Configuration

Functions
__STATIC_INLINE void	LL_SPI_Enable (SPI_TypeDef *SPIx)
	Enable SPI peripheral.
__STATIC_INLINE void	LL_SPI_Disable (SPI_TypeDef *SPIx)
	Disable SPI peripheral.
__STATIC_INLINE uint32_t	LL_SPI_IsEnabled (SPI_TypeDef *SPIx)
	Check if SPI peripheral is enabled.
__STATIC_INLINE void	LL_SPI_SetMode (SPI_TypeDef *SPIx, uint32_t Mode)
	Set SPI operation mode to Master or Slave.
__STATIC_INLINE uint32_t	LL_SPI_GetMode (SPI_TypeDef *SPIx)
	Get SPI operation mode (Master or Slave)
__STATIC_INLINE void	LL_SPI_SetStandard (SPI_TypeDef *SPIx, uint32_t Standard)
	Set serial protocol used.
__STATIC_INLINE uint32_t	LL_SPI_GetStandard (SPI_TypeDef *SPIx)
	Get serial protocol used.
__STATIC_INLINE void	LL_SPI_SetClockPhase (SPI_TypeDef *SPIx, uint32_t ClockPhase)
	Set clock phase.
__STATIC_INLINE uint32_t	LL_SPI_GetClockPhase (SPI_TypeDef *SPIx)
	Get clock phase.
__STATIC_INLINE void	LL_SPI_SetClockPolarity (SPI_TypeDef *SPIx, uint32_t ClockPolarity)
	Set clock polarity.
__STATIC_INLINE uint32_t	LL_SPI_GetClockPolarity (SPI_TypeDef *SPIx)
	Get clock polarity.
__STATIC_INLINE void	LL_SPI_SetBaudRatePrescaler (SPI_TypeDef *SPIx, uint32_t BaudRate)
	Set baud rate prescaler.
__STATIC_INLINE uint32_t	LL_SPI_GetBaudRatePrescaler (SPI_TypeDef *SPIx)
	Get baud rate prescaler.
__STATIC_INLINE void	LL_SPI_SetTransferBitOrder (SPI_TypeDef *SPIx, uint32_t BitOrder)
	Set transfer bit order.
__STATIC_INLINE uint32_t	LL_SPI_GetTransferBitOrder (SPI_TypeDef *SPIx)
	Get transfer bit order.
__STATIC_INLINE void	LL_SPI_SetTransferDirection (SPI_TypeDef *SPIx, uint32_t TransferDirection)
	Set transfer direction mode.
__STATIC_INLINE uint32_t	LL_SPI_GetTransferDirection (SPI_TypeDef *SPIx)
	Get transfer direction mode.
__STATIC_INLINE void	LL_SPI_SetDataWidth (SPI_TypeDef *SPIx, uint32_t DataWidth)
	Set frame data width.
__STATIC_INLINE uint32_t	LL_SPI_GetDataWidth (SPI_TypeDef *SPIx)
	Get frame data width.
__STATIC_INLINE void	LL_SPI_SetRxFIFOThreshold (SPI_TypeDef *SPIx, uint32_t Threshold)
	Set threshold of RXFIFO that triggers an RXNE event.
__STATIC_INLINE uint32_t	LL_SPI_GetRxFIFOThreshold (SPI_TypeDef *SPIx)
	Get threshold of RXFIFO that triggers an RXNE event.

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Function Documentation

__STATIC_INLINE void LL_SPI_Disable

(

SPI_TypeDef *

SPIx

)

Disable SPI peripheral.

Note:

When disabling the SPI, follow the procedure described in the Reference Manual.

Reference Manual to LL API cross reference:

CR1 SPE LL_SPI_Disable

Parameters:

SPIx	SPI Instance

Return values:

None

Definition at line 387 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE void LL_SPI_Enable

(

SPI_TypeDef *

SPIx

)

Enable SPI peripheral.

Reference Manual to LL API cross reference:

CR1 SPE LL_SPI_Enable

Parameters:

SPIx	SPI Instance

Return values:

None

Definition at line 375 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE uint32_t LL_SPI_GetBaudRatePrescaler

(

SPI_TypeDef *

SPIx

)

Get baud rate prescaler.

Reference Manual to LL API cross reference:

CR1 BR LL_SPI_GetBaudRatePrescaler

Parameters:

SPIx	SPI Instance

Return values:

Returned

value can be one of the following values: LL_SPI_BAUDRATEPRESCALER_DIV2 LL_SPI_BAUDRATEPRESCALER_DIV4 LL_SPI_BAUDRATEPRESCALER_DIV8 LL_SPI_BAUDRATEPRESCALER_DIV16 LL_SPI_BAUDRATEPRESCALER_DIV32 LL_SPI_BAUDRATEPRESCALER_DIV64 LL_SPI_BAUDRATEPRESCALER_DIV128 LL_SPI_BAUDRATEPRESCALER_DIV256

Definition at line 554 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE uint32_t LL_SPI_GetClockPhase

(

SPI_TypeDef *

SPIx

)

Get clock phase.

Reference Manual to LL API cross reference:

CR1 CPHA LL_SPI_GetClockPhase

Parameters:

SPIx	SPI Instance

Return values:

Returned

value can be one of the following values: LL_SPI_PHASE_1EDGE LL_SPI_PHASE_2EDGE

Definition at line 485 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE uint32_t LL_SPI_GetClockPolarity

(

SPI_TypeDef *

SPIx

)

Get clock polarity.

Reference Manual to LL API cross reference:

CR1 CPOL LL_SPI_GetClockPolarity

Parameters:

SPIx	SPI Instance

Return values:

Returned

value can be one of the following values: LL_SPI_POLARITY_LOW LL_SPI_POLARITY_HIGH

Definition at line 514 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE uint32_t LL_SPI_GetDataWidth

(

SPI_TypeDef *

SPIx

)

Get frame data width.

Reference Manual to LL API cross reference:

CR2 DS LL_SPI_GetDataWidth

Parameters:

SPIx	SPI Instance

Return values:

Returned

value can be one of the following values: LL_SPI_DATAWIDTH_4BIT LL_SPI_DATAWIDTH_5BIT LL_SPI_DATAWIDTH_6BIT LL_SPI_DATAWIDTH_7BIT LL_SPI_DATAWIDTH_8BIT LL_SPI_DATAWIDTH_9BIT LL_SPI_DATAWIDTH_10BIT LL_SPI_DATAWIDTH_11BIT LL_SPI_DATAWIDTH_12BIT LL_SPI_DATAWIDTH_13BIT LL_SPI_DATAWIDTH_14BIT LL_SPI_DATAWIDTH_15BIT LL_SPI_DATAWIDTH_16BIT

Definition at line 668 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE uint32_t LL_SPI_GetMode

(

SPI_TypeDef *

SPIx

)

Get SPI operation mode (Master or Slave)

Reference Manual to LL API cross reference:

CR1 MSTR LL_SPI_GetMode
CR1 SSI LL_SPI_GetMode

Parameters:

SPIx	SPI Instance

Return values:

Returned

value can be one of the following values: LL_SPI_MODE_MASTER LL_SPI_MODE_SLAVE

Definition at line 428 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE uint32_t LL_SPI_GetRxFIFOThreshold

(

SPI_TypeDef *

SPIx

)

Get threshold of RXFIFO that triggers an RXNE event.

Reference Manual to LL API cross reference:

CR2 FRXTH LL_SPI_GetRxFIFOThreshold

Parameters:

SPIx	SPI Instance

Return values:

Returned

value can be one of the following values: LL_SPI_RX_FIFO_TH_HALF LL_SPI_RX_FIFO_TH_QUARTER

Definition at line 695 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE uint32_t LL_SPI_GetStandard

(

SPI_TypeDef *

SPIx

)

Get serial protocol used.

Reference Manual to LL API cross reference:

CR2 FRF LL_SPI_GetStandard

Parameters:

SPIx	SPI Instance

Return values:

Returned

value can be one of the following values: LL_SPI_PROTOCOL_MOTOROLA LL_SPI_PROTOCOL_TI

Definition at line 456 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE uint32_t LL_SPI_GetTransferBitOrder

(

SPI_TypeDef *

SPIx

)

Get transfer bit order.

Reference Manual to LL API cross reference:

CR1 LSBFIRST LL_SPI_GetTransferBitOrder

Parameters:

SPIx	SPI Instance

Return values:

Returned

value can be one of the following values: LL_SPI_LSB_FIRST LL_SPI_MSB_FIRST

Definition at line 582 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE uint32_t LL_SPI_GetTransferDirection

(

SPI_TypeDef *

SPIx

)

Get transfer direction mode.

Reference Manual to LL API cross reference:

CR1 RXONLY LL_SPI_GetTransferDirection
CR1 BIDIMODE LL_SPI_GetTransferDirection
CR1 BIDIOE LL_SPI_GetTransferDirection

Parameters:

SPIx	SPI Instance

Return values:

Returned

value can be one of the following values: LL_SPI_FULL_DUPLEX LL_SPI_SIMPLEX_RX LL_SPI_HALF_DUPLEX_RX LL_SPI_HALF_DUPLEX_TX

Definition at line 619 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE uint32_t LL_SPI_IsEnabled

(

SPI_TypeDef *

SPIx

)

Check if SPI peripheral is enabled.

Reference Manual to LL API cross reference:

CR1 SPE LL_SPI_IsEnabled

Parameters:

SPIx	SPI Instance

Return values:

State

of bit (1 or 0).

Definition at line 398 of file stm32l4xx_ll_spi.h.

Referenced by LL_SPI_Init().

__STATIC_INLINE void LL_SPI_SetBaudRatePrescaler	(	SPI_TypeDef *	SPIx,
		uint32_t	BaudRate
	)

Set baud rate prescaler.

Note:

These bits should not be changed when communication is ongoing. SPI BaudRate = fPCLK/Prescaler.

Reference Manual to LL API cross reference:

CR1 BR LL_SPI_SetBaudRatePrescaler

Parameters:

SPIx	SPI Instance
BaudRate	This parameter can be one of the following values: LL_SPI_BAUDRATEPRESCALER_DIV2 LL_SPI_BAUDRATEPRESCALER_DIV4 LL_SPI_BAUDRATEPRESCALER_DIV8 LL_SPI_BAUDRATEPRESCALER_DIV16 LL_SPI_BAUDRATEPRESCALER_DIV32 LL_SPI_BAUDRATEPRESCALER_DIV64 LL_SPI_BAUDRATEPRESCALER_DIV128 LL_SPI_BAUDRATEPRESCALER_DIV256

Return values:

None

Definition at line 535 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE void LL_SPI_SetClockPhase	(	SPI_TypeDef *	SPIx,
		uint32_t	ClockPhase
	)

Set clock phase.

Note:

This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode.

Reference Manual to LL API cross reference:

CR1 CPHA LL_SPI_SetClockPhase

Parameters:

SPIx	SPI Instance
ClockPhase	This parameter can be one of the following values: LL_SPI_PHASE_1EDGE LL_SPI_PHASE_2EDGE

Return values:

None

Definition at line 472 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE void LL_SPI_SetClockPolarity	(	SPI_TypeDef *	SPIx,
		uint32_t	ClockPolarity
	)

Set clock polarity.

Note:

This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode.

Reference Manual to LL API cross reference:

CR1 CPOL LL_SPI_SetClockPolarity

Parameters:

SPIx	SPI Instance
ClockPolarity	This parameter can be one of the following values: LL_SPI_POLARITY_LOW LL_SPI_POLARITY_HIGH

Return values:

None

Definition at line 501 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE void LL_SPI_SetDataWidth	(	SPI_TypeDef *	SPIx,
		uint32_t	DataWidth
	)

Set frame data width.

Reference Manual to LL API cross reference:

CR2 DS LL_SPI_SetDataWidth

Parameters:

SPIx	SPI Instance
DataWidth	This parameter can be one of the following values: LL_SPI_DATAWIDTH_4BIT LL_SPI_DATAWIDTH_5BIT LL_SPI_DATAWIDTH_6BIT LL_SPI_DATAWIDTH_7BIT LL_SPI_DATAWIDTH_8BIT LL_SPI_DATAWIDTH_9BIT LL_SPI_DATAWIDTH_10BIT LL_SPI_DATAWIDTH_11BIT LL_SPI_DATAWIDTH_12BIT LL_SPI_DATAWIDTH_13BIT LL_SPI_DATAWIDTH_14BIT LL_SPI_DATAWIDTH_15BIT LL_SPI_DATAWIDTH_16BIT

Return values:

None

Definition at line 644 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE void LL_SPI_SetMode	(	SPI_TypeDef *	SPIx,
		uint32_t	Mode
	)

Set SPI operation mode to Master or Slave.

Note:

This bit should not be changed when communication is ongoing.

Reference Manual to LL API cross reference:

CR1 MSTR LL_SPI_SetMode
CR1 SSI LL_SPI_SetMode

Parameters:

SPIx	SPI Instance
Mode	This parameter can be one of the following values: LL_SPI_MODE_MASTER LL_SPI_MODE_SLAVE

Return values:

None

Definition at line 414 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE void LL_SPI_SetRxFIFOThreshold	(	SPI_TypeDef *	SPIx,
		uint32_t	Threshold
	)

Set threshold of RXFIFO that triggers an RXNE event.

Reference Manual to LL API cross reference:

CR2 FRXTH LL_SPI_SetRxFIFOThreshold

Parameters:

SPIx	SPI Instance
Threshold	This parameter can be one of the following values: LL_SPI_RX_FIFO_TH_HALF LL_SPI_RX_FIFO_TH_QUARTER

Return values:

None

Definition at line 682 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE void LL_SPI_SetStandard	(	SPI_TypeDef *	SPIx,
		uint32_t	Standard
	)

Set serial protocol used.

Note:

This bit should be written only when SPI is disabled (SPE = 0) for correct operation.

Reference Manual to LL API cross reference:

CR2 FRF LL_SPI_SetStandard

Parameters:

SPIx	SPI Instance
Standard	This parameter can be one of the following values: LL_SPI_PROTOCOL_MOTOROLA LL_SPI_PROTOCOL_TI

Return values:

None

Definition at line 443 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE void LL_SPI_SetTransferBitOrder	(	SPI_TypeDef *	SPIx,
		uint32_t	BitOrder
	)

Set transfer bit order.

Note:

This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode.

Reference Manual to LL API cross reference:

CR1 LSBFIRST LL_SPI_SetTransferBitOrder

Parameters:

SPIx	SPI Instance
BitOrder	This parameter can be one of the following values: LL_SPI_LSB_FIRST LL_SPI_MSB_FIRST

Return values:

None

Definition at line 569 of file stm32l4xx_ll_spi.h.

__STATIC_INLINE void LL_SPI_SetTransferDirection	(	SPI_TypeDef *	SPIx,
		uint32_t	TransferDirection
	)

Set transfer direction mode.

Note:

For Half-Duplex mode, Rx Direction is set by default. In master mode, the MOSI pin is used and in slave mode, the MISO pin is used for Half-Duplex.

Reference Manual to LL API cross reference:

CR1 RXONLY LL_SPI_SetTransferDirection
CR1 BIDIMODE LL_SPI_SetTransferDirection
CR1 BIDIOE LL_SPI_SetTransferDirection

Parameters:

SPIx	SPI Instance
TransferDirection	This parameter can be one of the following values: LL_SPI_FULL_DUPLEX LL_SPI_SIMPLEX_RX LL_SPI_HALF_DUPLEX_RX LL_SPI_HALF_DUPLEX_TX

Return values:

None

Definition at line 602 of file stm32l4xx_ll_spi.h.