Functions
__STATIC_INLINE void	LL_LPUART_Enable (USART_TypeDef *LPUARTx)
	LPUART Enable CR1 UE LL_LPUART_Enable. More...

__STATIC_INLINE void	LL_LPUART_Disable (USART_TypeDef *LPUARTx)
	LPUART Disable. More...

__STATIC_INLINE uint32_t	LL_LPUART_IsEnabled (USART_TypeDef *LPUARTx)
	Indicate if LPUART is enabled CR1 UE LL_LPUART_IsEnabled. More...

__STATIC_INLINE void	LL_LPUART_EnableFIFO (USART_TypeDef *LPUARTx)
	FIFO Mode Enable CR1 FIFOEN LL_LPUART_EnableFIFO. More...

__STATIC_INLINE void	LL_LPUART_DisableFIFO (USART_TypeDef *LPUARTx)
	FIFO Mode Disable CR1 FIFOEN LL_LPUART_DisableFIFO. More...

__STATIC_INLINE uint32_t	LL_LPUART_IsEnabledFIFO (USART_TypeDef *LPUARTx)
	Indicate if FIFO Mode is enabled CR1 FIFOEN LL_LPUART_IsEnabledFIFO. More...

__STATIC_INLINE void	LL_LPUART_SetTXFIFOThreshold (USART_TypeDef *LPUARTx, uint32_t Threshold)
	Configure TX FIFO Threshold CR3 TXFTCFG LL_LPUART_SetTXFIFOThreshold. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetTXFIFOThreshold (USART_TypeDef *LPUARTx)
	Return TX FIFO Threshold Configuration CR3 TXFTCFG LL_LPUART_GetTXFIFOThreshold. More...

__STATIC_INLINE void	LL_LPUART_SetRXFIFOThreshold (USART_TypeDef *LPUARTx, uint32_t Threshold)
	Configure RX FIFO Threshold CR3 RXFTCFG LL_LPUART_SetRXFIFOThreshold. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetRXFIFOThreshold (USART_TypeDef *LPUARTx)
	Return RX FIFO Threshold Configuration CR3 RXFTCFG LL_LPUART_GetRXFIFOThreshold. More...

__STATIC_INLINE void	LL_LPUART_ConfigFIFOsThreshold (USART_TypeDef *LPUARTx, uint32_t TXThreshold, uint32_t RXThreshold)
	Configure TX and RX FIFOs Threshold CR3 TXFTCFG LL_LPUART_ConfigFIFOsThreshold CR3 RXFTCFG LL_LPUART_ConfigFIFOsThreshold. More...

__STATIC_INLINE void	LL_LPUART_EnableInStopMode (USART_TypeDef *LPUARTx)
	LPUART enabled in STOP Mode. More...

__STATIC_INLINE void	LL_LPUART_DisableInStopMode (USART_TypeDef *LPUARTx)
	LPUART disabled in STOP Mode. More...

__STATIC_INLINE uint32_t	LL_LPUART_IsEnabledInStopMode (USART_TypeDef *LPUARTx)
	Indicate if LPUART is enabled in STOP Mode (able to wake up MCU from Stop mode or not) CR1 UESM LL_LPUART_IsEnabledInStopMode. More...

__STATIC_INLINE void	LL_LPUART_EnableClockInStopMode (USART_TypeDef *LPUARTx)
	LPUART Clock enabled in STOP Mode. More...

__STATIC_INLINE void	LL_LPUART_DisableClockInStopMode (USART_TypeDef *LPUARTx)
	LPUART clock disabled in STOP Mode. More...

__STATIC_INLINE uint32_t	LL_LPUART_IsClockEnabledInStopMode (USART_TypeDef *LPUARTx)
	Indicate if LPUART clock is enabled in STOP Mode CR3 UCESM LL_LPUART_IsClockEnabledInStopMode. More...

__STATIC_INLINE void	LL_LPUART_EnableDirectionRx (USART_TypeDef *LPUARTx)
	Receiver Enable (Receiver is enabled and begins searching for a start bit) CR1 RE LL_LPUART_EnableDirectionRx. More...

__STATIC_INLINE void	LL_LPUART_DisableDirectionRx (USART_TypeDef *LPUARTx)
	Receiver Disable CR1 RE LL_LPUART_DisableDirectionRx. More...

__STATIC_INLINE void	LL_LPUART_EnableDirectionTx (USART_TypeDef *LPUARTx)
	Transmitter Enable CR1 TE LL_LPUART_EnableDirectionTx. More...

__STATIC_INLINE void	LL_LPUART_DisableDirectionTx (USART_TypeDef *LPUARTx)
	Transmitter Disable CR1 TE LL_LPUART_DisableDirectionTx. More...

__STATIC_INLINE void	LL_LPUART_SetTransferDirection (USART_TypeDef *LPUARTx, uint32_t TransferDirection)
	Configure simultaneously enabled/disabled states of Transmitter and Receiver CR1 RE LL_LPUART_SetTransferDirection CR1 TE LL_LPUART_SetTransferDirection. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetTransferDirection (USART_TypeDef *LPUARTx)
	Return enabled/disabled states of Transmitter and Receiver CR1 RE LL_LPUART_GetTransferDirection CR1 TE LL_LPUART_GetTransferDirection. More...

__STATIC_INLINE void	LL_LPUART_SetParity (USART_TypeDef *LPUARTx, uint32_t Parity)
	Configure Parity (enabled/disabled and parity mode if enabled) More...

__STATIC_INLINE uint32_t	LL_LPUART_GetParity (USART_TypeDef *LPUARTx)
	Return Parity configuration (enabled/disabled and parity mode if enabled) CR1 PS LL_LPUART_GetParity CR1 PCE LL_LPUART_GetParity. More...

__STATIC_INLINE void	LL_LPUART_SetWakeUpMethod (USART_TypeDef *LPUARTx, uint32_t Method)
	Set Receiver Wake Up method from Mute mode. CR1 WAKE LL_LPUART_SetWakeUpMethod. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetWakeUpMethod (USART_TypeDef *LPUARTx)
	Return Receiver Wake Up method from Mute mode CR1 WAKE LL_LPUART_GetWakeUpMethod. More...

__STATIC_INLINE void	LL_LPUART_SetDataWidth (USART_TypeDef *LPUARTx, uint32_t DataWidth)
	Set Word length (nb of data bits, excluding start and stop bits) CR1 M LL_LPUART_SetDataWidth. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetDataWidth (USART_TypeDef *LPUARTx)
	Return Word length (i.e. nb of data bits, excluding start and stop bits) CR1 M LL_LPUART_GetDataWidth. More...

__STATIC_INLINE void	LL_LPUART_EnableMuteMode (USART_TypeDef *LPUARTx)
	Allow switch between Mute Mode and Active mode CR1 MME LL_LPUART_EnableMuteMode. More...

__STATIC_INLINE void	LL_LPUART_DisableMuteMode (USART_TypeDef *LPUARTx)
	Prevent Mute Mode use. Set Receiver in active mode permanently. CR1 MME LL_LPUART_DisableMuteMode. More...

__STATIC_INLINE uint32_t	LL_LPUART_IsEnabledMuteMode (USART_TypeDef *LPUARTx)
	Indicate if switch between Mute Mode and Active mode is allowed CR1 MME LL_LPUART_IsEnabledMuteMode. More...

__STATIC_INLINE void	LL_LPUART_SetPrescaler (USART_TypeDef *LPUARTx, uint32_t PrescalerValue)
	Configure Clock source prescaler for baudrate generator and oversampling PRESC PRESCALER LL_LPUART_SetPrescaler. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetPrescaler (USART_TypeDef *LPUARTx)
	Retrieve the Clock source prescaler for baudrate generator and oversampling PRESC PRESCALER LL_LPUART_GetPrescaler. More...

__STATIC_INLINE void	LL_LPUART_SetStopBitsLength (USART_TypeDef *LPUARTx, uint32_t StopBits)
	Set the length of the stop bits CR2 STOP LL_LPUART_SetStopBitsLength. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetStopBitsLength (USART_TypeDef *LPUARTx)
	Retrieve the length of the stop bits CR2 STOP LL_LPUART_GetStopBitsLength. More...

__STATIC_INLINE void	LL_LPUART_ConfigCharacter (USART_TypeDef *LPUARTx, uint32_t DataWidth, uint32_t Parity, uint32_t StopBits)
	Configure Character frame format (Datawidth, Parity control, Stop Bits) More...

__STATIC_INLINE void	LL_LPUART_SetTXRXSwap (USART_TypeDef *LPUARTx, uint32_t SwapConfig)
	Configure TX/RX pins swapping setting. CR2 SWAP LL_LPUART_SetTXRXSwap. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetTXRXSwap (USART_TypeDef *LPUARTx)
	Retrieve TX/RX pins swapping configuration. CR2 SWAP LL_LPUART_GetTXRXSwap. More...

__STATIC_INLINE void	LL_LPUART_SetRXPinLevel (USART_TypeDef *LPUARTx, uint32_t PinInvMethod)
	Configure RX pin active level logic CR2 RXINV LL_LPUART_SetRXPinLevel. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetRXPinLevel (USART_TypeDef *LPUARTx)
	Retrieve RX pin active level logic configuration CR2 RXINV LL_LPUART_GetRXPinLevel. More...

__STATIC_INLINE void	LL_LPUART_SetTXPinLevel (USART_TypeDef *LPUARTx, uint32_t PinInvMethod)
	Configure TX pin active level logic CR2 TXINV LL_LPUART_SetTXPinLevel. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetTXPinLevel (USART_TypeDef *LPUARTx)
	Retrieve TX pin active level logic configuration CR2 TXINV LL_LPUART_GetTXPinLevel. More...

__STATIC_INLINE void	LL_LPUART_SetBinaryDataLogic (USART_TypeDef *LPUARTx, uint32_t DataLogic)
	Configure Binary data logic. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetBinaryDataLogic (USART_TypeDef *LPUARTx)
	Retrieve Binary data configuration CR2 DATAINV LL_LPUART_GetBinaryDataLogic. More...

__STATIC_INLINE void	LL_LPUART_SetTransferBitOrder (USART_TypeDef *LPUARTx, uint32_t BitOrder)
	Configure transfer bit order (either Less or Most Significant Bit First) More...

__STATIC_INLINE uint32_t	LL_LPUART_GetTransferBitOrder (USART_TypeDef *LPUARTx)
	Return transfer bit order (either Less or Most Significant Bit First) More...

__STATIC_INLINE void	LL_LPUART_ConfigNodeAddress (USART_TypeDef *LPUARTx, uint32_t AddressLen, uint32_t NodeAddress)
	Set Address of the LPUART node. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetNodeAddress (USART_TypeDef *LPUARTx)
	Return 8 bit Address of the LPUART node as set in ADD field of CR2. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetNodeAddressLen (USART_TypeDef *LPUARTx)
	Return Length of Node Address used in Address Detection mode (7-bit or 4-bit) CR2 ADDM7 LL_LPUART_GetNodeAddressLen. More...

__STATIC_INLINE void	LL_LPUART_EnableRTSHWFlowCtrl (USART_TypeDef *LPUARTx)
	Enable RTS HW Flow Control CR3 RTSE LL_LPUART_EnableRTSHWFlowCtrl. More...

__STATIC_INLINE void	LL_LPUART_DisableRTSHWFlowCtrl (USART_TypeDef *LPUARTx)
	Disable RTS HW Flow Control CR3 RTSE LL_LPUART_DisableRTSHWFlowCtrl. More...

__STATIC_INLINE void	LL_LPUART_EnableCTSHWFlowCtrl (USART_TypeDef *LPUARTx)
	Enable CTS HW Flow Control CR3 CTSE LL_LPUART_EnableCTSHWFlowCtrl. More...

__STATIC_INLINE void	LL_LPUART_DisableCTSHWFlowCtrl (USART_TypeDef *LPUARTx)
	Disable CTS HW Flow Control CR3 CTSE LL_LPUART_DisableCTSHWFlowCtrl. More...

__STATIC_INLINE void	LL_LPUART_SetHWFlowCtrl (USART_TypeDef *LPUARTx, uint32_t HardwareFlowControl)
	Configure HW Flow Control mode (both CTS and RTS) CR3 RTSE LL_LPUART_SetHWFlowCtrl CR3 CTSE LL_LPUART_SetHWFlowCtrl. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetHWFlowCtrl (USART_TypeDef *LPUARTx)
	Return HW Flow Control configuration (both CTS and RTS) CR3 RTSE LL_LPUART_GetHWFlowCtrl CR3 CTSE LL_LPUART_GetHWFlowCtrl. More...

__STATIC_INLINE void	LL_LPUART_EnableOverrunDetect (USART_TypeDef *LPUARTx)
	Enable Overrun detection CR3 OVRDIS LL_LPUART_EnableOverrunDetect. More...

__STATIC_INLINE void	LL_LPUART_DisableOverrunDetect (USART_TypeDef *LPUARTx)
	Disable Overrun detection CR3 OVRDIS LL_LPUART_DisableOverrunDetect. More...

__STATIC_INLINE uint32_t	LL_LPUART_IsEnabledOverrunDetect (USART_TypeDef *LPUARTx)
	Indicate if Overrun detection is enabled CR3 OVRDIS LL_LPUART_IsEnabledOverrunDetect. More...

__STATIC_INLINE void	LL_LPUART_SetWKUPType (USART_TypeDef *LPUARTx, uint32_t Type)
	Select event type for Wake UP Interrupt Flag (WUS[1:0] bits) CR3 WUS LL_LPUART_SetWKUPType. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetWKUPType (USART_TypeDef *LPUARTx)
	Return event type for Wake UP Interrupt Flag (WUS[1:0] bits) CR3 WUS LL_LPUART_GetWKUPType. More...

__STATIC_INLINE void	LL_LPUART_SetBaudRate (USART_TypeDef LPUARTx, uint32_t PeriphClk, uint32_t PrescalerValue, uint32_t BaudRate) __STATIC_INLINE void LL_LPUART_SetBaudRate(USART_TypeDef LPUARTx
	Configure LPUART BRR register for achieving expected Baud Rate value. More...

__STATIC_INLINE uint32_t	LL_LPUART_GetBaudRate (USART_TypeDef LPUARTx, uint32_t PeriphClk, uint32_t PrescalerValue) __STATIC_INLINE uint32_t LL_LPUART_GetBaudRate(USART_TypeDef LPUARTx
	Return current Baud Rate value, according to LPUARTDIV present in BRR register (full BRR content), and to used Peripheral Clock values. More...

	if (lpuartdiv >=LPUART_BRR_MIN_VALUE)

	return (brrresult)

Variables
__STATIC_INLINE void uint32_t	PeriphClk

__STATIC_INLINE void uint32_t uint32_t	BaudRate

LPUARTx	BRR = __LL_LPUART_DIV(PeriphClk, BaudRate)

register uint32_t	brrresult

register uint32_t	periphclkpresc = (uint32_t)(PeriphClk / (LPUART_PRESCALER_TAB[(uint16_t)PrescalerValue]))

	lpuartdiv = LPUARTx->BRR & LPUART_BRR_MASK

	else

Detailed Description

Function Documentation

◆ if()

if ( lpuartdiv >= LPUART_BRR_MIN_VALUE )

Definition at line 1479 of file stm32l4xx_ll_lpuart.h.

   {
 #if defined(USART_PRESC_PRESCALER)
     brrresult = (uint32_t)(((uint64_t)(periphclkpresc) * LPUART_LPUARTDIV_FREQ_MUL) / lpuartdiv);
 #else
     brrresult = (uint32_t)(((uint64_t)(PeriphClk) * LPUART_LPUARTDIV_FREQ_MUL) / lpuartdiv);
 #endif /* USART_PRESC_PRESCALER */
   }

◆ LL_LPUART_ConfigCharacter()

__STATIC_INLINE void LL_LPUART_ConfigCharacter	(	USART_TypeDef *	LPUARTx,
		uint32_t	DataWidth,
		uint32_t	Parity,
		uint32_t	StopBits
	)

Configure Character frame format (Datawidth, Parity control, Stop Bits)

Note

Call of this function is equivalent to following function call sequence :

Data Width configuration using LL_LPUART_SetDataWidth() function
Parity Control and mode configuration using LL_LPUART_SetParity() function
Stop bits configuration using LL_LPUART_SetStopBitsLength() function CR1 PS LL_LPUART_ConfigCharacter
CR1 PCE LL_LPUART_ConfigCharacter
CR1 M LL_LPUART_ConfigCharacter
CR2 STOP LL_LPUART_ConfigCharacter

Parameters

LPUARTx	LPUART Instance
DataWidth	This parameter can be one of the following values: LL_LPUART_DATAWIDTH_7B LL_LPUART_DATAWIDTH_8B LL_LPUART_DATAWIDTH_9B
Parity	This parameter can be one of the following values: LL_LPUART_PARITY_NONE LL_LPUART_PARITY_EVEN LL_LPUART_PARITY_ODD
StopBits	This parameter can be one of the following values: LL_LPUART_STOPBITS_1 LL_LPUART_STOPBITS_2

Return values

None

Definition at line 1051 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR1, USART_CR1_PS | USART_CR1_PCE | USART_CR1_M, Parity | DataWidth);
   MODIFY_REG(LPUARTx->CR2, USART_CR2_STOP, StopBits);
 }

◆ LL_LPUART_ConfigFIFOsThreshold()

__STATIC_INLINE void LL_LPUART_ConfigFIFOsThreshold	(	USART_TypeDef *	LPUARTx,
		uint32_t	TXThreshold,
		uint32_t	RXThreshold
	)

Configure TX and RX FIFOs Threshold CR3 TXFTCFG LL_LPUART_ConfigFIFOsThreshold
CR3 RXFTCFG LL_LPUART_ConfigFIFOsThreshold.

Parameters

LPUARTx	LPUART Instance
TXThreshold	This parameter can be one of the following values: LL_LPUART_FIFOTHRESHOLD_1_8 LL_LPUART_FIFOTHRESHOLD_1_4 LL_LPUART_FIFOTHRESHOLD_1_2 LL_LPUART_FIFOTHRESHOLD_3_4 LL_LPUART_FIFOTHRESHOLD_7_8 LL_LPUART_FIFOTHRESHOLD_8_8
RXThreshold	This parameter can be one of the following values: LL_LPUART_FIFOTHRESHOLD_1_8 LL_LPUART_FIFOTHRESHOLD_1_4 LL_LPUART_FIFOTHRESHOLD_1_2 LL_LPUART_FIFOTHRESHOLD_3_4 LL_LPUART_FIFOTHRESHOLD_7_8 LL_LPUART_FIFOTHRESHOLD_8_8

Return values

None

Definition at line 670 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR3, USART_CR3_TXFTCFG | USART_CR3_RXFTCFG, (TXThreshold << USART_CR3_TXFTCFG_Pos) | (RXThreshold << USART_CR3_RXFTCFG_Pos));
 }

◆ LL_LPUART_ConfigNodeAddress()

__STATIC_INLINE void LL_LPUART_ConfigNodeAddress	(	USART_TypeDef *	LPUARTx,
		uint32_t	AddressLen,
		uint32_t	NodeAddress
	)

Set Address of the LPUART node.

Note: This is used in multiprocessor communication during Mute mode or Stop mode, for wake up with address mark detection.; 4bits address node is used when 4-bit Address Detection is selected in ADDM7. (b7-b4 should be set to 0) 8bits address node is used when 7-bit Address Detection is selected in ADDM7. (This is used in multiprocessor communication during Mute mode or Stop mode, for wake up with 7-bit address mark detection. The MSB of the character sent by the transmitter should be equal to 1. It may also be used for character detection during normal reception, Mute mode inactive (for example, end of block detection in ModBus protocol). In this case, the whole received character (8-bit) is compared to the ADD[7:0] value and CMF flag is set on match) CR2 ADD LL_LPUART_ConfigNodeAddress
CR2 ADDM7 LL_LPUART_ConfigNodeAddress

Parameters

LPUARTx	LPUART Instance
AddressLen	This parameter can be one of the following values: LL_LPUART_ADDRESS_DETECT_4B LL_LPUART_ADDRESS_DETECT_7B
NodeAddress	4 or 7 bit Address of the LPUART node.

Return values

None

Definition at line 1223 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR2, USART_CR2_ADD | USART_CR2_ADDM7,
              (uint32_t)(AddressLen | (NodeAddress << USART_CR2_ADD_Pos)));
 }

◆ LL_LPUART_Disable()

__STATIC_INLINE void LL_LPUART_Disable ( USART_TypeDef * LPUARTx )

LPUART Disable.

Note: When LPUART is disabled, LPUART prescalers and outputs are stopped immediately, and current operations are discarded. The configuration of the LPUART is kept, but all the status flags, in the LPUARTx_ISR are set to their default values.; In order to go into low-power mode without generating errors on the line, the TE bit must be reset before and the software must wait for the TC bit in the LPUART_ISR to be set before resetting the UE bit. The DMA requests are also reset when UE = 0 so the DMA channel must be disabled before resetting the UE bit. CR1 UE LL_LPUART_Disable

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 529 of file stm32l4xx_ll_lpuart.h.

 {
   CLEAR_BIT(LPUARTx->CR1, USART_CR1_UE);
 }

◆ LL_LPUART_DisableClockInStopMode()

__STATIC_INLINE void LL_LPUART_DisableClockInStopMode ( USART_TypeDef * LPUARTx )

LPUART clock disabled in STOP Mode.

Note: When this function is called, LPUART Clock is disabled while in STOP mode CR3 UCESM LL_LPUART_DisableClockInStopMode

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 733 of file stm32l4xx_ll_lpuart.h.

 {
   CLEAR_BIT(LPUARTx->CR3, USART_CR3_UCESM);
 }

◆ LL_LPUART_DisableCTSHWFlowCtrl()

__STATIC_INLINE void LL_LPUART_DisableCTSHWFlowCtrl ( USART_TypeDef * LPUARTx )

Disable CTS HW Flow Control CR3 CTSE LL_LPUART_DisableCTSHWFlowCtrl.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 1296 of file stm32l4xx_ll_lpuart.h.

 {
   CLEAR_BIT(LPUARTx->CR3, USART_CR3_CTSE);
 }

◆ LL_LPUART_DisableDirectionRx()

__STATIC_INLINE void LL_LPUART_DisableDirectionRx ( USART_TypeDef * LPUARTx )

Receiver Disable CR1 RE LL_LPUART_DisableDirectionRx.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 767 of file stm32l4xx_ll_lpuart.h.

 {
   CLEAR_BIT(LPUARTx->CR1, USART_CR1_RE);
 }

◆ LL_LPUART_DisableDirectionTx()

__STATIC_INLINE void LL_LPUART_DisableDirectionTx ( USART_TypeDef * LPUARTx )

Transmitter Disable CR1 TE LL_LPUART_DisableDirectionTx.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 789 of file stm32l4xx_ll_lpuart.h.

 {
   CLEAR_BIT(LPUARTx->CR1, USART_CR1_TE);
 }

◆ LL_LPUART_DisableFIFO()

__STATIC_INLINE void LL_LPUART_DisableFIFO ( USART_TypeDef * LPUARTx )

FIFO Mode Disable CR1 FIFOEN LL_LPUART_DisableFIFO.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 563 of file stm32l4xx_ll_lpuart.h.

 {
   CLEAR_BIT(LPUARTx->CR1, USART_CR1_FIFOEN);
 }

◆ LL_LPUART_DisableInStopMode()

__STATIC_INLINE void LL_LPUART_DisableInStopMode ( USART_TypeDef * LPUARTx )

LPUART disabled in STOP Mode.

Note: When this function is disabled, LPUART is not able to wake up the MCU from Stop mode CR1 UESM LL_LPUART_DisableInStopMode

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 696 of file stm32l4xx_ll_lpuart.h.

 {
   CLEAR_BIT(LPUARTx->CR1, USART_CR1_UESM);
 }

◆ LL_LPUART_DisableMuteMode()

__STATIC_INLINE void LL_LPUART_DisableMuteMode ( USART_TypeDef * LPUARTx )

Prevent Mute Mode use. Set Receiver in active mode permanently. CR1 MME LL_LPUART_DisableMuteMode.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 935 of file stm32l4xx_ll_lpuart.h.

 {
   CLEAR_BIT(LPUARTx->CR1, USART_CR1_MME);
 }

◆ LL_LPUART_DisableOverrunDetect()

__STATIC_INLINE void LL_LPUART_DisableOverrunDetect ( USART_TypeDef * LPUARTx )

Disable Overrun detection CR3 OVRDIS LL_LPUART_DisableOverrunDetect.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 1351 of file stm32l4xx_ll_lpuart.h.

 {
   SET_BIT(LPUARTx->CR3, USART_CR3_OVRDIS);
 }

◆ LL_LPUART_DisableRTSHWFlowCtrl()

__STATIC_INLINE void LL_LPUART_DisableRTSHWFlowCtrl ( USART_TypeDef * LPUARTx )

Disable RTS HW Flow Control CR3 RTSE LL_LPUART_DisableRTSHWFlowCtrl.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 1274 of file stm32l4xx_ll_lpuart.h.

 {
   CLEAR_BIT(LPUARTx->CR3, USART_CR3_RTSE);
 }

◆ LL_LPUART_Enable()

__STATIC_INLINE void LL_LPUART_Enable ( USART_TypeDef * LPUARTx )

LPUART Enable CR1 UE LL_LPUART_Enable.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 510 of file stm32l4xx_ll_lpuart.h.

 {
   SET_BIT(LPUARTx->CR1, USART_CR1_UE);
 }

◆ LL_LPUART_EnableClockInStopMode()

__STATIC_INLINE void LL_LPUART_EnableClockInStopMode ( USART_TypeDef * LPUARTx )

LPUART Clock enabled in STOP Mode.

Note: When this function is called, LPUART Clock is enabled while in STOP mode CR3 UCESM LL_LPUART_EnableClockInStopMode

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 721 of file stm32l4xx_ll_lpuart.h.

 {
   SET_BIT(LPUARTx->CR3, USART_CR3_UCESM);
 }

◆ LL_LPUART_EnableCTSHWFlowCtrl()

__STATIC_INLINE void LL_LPUART_EnableCTSHWFlowCtrl ( USART_TypeDef * LPUARTx )

Enable CTS HW Flow Control CR3 CTSE LL_LPUART_EnableCTSHWFlowCtrl.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 1285 of file stm32l4xx_ll_lpuart.h.

 {
   SET_BIT(LPUARTx->CR3, USART_CR3_CTSE);
 }

◆ LL_LPUART_EnableDirectionRx()

__STATIC_INLINE void LL_LPUART_EnableDirectionRx ( USART_TypeDef * LPUARTx )

Receiver Enable (Receiver is enabled and begins searching for a start bit) CR1 RE LL_LPUART_EnableDirectionRx.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 756 of file stm32l4xx_ll_lpuart.h.

 {
   SET_BIT(LPUARTx->CR1, USART_CR1_RE);
 }

◆ LL_LPUART_EnableDirectionTx()

__STATIC_INLINE void LL_LPUART_EnableDirectionTx ( USART_TypeDef * LPUARTx )

Transmitter Enable CR1 TE LL_LPUART_EnableDirectionTx.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 778 of file stm32l4xx_ll_lpuart.h.

 {
   SET_BIT(LPUARTx->CR1, USART_CR1_TE);
 }

◆ LL_LPUART_EnableFIFO()

__STATIC_INLINE void LL_LPUART_EnableFIFO ( USART_TypeDef * LPUARTx )

FIFO Mode Enable CR1 FIFOEN LL_LPUART_EnableFIFO.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 552 of file stm32l4xx_ll_lpuart.h.

 {
   SET_BIT(LPUARTx->CR1, USART_CR1_FIFOEN);
 }

◆ LL_LPUART_EnableInStopMode()

__STATIC_INLINE void LL_LPUART_EnableInStopMode ( USART_TypeDef * LPUARTx )

LPUART enabled in STOP Mode.

Note: When this function is enabled, LPUART is able to wake up the MCU from Stop mode, provided that LPUART clock selection is HSI or LSE in RCC. CR1 UESM LL_LPUART_EnableInStopMode

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 684 of file stm32l4xx_ll_lpuart.h.

 {
   SET_BIT(LPUARTx->CR1, USART_CR1_UESM);
 }

◆ LL_LPUART_EnableMuteMode()

__STATIC_INLINE void LL_LPUART_EnableMuteMode ( USART_TypeDef * LPUARTx )

Allow switch between Mute Mode and Active mode CR1 MME LL_LPUART_EnableMuteMode.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 924 of file stm32l4xx_ll_lpuart.h.

 {
   SET_BIT(LPUARTx->CR1, USART_CR1_MME);
 }

◆ LL_LPUART_EnableOverrunDetect()

__STATIC_INLINE void LL_LPUART_EnableOverrunDetect ( USART_TypeDef * LPUARTx )

Enable Overrun detection CR3 OVRDIS LL_LPUART_EnableOverrunDetect.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 1340 of file stm32l4xx_ll_lpuart.h.

 {
   CLEAR_BIT(LPUARTx->CR3, USART_CR3_OVRDIS);
 }

◆ LL_LPUART_EnableRTSHWFlowCtrl()

__STATIC_INLINE void LL_LPUART_EnableRTSHWFlowCtrl ( USART_TypeDef * LPUARTx )

Enable RTS HW Flow Control CR3 RTSE LL_LPUART_EnableRTSHWFlowCtrl.

Parameters

LPUARTx LPUART Instance

Return values

None

Definition at line 1263 of file stm32l4xx_ll_lpuart.h.

 {
   SET_BIT(LPUARTx->CR3, USART_CR3_RTSE);
 }

◆ LL_LPUART_GetBaudRate()

__STATIC_INLINE uint32_t LL_LPUART_GetBaudRate	(	USART_TypeDef *	LPUARTx,
		uint32_t	PeriphClk,
		uint32_t	PrescalerValue
	)

Return current Baud Rate value, according to LPUARTDIV present in BRR register (full BRR content), and to used Peripheral Clock values.

Note: In case of non-initialized or invalid value stored in BRR register, value 0 will be returned. BRR BRR LL_LPUART_GetBaudRate

Parameters

LPUARTx	LPUART Instance
PeriphClk	Peripheral Clock

Return values

Baud Rate

◆ LL_LPUART_GetBinaryDataLogic()

__STATIC_INLINE uint32_t LL_LPUART_GetBinaryDataLogic ( USART_TypeDef * LPUARTx )

Retrieve Binary data configuration CR2 DATAINV LL_LPUART_GetBinaryDataLogic.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_BINARY_LOGIC_POSITIVE
LL_LPUART_BINARY_LOGIC_NEGATIVE

Definition at line 1164 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_DATAINV));
 }

◆ LL_LPUART_GetDataWidth()

__STATIC_INLINE uint32_t LL_LPUART_GetDataWidth ( USART_TypeDef * LPUARTx )

Return Word length (i.e. nb of data bits, excluding start and stop bits) CR1 M LL_LPUART_GetDataWidth.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_DATAWIDTH_7B
LL_LPUART_DATAWIDTH_8B
LL_LPUART_DATAWIDTH_9B

Definition at line 913 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR1, USART_CR1_M));
 }

◆ LL_LPUART_GetHWFlowCtrl()

__STATIC_INLINE uint32_t LL_LPUART_GetHWFlowCtrl ( USART_TypeDef * LPUARTx )

Return HW Flow Control configuration (both CTS and RTS) CR3 RTSE LL_LPUART_GetHWFlowCtrl
CR3 CTSE LL_LPUART_GetHWFlowCtrl.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_HWCONTROL_NONE
LL_LPUART_HWCONTROL_RTS
LL_LPUART_HWCONTROL_CTS
LL_LPUART_HWCONTROL_RTS_CTS

Definition at line 1329 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR3, USART_CR3_RTSE | USART_CR3_CTSE));
 }

◆ LL_LPUART_GetNodeAddress()

__STATIC_INLINE uint32_t LL_LPUART_GetNodeAddress ( USART_TypeDef * LPUARTx )

Return 8 bit Address of the LPUART node as set in ADD field of CR2.

Note: If 4-bit Address Detection is selected in ADDM7, only 4bits (b3-b0) of returned value are relevant (b31-b4 are not relevant) If 7-bit Address Detection is selected in ADDM7, only 8bits (b7-b0) of returned value are relevant (b31-b8 are not relevant) CR2 ADD LL_LPUART_GetNodeAddress

Parameters

LPUARTx LPUART Instance

Return values

Address of the LPUART node (Value between Min_Data=0 and Max_Data=255)

Definition at line 1239 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_ADD) >> USART_CR2_ADD_Pos);
 }

◆ LL_LPUART_GetNodeAddressLen()

__STATIC_INLINE uint32_t LL_LPUART_GetNodeAddressLen ( USART_TypeDef * LPUARTx )

Return Length of Node Address used in Address Detection mode (7-bit or 4-bit) CR2 ADDM7 LL_LPUART_GetNodeAddressLen.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_ADDRESS_DETECT_4B
LL_LPUART_ADDRESS_DETECT_7B

Definition at line 1252 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_ADDM7));
 }

◆ LL_LPUART_GetParity()

__STATIC_INLINE uint32_t LL_LPUART_GetParity ( USART_TypeDef * LPUARTx )

Return Parity configuration (enabled/disabled and parity mode if enabled) CR1 PS LL_LPUART_GetParity
CR1 PCE LL_LPUART_GetParity.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_PARITY_NONE
LL_LPUART_PARITY_EVEN
LL_LPUART_PARITY_ODD

Definition at line 857 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR1, USART_CR1_PS | USART_CR1_PCE));
 }

◆ LL_LPUART_GetPrescaler()

__STATIC_INLINE uint32_t LL_LPUART_GetPrescaler ( USART_TypeDef * LPUARTx )

Retrieve the Clock source prescaler for baudrate generator and oversampling PRESC PRESCALER LL_LPUART_GetPrescaler.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_PRESCALER_DIV1
LL_LPUART_PRESCALER_DIV2
LL_LPUART_PRESCALER_DIV4
LL_LPUART_PRESCALER_DIV6
LL_LPUART_PRESCALER_DIV8
LL_LPUART_PRESCALER_DIV10
LL_LPUART_PRESCALER_DIV12
LL_LPUART_PRESCALER_DIV16
LL_LPUART_PRESCALER_DIV32
LL_LPUART_PRESCALER_DIV64
LL_LPUART_PRESCALER_DIV128
LL_LPUART_PRESCALER_DIV256

Definition at line 994 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->PRESC, USART_PRESC_PRESCALER));
 }

◆ LL_LPUART_GetRXFIFOThreshold()

__STATIC_INLINE uint32_t LL_LPUART_GetRXFIFOThreshold ( USART_TypeDef * LPUARTx )

Return RX FIFO Threshold Configuration CR3 RXFTCFG LL_LPUART_GetRXFIFOThreshold.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_FIFOTHRESHOLD_1_8
LL_LPUART_FIFOTHRESHOLD_1_4
LL_LPUART_FIFOTHRESHOLD_1_2
LL_LPUART_FIFOTHRESHOLD_3_4
LL_LPUART_FIFOTHRESHOLD_7_8
LL_LPUART_FIFOTHRESHOLD_8_8

Definition at line 644 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR3, USART_CR3_RXFTCFG) >> USART_CR3_RXFTCFG_Pos);
 }

◆ LL_LPUART_GetRXPinLevel()

__STATIC_INLINE uint32_t LL_LPUART_GetRXPinLevel ( USART_TypeDef * LPUARTx )

Retrieve RX pin active level logic configuration CR2 RXINV LL_LPUART_GetRXPinLevel.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_RXPIN_LEVEL_STANDARD
LL_LPUART_RXPIN_LEVEL_INVERTED

Definition at line 1107 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_RXINV));
 }

◆ LL_LPUART_GetStopBitsLength()

__STATIC_INLINE uint32_t LL_LPUART_GetStopBitsLength ( USART_TypeDef * LPUARTx )

Retrieve the length of the stop bits CR2 STOP LL_LPUART_GetStopBitsLength.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_STOPBITS_1
LL_LPUART_STOPBITS_2

Definition at line 1022 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_STOP));
 }

◆ LL_LPUART_GetTransferBitOrder()

__STATIC_INLINE uint32_t LL_LPUART_GetTransferBitOrder ( USART_TypeDef * LPUARTx )

Return transfer bit order (either Less or Most Significant Bit First)

Note: MSB First means data is transmitted/received with the MSB first, following the start bit. LSB First means data is transmitted/received with data bit 0 first, following the start bit. CR2 MSBFIRST LL_LPUART_GetTransferBitOrder

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_BITORDER_LSBFIRST
LL_LPUART_BITORDER_MSBFIRST

Definition at line 1195 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_MSBFIRST));
 }

◆ LL_LPUART_GetTransferDirection()

__STATIC_INLINE uint32_t LL_LPUART_GetTransferDirection ( USART_TypeDef * LPUARTx )

Return enabled/disabled states of Transmitter and Receiver CR1 RE LL_LPUART_GetTransferDirection
CR1 TE LL_LPUART_GetTransferDirection.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_DIRECTION_NONE
LL_LPUART_DIRECTION_RX
LL_LPUART_DIRECTION_TX
LL_LPUART_DIRECTION_TX_RX

Definition at line 823 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR1, USART_CR1_RE | USART_CR1_TE));
 }

◆ LL_LPUART_GetTXFIFOThreshold()

__STATIC_INLINE uint32_t LL_LPUART_GetTXFIFOThreshold ( USART_TypeDef * LPUARTx )

Return TX FIFO Threshold Configuration CR3 TXFTCFG LL_LPUART_GetTXFIFOThreshold.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_FIFOTHRESHOLD_1_8
LL_LPUART_FIFOTHRESHOLD_1_4
LL_LPUART_FIFOTHRESHOLD_1_2
LL_LPUART_FIFOTHRESHOLD_3_4
LL_LPUART_FIFOTHRESHOLD_7_8
LL_LPUART_FIFOTHRESHOLD_8_8

Definition at line 609 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR3, USART_CR3_TXFTCFG) >> USART_CR3_TXFTCFG_Pos);
 }

◆ LL_LPUART_GetTXPinLevel()

__STATIC_INLINE uint32_t LL_LPUART_GetTXPinLevel ( USART_TypeDef * LPUARTx )

Retrieve TX pin active level logic configuration CR2 TXINV LL_LPUART_GetTXPinLevel.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_TXPIN_LEVEL_STANDARD
LL_LPUART_TXPIN_LEVEL_INVERTED

Definition at line 1134 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_TXINV));
 }

◆ LL_LPUART_GetTXRXSwap()

__STATIC_INLINE uint32_t LL_LPUART_GetTXRXSwap ( USART_TypeDef * LPUARTx )

Retrieve TX/RX pins swapping configuration. CR2 SWAP LL_LPUART_GetTXRXSwap.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_TXRX_STANDARD
LL_LPUART_TXRX_SWAPPED

Definition at line 1080 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR2, USART_CR2_SWAP));
 }

◆ LL_LPUART_GetWakeUpMethod()

__STATIC_INLINE uint32_t LL_LPUART_GetWakeUpMethod ( USART_TypeDef * LPUARTx )

Return Receiver Wake Up method from Mute mode CR1 WAKE LL_LPUART_GetWakeUpMethod.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_WAKEUP_IDLELINE
LL_LPUART_WAKEUP_ADDRESSMARK

Definition at line 884 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR1, USART_CR1_WAKE));
 }

◆ LL_LPUART_GetWKUPType()

__STATIC_INLINE uint32_t LL_LPUART_GetWKUPType ( USART_TypeDef * LPUARTx )

Return event type for Wake UP Interrupt Flag (WUS[1:0] bits) CR3 WUS LL_LPUART_GetWKUPType.

Parameters

LPUARTx LPUART Instance

Return values

Returned

value can be one of the following values:

LL_LPUART_WAKEUP_ON_ADDRESS
LL_LPUART_WAKEUP_ON_STARTBIT
LL_LPUART_WAKEUP_ON_RXNE

Definition at line 1391 of file stm32l4xx_ll_lpuart.h.

 {
   return (uint32_t)(READ_BIT(LPUARTx->CR3, USART_CR3_WUS));
 }

◆ LL_LPUART_IsClockEnabledInStopMode()

__STATIC_INLINE uint32_t LL_LPUART_IsClockEnabledInStopMode ( USART_TypeDef * LPUARTx )

Indicate if LPUART clock is enabled in STOP Mode CR3 UCESM LL_LPUART_IsClockEnabledInStopMode.

Parameters

LPUARTx LPUART Instance

Return values

State of bit (1 or 0).

Definition at line 744 of file stm32l4xx_ll_lpuart.h.

 {
   return ((READ_BIT(LPUARTx->CR3, USART_CR3_UCESM) == (USART_CR3_UCESM)) ? 1UL : 0UL);
 }

◆ LL_LPUART_IsEnabled()

__STATIC_INLINE uint32_t LL_LPUART_IsEnabled ( USART_TypeDef * LPUARTx )

Indicate if LPUART is enabled CR1 UE LL_LPUART_IsEnabled.

Parameters

LPUARTx LPUART Instance

Return values

State of bit (1 or 0).

Definition at line 540 of file stm32l4xx_ll_lpuart.h.

 {
   return ((READ_BIT(LPUARTx->CR1, USART_CR1_UE) == (USART_CR1_UE)) ? 1UL : 0UL);
 }

◆ LL_LPUART_IsEnabledFIFO()

__STATIC_INLINE uint32_t LL_LPUART_IsEnabledFIFO ( USART_TypeDef * LPUARTx )

Indicate if FIFO Mode is enabled CR1 FIFOEN LL_LPUART_IsEnabledFIFO.

Parameters

LPUARTx LPUART Instance

Return values

State of bit (1 or 0).

Definition at line 574 of file stm32l4xx_ll_lpuart.h.

 {
   return ((READ_BIT(LPUARTx->CR1, USART_CR1_FIFOEN) == (USART_CR1_FIFOEN)) ? 1UL : 0UL);
 }

◆ LL_LPUART_IsEnabledInStopMode()

__STATIC_INLINE uint32_t LL_LPUART_IsEnabledInStopMode ( USART_TypeDef * LPUARTx )

Indicate if LPUART is enabled in STOP Mode (able to wake up MCU from Stop mode or not) CR1 UESM LL_LPUART_IsEnabledInStopMode.

Parameters

LPUARTx LPUART Instance

Return values

State of bit (1 or 0).

Definition at line 708 of file stm32l4xx_ll_lpuart.h.

 {
   return ((READ_BIT(LPUARTx->CR1, USART_CR1_UESM) == (USART_CR1_UESM)) ? 1UL : 0UL);
 }

◆ LL_LPUART_IsEnabledMuteMode()

__STATIC_INLINE uint32_t LL_LPUART_IsEnabledMuteMode ( USART_TypeDef * LPUARTx )

Indicate if switch between Mute Mode and Active mode is allowed CR1 MME LL_LPUART_IsEnabledMuteMode.

Parameters

LPUARTx LPUART Instance

Return values

State of bit (1 or 0).

Definition at line 946 of file stm32l4xx_ll_lpuart.h.

 {
   return ((READ_BIT(LPUARTx->CR1, USART_CR1_MME) == (USART_CR1_MME)) ? 1UL : 0UL);
 }

◆ LL_LPUART_IsEnabledOverrunDetect()

__STATIC_INLINE uint32_t LL_LPUART_IsEnabledOverrunDetect ( USART_TypeDef * LPUARTx )

Indicate if Overrun detection is enabled CR3 OVRDIS LL_LPUART_IsEnabledOverrunDetect.

Parameters

LPUARTx LPUART Instance

Return values

State of bit (1 or 0).

Definition at line 1362 of file stm32l4xx_ll_lpuart.h.

 {
   return ((READ_BIT(LPUARTx->CR3, USART_CR3_OVRDIS) != USART_CR3_OVRDIS) ? 1UL : 0UL);
 }

◆ LL_LPUART_SetBaudRate()

__STATIC_INLINE void LL_LPUART_SetBaudRate	(	USART_TypeDef *	LPUARTx,
		uint32_t	PeriphClk,
		uint32_t	PrescalerValue,
		uint32_t	BaudRate
	)

Configure LPUART BRR register for achieving expected Baud Rate value.

Note: Compute and set LPUARTDIV value in BRR Register (full BRR content) according to used Peripheral Clock and expected Baud Rate values; Peripheral clock and Baud Rate values provided as function parameters should be valid (Baud rate value != 0).; Provided that LPUARTx_BRR must be > = 0x300 and LPUART_BRR is 20-bit, a care should be taken when generating high baud rates using high PeriphClk values. PeriphClk must be in the range [3 x BaudRate, 4096 x BaudRate]. BRR BRR LL_LPUART_SetBaudRate

Parameters

LPUARTx	LPUART Instance
PeriphClk	Peripheral Clock
BaudRate	Baud Rate

Return values

None

◆ LL_LPUART_SetBinaryDataLogic()

__STATIC_INLINE void LL_LPUART_SetBinaryDataLogic	(	USART_TypeDef *	LPUARTx,
		uint32_t	DataLogic
	)

Configure Binary data logic.

Note: Allow to define how Logical data from the data register are send/received : either in positive/direct logic (1=H, 0=L) or in negative/inverse logic (1=L, 0=H) CR2 DATAINV LL_LPUART_SetBinaryDataLogic

Parameters

LPUARTx	LPUART Instance
DataLogic	This parameter can be one of the following values: LL_LPUART_BINARY_LOGIC_POSITIVE LL_LPUART_BINARY_LOGIC_NEGATIVE

Return values

None

Definition at line 1151 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR2, USART_CR2_DATAINV, DataLogic);
 }

◆ LL_LPUART_SetDataWidth()

__STATIC_INLINE void LL_LPUART_SetDataWidth	(	USART_TypeDef *	LPUARTx,
		uint32_t	DataWidth
	)

Set Word length (nb of data bits, excluding start and stop bits) CR1 M LL_LPUART_SetDataWidth.

Parameters

LPUARTx	LPUART Instance
DataWidth	This parameter can be one of the following values: LL_LPUART_DATAWIDTH_7B LL_LPUART_DATAWIDTH_8B LL_LPUART_DATAWIDTH_9B

Return values

None

Definition at line 899 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR1, USART_CR1_M, DataWidth);
 }

◆ LL_LPUART_SetHWFlowCtrl()

__STATIC_INLINE void LL_LPUART_SetHWFlowCtrl	(	USART_TypeDef *	LPUARTx,
		uint32_t	HardwareFlowControl
	)

Configure HW Flow Control mode (both CTS and RTS) CR3 RTSE LL_LPUART_SetHWFlowCtrl
CR3 CTSE LL_LPUART_SetHWFlowCtrl.

Parameters

LPUARTx	LPUART Instance
HardwareFlowControl	This parameter can be one of the following values: LL_LPUART_HWCONTROL_NONE LL_LPUART_HWCONTROL_RTS LL_LPUART_HWCONTROL_CTS LL_LPUART_HWCONTROL_RTS_CTS

Return values

None

Definition at line 1313 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR3, USART_CR3_RTSE | USART_CR3_CTSE, HardwareFlowControl);
 }

◆ LL_LPUART_SetParity()

__STATIC_INLINE void LL_LPUART_SetParity	(	USART_TypeDef *	LPUARTx,
		uint32_t	Parity
	)

Configure Parity (enabled/disabled and parity mode if enabled)

Note: This function selects if hardware parity control (generation and detection) is enabled or disabled. When the parity control is enabled (Odd or Even), computed parity bit is inserted at the MSB position (depending on data width) and parity is checked on the received data. CR1 PS LL_LPUART_SetParity
CR1 PCE LL_LPUART_SetParity

Parameters

LPUARTx	LPUART Instance
Parity	This parameter can be one of the following values: LL_LPUART_PARITY_NONE LL_LPUART_PARITY_EVEN LL_LPUART_PARITY_ODD

Return values

None

Definition at line 842 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR1, USART_CR1_PS | USART_CR1_PCE, Parity);
 }

◆ LL_LPUART_SetPrescaler()

__STATIC_INLINE void LL_LPUART_SetPrescaler	(	USART_TypeDef *	LPUARTx,
		uint32_t	PrescalerValue
	)

Configure Clock source prescaler for baudrate generator and oversampling PRESC PRESCALER LL_LPUART_SetPrescaler.

Parameters

LPUARTx	LPUART Instance
PrescalerValue	This parameter can be one of the following values: LL_LPUART_PRESCALER_DIV1 LL_LPUART_PRESCALER_DIV2 LL_LPUART_PRESCALER_DIV4 LL_LPUART_PRESCALER_DIV6 LL_LPUART_PRESCALER_DIV8 LL_LPUART_PRESCALER_DIV10 LL_LPUART_PRESCALER_DIV12 LL_LPUART_PRESCALER_DIV16 LL_LPUART_PRESCALER_DIV32 LL_LPUART_PRESCALER_DIV64 LL_LPUART_PRESCALER_DIV128 LL_LPUART_PRESCALER_DIV256

Return values

None

Definition at line 971 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->PRESC, USART_PRESC_PRESCALER, (uint16_t)PrescalerValue);
 }

◆ LL_LPUART_SetRXFIFOThreshold()

__STATIC_INLINE void LL_LPUART_SetRXFIFOThreshold	(	USART_TypeDef *	LPUARTx,
		uint32_t	Threshold
	)

Configure RX FIFO Threshold CR3 RXFTCFG LL_LPUART_SetRXFIFOThreshold.

Parameters

LPUARTx	LPUART Instance
Threshold	This parameter can be one of the following values: LL_LPUART_FIFOTHRESHOLD_1_8 LL_LPUART_FIFOTHRESHOLD_1_4 LL_LPUART_FIFOTHRESHOLD_1_2 LL_LPUART_FIFOTHRESHOLD_3_4 LL_LPUART_FIFOTHRESHOLD_7_8 LL_LPUART_FIFOTHRESHOLD_8_8

Return values

None

Definition at line 627 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR3, USART_CR3_RXFTCFG, Threshold << USART_CR3_RXFTCFG_Pos);
 }

◆ LL_LPUART_SetRXPinLevel()

__STATIC_INLINE void LL_LPUART_SetRXPinLevel	(	USART_TypeDef *	LPUARTx,
		uint32_t	PinInvMethod
	)

Configure RX pin active level logic CR2 RXINV LL_LPUART_SetRXPinLevel.

Parameters

LPUARTx	LPUART Instance
PinInvMethod	This parameter can be one of the following values: LL_LPUART_RXPIN_LEVEL_STANDARD LL_LPUART_RXPIN_LEVEL_INVERTED

Return values

None

Definition at line 1094 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR2, USART_CR2_RXINV, PinInvMethod);
 }

◆ LL_LPUART_SetStopBitsLength()

__STATIC_INLINE void LL_LPUART_SetStopBitsLength	(	USART_TypeDef *	LPUARTx,
		uint32_t	StopBits
	)

Set the length of the stop bits CR2 STOP LL_LPUART_SetStopBitsLength.

Parameters

LPUARTx	LPUART Instance
StopBits	This parameter can be one of the following values: LL_LPUART_STOPBITS_1 LL_LPUART_STOPBITS_2

Return values

None

Definition at line 1009 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR2, USART_CR2_STOP, StopBits);
 }

◆ LL_LPUART_SetTransferBitOrder()

__STATIC_INLINE void LL_LPUART_SetTransferBitOrder	(	USART_TypeDef *	LPUARTx,
		uint32_t	BitOrder
	)

Configure transfer bit order (either Less or Most Significant Bit First)

Note: MSB First means data is transmitted/received with the MSB first, following the start bit. LSB First means data is transmitted/received with data bit 0 first, following the start bit. CR2 MSBFIRST LL_LPUART_SetTransferBitOrder

Parameters

LPUARTx	LPUART Instance
BitOrder	This parameter can be one of the following values: LL_LPUART_BITORDER_LSBFIRST LL_LPUART_BITORDER_MSBFIRST

Return values

None

Definition at line 1180 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR2, USART_CR2_MSBFIRST, BitOrder);
 }

◆ LL_LPUART_SetTransferDirection()

__STATIC_INLINE void LL_LPUART_SetTransferDirection	(	USART_TypeDef *	LPUARTx,
		uint32_t	TransferDirection
	)

Configure simultaneously enabled/disabled states of Transmitter and Receiver CR1 RE LL_LPUART_SetTransferDirection
CR1 TE LL_LPUART_SetTransferDirection.

Parameters

LPUARTx	LPUART Instance
TransferDirection	This parameter can be one of the following values: LL_LPUART_DIRECTION_NONE LL_LPUART_DIRECTION_RX LL_LPUART_DIRECTION_TX LL_LPUART_DIRECTION_TX_RX

Return values

None

Definition at line 807 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR1, USART_CR1_RE | USART_CR1_TE, TransferDirection);
 }

◆ LL_LPUART_SetTXFIFOThreshold()

__STATIC_INLINE void LL_LPUART_SetTXFIFOThreshold	(	USART_TypeDef *	LPUARTx,
		uint32_t	Threshold
	)

Configure TX FIFO Threshold CR3 TXFTCFG LL_LPUART_SetTXFIFOThreshold.

Parameters

LPUARTx	LPUART Instance
Threshold	This parameter can be one of the following values: LL_LPUART_FIFOTHRESHOLD_1_8 LL_LPUART_FIFOTHRESHOLD_1_4 LL_LPUART_FIFOTHRESHOLD_1_2 LL_LPUART_FIFOTHRESHOLD_3_4 LL_LPUART_FIFOTHRESHOLD_7_8 LL_LPUART_FIFOTHRESHOLD_8_8

Return values

None

Definition at line 592 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR3, USART_CR3_TXFTCFG, Threshold << USART_CR3_TXFTCFG_Pos);
 }

◆ LL_LPUART_SetTXPinLevel()

__STATIC_INLINE void LL_LPUART_SetTXPinLevel	(	USART_TypeDef *	LPUARTx,
		uint32_t	PinInvMethod
	)

Configure TX pin active level logic CR2 TXINV LL_LPUART_SetTXPinLevel.

Parameters

LPUARTx	LPUART Instance
PinInvMethod	This parameter can be one of the following values: LL_LPUART_TXPIN_LEVEL_STANDARD LL_LPUART_TXPIN_LEVEL_INVERTED

Return values

None

Definition at line 1121 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR2, USART_CR2_TXINV, PinInvMethod);
 }

◆ LL_LPUART_SetTXRXSwap()

__STATIC_INLINE void LL_LPUART_SetTXRXSwap	(	USART_TypeDef *	LPUARTx,
		uint32_t	SwapConfig
	)

Configure TX/RX pins swapping setting. CR2 SWAP LL_LPUART_SetTXRXSwap.

Parameters

LPUARTx	LPUART Instance
SwapConfig	This parameter can be one of the following values: LL_LPUART_TXRX_STANDARD LL_LPUART_TXRX_SWAPPED

Return values

None

Definition at line 1067 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR2, USART_CR2_SWAP, SwapConfig);
 }

◆ LL_LPUART_SetWakeUpMethod()

__STATIC_INLINE void LL_LPUART_SetWakeUpMethod	(	USART_TypeDef *	LPUARTx,
		uint32_t	Method
	)

Set Receiver Wake Up method from Mute mode. CR1 WAKE LL_LPUART_SetWakeUpMethod.

Parameters

LPUARTx	LPUART Instance
Method	This parameter can be one of the following values: LL_LPUART_WAKEUP_IDLELINE LL_LPUART_WAKEUP_ADDRESSMARK

Return values

None

Definition at line 871 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR1, USART_CR1_WAKE, Method);
 }

◆ LL_LPUART_SetWKUPType()

__STATIC_INLINE void LL_LPUART_SetWKUPType	(	USART_TypeDef *	LPUARTx,
		uint32_t	Type
	)

Select event type for Wake UP Interrupt Flag (WUS[1:0] bits) CR3 WUS LL_LPUART_SetWKUPType.

Parameters

LPUARTx	LPUART Instance
Type	This parameter can be one of the following values: LL_LPUART_WAKEUP_ON_ADDRESS LL_LPUART_WAKEUP_ON_STARTBIT LL_LPUART_WAKEUP_ON_RXNE

Return values

None

Definition at line 1377 of file stm32l4xx_ll_lpuart.h.

 {
   MODIFY_REG(LPUARTx->CR3, USART_CR3_WUS, Type);
 }

◆ return()

return ( brrresult )

Variable Documentation

◆ BaudRate

__STATIC_INLINE void uint32_t uint32_t BaudRate

Initial value:

{
#if defined(USART_PRESC_PRESCALER)
  LPUARTx->BRR = __LL_LPUART_DIV(PeriphClk, PrescalerValue, BaudRate)

Definition at line 1433 of file stm32l4xx_ll_lpuart.h.

◆ BRR

LPUARTx BRR = __LL_LPUART_DIV(PeriphClk, BaudRate)

Definition at line 1437 of file stm32l4xx_ll_lpuart.h.

◆ brrresult

register uint32_t brrresult

Definition at line 1472 of file stm32l4xx_ll_lpuart.h.

◆ else

else

Initial value:

{

brrresult = 0x0UL

brrresult

register uint32_t brrresult

Definition: stm32l4xx_ll_lpuart.h:1472

Definition at line 1488 of file stm32l4xx_ll_lpuart.h.

◆ lpuartdiv

lpuartdiv = LPUARTx->BRR & LPUART_BRR_MASK

Definition at line 1477 of file stm32l4xx_ll_lpuart.h.

◆ PeriphClk

__STATIC_INLINE uint32_t uint32_t PeriphClk

Initial value:

{

register uint32_t lpuartdiv

lpuartdiv

Definition: stm32l4xx_ll_lpuart.h:1477

Definition at line 1431 of file stm32l4xx_ll_lpuart.h.

◆ periphclkpresc

register uint32_t periphclkpresc = (uint32_t)(PeriphClk / (LPUART_PRESCALER_TAB[(uint16_t)PrescalerValue]))

Definition at line 1474 of file stm32l4xx_ll_lpuart.h.

Functions

Variables

Detailed Description

Function Documentation

◆ if()

◆ LL_LPUART_ConfigCharacter()

◆ LL_LPUART_ConfigFIFOsThreshold()

◆ LL_LPUART_ConfigNodeAddress()

◆ LL_LPUART_Disable()

◆ LL_LPUART_DisableClockInStopMode()

◆ LL_LPUART_DisableCTSHWFlowCtrl()

◆ LL_LPUART_DisableDirectionRx()

◆ LL_LPUART_DisableDirectionTx()

◆ LL_LPUART_DisableFIFO()

◆ LL_LPUART_DisableInStopMode()

◆ LL_LPUART_DisableMuteMode()

◆ LL_LPUART_DisableOverrunDetect()

◆ LL_LPUART_DisableRTSHWFlowCtrl()

◆ LL_LPUART_Enable()

◆ LL_LPUART_EnableClockInStopMode()

◆ LL_LPUART_EnableCTSHWFlowCtrl()

◆ LL_LPUART_EnableDirectionRx()

◆ LL_LPUART_EnableDirectionTx()

◆ LL_LPUART_EnableFIFO()

◆ LL_LPUART_EnableInStopMode()

◆ LL_LPUART_EnableMuteMode()

◆ LL_LPUART_EnableOverrunDetect()

◆ LL_LPUART_EnableRTSHWFlowCtrl()

◆ LL_LPUART_GetBaudRate()

◆ LL_LPUART_GetBinaryDataLogic()

◆ LL_LPUART_GetDataWidth()

◆ LL_LPUART_GetHWFlowCtrl()

◆ LL_LPUART_GetNodeAddress()

◆ LL_LPUART_GetNodeAddressLen()

◆ LL_LPUART_GetParity()

◆ LL_LPUART_GetPrescaler()

◆ LL_LPUART_GetRXFIFOThreshold()

◆ LL_LPUART_GetRXPinLevel()

◆ LL_LPUART_GetStopBitsLength()

◆ LL_LPUART_GetTransferBitOrder()

◆ LL_LPUART_GetTransferDirection()

◆ LL_LPUART_GetTXFIFOThreshold()

◆ LL_LPUART_GetTXPinLevel()

◆ LL_LPUART_GetTXRXSwap()

◆ LL_LPUART_GetWakeUpMethod()

◆ LL_LPUART_GetWKUPType()

◆ LL_LPUART_IsClockEnabledInStopMode()

◆ LL_LPUART_IsEnabled()

◆ LL_LPUART_IsEnabledFIFO()

◆ LL_LPUART_IsEnabledInStopMode()

◆ LL_LPUART_IsEnabledMuteMode()

◆ LL_LPUART_IsEnabledOverrunDetect()

◆ LL_LPUART_SetBaudRate()

◆ LL_LPUART_SetBinaryDataLogic()

◆ LL_LPUART_SetDataWidth()

◆ LL_LPUART_SetHWFlowCtrl()

◆ LL_LPUART_SetParity()

◆ LL_LPUART_SetPrescaler()

◆ LL_LPUART_SetRXFIFOThreshold()

◆ LL_LPUART_SetRXPinLevel()

◆ LL_LPUART_SetStopBitsLength()

◆ LL_LPUART_SetTransferBitOrder()

◆ LL_LPUART_SetTransferDirection()

◆ LL_LPUART_SetTXFIFOThreshold()

◆ LL_LPUART_SetTXPinLevel()

◆ LL_LPUART_SetTXRXSwap()

◆ LL_LPUART_SetWakeUpMethod()

◆ LL_LPUART_SetWKUPType()

◆ return()

Variable Documentation

◆ BaudRate

◆ BRR

◆ brrresult

◆ else

◆ lpuartdiv

◆ PeriphClk

◆ periphclkpresc