I’ve recently bought an Adafruit PDM MEMS microphone breakout (https://core-electronics.com.au/adafruit-pdm-mems-microphone-breakout.html) and am attempting to interface it with a Raspberry Pi Zero W.
According to the Pi Zero BCM2835 SoC datasheet (https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2835/BCM2835-ARM-Peripherals.pdf), the I2S line supports interfacing with up to 2 PDM microphones.
However achieving this requires enabling PDM mode and making possibly (?) making changes to the BCM2835 registers. This is beyond my area of knowledge so I’m reaching out to see if anyone has any experience or guidance on this topic.
Any help would be greatly appreciated!