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> How do I debug this?

We (or more likely, Clifford Wolf) writes the code to do it. Maybe not today, but proprietary software wasn't replaced by open source software in a day.

I'm not saying that yosys is a replacement for Vivado, it's obviously not, but here we have a nice Artix-based board and with not too much effort we could also offer a completely free, easy to use toolchain for it, perhaps not one which does everything, but definitely enough to download designs, compile a bitstream and program it onto the board.

Instead we have this huge barrier to entry - download 40GB [sic] of proprietary crap and register for a time-limited account which is tied to the particular chip you're using.



> I'm not saying that yosys is a replacement for Vivado

Actually, you kinda did:

>>> Please let's kill off Vivado once and for all. [...] There are open source tools for programming FPGAs, and they are really great too: https://rwmj.wordpress.com/2018/03/17/playing-with-picorv32-...


"with not too much effort"

Right, and my truck runs on dreams and starlight.




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