A flux dispenser for woz files

Theory

• The device plugs in on USB and you can upload at least one .woz file to its internal storage
• A track of flux is stored in memory, and 'scanned out' using the PIO peripheral and DMA
• When incoming step signals are seen (also from a PIO peripheral as pin-change-interrupt), a different track is read and fluxed out
• Later, a UI will allow selection of the woz file
• Much later, or never, using an SD card might be added
• Much, Much later, or never, writing might be added

FAQ

Q: What microcontroller(s) are targeted?

RP2040

Q: Does this work yet?

A: No

Q: Is there hardware yet?

A: No

Q: Why is flux data stored one byte per bit?

A: PIO peripheral can't act on units smaller than 1 byte, and there's enough RAM to be extravagant