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I am trying to compile a small design with oss-cad-suite 2025-07-07 for the Tang nano 20K but it fails. If I compile the same program for Tang nano 9K or if I reduce WIDTH from 256 to 32, it does work. Any idea what the problem is? Since I specify
main.v
pinout.cst
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Replies: 3 comments 2 replies
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can you provide the full nextpnr output for the tang nano 20k? (aka without |
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@Ravenslofty, here it is
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FYI, from the nextpnr issue, the cause is that the nextpnr-himbaechel doesn't route the clock input to a global clock net because it is a regular input and not a designated clock input. |
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FYI, from the nextpnr issue, the cause is that the nextpnr-himbaechel doesn't route the clock input to a global clock net because it is a regular input and not a designated clock input.