DMA_Management

Functions
__STATIC_INLINE void	ll_spi_enable_dma_req_tx (ssi_regs_t *SPIx)
	Enable DMA Tx. More...
__STATIC_INLINE void	ll_spi_disable_dma_req_tx (ssi_regs_t *SPIx)
	Disable DMA Tx. More...
__STATIC_INLINE uint32_t	ll_spi_is_enabled_dma_req_tx (ssi_regs_t *SPIx)
	Check if DMA Tx is enabled. More...
__STATIC_INLINE void	ll_spi_enable_dma_req_rx (ssi_regs_t *SPIx)
	Enable DMA Rx. More...
__STATIC_INLINE void	ll_spi_disable_dma_req_rx (ssi_regs_t *SPIx)
	Disable DMA Rx. More...
__STATIC_INLINE uint32_t	ll_spi_is_enabled_dma_req_rx (ssi_regs_t *SPIx)
	Check if DMA Rx is enabled. More...
__STATIC_INLINE void	ll_spi_set_dma_tx_fifo_threshold (ssi_regs_t *SPIx, uint32_t threshold)
	Set threshold of TXFIFO that triggers an DMA Tx request event. More...
__STATIC_INLINE uint32_t	ll_spi_get_dma_tx_fifo_threshold (ssi_regs_t *SPIx)
	Get threshold of TXFIFO that triggers an DMA Tx request event. More...
__STATIC_INLINE void	ll_spi_set_dma_rx_fifo_threshold (ssi_regs_t *SPIx, uint32_t threshold)
	Set threshold of RXFIFO that triggers an DMA Rx request event. More...
__STATIC_INLINE uint32_t	ll_spi_get_dma_rx_fifo_threshold (ssi_regs_t *SPIx)
	Get threshold of RXFIFO that triggers an DMA Rx request event. More...

Detailed Description

Function Documentation

ll_spi_disable_dma_req_rx()

__STATIC_INLINE void ll_spi_disable_dma_req_rx

(

ssi_regs_t *

SPIx

)

Disable DMA Rx.

Register	BitsName
DMAC	RDMAE

Parameters

SPIx	SPI instance

Return values

None

ll_spi_disable_dma_req_tx()

__STATIC_INLINE void ll_spi_disable_dma_req_tx

(

ssi_regs_t *

SPIx

)

Disable DMA Tx.

Register	BitsName
DMAC	TDMAE

Parameters

SPIx	SPI instance

Return values

None

ll_spi_enable_dma_req_rx()

__STATIC_INLINE void ll_spi_enable_dma_req_rx

(

ssi_regs_t *

SPIx

)

Enable DMA Rx.

Register	BitsName
DMAC	RDMAE

Parameters

SPIx	SPI instance

Return values

None

ll_spi_enable_dma_req_tx()

__STATIC_INLINE void ll_spi_enable_dma_req_tx

(

ssi_regs_t *

SPIx

)

Enable DMA Tx.

Register	BitsName
DMAC	TDMAE

Parameters

SPIx	SPI instance

Return values

None

ll_spi_get_dma_rx_fifo_threshold()

__STATIC_INLINE uint32_t ll_spi_get_dma_rx_fifo_threshold

(

ssi_regs_t *

SPIx

)

Get threshold of RXFIFO that triggers an DMA Rx request event.

Register	BitsName
DMARDL	DMARDL

Parameters

SPIx	SPI instance

Return values

Returned

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

ll_spi_get_dma_tx_fifo_threshold()

__STATIC_INLINE uint32_t ll_spi_get_dma_tx_fifo_threshold

(

ssi_regs_t *

SPIx

)

Get threshold of TXFIFO that triggers an DMA Tx request event.

Register	BitsName
DMATDL	DMATDL

Parameters

SPIx	SPI instance

Return values

Returned

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

ll_spi_is_enabled_dma_req_rx()

__STATIC_INLINE uint32_t ll_spi_is_enabled_dma_req_rx

(

ssi_regs_t *

SPIx

)

Check if DMA Rx is enabled.

Register	BitsName
DMAC	RDMAE

Parameters

SPIx	SPI instance

Return values

State

of bit (1 or 0).

ll_spi_is_enabled_dma_req_tx()

__STATIC_INLINE uint32_t ll_spi_is_enabled_dma_req_tx

(

ssi_regs_t *

SPIx

)

Check if DMA Tx is enabled.

Register	BitsName
DMAC	TDMAE

Parameters

SPIx	SPI instance

Return values

State

of bit (1 or 0).

ll_spi_set_dma_rx_fifo_threshold()

__STATIC_INLINE void ll_spi_set_dma_rx_fifo_threshold	(	ssi_regs_t *	SPIx,
		uint32_t	threshold
	)

Set threshold of RXFIFO that triggers an DMA Rx request event.

Register	BitsName
DMARDL	DMARDL

Parameters

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

Return values

None

ll_spi_set_dma_tx_fifo_threshold()

__STATIC_INLINE void ll_spi_set_dma_tx_fifo_threshold	(	ssi_regs_t *	SPIx,
		uint32_t	threshold
	)

Set threshold of TXFIFO that triggers an DMA Tx request event.

Register	BitsName
DMATDL	DMATDL

Parameters

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

Return values

None