PDM initialization structure.

Public Attributes#

bool
start

Start PDM filter after initialization.

uint32_t
dsr

PDM down sampling rate.

uint32_t
gain

PDM gain.

bool
enableCh0Ch1Stereo

Enable stereo mode for channel pair CH0 and CH1.

PDM_FifoValidWatermark_Typedef
fifoValidWatermark

FIFO Data valid level water-mark.

PDM_DataFormat_TypeDef
dataFormat

PDM filter data output format.

uint32_t
prescaler

PDM clock prescaler, resulting PDM clock is input clock / (prescaler + 1).

Public Attribute Documentation#

start#

bool PDM_Init_TypeDef::start

Start PDM filter after initialization.


dsr#

uint32_t PDM_Init_TypeDef::dsr

PDM down sampling rate.


gain#

uint32_t PDM_Init_TypeDef::gain

PDM gain.


ch1ClkPolarity#

PDM_Ch1ClkPolarity_Typedef PDM_Init_TypeDef::ch1ClkPolarity

Ch 1 clock polarity.


ch0ClkPolarity#

PDM_Ch0ClkPolarity_Typedef PDM_Init_TypeDef::ch0ClkPolarity

Ch 0 clock polarity.


enableCh0Ch1Stereo#

bool PDM_Init_TypeDef::enableCh0Ch1Stereo

Enable stereo mode for channel pair CH0 and CH1.


fifoValidWatermark#

PDM_FifoValidWatermark_Typedef PDM_Init_TypeDef::fifoValidWatermark

FIFO Data valid level water-mark.


dataFormat#

PDM_DataFormat_TypeDef PDM_Init_TypeDef::dataFormat

PDM filter data output format.


numChannels#

PDM_NumberOfChannels_TypeDef PDM_Init_TypeDef::numChannels

Number of PDM channels.


filterOrder#

PDM_FilterOrder_TypeDef PDM_Init_TypeDef::filterOrder

PDM filter order.


prescaler#

uint32_t PDM_Init_TypeDef::prescaler

PDM clock prescaler, resulting PDM clock is input clock / (prescaler + 1).