Okay, so I don’t want to hijack an old thread. I’m basically looking for the simplest way to get a usb-uart module for the tinyfpga bx. The bootloader has all the hard stuff. I’m in the process to try to get it to work, and I think I understand it, but dang if I can get it to work.
Any other suggestions? I tried “Joris full speed USB CDC (ACM) …” as posted by djeffdionne and got it to build but not work.