PDM handle structure. More...

#include <fsl_pdm.h>

Data Fields
uint32_t	state
pdm_transfer_callback_t	callback
void *	userData
pdm_transfer_t	pdmQueue [PDM_XFER_QUEUE_SIZE]
size_t	transferSize [PDM_XFER_QUEUE_SIZE]
volatile uint8_t	queueUser
volatile uint8_t	queueDriver
uint32_t	format
uint8_t	watermark
uint8_t	startChannel
uint8_t	channelNums

Detailed Description

PDM handle structure.

Field Documentation

◆ callback

pdm_transfer_callback_t _pdm_handle::callback

Callback function called at transfer event

◆ channelNums

uint8_t _pdm_handle::channelNums

Enabled channel number

◆ format

uint32_t _pdm_handle::format

data format

◆ pdmQueue

pdm_transfer_t _pdm_handle::pdmQueue[PDM_XFER_QUEUE_SIZE]

Transfer queue storing queued transfer

◆ queueDriver

volatile uint8_t _pdm_handle::queueDriver

Index for driver to get the transfer data and size

◆ queueUser

volatile uint8_t _pdm_handle::queueUser

Index for user to queue transfer

◆ startChannel

uint8_t _pdm_handle::startChannel

end channel

◆ state

uint32_t _pdm_handle::state

Transfer status

◆ transferSize

size_t _pdm_handle::transferSize[PDM_XFER_QUEUE_SIZE]

Data bytes need to transfer

◆ userData

void* _pdm_handle::userData

Callback parameter passed to callback function

◆ watermark

uint8_t _pdm_handle::watermark

Watermark value

The documentation for this struct was generated from the following file:

bsps/arm/imxrt/mcux-sdk/drivers/pdm/fsl_pdm.h

Data Fields