PDM_Init_TypeDef Struct Reference
PDM initialization structure.
#include <em_pdm.h>
Data Fields |
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| bool | start |
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Start PDM filter after initialization.
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| bool | outClkEn |
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Enable PDM clock.
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| uint32_t | dsr |
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PDM down sampling rate.
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| uint32_t | gain |
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PDM gain.
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| PDM_Ch3ClkPolarity_Typedef | ch3ClkPolarity |
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Ch 3 clock polarity.
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| PDM_Ch2ClkPolarity_Typedef | ch2ClkPolarity |
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Ch 2 clock polarity.
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| PDM_Ch1ClkPolarity_Typedef | ch1ClkPolarity |
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Ch 1 clock polarity.
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| PDM_Ch0ClkPolarity_Typedef | ch0ClkPolarity |
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Ch 0 clock polarity.
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| bool | enableCh2Ch3Stereo |
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Enable stereo mode for channel pair CH2 and CH3.
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| bool | enableCh0Ch1Stereo |
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Enable stereo mode for channel pair CH0 and CH1.
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| PDM_FifoValidWatermark_Typedef | fifoValidWatermark |
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FIFO Data valid level water-mark.
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| PDM_DataFormat_TypeDef | dataFormat |
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PDM filter data output format.
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| PDM_NumberOfChannels_TypeDef | numChannels |
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Number of PDM channels.
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| PDM_FilterOrder_TypeDef | filterOrder |
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PDM filter order.
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| uint32_t | prescaler |
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PDM clock prescaler, resulting PDM clock is input clock / (prescaler + 1).
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PDM initialization structure.
Field Documentation
◆ start
| bool PDM_Init_TypeDef::start |
Start PDM filter after initialization.
◆ outClkEn
| bool PDM_Init_TypeDef::outClkEn |
Enable PDM clock.
◆ dsr
| uint32_t PDM_Init_TypeDef::dsr |
PDM down sampling rate.
◆ gain
| uint32_t PDM_Init_TypeDef::gain |
PDM gain.
◆ ch3ClkPolarity
| PDM_Ch3ClkPolarity_Typedef PDM_Init_TypeDef::ch3ClkPolarity |
Ch 3 clock polarity.
◆ ch2ClkPolarity
| PDM_Ch2ClkPolarity_Typedef PDM_Init_TypeDef::ch2ClkPolarity |
Ch 2 clock polarity.
◆ ch1ClkPolarity
| PDM_Ch1ClkPolarity_Typedef PDM_Init_TypeDef::ch1ClkPolarity |
Ch 1 clock polarity.
◆ ch0ClkPolarity
| PDM_Ch0ClkPolarity_Typedef PDM_Init_TypeDef::ch0ClkPolarity |
Ch 0 clock polarity.
◆ enableCh2Ch3Stereo
| bool PDM_Init_TypeDef::enableCh2Ch3Stereo |
Enable stereo mode for channel pair CH2 and CH3.
◆ 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).