Hi folks,I'm sampling 8 microphones using 4xI2S peripherals using DMA and a double buffer, which I then use to write to 4xWAV/PCM files on a USB drive and am getting buffer overruns intermittently!I believe I've narrowed it down to the FatFS file wr...

Hi guys,I'm looking at a number of ways to interface 8xPDM microphones and one of the ways is using an STM32H7 with it's SAI/PDM interface. According to the documentation (AN5027, 4.3.1), I should be able to select up to 8 microphones in the H7 SAI1_...

Hi guys,I have an STM32F412 discovery board and am attempting to find the best solution for connecting 8xPDM microphones in 4xStereo pairs and writing the resulting WAV to USB. The method I'm currently attempting is:Use 4xI2S peripherals, each with 2...

I've been reviewing AN5027 (Interfacing PDM digital microphones using STM32) and am a little unclear about a 4x2ch mic configuration using 4 of the SPI/I2S peripherals available on the F412.Looking at the figure below, could I connect all 4 stereo pa...