Has anyone got Kevin Mehall's USB stack working? It's based on the nonolith one I think.
I've imported it into Atmel Studio and set it up for a known-working 128A3U board, but it won't enumerate. Has anyone else tried it?
Have you tried contacting him via GitHub ?
Is this you, then: https://github.com/kevinmehall/usb/issues/7 ?
Yes, I asked there too.
The secret sauce was -fno-jump-tables. I thought that was fixed in gcc now, but whatever... A basic set up comes out at 2082 bytes, meaning a 4k bootloader is now looking entirely doable.
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