Demo 5: Custom SAMD51 processor

The QICSAMD51 processor smushes the bits and bobs from Demo 4 into a compact formfactor.  This allows you to put the Demo 4 synth onto the smaller QICBoard:

This runs the same Demo 4 software.

I've also swapped out the DAC for a CODEC, the QICPCM3060:

I couldn't get the PCM3060 to slave to the SAMD51, so I made it the master, and the SAMD51 the slave, which required rewriting the Arduino code.

Here's the basic ChirpInterp code from Demo4 with the necessary changes in setup:

And here's the beginnings of an effects processor – the 51 reading from the CODEC and writing it back out: