PDM DMA transfer handle, users should not touch the content of the handle. More...

#include <fsl_pdm_edma.h>

Data Fields
edma_handle_t *	dmaHandle

uint8_t	count

uint32_t	receivedBytes

uint32_t	state

pdm_edma_callback_t	callback

bool	isLoopTransfer

void *	userData

edma_tcd_t *	tcd

uint32_t	tcdNum

uint32_t	tcdUser

uint32_t	tcdDriver

volatile uint32_t	tcdUsedNum

pdm_edma_multi_channel_interleave_t	interleaveType

uint8_t	endChannel

uint8_t	channelNums

Detailed Description

PDM DMA transfer handle, users should not touch the content of the handle.

Field Documentation

◆ callback

pdm_edma_callback_t _pdm_edma_handle::callback

Callback for users while transfer finish or error occurs

◆ channelNums

uint8_t _pdm_edma_handle::channelNums

total channel numbers

◆ count

uint8_t _pdm_edma_handle::count

The transfer data count in a DMA request

◆ dmaHandle

edma_handle_t* _pdm_edma_handle::dmaHandle

DMA handler for PDM send

◆ endChannel

uint8_t _pdm_edma_handle::endChannel

The last enabled channel

◆ interleaveType

pdm_edma_multi_channel_interleave_t _pdm_edma_handle::interleaveType

multi channel transfer interleave type

◆ isLoopTransfer

bool _pdm_edma_handle::isLoopTransfer

loop transfer

◆ receivedBytes

uint32_t _pdm_edma_handle::receivedBytes

total transfer count

◆ state

uint32_t _pdm_edma_handle::state

Internal state for PDM eDMA transfer

◆ tcd

edma_tcd_t* _pdm_edma_handle::tcd

TCD pool for eDMA transfer.

◆ tcdDriver

uint32_t _pdm_edma_handle::tcdDriver

Index for driver to get the transfer data and size

◆ tcdNum

uint32_t _pdm_edma_handle::tcdNum

TCD number

◆ tcdUsedNum

volatile uint32_t _pdm_edma_handle::tcdUsedNum

Index for user to queue transfer.

◆ tcdUser

uint32_t _pdm_edma_handle::tcdUser