Draft: Get spiram and tinyusb into flow3r
We came up with a way to enable spiram and revived tinyusb for further experimentation. This is working, but probably not the right way to do it.
Questions:
- What of the spiram section is actually needed?
- How can we avoid the redundancy of adding to all .pX files?
- Can we have a compiler switch between usb-jtag and tinyusb?