Introduction

This document explains how to use the Quad PDM microphones and the SPDIF transmitter and receiver in the SAMA7G54-EK evaluation kit with Linux.

This guide helps the user to configure, build, and test audio interfaces like the Quad PDM microphones and SPDIF transmitter/receiver available on the SAMA7G54-EK evaluation kit in a Linux buildroot environment. It includes instructions for configuring buildroot to support audio functionalities, capturing sound through the built-in microphone, and using the SPDIF interface for both transmitting and receiving audio data.