This is an implimentation in rust of a 3 pin UAC2 class I2C audio device on the Pimoroni Pico Audio Pack using the Texas Instrument PCM5100A Digital Analogue Converter. This project uses the rp-hal library, and as their project is still not at a stable version, I am only including the direct source code for the audio player.
I personally recommend inserting this file into the examples folder of the rp-hal rust project folder and building with cargo run --release --examples pio_audio after connecting your rp2040 in upload mode due to potential changes in the rp-hal library until they reach a stable release.
This is currently not outputting the sample sine wave I generate in the generate_sine_wave function and I can not figure out why. Any help from interested parties is wanted!
- Get test data to output
- configure the usb pll speed for 192khz or higher
- expose the rp2040 as a UAC2 audio device to the host system
- integrate with the pimoroni pico display pack
- ??? more to come ???