Detailed Description

MCSPI channel object.

Data Fields
MCSPI_ChConfig *	chCfg

uint32_t	dmaChConfigNum

uint32_t	isOpen

uint32_t	csDisable

uint32_t	csEnable

uint8_t *	curTxBufPtr

uint8_t *	curRxBufPtr

uint32_t	curTxWords

uint32_t	curRxWords

uint8_t	bufWidthShift

uint32_t	dataWidthBitMask

uint32_t	effTxFifoDepth

uint32_t	effRxFifoDepth

uint32_t	intrMask

MCSPI_DmaChConfig	dmaChCfg

uint32_t	chConfRegVal

uint32_t	chCtrlRegVal

uint32_t	systRegVal

Field Documentation

◆ chCfg

MCSPI_ChConfig* MCSPI_ChObject::chCfg

Channel configuration as provided by user

◆ dmaChConfigNum

uint32_t MCSPI_ChObject::dmaChConfigNum

Index of dmaChConfig in DMA Config Array

◆ isOpen

uint32_t MCSPI_ChObject::isOpen

Flag to indicate whether the instance is opened already

◆ csDisable

uint32_t MCSPI_ChObject::csDisable

Flag to indicate disable chip select

◆ csEnable

uint32_t MCSPI_ChObject::csEnable

Flag to indicate enable chip select

◆ curTxBufPtr

uint8_t* MCSPI_ChObject::curTxBufPtr

Current TX buffer pointer

◆ curRxBufPtr

uint8_t* MCSPI_ChObject::curRxBufPtr

Current RX buffer pointer

◆ curTxWords

uint32_t MCSPI_ChObject::curTxWords

Number of words transmitted. We need seperate counters for TX/RX because when FIFO in enabled, TX writes happen in advance where as RX will happen on actual received data.

◆ curRxWords

uint32_t MCSPI_ChObject::curRxWords

Number of words received

◆ bufWidthShift

uint8_t MCSPI_ChObject::bufWidthShift

Width of buffer in bytes - used for accessing the TX/RX buffer. When dataWidth <= 8, bufWidth = uint8_t (1 byte - 0 shift) When dataWidth > 8 && <= 16, bufWidth = uint16_t (2 bytes - 1 shift) When dataWidth > 16 && <= 32, bufWidth = uint32_t (4 bytes - 2 shift)

◆ dataWidthBitMask

uint32_t MCSPI_ChObject::dataWidthBitMask

Data width mask depending on SPI word size

◆ effTxFifoDepth

uint32_t MCSPI_ChObject::effTxFifoDepth

Effective TX FIFO depth in words - depends on dataWidth

◆ effRxFifoDepth

uint32_t MCSPI_ChObject::effRxFifoDepth

Effective RX FIFO depth in words - depends on dataWidth

◆ intrMask

uint32_t MCSPI_ChObject::intrMask

Interrupt mask to be used for enabling / checking interrupts.

◆ dmaChCfg

MCSPI_DmaChConfig MCSPI_ChObject::dmaChCfg

DMA Configuration for each channel.

◆ chConfRegVal

uint32_t MCSPI_ChObject::chConfRegVal

Channel Control Register Value.

◆ chCtrlRegVal

uint32_t MCSPI_ChObject::chCtrlRegVal

SYST Register Value.

◆ systRegVal

uint32_t MCSPI_ChObject::systRegVal