Hardware access layer for accessing the SPIS peripheral. More...

Macros
#define	NRF_SPIS_PIN_NOT_CONNECTED 0xFFFFFFFF
	This value can be used as a parameter for the nrf_spis_pins_set function to specify that a given SPI signal (SCK, MOSI, or MISO) shall not be connected to a physical pin.

Enumerations
enum	nrf_spis_task_t { NRF_SPIS_TASK_ACQUIRE = offsetof(NRF_SPIS_Type, TASKS_ACQUIRE), NRF_SPIS_TASK_RELEASE = offsetof(NRF_SPIS_Type, TASKS_RELEASE) }
	SPIS tasks. More...

enum	nrf_spis_event_t { NRF_SPIS_EVENT_END = offsetof(NRF_SPIS_Type, EVENTS_END), NRF_SPIS_EVENT_ACQUIRED = offsetof(NRF_SPIS_Type, EVENTS_ACQUIRED) }
	SPIS events. More...

enum	nrf_spis_short_mask_t { NRF_SPIS_SHORT_END_ACQUIRE = SPIS_SHORTS_END_ACQUIRE_Msk }
	SPIS shortcuts. More...

enum	nrf_spis_int_mask_t { NRF_SPIS_INT_END_MASK = SPIS_INTENSET_END_Msk, NRF_SPIS_INT_ACQUIRED_MASK = SPIS_INTENSET_ACQUIRED_Msk }
	SPIS interrupts. More...

enum	nrf_spis_mode_t { NRF_SPIS_MODE_0 , NRF_SPIS_MODE_1 , NRF_SPIS_MODE_2 , NRF_SPIS_MODE_3 }
	SPI modes. More...

enum	nrf_spis_bit_order_t { NRF_SPIS_BIT_ORDER_MSB_FIRST = SPIS_CONFIG_ORDER_MsbFirst, NRF_SPIS_BIT_ORDER_LSB_FIRST = SPIS_CONFIG_ORDER_LsbFirst }
	SPI bit orders. More...

enum	nrf_spis_semstat_t { NRF_SPIS_SEMSTAT_FREE = 0, NRF_SPIS_SEMSTAT_CPU = 1, NRF_SPIS_SEMSTAT_SPIS = 2, NRF_SPIS_SEMSTAT_CPUPENDING = 3 }
	SPI semaphore status. More...

enum	nrf_spis_status_mask_t { NRF_SPIS_STATUS_OVERREAD = SPIS_STATUS_OVERREAD_Msk, NRF_SPIS_STATUS_OVERFLOW = SPIS_STATUS_OVERFLOW_Msk }
	SPIS status. More...

Functions
__STATIC_INLINE void	nrf_spis_task_trigger (NRF_SPIS_Type *p_reg, nrf_spis_task_t spis_task)
	Function for activating a specific SPIS task. More...

__STATIC_INLINE uint32_t	nrf_spis_task_address_get (NRF_SPIS_Type const *p_reg, nrf_spis_task_t spis_task)
	Function for getting the address of a specific SPIS task register. More...

__STATIC_INLINE void	nrf_spis_event_clear (NRF_SPIS_Type *p_reg, nrf_spis_event_t spis_event)
	Function for clearing a specific SPIS event. More...

__STATIC_INLINE bool	nrf_spis_event_check (NRF_SPIS_Type const *p_reg, nrf_spis_event_t spis_event)
	Function for checking the state of a specific SPIS event. More...

__STATIC_INLINE uint32_t	nrf_spis_event_address_get (NRF_SPIS_Type const *p_reg, nrf_spis_event_t spis_event)
	Function for getting the address of a specific SPIS event register. More...

__STATIC_INLINE void	nrf_spis_shorts_enable (NRF_SPIS_Type *p_reg, uint32_t spis_shorts_mask)
	Function for enabling specified shortcuts. More...

__STATIC_INLINE void	nrf_spis_shorts_disable (NRF_SPIS_Type *p_reg, uint32_t spis_shorts_mask)
	Function for disabling specified shortcuts. More...

__STATIC_INLINE void	nrf_spis_int_enable (NRF_SPIS_Type *p_reg, uint32_t spis_int_mask)
	Function for enabling specified interrupts. More...

__STATIC_INLINE void	nrf_spis_int_disable (NRF_SPIS_Type *p_reg, uint32_t spis_int_mask)
	Function for disabling specified interrupts. More...

__STATIC_INLINE bool	nrf_spis_int_enable_check (NRF_SPIS_Type const *p_reg, nrf_spis_int_mask_t spis_int)
	Function for retrieving the state of a given interrupt. More...

__STATIC_INLINE void	nrf_spis_enable (NRF_SPIS_Type *p_reg)
	Function for enabling the SPIS peripheral. More...

__STATIC_INLINE void	nrf_spis_disable (NRF_SPIS_Type *p_reg)
	Function for disabling the SPIS peripheral. More...

__STATIC_INLINE nrf_spis_semstat_t	nrf_spis_semaphore_status_get (NRF_SPIS_Type *p_reg)
	Function for retrieving the SPIS semaphore status. More...

__STATIC_INLINE nrf_spis_status_mask_t	nrf_spis_status_get (NRF_SPIS_Type *p_reg)
	Function for retrieving the SPIS status. More...

__STATIC_INLINE void	nrf_spis_pins_set (NRF_SPIS_Type *p_reg, uint32_t sck_pin, uint32_t mosi_pin, uint32_t miso_pin, uint32_t csn_pin)
	Function for configuring SPIS pins. More...

__STATIC_INLINE void	nrf_spis_tx_buffer_set (NRF_SPIS_Type p_reg, uint8_t const p_buffer, uint8_t length)
	Function for setting the transmit buffer. More...

__STATIC_INLINE void	nrf_spis_rx_buffer_set (NRF_SPIS_Type p_reg, uint8_t p_buffer, uint8_t length)
	Function for setting the receive buffer. More...

__STATIC_INLINE uint8_t	nrf_spis_tx_amount_get (NRF_SPIS_Type const *p_reg)
	Function for getting the number of bytes transmitted in the last granted transaction. More...

__STATIC_INLINE uint8_t	nrf_spis_rx_amount_get (NRF_SPIS_Type const *p_reg)
	Function for getting the number of bytes received in the last granted transaction. More...

__STATIC_INLINE void	nrf_spis_configure (NRF_SPIS_Type *p_reg, nrf_spis_mode_t spi_mode, nrf_spis_bit_order_t spi_bit_order)
	Function for setting the SPI configuration. More...

__STATIC_INLINE void	nrf_spis_def_set (NRF_SPIS_Type *p_reg, uint8_t def)
	Function for setting the default character. More...

__STATIC_INLINE void	nrf_spis_orc_set (NRF_SPIS_Type *p_reg, uint8_t orc)
	Function for setting the over-read character. More...

Detailed Description

Hardware access layer for accessing the SPIS peripheral.

Enumeration Type Documentation

enum nrf_spis_bit_order_t

SPI bit orders.

Enumerator
NRF_SPIS_BIT_ORDER_MSB_FIRST	Most significant bit shifted out first.
NRF_SPIS_BIT_ORDER_LSB_FIRST	Least significant bit shifted out first.

enum nrf_spis_event_t

SPIS events.

Enumerator
NRF_SPIS_EVENT_END	Granted transaction completed.
NRF_SPIS_EVENT_ACQUIRED	Semaphore acquired.

enum nrf_spis_int_mask_t

SPIS interrupts.

Enumerator
NRF_SPIS_INT_END_MASK	Interrupt on END event.
NRF_SPIS_INT_ACQUIRED_MASK	Interrupt on ACQUIRED event.

enum nrf_spis_mode_t

SPI modes.

Enumerator
NRF_SPIS_MODE_0	SCK active high, sample on leading edge of clock.
NRF_SPIS_MODE_1	SCK active high, sample on trailing edge of clock.
NRF_SPIS_MODE_2	SCK active low, sample on leading edge of clock.
NRF_SPIS_MODE_3	SCK active low, sample on trailing edge of clock.

enum nrf_spis_semstat_t

SPI semaphore status.

Enumerator
NRF_SPIS_SEMSTAT_FREE	Semaphore is free.
NRF_SPIS_SEMSTAT_CPU	Semaphore is assigned to the CPU.
NRF_SPIS_SEMSTAT_SPIS	Semaphore is assigned to the SPI slave.
NRF_SPIS_SEMSTAT_CPUPENDING	Semaphore is assigned to the SPI, but a handover to the CPU is pending.

enum nrf_spis_short_mask_t

SPIS shortcuts.

Enumerator
NRF_SPIS_SHORT_END_ACQUIRE	Shortcut between END event and ACQUIRE task.

enum nrf_spis_status_mask_t

SPIS status.

Enumerator
NRF_SPIS_STATUS_OVERREAD	TX buffer over-read detected and prevented.
NRF_SPIS_STATUS_OVERFLOW	RX buffer overflow detected and prevented.

enum nrf_spis_task_t

SPIS tasks.

Enumerator
NRF_SPIS_TASK_ACQUIRE	Acquire SPI semaphore.
NRF_SPIS_TASK_RELEASE	Release SPI semaphore, enabling the SPI slave to acquire it.

Function Documentation

__STATIC_INLINE void nrf_spis_configure	(	NRF_SPIS_Type *	p_reg ,
		nrf_spis_mode_t	spi_mode ,
		nrf_spis_bit_order_t	spi_bit_order
	)

Function for setting the SPI configuration.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	spi_mode	SPI mode.
[in]	spi_bit_order	SPI bit order.

__STATIC_INLINE void nrf_spis_def_set	(	NRF_SPIS_Type *	p_reg ,
		uint8_t	def
	)

Function for setting the default character.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	def	Default character that is clocked out in case of an overflow of the RXD buffer.

__STATIC_INLINE void nrf_spis_disable ( NRF_SPIS_Type * p_reg )

Function for disabling the SPIS peripheral.

Parameters

[in] p_reg Pointer to the peripheral registers structure.

__STATIC_INLINE void nrf_spis_enable ( NRF_SPIS_Type * p_reg )

Function for enabling the SPIS peripheral.

Parameters

[in] p_reg Pointer to the peripheral registers structure.

__STATIC_INLINE uint32_t nrf_spis_event_address_get	(	NRF_SPIS_Type const *	p_reg ,
		nrf_spis_event_t	spis_event
	)

Function for getting the address of a specific SPIS event register.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	spis_event	Requested event.

Returns: Address of the specified event register.

__STATIC_INLINE bool nrf_spis_event_check	(	NRF_SPIS_Type const *	p_reg ,
		nrf_spis_event_t	spis_event
	)

Function for checking the state of a specific SPIS event.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	spis_event	Event to check.

Return values

true	If the event is set.
false	If the event is not set.

__STATIC_INLINE void nrf_spis_event_clear	(	NRF_SPIS_Type *	p_reg ,
		nrf_spis_event_t	spis_event
	)

Function for clearing a specific SPIS event.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	spis_event	Event to clear.

__STATIC_INLINE void nrf_spis_int_disable	(	NRF_SPIS_Type *	p_reg ,
		uint32_t	spis_int_mask
	)

Function for disabling specified interrupts.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	spis_int_mask	Interrupts to disable.

__STATIC_INLINE void nrf_spis_int_enable	(	NRF_SPIS_Type *	p_reg ,
		uint32_t	spis_int_mask
	)

Function for enabling specified interrupts.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	spis_int_mask	Interrupts to enable.

__STATIC_INLINE bool nrf_spis_int_enable_check	(	NRF_SPIS_Type const *	p_reg ,
		nrf_spis_int_mask_t	spis_int
	)

Function for retrieving the state of a given interrupt.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	spis_int	Interrupt to check.

Return values

true	If the interrupt is enabled.
false	If the interrupt is not enabled.

__STATIC_INLINE void nrf_spis_orc_set	(	NRF_SPIS_Type *	p_reg ,
		uint8_t	orc
	)

Function for setting the over-read character.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	orc	Over-read character that is clocked out in case of an over-read of the TXD buffer.

__STATIC_INLINE void nrf_spis_pins_set	(	NRF_SPIS_Type *	p_reg ,
		uint32_t	sck_pin ,
		uint32_t	mosi_pin ,
		uint32_t	miso_pin ,
		uint32_t	csn_pin
	)

Function for configuring SPIS pins.

If a given signal is not needed, pass the NRF_SPIS_PIN_NOT_CONNECTED value instead of its pin number.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	sck_pin	SCK pin number.
[in]	mosi_pin	MOSI pin number.
[in]	miso_pin	MISO pin number.
[in]	csn_pin	CSN pin number.

__STATIC_INLINE uint8_t nrf_spis_rx_amount_get ( NRF_SPIS_Type const * p_reg )

Function for getting the number of bytes received in the last granted transaction.

Parameters

[in] p_reg Pointer to the peripheral registers structure.

Returns: Number of bytes received.

__STATIC_INLINE void nrf_spis_rx_buffer_set	(	NRF_SPIS_Type *	p_reg ,
		uint8_t *	p_buffer ,
		uint8_t	length
	)

Function for setting the receive buffer.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	p_buffer	Pointer to the buffer for received data.
[in]	length	Maximum number of data bytes to receive.

__STATIC_INLINE nrf_spis_semstat_t nrf_spis_semaphore_status_get ( NRF_SPIS_Type * p_reg )

Function for retrieving the SPIS semaphore status.

Parameters

[in] p_reg Pointer to the peripheral registers structure.

Returns: Current semaphore status.

__STATIC_INLINE void nrf_spis_shorts_disable	(	NRF_SPIS_Type *	p_reg ,
		uint32_t	spis_shorts_mask
	)

Function for disabling specified shortcuts.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	spis_shorts_mask	Shortcuts to disable.

__STATIC_INLINE void nrf_spis_shorts_enable	(	NRF_SPIS_Type *	p_reg ,
		uint32_t	spis_shorts_mask
	)

Function for enabling specified shortcuts.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	spis_shorts_mask	Shortcuts to enable.

__STATIC_INLINE nrf_spis_status_mask_t nrf_spis_status_get ( NRF_SPIS_Type * p_reg )

Function for retrieving the SPIS status.

Parameters

[in] p_reg Pointer to the peripheral registers structure.

Returns: Current SPIS status.

__STATIC_INLINE uint32_t nrf_spis_task_address_get	(	NRF_SPIS_Type const *	p_reg ,
		nrf_spis_task_t	spis_task
	)

Function for getting the address of a specific SPIS task register.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	spis_task	Requested task.

Returns: Address of the specified task register.

__STATIC_INLINE void nrf_spis_task_trigger	(	NRF_SPIS_Type *	p_reg ,
		nrf_spis_task_t	spis_task
	)

Function for activating a specific SPIS task.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	spis_task	Task to activate.

__STATIC_INLINE uint8_t nrf_spis_tx_amount_get ( NRF_SPIS_Type const * p_reg )

Function for getting the number of bytes transmitted in the last granted transaction.

Parameters

[in] p_reg Pointer to the peripheral registers structure.

Returns: Number of bytes transmitted.

__STATIC_INLINE void nrf_spis_tx_buffer_set	(	NRF_SPIS_Type *	p_reg ,
		uint8_t const *	p_buffer ,
		uint8_t	length
	)

Function for setting the transmit buffer.

Parameters

[in]	p_reg	Pointer to the peripheral registers structure.
[in]	p_buffer	Pointer to the buffer that contains the data to send.
[in]	length	Maximum number of data bytes to transmit.

SPIS HAL

nRF5 SDK v12.1.0

Macros

Enumerations

Functions

Detailed Description

Enumeration Type Documentation

Function Documentation