This demonstrates how to use the esp-idf-hal I2S driver under development over at
this esp-idf-hal issue.
To use it, you will need the ESP-IDF 5.0 SDK checked out and your $IDF_PATH environment
variable pointing to it, e.g.:
cd ~/esp
git clone -b v5.0.1 https://github.com/espressif/esp-idf.git
./install.sh
export IDF_PATH=$HOME/esp/esp-idf
You will also need to source your export-esp.sh script to configure the Rust ESP environment
as usual.
Currently, I am testing this on a SparkFun Thing Plus (ESP32-S2 WROOM) connected to a MAX98357A audio breakout board writed to a TRRS audio jack. Data signals are being written properly to the MAX98357A, but audio is not being generated as I suspect I may have blown up my breakout board.