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> 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 m
by MegaDeKay 3y ago
> 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 https://twitter.com/YLRabbit/status/1768935258903503248
- codebje 3y agohttps://github.com/YosysHQ/apicula 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?
- MegaDeKay 3y agoIt 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/ https://learn.lushaylabs.com/tang-nano-series/