Collaboration diagram for Configuration functions:

Functions
__STATIC_INLINE void	LL_USART_Enable (USART_TypeDef *USARTx)
	USART Enable @rmtoll CR1 UE LL_USART_Enable. More...

__STATIC_INLINE void	LL_USART_Disable (USART_TypeDef *USARTx)
	USART Disable (all USART prescalers and outputs are disabled) More...

__STATIC_INLINE uint32_t	LL_USART_IsEnabled (const USART_TypeDef *USARTx)
	Indicate if USART is enabled @rmtoll CR1 UE LL_USART_IsEnabled. More...

__STATIC_INLINE void	LL_USART_EnableDirectionRx (USART_TypeDef *USARTx)
	Receiver Enable (Receiver is enabled and begins searching for a start bit) @rmtoll CR1 RE LL_USART_EnableDirectionRx. More...

__STATIC_INLINE void	LL_USART_DisableDirectionRx (USART_TypeDef *USARTx)
	Receiver Disable @rmtoll CR1 RE LL_USART_DisableDirectionRx. More...

__STATIC_INLINE void	LL_USART_EnableDirectionTx (USART_TypeDef *USARTx)
	Transmitter Enable @rmtoll CR1 TE LL_USART_EnableDirectionTx. More...

__STATIC_INLINE void	LL_USART_DisableDirectionTx (USART_TypeDef *USARTx)
	Transmitter Disable @rmtoll CR1 TE LL_USART_DisableDirectionTx. More...

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

__STATIC_INLINE uint32_t	LL_USART_GetTransferDirection (const USART_TypeDef *USARTx)
	Return enabled/disabled states of Transmitter and Receiver @rmtoll CR1 RE LL_USART_GetTransferDirection CR1 TE LL_USART_GetTransferDirection. More...

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

__STATIC_INLINE uint32_t	LL_USART_GetParity (const USART_TypeDef *USARTx)
	Return Parity configuration (enabled/disabled and parity mode if enabled) @rmtoll CR1 PS LL_USART_GetParity CR1 PCE LL_USART_GetParity. More...

__STATIC_INLINE void	LL_USART_SetWakeUpMethod (USART_TypeDef *USARTx, uint32_t Method)
	Set Receiver Wake Up method from Mute mode. @rmtoll CR1 WAKE LL_USART_SetWakeUpMethod. More...

__STATIC_INLINE uint32_t	LL_USART_GetWakeUpMethod (const USART_TypeDef *USARTx)
	Return Receiver Wake Up method from Mute mode @rmtoll CR1 WAKE LL_USART_GetWakeUpMethod. More...

__STATIC_INLINE void	LL_USART_SetDataWidth (USART_TypeDef *USARTx, uint32_t DataWidth)
	Set Word length (i.e. nb of data bits, excluding start and stop bits) @rmtoll CR1 M LL_USART_SetDataWidth. More...

__STATIC_INLINE uint32_t	LL_USART_GetDataWidth (const USART_TypeDef *USARTx)
	Return Word length (i.e. nb of data bits, excluding start and stop bits) @rmtoll CR1 M LL_USART_GetDataWidth. More...

__STATIC_INLINE void	LL_USART_SetOverSampling (USART_TypeDef *USARTx, uint32_t OverSampling)
	Set Oversampling to 8-bit or 16-bit mode @rmtoll CR1 OVER8 LL_USART_SetOverSampling. More...

__STATIC_INLINE uint32_t	LL_USART_GetOverSampling (const USART_TypeDef *USARTx)
	Return Oversampling mode @rmtoll CR1 OVER8 LL_USART_GetOverSampling. More...

__STATIC_INLINE void	LL_USART_SetLastClkPulseOutput (USART_TypeDef *USARTx, uint32_t LastBitClockPulse)
	Configure if Clock pulse of the last data bit is output to the SCLK pin or not. More...

__STATIC_INLINE uint32_t	LL_USART_GetLastClkPulseOutput (const USART_TypeDef *USARTx)
	Retrieve Clock pulse of the last data bit output configuration (Last bit Clock pulse output to the SCLK pin or not) More...

__STATIC_INLINE void	LL_USART_SetClockPhase (USART_TypeDef *USARTx, uint32_t ClockPhase)
	Select the phase of the clock output on the SCLK pin in synchronous mode. More...

__STATIC_INLINE uint32_t	LL_USART_GetClockPhase (const USART_TypeDef *USARTx)
	Return phase of the clock output on the SCLK pin in synchronous mode. More...

__STATIC_INLINE void	LL_USART_SetClockPolarity (USART_TypeDef *USARTx, uint32_t ClockPolarity)
	Select the polarity of the clock output on the SCLK pin in synchronous mode. More...

__STATIC_INLINE uint32_t	LL_USART_GetClockPolarity (const USART_TypeDef *USARTx)
	Return polarity of the clock output on the SCLK pin in synchronous mode. More...

__STATIC_INLINE void	LL_USART_ConfigClock (USART_TypeDef *USARTx, uint32_t Phase, uint32_t Polarity, uint32_t LBCPOutput)
	Configure Clock signal format (Phase Polarity and choice about output of last bit clock pulse) More...

__STATIC_INLINE void	LL_USART_EnableSCLKOutput (USART_TypeDef *USARTx)
	Enable Clock output on SCLK pin. More...

__STATIC_INLINE void	LL_USART_DisableSCLKOutput (USART_TypeDef *USARTx)
	Disable Clock output on SCLK pin. More...

__STATIC_INLINE uint32_t	LL_USART_IsEnabledSCLKOutput (const USART_TypeDef *USARTx)
	Indicate if Clock output on SCLK pin is enabled. More...

__STATIC_INLINE void	LL_USART_SetStopBitsLength (USART_TypeDef *USARTx, uint32_t StopBits)
	Set the length of the stop bits @rmtoll CR2 STOP LL_USART_SetStopBitsLength. More...

__STATIC_INLINE uint32_t	LL_USART_GetStopBitsLength (const USART_TypeDef *USARTx)
	Retrieve the length of the stop bits @rmtoll CR2 STOP LL_USART_GetStopBitsLength. More...

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

__STATIC_INLINE void	LL_USART_SetNodeAddress (USART_TypeDef *USARTx, uint32_t NodeAddress)
	Set Address of the USART node. More...

__STATIC_INLINE uint32_t	LL_USART_GetNodeAddress (const USART_TypeDef *USARTx)
	Return 4 bit Address of the USART node as set in ADD field of CR2. More...

__STATIC_INLINE void	LL_USART_EnableRTSHWFlowCtrl (USART_TypeDef *USARTx)
	Enable RTS HW Flow Control. More...

__STATIC_INLINE void	LL_USART_DisableRTSHWFlowCtrl (USART_TypeDef *USARTx)
	Disable RTS HW Flow Control. More...

__STATIC_INLINE void	LL_USART_EnableCTSHWFlowCtrl (USART_TypeDef *USARTx)
	Enable CTS HW Flow Control. More...

__STATIC_INLINE void	LL_USART_DisableCTSHWFlowCtrl (USART_TypeDef *USARTx)
	Disable CTS HW Flow Control. More...

__STATIC_INLINE void	LL_USART_SetHWFlowCtrl (USART_TypeDef *USARTx, uint32_t HardwareFlowControl)
	Configure HW Flow Control mode (both CTS and RTS) More...

__STATIC_INLINE uint32_t	LL_USART_GetHWFlowCtrl (const USART_TypeDef *USARTx)
	Return HW Flow Control configuration (both CTS and RTS) More...

__STATIC_INLINE void	LL_USART_EnableOneBitSamp (USART_TypeDef *USARTx)
	Enable One bit sampling method @rmtoll CR3 ONEBIT LL_USART_EnableOneBitSamp. More...

__STATIC_INLINE void	LL_USART_DisableOneBitSamp (USART_TypeDef *USARTx)
	Disable One bit sampling method @rmtoll CR3 ONEBIT LL_USART_DisableOneBitSamp. More...

__STATIC_INLINE uint32_t	LL_USART_IsEnabledOneBitSamp (const USART_TypeDef *USARTx)
	Indicate if One bit sampling method is enabled @rmtoll CR3 ONEBIT LL_USART_IsEnabledOneBitSamp. More...

__STATIC_INLINE void	LL_USART_SetBaudRate (USART_TypeDef *USARTx, uint32_t PeriphClk, uint32_t OverSampling, uint32_t BaudRate)
	Configure USART BRR register for achieving expected Baud Rate value. More...

__STATIC_INLINE uint32_t	LL_USART_GetBaudRate (const USART_TypeDef *USARTx, uint32_t PeriphClk, uint32_t OverSampling)
	Return current Baud Rate value, according to USARTDIV present in BRR register (full BRR content), and to used Peripheral Clock and Oversampling mode values. More...

Detailed Description

Function Documentation

◆ LL_USART_ConfigCharacter()

__STATIC_INLINE void LL_USART_ConfigCharacter	(	USART_TypeDef *	USARTx,
		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_USART_SetDataWidth() function
Parity Control and mode configuration using LL_USART_SetParity() function
Stop bits configuration using LL_USART_SetStopBitsLength() function @rmtoll CR1 PS LL_USART_ConfigCharacter
CR1 PCE LL_USART_ConfigCharacter
CR1 M LL_USART_ConfigCharacter
CR2 STOP LL_USART_ConfigCharacter

Parameters

USARTx	USART Instance
DataWidth	This parameter can be one of the following values: LL_USART_DATAWIDTH_8B LL_USART_DATAWIDTH_9B
Parity	This parameter can be one of the following values: LL_USART_PARITY_NONE LL_USART_PARITY_EVEN LL_USART_PARITY_ODD
StopBits	This parameter can be one of the following values: LL_USART_STOPBITS_0_5 LL_USART_STOPBITS_1 LL_USART_STOPBITS_1_5 LL_USART_STOPBITS_2

Return values

None

Definition at line 850 of file stm32f4xx_ll_usart.h.

◆ LL_USART_ConfigClock()

__STATIC_INLINE void LL_USART_ConfigClock	(	USART_TypeDef *	USARTx,
		uint32_t	Phase,
		uint32_t	Polarity,
		uint32_t	LBCPOutput
	)

Configure Clock signal format (Phase Polarity and choice about output of last bit clock pulse)

Note

Macro IS_USART_INSTANCE(USARTx) can be used to check whether or not Synchronous mode is supported by the USARTx instance.

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

Clock Phase configuration using LL_USART_SetClockPhase() function
Clock Polarity configuration using LL_USART_SetClockPolarity() function
Output of Last bit Clock pulse configuration using LL_USART_SetLastClkPulseOutput() function @rmtoll CR2 CPHA LL_USART_ConfigClock
CR2 CPOL LL_USART_ConfigClock
CR2 LBCL LL_USART_ConfigClock

Parameters

USARTx	USART Instance
Phase	This parameter can be one of the following values: LL_USART_PHASE_1EDGE LL_USART_PHASE_2EDGE
Polarity	This parameter can be one of the following values: LL_USART_POLARITY_LOW LL_USART_POLARITY_HIGH
LBCPOutput	This parameter can be one of the following values: LL_USART_LASTCLKPULSE_NO_OUTPUT LL_USART_LASTCLKPULSE_OUTPUT

Return values

None

Definition at line 750 of file stm32f4xx_ll_usart.h.

◆ LL_USART_Disable()

__STATIC_INLINE void LL_USART_Disable ( USART_TypeDef * USARTx )

USART Disable (all USART prescalers and outputs are disabled)

Note: When USART is disabled, USART prescalers and outputs are stopped immediately, and current operations are discarded. The configuration of the USART is kept, but all the status flags, in the USARTx_SR are set to their default values. @rmtoll CR1 UE LL_USART_Disable

Parameters

USARTx USART Instance

Return values

None

Definition at line 424 of file stm32f4xx_ll_usart.h.

◆ LL_USART_DisableCTSHWFlowCtrl()

__STATIC_INLINE void LL_USART_DisableCTSHWFlowCtrl ( USART_TypeDef * USARTx )

Disable CTS HW Flow Control.

Note: Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not Hardware Flow control feature is supported by the USARTx instance. @rmtoll CR3 CTSE LL_USART_DisableCTSHWFlowCtrl

Parameters

USARTx USART Instance

Return values

None

Definition at line 930 of file stm32f4xx_ll_usart.h.

◆ LL_USART_DisableDirectionRx()

__STATIC_INLINE void LL_USART_DisableDirectionRx ( USART_TypeDef * USARTx )

Receiver Disable @rmtoll CR1 RE LL_USART_DisableDirectionRx.

Parameters

USARTx USART Instance

Return values

None

Definition at line 457 of file stm32f4xx_ll_usart.h.

◆ LL_USART_DisableDirectionTx()

__STATIC_INLINE void LL_USART_DisableDirectionTx ( USART_TypeDef * USARTx )

Transmitter Disable @rmtoll CR1 TE LL_USART_DisableDirectionTx.

Parameters

USARTx USART Instance

Return values

None

Definition at line 479 of file stm32f4xx_ll_usart.h.

◆ LL_USART_DisableOneBitSamp()

__STATIC_INLINE void LL_USART_DisableOneBitSamp ( USART_TypeDef * USARTx )

Disable One bit sampling method @rmtoll CR3 ONEBIT LL_USART_DisableOneBitSamp.

Parameters

USARTx USART Instance

Return values

None

Definition at line 989 of file stm32f4xx_ll_usart.h.

◆ LL_USART_DisableRTSHWFlowCtrl()

__STATIC_INLINE void LL_USART_DisableRTSHWFlowCtrl ( USART_TypeDef * USARTx )

Disable RTS HW Flow Control.

Note: Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not Hardware Flow control feature is supported by the USARTx instance. @rmtoll CR3 RTSE LL_USART_DisableRTSHWFlowCtrl

Parameters

USARTx USART Instance

Return values

None

Definition at line 904 of file stm32f4xx_ll_usart.h.

◆ LL_USART_DisableSCLKOutput()

__STATIC_INLINE void LL_USART_DisableSCLKOutput ( USART_TypeDef * USARTx )

Disable Clock output on SCLK pin.

Note: Macro IS_USART_INSTANCE(USARTx) can be used to check whether or not Synchronous mode is supported by the USARTx instance. @rmtoll CR2 CLKEN LL_USART_DisableSCLKOutput

Parameters

USARTx USART Instance

Return values

None

Definition at line 776 of file stm32f4xx_ll_usart.h.

◆ LL_USART_Enable()

__STATIC_INLINE void LL_USART_Enable ( USART_TypeDef * USARTx )

USART Enable @rmtoll CR1 UE LL_USART_Enable.

Parameters

USARTx USART Instance

Return values

None

Definition at line 410 of file stm32f4xx_ll_usart.h.

◆ LL_USART_EnableCTSHWFlowCtrl()

__STATIC_INLINE void LL_USART_EnableCTSHWFlowCtrl ( USART_TypeDef * USARTx )

Enable CTS HW Flow Control.

Note: Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not Hardware Flow control feature is supported by the USARTx instance. @rmtoll CR3 CTSE LL_USART_EnableCTSHWFlowCtrl

Parameters

USARTx USART Instance

Return values

None

Definition at line 917 of file stm32f4xx_ll_usart.h.

◆ LL_USART_EnableDirectionRx()

__STATIC_INLINE void LL_USART_EnableDirectionRx ( USART_TypeDef * USARTx )

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

Parameters

USARTx USART Instance

Return values

None

Definition at line 446 of file stm32f4xx_ll_usart.h.

◆ LL_USART_EnableDirectionTx()

__STATIC_INLINE void LL_USART_EnableDirectionTx ( USART_TypeDef * USARTx )

Transmitter Enable @rmtoll CR1 TE LL_USART_EnableDirectionTx.

Parameters

USARTx USART Instance

Return values

None

Definition at line 468 of file stm32f4xx_ll_usart.h.

◆ LL_USART_EnableOneBitSamp()

__STATIC_INLINE void LL_USART_EnableOneBitSamp ( USART_TypeDef * USARTx )

Enable One bit sampling method @rmtoll CR3 ONEBIT LL_USART_EnableOneBitSamp.

Parameters

USARTx USART Instance

Return values

None

Definition at line 978 of file stm32f4xx_ll_usart.h.

◆ LL_USART_EnableRTSHWFlowCtrl()

__STATIC_INLINE void LL_USART_EnableRTSHWFlowCtrl ( USART_TypeDef * USARTx )

Enable RTS HW Flow Control.

Note: Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not Hardware Flow control feature is supported by the USARTx instance. @rmtoll CR3 RTSE LL_USART_EnableRTSHWFlowCtrl

Parameters

USARTx USART Instance

Return values

None

Definition at line 891 of file stm32f4xx_ll_usart.h.

◆ LL_USART_EnableSCLKOutput()

__STATIC_INLINE void LL_USART_EnableSCLKOutput ( USART_TypeDef * USARTx )

Enable Clock output on SCLK pin.

Note: Macro IS_USART_INSTANCE(USARTx) can be used to check whether or not Synchronous mode is supported by the USARTx instance. @rmtoll CR2 CLKEN LL_USART_EnableSCLKOutput

Parameters

USARTx USART Instance

Return values

None

Definition at line 763 of file stm32f4xx_ll_usart.h.

◆ LL_USART_GetBaudRate()

__STATIC_INLINE uint32_t LL_USART_GetBaudRate	(	const USART_TypeDef *	USARTx,
		uint32_t	PeriphClk,
		uint32_t	OverSampling
	)

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

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

Parameters

USARTx	USART Instance
PeriphClk	Peripheral Clock
OverSampling	This parameter can be one of the following values: LL_USART_OVERSAMPLING_16 LL_USART_OVERSAMPLING_8

Return values

Baud Rate

Definition at line 1045 of file stm32f4xx_ll_usart.h.

◆ LL_USART_GetClockPhase()

__STATIC_INLINE uint32_t LL_USART_GetClockPhase ( const USART_TypeDef * USARTx )

Return phase of the clock output on the SCLK pin in synchronous mode.

Note: Macro IS_USART_INSTANCE(USARTx) can be used to check whether or not Synchronous mode is supported by the USARTx instance. @rmtoll CR2 CPHA LL_USART_GetClockPhase

Parameters

USARTx USART Instance

Return values

Returned

value can be one of the following values:

LL_USART_PHASE_1EDGE
LL_USART_PHASE_2EDGE

Definition at line 691 of file stm32f4xx_ll_usart.h.

◆ LL_USART_GetClockPolarity()

__STATIC_INLINE uint32_t LL_USART_GetClockPolarity ( const USART_TypeDef * USARTx )

Return polarity of the clock output on the SCLK pin in synchronous mode.

Note: Macro IS_USART_INSTANCE(USARTx) can be used to check whether or not Synchronous mode is supported by the USARTx instance. @rmtoll CR2 CPOL LL_USART_GetClockPolarity

Parameters

USARTx USART Instance

Return values

Returned

value can be one of the following values:

LL_USART_POLARITY_LOW
LL_USART_POLARITY_HIGH

Definition at line 722 of file stm32f4xx_ll_usart.h.

◆ LL_USART_GetDataWidth()

__STATIC_INLINE uint32_t LL_USART_GetDataWidth ( const USART_TypeDef * USARTx )

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

Parameters

USARTx USART Instance

Return values

Returned

value can be one of the following values:

LL_USART_DATAWIDTH_8B
LL_USART_DATAWIDTH_9B

Definition at line 601 of file stm32f4xx_ll_usart.h.

◆ LL_USART_GetHWFlowCtrl()

__STATIC_INLINE uint32_t LL_USART_GetHWFlowCtrl ( const USART_TypeDef * USARTx )

Return HW Flow Control configuration (both CTS and RTS)

Note: Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not Hardware Flow control feature is supported by the USARTx instance. @rmtoll CR3 RTSE LL_USART_GetHWFlowCtrl
CR3 CTSE LL_USART_GetHWFlowCtrl

Parameters

USARTx USART Instance

Return values

Returned

value can be one of the following values:

LL_USART_HWCONTROL_NONE
LL_USART_HWCONTROL_RTS
LL_USART_HWCONTROL_CTS
LL_USART_HWCONTROL_RTS_CTS

Definition at line 967 of file stm32f4xx_ll_usart.h.

◆ LL_USART_GetLastClkPulseOutput()

__STATIC_INLINE uint32_t LL_USART_GetLastClkPulseOutput ( const USART_TypeDef * USARTx )

Retrieve Clock pulse of the last data bit output configuration (Last bit Clock pulse output to the SCLK pin or not)

Note: Macro IS_USART_INSTANCE(USARTx) can be used to check whether or not Synchronous mode is supported by the USARTx instance. @rmtoll CR2 LBCL LL_USART_GetLastClkPulseOutput

Parameters

USARTx USART Instance

Return values

Returned

value can be one of the following values:

LL_USART_LASTCLKPULSE_NO_OUTPUT
LL_USART_LASTCLKPULSE_OUTPUT

Definition at line 660 of file stm32f4xx_ll_usart.h.

◆ LL_USART_GetNodeAddress()

__STATIC_INLINE uint32_t LL_USART_GetNodeAddress ( const USART_TypeDef * USARTx )

Return 4 bit Address of the USART node as set in ADD field of CR2.

Note: only 4bits (b3-b0) of returned value are relevant (b31-b4 are not relevant) @rmtoll CR2 ADD LL_USART_GetNodeAddress

Parameters

USARTx USART Instance

Return values

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

Definition at line 878 of file stm32f4xx_ll_usart.h.

◆ LL_USART_GetOverSampling()

__STATIC_INLINE uint32_t LL_USART_GetOverSampling ( const USART_TypeDef * USARTx )

Return Oversampling mode @rmtoll CR1 OVER8 LL_USART_GetOverSampling.

Parameters

USARTx USART Instance

Return values

Returned

value can be one of the following values:

LL_USART_OVERSAMPLING_16
LL_USART_OVERSAMPLING_8

Definition at line 628 of file stm32f4xx_ll_usart.h.

◆ LL_USART_GetParity()

__STATIC_INLINE uint32_t LL_USART_GetParity ( const USART_TypeDef * USARTx )

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

Parameters

USARTx USART Instance

Return values

Returned

value can be one of the following values:

LL_USART_PARITY_NONE
LL_USART_PARITY_EVEN
LL_USART_PARITY_ODD

Definition at line 547 of file stm32f4xx_ll_usart.h.

◆ LL_USART_GetStopBitsLength()

__STATIC_INLINE uint32_t LL_USART_GetStopBitsLength ( const USART_TypeDef * USARTx )

Retrieve the length of the stop bits @rmtoll CR2 STOP LL_USART_GetStopBitsLength.

Parameters

USARTx USART Instance

Return values

Returned

value can be one of the following values:

LL_USART_STOPBITS_0_5
LL_USART_STOPBITS_1
LL_USART_STOPBITS_1_5
LL_USART_STOPBITS_2

Definition at line 820 of file stm32f4xx_ll_usart.h.

◆ LL_USART_GetTransferDirection()

__STATIC_INLINE uint32_t LL_USART_GetTransferDirection ( const USART_TypeDef * USARTx )

Return enabled/disabled states of Transmitter and Receiver @rmtoll CR1 RE LL_USART_GetTransferDirection
CR1 TE LL_USART_GetTransferDirection.

Parameters

USARTx USART Instance

Return values

Returned

value can be one of the following values:

LL_USART_DIRECTION_NONE
LL_USART_DIRECTION_RX
LL_USART_DIRECTION_TX
LL_USART_DIRECTION_TX_RX

Definition at line 513 of file stm32f4xx_ll_usart.h.

◆ LL_USART_GetWakeUpMethod()

__STATIC_INLINE uint32_t LL_USART_GetWakeUpMethod ( const USART_TypeDef * USARTx )

Return Receiver Wake Up method from Mute mode @rmtoll CR1 WAKE LL_USART_GetWakeUpMethod.

Parameters

USARTx USART Instance

Return values

Returned

value can be one of the following values:

LL_USART_WAKEUP_IDLELINE
LL_USART_WAKEUP_ADDRESSMARK

Definition at line 574 of file stm32f4xx_ll_usart.h.

◆ LL_USART_IsEnabled()

__STATIC_INLINE uint32_t LL_USART_IsEnabled ( const USART_TypeDef * USARTx )

Indicate if USART is enabled @rmtoll CR1 UE LL_USART_IsEnabled.

Parameters

USARTx USART Instance

Return values

State of bit (1 or 0).

Definition at line 435 of file stm32f4xx_ll_usart.h.

◆ LL_USART_IsEnabledOneBitSamp()

__STATIC_INLINE uint32_t LL_USART_IsEnabledOneBitSamp ( const USART_TypeDef * USARTx )

Indicate if One bit sampling method is enabled @rmtoll CR3 ONEBIT LL_USART_IsEnabledOneBitSamp.

Parameters

USARTx USART Instance

Return values

State of bit (1 or 0).

Definition at line 1000 of file stm32f4xx_ll_usart.h.

◆ LL_USART_IsEnabledSCLKOutput()

__STATIC_INLINE uint32_t LL_USART_IsEnabledSCLKOutput ( const USART_TypeDef * USARTx )

Indicate if Clock output on SCLK pin is enabled.

Note: Macro IS_USART_INSTANCE(USARTx) can be used to check whether or not Synchronous mode is supported by the USARTx instance. @rmtoll CR2 CLKEN LL_USART_IsEnabledSCLKOutput

Parameters

USARTx USART Instance

Return values

State of bit (1 or 0).

Definition at line 789 of file stm32f4xx_ll_usart.h.

◆ LL_USART_SetBaudRate()

__STATIC_INLINE void LL_USART_SetBaudRate	(	USART_TypeDef *	USARTx,
		uint32_t	PeriphClk,
		uint32_t	OverSampling,
		uint32_t	BaudRate
	)

Configure USART BRR register for achieving expected Baud Rate value.

Note: Compute and set USARTDIV value in BRR Register (full BRR content) according to used Peripheral Clock, Oversampling mode, and expected Baud Rate values; Peripheral clock and Baud rate values provided as function parameters should be valid (Baud rate value != 0) @rmtoll BRR BRR LL_USART_SetBaudRate

Parameters

USARTx	USART Instance
PeriphClk	Peripheral Clock
OverSampling	This parameter can be one of the following values: LL_USART_OVERSAMPLING_16 LL_USART_OVERSAMPLING_8
BaudRate	Baud Rate

Return values

None

Definition at line 1020 of file stm32f4xx_ll_usart.h.

◆ LL_USART_SetClockPhase()

__STATIC_INLINE void LL_USART_SetClockPhase	(	USART_TypeDef *	USARTx,
		uint32_t	ClockPhase
	)

Select the phase of the clock output on the SCLK pin in synchronous mode.

Note: Macro IS_USART_INSTANCE(USARTx) can be used to check whether or not Synchronous mode is supported by the USARTx instance. @rmtoll CR2 CPHA LL_USART_SetClockPhase

Parameters

USARTx	USART Instance
ClockPhase	This parameter can be one of the following values: LL_USART_PHASE_1EDGE LL_USART_PHASE_2EDGE

Return values

None

Definition at line 676 of file stm32f4xx_ll_usart.h.

◆ LL_USART_SetClockPolarity()

__STATIC_INLINE void LL_USART_SetClockPolarity	(	USART_TypeDef *	USARTx,
		uint32_t	ClockPolarity
	)

Select the polarity of the clock output on the SCLK pin in synchronous mode.

Note: Macro IS_USART_INSTANCE(USARTx) can be used to check whether or not Synchronous mode is supported by the USARTx instance. @rmtoll CR2 CPOL LL_USART_SetClockPolarity

Parameters

USARTx	USART Instance
ClockPolarity	This parameter can be one of the following values: LL_USART_POLARITY_LOW LL_USART_POLARITY_HIGH

Return values

None

Definition at line 707 of file stm32f4xx_ll_usart.h.

◆ LL_USART_SetDataWidth()

__STATIC_INLINE void LL_USART_SetDataWidth	(	USART_TypeDef *	USARTx,
		uint32_t	DataWidth
	)

Set Word length (i.e. nb of data bits, excluding start and stop bits) @rmtoll CR1 M LL_USART_SetDataWidth.

Parameters

USARTx	USART Instance
DataWidth	This parameter can be one of the following values: LL_USART_DATAWIDTH_8B LL_USART_DATAWIDTH_9B

Return values

None

Definition at line 588 of file stm32f4xx_ll_usart.h.

◆ LL_USART_SetHWFlowCtrl()

__STATIC_INLINE void LL_USART_SetHWFlowCtrl	(	USART_TypeDef *	USARTx,
		uint32_t	HardwareFlowControl
	)

Configure HW Flow Control mode (both CTS and RTS)

Note: Macro IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not Hardware Flow control feature is supported by the USARTx instance. @rmtoll CR3 RTSE LL_USART_SetHWFlowCtrl
CR3 CTSE LL_USART_SetHWFlowCtrl

Parameters

USARTx	USART Instance
HardwareFlowControl	This parameter can be one of the following values: LL_USART_HWCONTROL_NONE LL_USART_HWCONTROL_RTS LL_USART_HWCONTROL_CTS LL_USART_HWCONTROL_RTS_CTS

Return values

None

Definition at line 949 of file stm32f4xx_ll_usart.h.

◆ LL_USART_SetLastClkPulseOutput()

__STATIC_INLINE void LL_USART_SetLastClkPulseOutput	(	USART_TypeDef *	USARTx,
		uint32_t	LastBitClockPulse
	)

Configure if Clock pulse of the last data bit is output to the SCLK pin or not.

Note: Macro IS_USART_INSTANCE(USARTx) can be used to check whether or not Synchronous mode is supported by the USARTx instance. @rmtoll CR2 LBCL LL_USART_SetLastClkPulseOutput

Parameters

USARTx	USART Instance
LastBitClockPulse	This parameter can be one of the following values: LL_USART_LASTCLKPULSE_NO_OUTPUT LL_USART_LASTCLKPULSE_OUTPUT

Return values

None

Definition at line 644 of file stm32f4xx_ll_usart.h.

◆ LL_USART_SetNodeAddress()

__STATIC_INLINE void LL_USART_SetNodeAddress	(	USART_TypeDef *	USARTx,
		uint32_t	NodeAddress
	)

Set Address of the USART node.

Note: This is used in multiprocessor communication during Mute mode or Stop mode, for wake up with address mark detection. @rmtoll CR2 ADD LL_USART_SetNodeAddress

Parameters

USARTx	USART Instance
NodeAddress	4 bit Address of the USART node.

Return values

None

Definition at line 866 of file stm32f4xx_ll_usart.h.

◆ LL_USART_SetOverSampling()

__STATIC_INLINE void LL_USART_SetOverSampling	(	USART_TypeDef *	USARTx,
		uint32_t	OverSampling
	)

Set Oversampling to 8-bit or 16-bit mode @rmtoll CR1 OVER8 LL_USART_SetOverSampling.

Parameters

USARTx	USART Instance
OverSampling	This parameter can be one of the following values: LL_USART_OVERSAMPLING_16 LL_USART_OVERSAMPLING_8

Return values

None

Definition at line 615 of file stm32f4xx_ll_usart.h.

◆ LL_USART_SetParity()

__STATIC_INLINE void LL_USART_SetParity	(	USART_TypeDef *	USARTx,
		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 (9th or 8th bit depending on data width) and parity is checked on the received data. @rmtoll CR1 PS LL_USART_SetParity
CR1 PCE LL_USART_SetParity

Parameters

USARTx	USART Instance
Parity	This parameter can be one of the following values: LL_USART_PARITY_NONE LL_USART_PARITY_EVEN LL_USART_PARITY_ODD

Return values

None

Definition at line 532 of file stm32f4xx_ll_usart.h.

◆ LL_USART_SetStopBitsLength()

__STATIC_INLINE void LL_USART_SetStopBitsLength	(	USART_TypeDef *	USARTx,
		uint32_t	StopBits
	)

Set the length of the stop bits @rmtoll CR2 STOP LL_USART_SetStopBitsLength.

Parameters

USARTx	USART Instance
StopBits	This parameter can be one of the following values: LL_USART_STOPBITS_0_5 LL_USART_STOPBITS_1 LL_USART_STOPBITS_1_5 LL_USART_STOPBITS_2

Return values

None

Definition at line 805 of file stm32f4xx_ll_usart.h.

◆ LL_USART_SetTransferDirection()

__STATIC_INLINE void LL_USART_SetTransferDirection	(	USART_TypeDef *	USARTx,
		uint32_t	TransferDirection
	)

Configure simultaneously enabled/disabled states of Transmitter and Receiver @rmtoll CR1 RE LL_USART_SetTransferDirection
CR1 TE LL_USART_SetTransferDirection.

Parameters

USARTx	USART Instance
TransferDirection	This parameter can be one of the following values: LL_USART_DIRECTION_NONE LL_USART_DIRECTION_RX LL_USART_DIRECTION_TX LL_USART_DIRECTION_TX_RX

Return values

None

Definition at line 497 of file stm32f4xx_ll_usart.h.

◆ LL_USART_SetWakeUpMethod()

__STATIC_INLINE void LL_USART_SetWakeUpMethod	(	USART_TypeDef *	USARTx,
		uint32_t	Method
	)

Set Receiver Wake Up method from Mute mode. @rmtoll CR1 WAKE LL_USART_SetWakeUpMethod.

Parameters

USARTx	USART Instance
Method	This parameter can be one of the following values: LL_USART_WAKEUP_IDLELINE LL_USART_WAKEUP_ADDRESSMARK

Return values

None

Definition at line 561 of file stm32f4xx_ll_usart.h.

Functions

Detailed Description

Function Documentation

◆ LL_USART_ConfigCharacter()

◆ LL_USART_ConfigClock()

◆ LL_USART_Disable()

◆ LL_USART_DisableCTSHWFlowCtrl()

◆ LL_USART_DisableDirectionRx()

◆ LL_USART_DisableDirectionTx()

◆ LL_USART_DisableOneBitSamp()

◆ LL_USART_DisableRTSHWFlowCtrl()

◆ LL_USART_DisableSCLKOutput()

◆ LL_USART_Enable()

◆ LL_USART_EnableCTSHWFlowCtrl()

◆ LL_USART_EnableDirectionRx()

◆ LL_USART_EnableDirectionTx()

◆ LL_USART_EnableOneBitSamp()

◆ LL_USART_EnableRTSHWFlowCtrl()

◆ LL_USART_EnableSCLKOutput()

◆ LL_USART_GetBaudRate()

◆ LL_USART_GetClockPhase()

◆ LL_USART_GetClockPolarity()

◆ LL_USART_GetDataWidth()

◆ LL_USART_GetHWFlowCtrl()

◆ LL_USART_GetLastClkPulseOutput()

◆ LL_USART_GetNodeAddress()

◆ LL_USART_GetOverSampling()

◆ LL_USART_GetParity()

◆ LL_USART_GetStopBitsLength()

◆ LL_USART_GetTransferDirection()

◆ LL_USART_GetWakeUpMethod()

◆ LL_USART_IsEnabled()

◆ LL_USART_IsEnabledOneBitSamp()

◆ LL_USART_IsEnabledSCLKOutput()

◆ LL_USART_SetBaudRate()

◆ LL_USART_SetClockPhase()

◆ LL_USART_SetClockPolarity()

◆ LL_USART_SetDataWidth()

◆ LL_USART_SetHWFlowCtrl()

◆ LL_USART_SetLastClkPulseOutput()

◆ LL_USART_SetNodeAddress()

◆ LL_USART_SetOverSampling()

◆ LL_USART_SetParity()

◆ LL_USART_SetStopBitsLength()

◆ LL_USART_SetTransferDirection()

◆ LL_USART_SetWakeUpMethod()