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A comment on Logik: Open-source FPGA toolchain by Zero ASIC. Parent comment

Re:Logik: Open-source FPGA toolchain by Zero ASIC by MegaDeKay on Wednesday April 03, 2024 @11:59PM (#39926392)
> while the yosys+nextpnr open toolchain claims full support for the FPGAs on the Tang boards

Citation needed. The GoWin FPGAs on these boards are still very much a work in progress. YRabbit is doing most of the reverse engineering on them, it seems, with the DSP blocks only implemented a couple weeks ago.

https://twitter.com/YLRabbit/status/1768935258903503248

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Re:Logik: Open-source FPGA toolchain by Zero ASIC by codebje on Thursday April 04, 2024 @02:52AM (#39927316)
https://github.com/YosysHQ/apicula

Project Apicula says "currently supported boards are ... [list of mostly Tang boards]" without qualification.

I wouldn't be surprised to discover that it actually is qualified support, though. Do you think the actual support is low enough that one should avoid those boards for now?

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Re:Logik: Open-source FPGA toolchain by Zero ASIC by MegaDeKay on Friday April 05, 2024 @10:01AM (#39942486)
It is definitely qualified support.

Whether there is enough for you right now depends on your needs, plus the knowledge that the support will continue to mature as time goes on. A good indicator of what you can do with the open source tools right now is checking out this link [0] at Lushaylabs. It has a fantastic series of practical hands on and useful articles like making your own CPU and driving HUB75 panels. Plus "This series uses a completely open source toolchain which makes development open / fast and lightweight". There is also /r/GowinFPGA on Reddit.

https://learn.lushaylabs.com/tang-nano-series/

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