PDM2PCM : Software expansion for STM23Cube Specifies the bit order for input. <br>- 0x0000 : Least Signficant Bit <br>- 0x0001 : Most Significant Bit Specifies if byte inversion is required. <br>- 0x0000 : Little Endian<br>- 0x0001 : Big Endian Specifies the HP filter tap value. <br>-0 : filter not used <br> Specifies the number of channels in the input PDM Stream. Specifies the number of channels in the output PCM stream. Specifies the decimation factor. Specifies the number of PCM samples to be generated at each call to PDM_filter() function. Specifies the microphone gain in dB. PDM2PCM_ENABLE_Init S_PDM2PCM$context