMA_HandleTypeDef * hdma ) [static]

DMA USART receive process half complete callback.

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 2811 of file stm32l4xx_hal_usart.c.

References HAL_USART_RxHalfCpltCallback(), __DMA_HandleTypeDef::Parent, and __USART_HandleTypeDef::RxHalfCpltCallback.

Referenced by HAL_USART_Receive_DMA(), and HAL_USART_TransmitReceive_DMA().

static void USART_DMATransmitCplt ( DMA_HandleTypeDef * hdma ) [static]

DMA USART transmit process complete callback.

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 2678 of file stm32l4xx_hal_usart.c.

References __HAL_USART_ENABLE_IT, HAL_USART_STATE_BUSY_TX, HAL_USART_TxCpltCallback(), __DMA_HandleTypeDef::Instance, __USART_HandleTypeDef::Instance, __DMA_HandleTypeDef::Parent, __USART_HandleTypeDef::State, __USART_HandleTypeDef::TxCpltCallback, __USART_HandleTypeDef::TxXferCount, and USART_IT_TC.

Referenced by HAL_USART_Transmit_DMA(), and HAL_USART_TransmitReceive_DMA().

static void USART_DMATxAbortCallback ( DMA_HandleTypeDef * hdma ) [static]

DMA USART 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 2878 of file stm32l4xx_hal_usart.c.

References __HAL_USART_CLEAR_FLAG, __USART_HandleTypeDef::AbortCpltCallback, __USART_HandleTypeDef::ErrorCode, HAL_USART_AbortCpltCallback(), HAL_USART_ERROR_NONE, HAL_USART_STATE_READY, __USART_HandleTypeDef::hdmarx, __USART_HandleTypeDef::hdmatx, __DMA_HandleTypeDef::Parent, __USART_HandleTypeDef::RxXferCount, __USART_HandleTypeDef::State, __USART_HandleTypeDef::TxXferCount, USART_CLEAR_FEF, USART_CLEAR_NEF, USART_CLEAR_OREF, USART_CLEAR_PEF, and __DMA_HandleTypeDef::XferAbortCallback.

Referenced by HAL_USART_Abort_IT().

static void USART_DMATxHalfCplt ( DMA_HandleTypeDef * hdma ) [static]

DMA USART transmit process half complete callback.

Parameters:

hdma	DMA handle.

Return values:

None

Definition at line 2718 of file stm32l4xx_hal_usart.c.

References HAL_USART_TxHalfCpltCallback(), __DMA_HandleTypeDef::Parent, and __USART_HandleTypeDef::TxHalfCpltCallback.

Referenced by HAL_USART_Transmit_DMA(), and HAL_USART_TransmitReceive_DMA().

static void USART_EndTransfer ( USART_HandleTypeDef * husart ) [static]

End ongoing transfer on USART peripheral (following error detection or Transfer completion).

Parameters:

husart USART handle.

Return values:

None

Definition at line 2656 of file stm32l4xx_hal_usart.c.

References HAL_USART_STATE_READY, __USART_HandleTypeDef::Instance, and __USART_HandleTypeDef::State.

Referenced by HAL_USART_DMAStop(), HAL_USART_IRQHandler(), and USART_DMAError().

static void USART_EndTransmit_IT ( USART_HandleTypeDef * husart ) [static]

Wraps up transmission in non-blocking mode.

Parameters:

husart Pointer to a USART_HandleTypeDef structure that contains the configuration information for the specified USART module.

Return values:

None

Definition at line 3344 of file stm32l4xx_hal_usart.c.

References __HAL_USART_CLEAR_OREFLAG, __HAL_USART_DISABLE_IT, __HAL_USART_SEND_REQ, HAL_USART_STATE_BUSY_TX, HAL_USART_STATE_READY, HAL_USART_TxCpltCallback(), HAL_USART_TxRxCpltCallback(), __USART_HandleTypeDef::RxXferCount, __USART_HandleTypeDef::State, __USART_HandleTypeDef::TxCpltCallback, __USART_HandleTypeDef::TxISR, __USART_HandleTypeDef::TxRxCpltCallback, USART_IT_ERR, USART_IT_TC, and USART_RXDATA_FLUSH_REQUEST.

Referenced by HAL_USART_IRQHandler().

void USART_InitCallbacksToDefault ( USART_HandleTypeDef * husart )

Initialize the callbacks to their default values.

Parameters:

husart USART handle.

Return values:

none

Definition at line 2634 of file stm32l4xx_hal_usart.c.

References __USART_HandleTypeDef::AbortCpltCallback, __USART_HandleTypeDef::ErrorCallback, HAL_USART_AbortCpltCallback(), HAL_USART_ErrorCallback(), HAL_USART_RxCpltCallback(), HAL_USART_RxHalfCpltCallback(), HAL_USART_TxCpltCallback(), HAL_USART_TxHalfCpltCallback(), HAL_USART_TxRxCpltCallback(), __USART_HandleTypeDef::RxCpltCallback, __USART_HandleTypeDef::RxHalfCpltCallback, __USART_HandleTypeDef::TxCpltCallback, __USART_HandleTypeDef::TxHalfCpltCallback, and __USART_HandleTypeDef::TxRxCpltCallback.

Referenced by HAL_USART_Init().

static void USART_RxISR_16BIT ( USART_HandleTypeDef * husart ) [static]

Simplex receive an amount of data in non-blocking mode.

Note:: Function called under interruption only, once interruptions have been enabled by HAL_USART_Receive_IT().; ISR function executed when FIFO mode is disabled and when the data word length is 9 bits long.

Parameters:

husart USART handle

Return values:

None

Definition at line 3513 of file stm32l4xx_hal_usart.c.

Referenced by HAL_USART_Receive_IT(), and HAL_USART_TransmitReceive_IT().

static void USART_RxISR_8BIT ( USART_HandleTypeDef * husart ) [static]

Simplex receive an amount of data in non-blocking mode.

Note:: Function called under interruption only, once interruptions have been enabled by HAL_USART_Receive_IT().; ISR function executed when FIFO mode is disabled and when the data word length is less than 9 bits long.

Parameters:

husart USART handle

Return values:

None

Definition at line 3401 of file stm32l4xx_hal_usart.c.

Referenced by HAL_USART_Receive_IT(), and HAL_USART_TransmitReceive_IT().

static HAL_StatusTypeDef USART_SetConfig ( USART_HandleTypeDef * husart ) [static]

Configure the USART peripheral.

Parameters:

husart USART handle.

Return values:

HAL status

Definition at line 3003 of file stm32l4xx_hal_usart.c.

References assert_param, USART_InitTypeDef::BaudRate, USART_InitTypeDef::CLKLastBit, USART_InitTypeDef::CLKPhase, USART_InitTypeDef::CLKPolarity, HAL_RCC_GetPCLK1Freq(), HAL_RCC_GetPCLK2Freq(), HAL_RCC_GetSysClockFreq(), HSI_VALUE, __USART_HandleTypeDef::Init, __USART_HandleTypeDef::Instance, IS_USART_BAUDRATE, IS_USART_LASTBIT, IS_USART_MODE, IS_USART_PARITY, IS_USART_PHASE, IS_USART_POLARITY, IS_USART_STOPBITS, IS_USART_WORD_LENGTH, LSE_VALUE, USART_InitTypeDef::Mode, USART_InitTypeDef::Parity, __USART_HandleTypeDef::RxISR, USART_InitTypeDef::StopBits, __USART_HandleTypeDef::TxISR, USART_BRR_MAX, USART_BRR_MIN, USART_CLOCK_ENABLE, USART_CLOCKSOURCE_HSI, USART_CLOCKSOURCE_LSE, USART_CLOCKSOURCE_PCLK1, USART_CLOCKSOURCE_PCLK2, USART_CLOCKSOURCE_SYSCLK, USART_CR1_FIELDS, USART_CR2_FIELDS, USART_DIV_SAMPLING8, USART_GETCLOCKSOURCE, and USART_InitTypeDef::WordLength.

Referenced by HAL_USART_Init().

static void USART_TxISR_16BIT ( USART_HandleTypeDef * husart ) [static]

Simplex send an amount of data in non-blocking mode.

Note:: Function called under interruption only, once interruptions have been enabled by HAL_USART_Transmit_IT().; The USART errors are not managed to avoid the overrun error.; ISR function executed when FIFO mode is disabled and when the data word length is 9 bits long.

Parameters:

husart USART handle.

Return values:

None

Definition at line 3218 of file stm32l4xx_hal_usart.c.

References __HAL_USART_DISABLE_IT, __HAL_USART_ENABLE_IT, HAL_USART_STATE_BUSY_TX, HAL_USART_STATE_BUSY_TX_RX, __USART_HandleTypeDef::Instance, __USART_HandleTypeDef::pTxBuffPtr, __USART_HandleTypeDef::State, __USART_HandleTypeDef::TxXferCount, USART_IT_TC, and USART_IT_TXE.

Referenced by HAL_USART_Transmit_IT(), and HAL_USART_TransmitReceive_IT().

static void USART_TxISR_8BIT ( USART_HandleTypeDef * husart ) [static]

Simplex send an amount of data in non-blocking mode.

Note:: Function called under interruption only, once interruptions have been enabled by HAL_USART_Transmit_IT().; The USART errors are not managed to avoid the overrun error.; ISR function executed when FIFO mode is disabled and when the data word length is less than 9 bits long.

Parameters:

husart USART handle.

Return values:

None

Definition at line 3183 of file stm32l4xx_hal_usart.c.

References __HAL_USART_DISABLE_IT, __HAL_USART_ENABLE_IT, HAL_USART_STATE_BUSY_TX, HAL_USART_STATE_BUSY_TX_RX, __USART_HandleTypeDef::Instance, __USART_HandleTypeDef::pTxBuffPtr, __USART_HandleTypeDef::State, __USART_HandleTypeDef::TxXferCount, USART_IT_TC, and USART_IT_TXE.

Referenced by HAL_USART_Transmit_IT(), and HAL_USART_TransmitReceive_IT().

static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout	(	USART_HandleTypeDef *	husart,
		uint32_t	Flag,
		FlagStatus	Status,
		uint32_t	Tickstart,
		uint32_t	Timeout
	)		`[static]`

Handle USART Communication Timeout.

It waits until a flag is no longer in the specified status.

Parameters:

husart	USART handle.
Flag	Specifies the USART flag to check.
Status	the actual Flag status (SET or RESET).
Tickstart	Tick start value
Timeout	timeout duration.

Return values:

HAL status

Definition at line 2975 of file stm32l4xx_hal_usart.c.

References __HAL_USART_GET_FLAG, HAL_GetTick(), HAL_USART_STATE_READY, and __USART_HandleTypeDef::State.

Referenced by HAL_USART_Receive(), HAL_USART_Transmit(), HAL_USART_TransmitReceive(), and USART_CheckIdleState().

Functions

Function Documentation