Configuration functions

Functions
__STATIC_INLINE void	ll_spi_enable_ss_toggle (ssi_regs_t *SPIx)
	Enable slave select toggle. More...
__STATIC_INLINE void	ll_spi_disable_ss_toggle (ssi_regs_t *SPIx)
	Disable slave select toggle. More...
__STATIC_INLINE uint32_t	ll_spi_is_enabled_ss_toggle (ssi_regs_t *SPIx)
	Check if slave select toggle is enabled. More...
__STATIC_INLINE void	ll_spi_set_frame_format (ssi_regs_t *SPIx, uint32_t frf)
	Set data frame format for transmitting/receiving the data. More...
__STATIC_INLINE uint32_t	ll_spi_get_frame_format (ssi_regs_t *SPIx)
	Get data frame format for transmitting/receiving the data. More...
__STATIC_INLINE void	ll_spi_set_data_size (ssi_regs_t *SPIx, uint32_t size)
	Set frame data size. More...
__STATIC_INLINE uint32_t	ll_spi_get_data_size (ssi_regs_t *SPIx)
	Get frame data size. More...
__STATIC_INLINE void	ll_spi_set_control_frame_size (ssi_regs_t *SPIx, uint32_t size)
	Set the length of the control word for the Microwire frame format. More...
__STATIC_INLINE uint32_t	ll_spi_get_control_frame_size (ssi_regs_t *SPIx)
	Get the length of the control word for the Microwire frame format. More...
__STATIC_INLINE void	ll_spi_enable_test_mode (ssi_regs_t *SPIx)
	Enable SPI test mode. More...
__STATIC_INLINE void	ll_spi_disable_test_mode (ssi_regs_t *SPIx)
	Disable SPI test mode. More...
__STATIC_INLINE uint32_t	ll_spi_is_enabled_test_mode (ssi_regs_t *SPIx)
	Check if SPI test mode is enabled. More...
__STATIC_INLINE void	ll_spi_enable_slave_out (ssi_regs_t *SPIx)
	Enable slave output. More...
__STATIC_INLINE void	ll_spi_disable_salve_out (ssi_regs_t *SPIx)
	Disable slave output. More...
__STATIC_INLINE uint32_t	ll_spi_is_enabled_slave_out (ssi_regs_t *SPIx)
	Check if slave output is enabled. More...
__STATIC_INLINE void	ll_spi_set_transfer_direction (ssi_regs_t *SPIx, uint32_t transfer_direction)
	Set transfer direction mode. More...
__STATIC_INLINE uint32_t	ll_spi_get_transfer_direction (ssi_regs_t *SPIx)
	Get transfer direction mode. More...
__STATIC_INLINE void	ll_spi_set_clock_polarity (ssi_regs_t *SPIx, uint32_t clock_polarity)
	Set clock polarity. More...
__STATIC_INLINE uint32_t	ll_spi_get_clock_polarity (ssi_regs_t *SPIx)
	Get clock polarity. More...
__STATIC_INLINE void	ll_spi_set_clock_phase (ssi_regs_t *SPIx, uint32_t clock_phase)
	Set clock phase. More...
__STATIC_INLINE uint32_t	ll_spi_get_clock_phase (ssi_regs_t *SPIx)
	Get clock phase. More...
__STATIC_INLINE void	ll_spi_set_standard (ssi_regs_t *SPIx, uint32_t standard)
	Set serial protocol used. More...
__STATIC_INLINE uint32_t	ll_spi_get_standard (ssi_regs_t *SPIx)
	Get serial protocol used. More...
__STATIC_INLINE void	ll_spi_set_receive_size (ssi_regs_t *SPIx, uint32_t size)
	Set the number of data frames to be continuously received. More...
__STATIC_INLINE uint32_t	ll_spi_get_receive_size (ssi_regs_t *SPIx)
	Get the number of data frames to be continuously received. More...
__STATIC_INLINE void	ll_spi_enable (ssi_regs_t *SPIx)
	Enable SPI peripheral. More...
__STATIC_INLINE void	ll_spi_disable (ssi_regs_t *SPIx)
	Disable SPI peripheral. More...
__STATIC_INLINE uint32_t	ll_spi_is_enabled (ssi_regs_t *SPIx)
	Check if SPI peripheral is enabled. More...
__STATIC_INLINE void	ll_spi_enable_micro_handshake (ssi_regs_t *SPIx)
	Enable Handshake in Microwire mode. More...
__STATIC_INLINE void	ll_spi_disable_micro_handshake (ssi_regs_t *SPIx)
	Disable Handshake in Microwire mode. More...
__STATIC_INLINE uint32_t	ll_spi_is_enabled_micro_handshake (ssi_regs_t *SPIx)
	Check if Handshake in Microwire mode is enabled. More...
__STATIC_INLINE void	ll_spi_set_micro_transfer_direction (ssi_regs_t *SPIx, uint32_t transfer_direction)
	Set transfer direction mode in Microwire mode. More...
__STATIC_INLINE uint32_t	ll_spi_get_micro_transfer_direction (ssi_regs_t *SPIx)
	Get transfer direction mode in Microwire mode. More...
__STATIC_INLINE void	ll_spi_set_micro_transfer_mode (ssi_regs_t *SPIx, uint32_t transfer_mode)
	Set transfer mode in Microwire mode. More...
__STATIC_INLINE uint32_t	ll_spi_get_micro_transfer_mode (ssi_regs_t *SPIx)
	Get transfer mode in Microwire mode. More...
__STATIC_INLINE void	ll_spi_enable_ss (ssi_regs_t *SPIx, uint32_t ss)
	Enable slave select. More...
__STATIC_INLINE void	ll_spi_disable_ss (ssi_regs_t *SPIx, uint32_t ss)
	Disable slave select. More...
__STATIC_INLINE uint32_t	ll_spi_is_enabled_ss (ssi_regs_t *SPIx, uint32_t ss)
	Check if slave select is enabled. More...
__STATIC_INLINE void	ll_spi_set_baud_rate_prescaler (ssi_regs_t *SPIx, uint32_t baud_rate)
	Set baud rate prescaler. More...
__STATIC_INLINE uint32_t	ll_spi_get_baud_rate_prescaler (ssi_regs_t *SPIx)
	Get baud rate prescaler. More...
__STATIC_INLINE void	ll_spi_set_tx_fifo_threshold (ssi_regs_t *SPIx, uint32_t threshold)
	Set threshold of TXFIFO that triggers an TXE event. More...
__STATIC_INLINE uint32_t	ll_spi_get_tx_fifo_threshold (ssi_regs_t *SPIx)
	Get threshold of TXFIFO that triggers an TXE event. More...
__STATIC_INLINE void	ll_spi_set_rx_fifo_threshold (ssi_regs_t *SPIx, uint32_t threshold)
	Set threshold of RXFIFO that triggers an RXNE event. More...
__STATIC_INLINE uint32_t	ll_spi_get_rx_fifo_threshold (ssi_regs_t *SPIx)
	Get threshold of RXFIFO that triggers an RXNE event. More...
__STATIC_INLINE uint32_t	ll_spi_get_tx_fifo_level (ssi_regs_t *SPIx)
	Get FIFO Transmission Level. More...
__STATIC_INLINE uint32_t	ll_spi_get_rx_fifo_level (ssi_regs_t *SPIx)
	Get FIFO reception Level. More...
__STATIC_INLINE uint32_t	ll_spi_get_id_code (ssi_regs_t *SPIx)
	Get ID code. More...
__STATIC_INLINE uint32_t	ll_spi_get_version (ssi_regs_t *SPIx)
	Get IP version. More...

Detailed Description

Function Documentation

ll_spi_disable()

__STATIC_INLINE void ll_spi_disable

(

ssi_regs_t *

SPIx

)

Disable SPI peripheral.

Note

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

Register	BitsName
SSI_EN	EN

Parameters

SPIx	SPI instance

Return values

None

ll_spi_disable_micro_handshake()

__STATIC_INLINE void ll_spi_disable_micro_handshake

(

ssi_regs_t *

SPIx

)

Disable Handshake in Microwire mode.

Register	BitsName
MWC	MHS

Parameters

SPIx	SPI instance

Return values

None

ll_spi_disable_salve_out()

__STATIC_INLINE void ll_spi_disable_salve_out

(

ssi_regs_t *

SPIx

)

Disable slave output.

Register	BitsName
CTRL0	SLVOE

Parameters

SPIx	SPI instance

Return values

None

ll_spi_disable_ss()

__STATIC_INLINE void ll_spi_disable_ss	(	ssi_regs_t *	SPIx,
		uint32_t	ss
	)

Disable slave select.

Register	BitsName
SE	SLAVE1
SE	SLAVE0

Parameters

SPIx	SPI instance
ss	This parameter can be one of the following values: LL_SSI_SLAVE1 LL_SSI_SLAVE0

Return values

None

ll_spi_disable_ss_toggle()

__STATIC_INLINE void ll_spi_disable_ss_toggle

(

ssi_regs_t *

SPIx

)

Disable slave select toggle.

Note

This bit should not be changed when communication is ongoing.

Register	BitsName
CTRL0	SSTEN

Parameters

SPIx	SPI instance

Return values

None

ll_spi_disable_test_mode()

__STATIC_INLINE void ll_spi_disable_test_mode

(

ssi_regs_t *

SPIx

)

Disable SPI test mode.

Register	BitsName
CTRL0	SRL

Parameters

SPIx	SPI instance

Return values

None

ll_spi_enable()

__STATIC_INLINE void ll_spi_enable

(

ssi_regs_t *

SPIx

)

Enable SPI peripheral.

Register	BitsName
SSI_EN	EN

Parameters

SPIx	SPI instance

Return values

None

ll_spi_enable_micro_handshake()

__STATIC_INLINE void ll_spi_enable_micro_handshake

(

ssi_regs_t *

SPIx

)

Enable Handshake in Microwire mode.

Register	BitsName
MWC	MHS

Parameters

SPIx	SPI instance

Return values

None

ll_spi_enable_slave_out()

__STATIC_INLINE void ll_spi_enable_slave_out

(

ssi_regs_t *

SPIx

)

Enable slave output.

Register	BitsName
CTRL0	SLVOE

Parameters

SPIx	SPI instance

Return values

None

ll_spi_enable_ss()

__STATIC_INLINE void ll_spi_enable_ss	(	ssi_regs_t *	SPIx,
		uint32_t	ss
	)

Enable slave select.

Register	BitsName
SE	SLAVE1
SE	SLAVE0

Parameters

SPIx	SPI instance
ss	This parameter can be one of the following values: LL_SSI_SLAVE1 LL_SSI_SLAVE0

Return values

None

ll_spi_enable_ss_toggle()

__STATIC_INLINE void ll_spi_enable_ss_toggle

(

ssi_regs_t *

SPIx

)

Enable slave select toggle.

Note

This bit should not be changed when communication is ongoing.

Register	BitsName
CTRL0	SSTEN

Parameters

SPIx	SPI instance

Return values

None

ll_spi_enable_test_mode()

__STATIC_INLINE void ll_spi_enable_test_mode

(

ssi_regs_t *

SPIx

)

Enable SPI test mode.

Register	BitsName
CTRL0	SRL

Parameters

SPIx	SPI instance

Return values

None

ll_spi_get_baud_rate_prescaler()

__STATIC_INLINE uint32_t ll_spi_get_baud_rate_prescaler

(

ssi_regs_t *

SPIx

)

Get baud rate prescaler.

Register	BitsName
BAUD	SCKDIV

Parameters

SPIx	SPI instance

Return values

Returned

value can be one even value between 2 and 65534.

ll_spi_get_clock_phase()

__STATIC_INLINE uint32_t ll_spi_get_clock_phase

(

ssi_regs_t *

SPIx

)

Get clock phase.

Register	BitsName
CTRL0	SCPHA

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: LL_SSI_SCPHA_1EDGE LL_SSI_SCPHA_2EDGE

ll_spi_get_clock_polarity()

__STATIC_INLINE uint32_t ll_spi_get_clock_polarity

(

ssi_regs_t *

SPIx

)

Get clock polarity.

Register	BitsName
CTRL0	SCPOL

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: LL_SSI_SCPOL_LOW LL_SSI_SCPOL_HIGH

ll_spi_get_control_frame_size()

__STATIC_INLINE uint32_t ll_spi_get_control_frame_size

(

ssi_regs_t *

SPIx

)

Get the length of the control word for the Microwire frame format.

Note

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

Register	BitsName
CTRL0	CFS

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: LL_SSI_MW_CMDSIZE_1BIT LL_SSI_MW_CMDSIZE_2BIT LL_SSI_MW_CMDSIZE_3BIT LL_SSI_MW_CMDSIZE_4BIT LL_SSI_MW_CMDSIZE_5BIT LL_SSI_MW_CMDSIZE_6BIT LL_SSI_MW_CMDSIZE_7BIT LL_SSI_MW_CMDSIZE_8BIT LL_SSI_MW_CMDSIZE_9BIT LL_SSI_MW_CMDSIZE_10BIT LL_SSI_MW_CMDSIZE_11BIT LL_SSI_MW_CMDSIZE_12BIT LL_SSI_MW_CMDSIZE_13BIT LL_SSI_MW_CMDSIZE_14BIT LL_SSI_MW_CMDSIZE_15BIT LL_SSI_MW_CMDSIZE_16BIT

ll_spi_get_data_size()

__STATIC_INLINE uint32_t ll_spi_get_data_size

(

ssi_regs_t *

SPIx

)

Get frame data size.

Register	BitsName
CTRL0	DFS32

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: LL_SSI_DATASIZE_4BIT LL_SSI_DATASIZE_5BIT LL_SSI_DATASIZE_6BIT LL_SSI_DATASIZE_7BIT LL_SSI_DATASIZE_8BIT LL_SSI_DATASIZE_9BIT LL_SSI_DATASIZE_10BIT LL_SSI_DATASIZE_11BIT LL_SSI_DATASIZE_12BIT LL_SSI_DATASIZE_13BIT LL_SSI_DATASIZE_14BIT LL_SSI_DATASIZE_15BIT LL_SSI_DATASIZE_16BIT LL_SSI_DATASIZE_17BIT LL_SSI_DATASIZE_18BIT LL_SSI_DATASIZE_19BIT LL_SSI_DATASIZE_20BIT LL_SSI_DATASIZE_21BIT LL_SSI_DATASIZE_22BIT LL_SSI_DATASIZE_23BIT LL_SSI_DATASIZE_24BIT LL_SSI_DATASIZE_25BIT LL_SSI_DATASIZE_26BIT LL_SSI_DATASIZE_27BIT LL_SSI_DATASIZE_28BIT LL_SSI_DATASIZE_29BIT LL_SSI_DATASIZE_30BIT LL_SSI_DATASIZE_31BIT LL_SSI_DATASIZE_32BIT

ll_spi_get_frame_format()

__STATIC_INLINE uint32_t ll_spi_get_frame_format

(

ssi_regs_t *

SPIx

)

Get data frame format for transmitting/receiving the data.

Note

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

Register	BitsName
CTRL0	SPIFRF

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: LL_SSI_FRF_SPI LL_SSI_FRF_DUALSPI LL_SSI_FRF_QUADSPI

ll_spi_get_id_code()

__STATIC_INLINE uint32_t ll_spi_get_id_code

(

ssi_regs_t *

SPIx

)

Get ID code.

Register	BitsName
IDCODE	ID

Parameters

SPIx	SPI instance

Return values

Returned

value is const.

ll_spi_get_micro_transfer_direction()

__STATIC_INLINE uint32_t ll_spi_get_micro_transfer_direction

(

ssi_regs_t *

SPIx

)

Get transfer direction mode in Microwire mode.

Note

This bit should not be changed when communication is ongoing.

Register	BitsName
MWC	MDD

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: LL_SSI_MICROWIRE_RX LL_SSI_MICROWIRE_TX

ll_spi_get_micro_transfer_mode()

__STATIC_INLINE uint32_t ll_spi_get_micro_transfer_mode

(

ssi_regs_t *

SPIx

)

Get transfer mode in Microwire mode.

Note

This bit should not be changed when communication is ongoing.

Register	BitsName
MWC	MWMOD

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: LL_SSI_MICROWIRE_NON_SEQUENTIAL LL_SSI_MICROWIRE_SEQUENTIAL

ll_spi_get_receive_size()

__STATIC_INLINE uint32_t ll_spi_get_receive_size

(

ssi_regs_t *

SPIx

)

Get the number of data frames to be continuously received.

Note

These bits should not be changed when communication is ongoing. This bits are effect when TMOD = 2b10 or 2b11. This bits are not effect in SPIS.

Register	BitsName
CTRL1	NDF

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: 0 ~ 65535

ll_spi_get_rx_fifo_level()

__STATIC_INLINE uint32_t ll_spi_get_rx_fifo_level

(

ssi_regs_t *

SPIx

)

Get FIFO reception Level.

Register	BitsName
RXFL	RXTFL

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: 0 ~ 8

ll_spi_get_rx_fifo_threshold()

__STATIC_INLINE uint32_t ll_spi_get_rx_fifo_threshold

(

ssi_regs_t *

SPIx

)

Get threshold of RXFIFO that triggers an RXNE event.

Register	BitsName
RXFTL	RFT

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: 0 ~ 7

ll_spi_get_standard()

__STATIC_INLINE uint32_t ll_spi_get_standard

(

ssi_regs_t *

SPIx

)

Get serial protocol used.

Register	BitsName
CTRL0	FRF

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: LL_SSI_PROTOCOL_MOTOROLA LL_SSI_PROTOCOL_TI LL_SSI_PROTOCOL_MICROWIRE

ll_spi_get_transfer_direction()

__STATIC_INLINE uint32_t ll_spi_get_transfer_direction

(

ssi_regs_t *

SPIx

)

Get transfer direction mode.

Register	BitsName
CTRL0	TMOD

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: LL_SSI_FULL_DUPLEX LL_SSI_SIMPLEX_TX LL_SSI_SIMPLEX_RX LL_SSI_READ_EEPROM

ll_spi_get_tx_fifo_level()

__STATIC_INLINE uint32_t ll_spi_get_tx_fifo_level

(

ssi_regs_t *

SPIx

)

Get FIFO Transmission Level.

Register	BitsName
TXFL	TXTFL

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: 0 ~ 8

ll_spi_get_tx_fifo_threshold()

__STATIC_INLINE uint32_t ll_spi_get_tx_fifo_threshold

(

ssi_regs_t *

SPIx

)

Get threshold of TXFIFO that triggers an TXE event.

Register	BitsName
TXFTL	TFT

Parameters

SPIx	SPI instance

Return values

Returned

value can be one of the following values: 0 ~ 7

ll_spi_get_version()

__STATIC_INLINE uint32_t ll_spi_get_version

(

ssi_regs_t *

SPIx

)

Get IP version.

Register	BitsName
COMP	VERSION

Parameters

SPIx	SPI instance

Return values

Returned

value is const.

ll_spi_is_enabled()

__STATIC_INLINE uint32_t ll_spi_is_enabled

(

ssi_regs_t *

SPIx

)

Check if SPI peripheral is enabled.

Register	BitsName
SSI_EN	EN

Parameters

SPIx	SPI instance

Return values

State

of bit (1 or 0).

ll_spi_is_enabled_micro_handshake()

__STATIC_INLINE uint32_t ll_spi_is_enabled_micro_handshake

(

ssi_regs_t *

SPIx

)

Check if Handshake in Microwire mode is enabled.

Register	BitsName
MWC	MHS

Parameters

SPIx	SPI instance

Return values

State

of bit (1 or 0).

ll_spi_is_enabled_slave_out()

__STATIC_INLINE uint32_t ll_spi_is_enabled_slave_out

(

ssi_regs_t *

SPIx

)

Check if slave output is enabled.

Register	BitsName
CTRL0	SLVOE

Parameters

SPIx	SPI instance

Return values

State

of bit (1 or 0).

ll_spi_is_enabled_ss()

__STATIC_INLINE uint32_t ll_spi_is_enabled_ss	(	ssi_regs_t *	SPIx,
		uint32_t	ss
	)

Check if slave select is enabled.

Register	BitsName
SE	SLAVE1
SE	SLAVE0

Parameters

SPIx	SPI instance
ss	This parameter can be one of the following values: LL_SSI_SLAVE1 LL_SSI_SLAVE0

Return values

State

of bit (1 or 0).

ll_spi_is_enabled_ss_toggle()

__STATIC_INLINE uint32_t ll_spi_is_enabled_ss_toggle

(

ssi_regs_t *

SPIx

)

Check if slave select toggle is enabled.

Note

This bit should not be changed when communication is ongoing.

Register	BitsName
CTRL0	SSTEN

Parameters

SPIx	SPI instance

Return values

State

of bit (1 or 0).

ll_spi_is_enabled_test_mode()

__STATIC_INLINE uint32_t ll_spi_is_enabled_test_mode

(

ssi_regs_t *

SPIx

)

Check if SPI test mode is enabled.

Register	BitsName
CTRL0	SRL

Parameters

SPIx	SPI instance

Return values

State

of bit (1 or 0).

ll_spi_set_baud_rate_prescaler()

__STATIC_INLINE void ll_spi_set_baud_rate_prescaler	(	ssi_regs_t *	SPIx,
		uint32_t	baud_rate
	)

Set baud rate prescaler.

Note

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

Register	BitsName
BAUD	SCKDIV

Parameters

SPIx	SPI instance
baud_rate	This parameter can be one even value between 2 and 65534, if the value is 0, the SCLK is disable.

Return values

None

ll_spi_set_clock_phase()

__STATIC_INLINE void ll_spi_set_clock_phase	(	ssi_regs_t *	SPIx,
		uint32_t	clock_phase
	)

Set clock phase.

Note

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

Register	BitsName
CTRL0	SCPHA

Parameters

SPIx	SPI instance
clock_phase	This parameter can be one of the following values: LL_SSI_SCPHA_1EDGE LL_SSI_SCPHA_2EDGE

Return values

None

ll_spi_set_clock_polarity()

__STATIC_INLINE void ll_spi_set_clock_polarity	(	ssi_regs_t *	SPIx,
		uint32_t	clock_polarity
	)

Set clock polarity.

Note

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

Register	BitsName
CTRL0	SCPOL

Parameters

SPIx	SPI instance
clock_polarity	This parameter can be one of the following values: LL_SSI_SCPOL_LOW LL_SSI_SCPOL_HIGH

Return values

None

ll_spi_set_control_frame_size()

__STATIC_INLINE void ll_spi_set_control_frame_size	(	ssi_regs_t *	SPIx,
		uint32_t	size
	)

Set the length of the control word for the Microwire frame format.

Note

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

Register	BitsName
CTRL0	CFS

Parameters

SPIx

SPI instance

size

This parameter can be one of the following values: LL_SSI_MW_CMDSIZE_1BIT LL_SSI_MW_CMDSIZE_2BIT LL_SSI_MW_CMDSIZE_3BIT LL_SSI_MW_CMDSIZE_4BIT LL_SSI_MW_CMDSIZE_5BIT LL_SSI_MW_CMDSIZE_6BIT LL_SSI_MW_CMDSIZE_7BIT LL_SSI_MW_CMDSIZE_8BIT LL_SSI_MW_CMDSIZE_9BIT LL_SSI_MW_CMDSIZE_10BIT LL_SSI_MW_CMDSIZE_11BIT LL_SSI_MW_CMDSIZE_12BIT LL_SSI_MW_CMDSIZE_13BIT LL_SSI_MW_CMDSIZE_14BIT LL_SSI_MW_CMDSIZE_15BIT LL_SSI_MW_CMDSIZE_16BIT

Return values

None

ll_spi_set_data_size()

__STATIC_INLINE void ll_spi_set_data_size	(	ssi_regs_t *	SPIx,
		uint32_t	size
	)

Set frame data size.

Register	BitsName
CTRL0	DFS32

Parameters

SPIx

SPI instance

size

This parameter can be one of the following values: LL_SSI_DATASIZE_4BIT LL_SSI_DATASIZE_5BIT LL_SSI_DATASIZE_6BIT LL_SSI_DATASIZE_7BIT LL_SSI_DATASIZE_8BIT LL_SSI_DATASIZE_9BIT LL_SSI_DATASIZE_10BIT LL_SSI_DATASIZE_11BIT LL_SSI_DATASIZE_12BIT LL_SSI_DATASIZE_13BIT LL_SSI_DATASIZE_14BIT LL_SSI_DATASIZE_15BIT LL_SSI_DATASIZE_16BIT LL_SSI_DATASIZE_17BIT LL_SSI_DATASIZE_18BIT LL_SSI_DATASIZE_19BIT LL_SSI_DATASIZE_20BIT LL_SSI_DATASIZE_21BIT LL_SSI_DATASIZE_22BIT LL_SSI_DATASIZE_23BIT LL_SSI_DATASIZE_24BIT LL_SSI_DATASIZE_25BIT LL_SSI_DATASIZE_26BIT LL_SSI_DATASIZE_27BIT LL_SSI_DATASIZE_28BIT LL_SSI_DATASIZE_29BIT LL_SSI_DATASIZE_30BIT LL_SSI_DATASIZE_31BIT LL_SSI_DATASIZE_32BIT

Return values

None

ll_spi_set_frame_format()

__STATIC_INLINE void ll_spi_set_frame_format	(	ssi_regs_t *	SPIx,
		uint32_t	frf
	)

Set data frame format for transmitting/receiving the data.

Note

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

Register	BitsName
CTRL0	SPIFRF

Parameters

SPIx	SPI instance
frf	This parameter can be one of the following values: LL_SSI_FRF_SPI LL_SSI_FRF_DUALSPI LL_SSI_FRF_QUADSPI

Return values

None

ll_spi_set_micro_transfer_direction()

__STATIC_INLINE void ll_spi_set_micro_transfer_direction	(	ssi_regs_t *	SPIx,
		uint32_t	transfer_direction
	)

Set transfer direction mode in Microwire mode.

Note

This bit should not be changed when communication is ongoing.

Register	BitsName
MWC	MDD

Parameters

SPIx	SPI instance
transfer_direction	This parameter can be one of the following values: LL_SSI_MICROWIRE_RX LL_SSI_MICROWIRE_TX

Return values

None

ll_spi_set_micro_transfer_mode()

__STATIC_INLINE void ll_spi_set_micro_transfer_mode	(	ssi_regs_t *	SPIx,
		uint32_t	transfer_mode
	)

Set transfer mode in Microwire mode.

Note

This bit should not be changed when communication is ongoing.

Register	BitsName
MWC	MWMOD

Parameters

SPIx	SPI instance
transfer_mode	This parameter can be one of the following values: LL_SSI_MICROWIRE_NON_SEQUENTIAL LL_SSI_MICROWIRE_SEQUENTIAL

Return values

None

ll_spi_set_receive_size()

__STATIC_INLINE void ll_spi_set_receive_size	(	ssi_regs_t *	SPIx,
		uint32_t	size
	)

Set the number of data frames to be continuously received.

Note

These bits should not be changed when communication is ongoing. This bits are effect when TMOD = 2b10 or 2b11. This bits are not effect in SPIS.

Register	BitsName
CTRL1	NDF

Parameters

SPIx	SPI instance
size	This parameter can be one of the following values: 0 ~ 65535

Return values

None

ll_spi_set_rx_fifo_threshold()

__STATIC_INLINE void ll_spi_set_rx_fifo_threshold	(	ssi_regs_t *	SPIx,
		uint32_t	threshold
	)

Set threshold of RXFIFO that triggers an RXNE event.

Register	BitsName
RXFTL	RFT

Parameters

SPIx	SPI instance
threshold	This parameter can be one of the following values: 0 ~ 7

Return values

None

ll_spi_set_standard()

__STATIC_INLINE void ll_spi_set_standard	(	ssi_regs_t *	SPIx,
		uint32_t	standard
	)

Set serial protocol used.

Note

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

Register	BitsName
CTRL0	FRF

Parameters

SPIx	SPI instance
standard	This parameter can be one of the following values: LL_SSI_PROTOCOL_MOTOROLA LL_SSI_PROTOCOL_TI LL_SSI_PROTOCOL_MICROWIRE

Return values

None

ll_spi_set_transfer_direction()

__STATIC_INLINE void ll_spi_set_transfer_direction	(	ssi_regs_t *	SPIx,
		uint32_t	transfer_direction
	)

Set transfer direction mode.

Register	BitsName
CTRL0	TMOD

Parameters

SPIx	SPI instance
transfer_direction	This parameter can be one of the following values: LL_SSI_FULL_DUPLEX LL_SSI_SIMPLEX_TX LL_SSI_SIMPLEX_RX LL_SSI_READ_EEPROM

Return values

None

ll_spi_set_tx_fifo_threshold()

__STATIC_INLINE void ll_spi_set_tx_fifo_threshold	(	ssi_regs_t *	SPIx,
		uint32_t	threshold
	)

Set threshold of TXFIFO that triggers an TXE event.

Register	BitsName
TXFTL	TFT

Parameters

SPIx	SPI instance
threshold	This parameter can be one of the following values: 0 ~ 7

Return values

None