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Empty GUI grid with --gui using nexpnr-himbaechel on GW1NR-LV9; --gui-no-aa crashes. #1350

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stacksmith opened this issue Aug 16, 2024 · 3 comments

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@stacksmith
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stacksmith commented Aug 16, 2024

Trying to see a working design using

nextpnr-himbaechel --gui --json top_pnr.json --top top --device GW1NR-LV9QN88PC6/I5 --vopt family=GW1N-9C --vopt cst=tangnano9k.cst

GUI opens and shows an empty grid; cells and nets indicate that the design is loaded.
...
Next, --gui-no-aa:

nextpnr-himbaechel --gui-no-aa --json top_pnr.json --top top --device GW1NR-LV9QN88PC6/I5 --vopt family=GW1N-9C --vopt cst=tangnano9k.cst
Info: Using uarch 'gowin' for device 'GW1NR-LV9QN88PC6/I5'

Info: Reading constraints...
Info: Cell led[5] not found
Info: Cell led[5] not found
Info: Cell led[4] not found
Info: Cell led[4] not found
Info: Cell led[3] not found
Info: Cell led[3] not found
Info: Cell led[2] not found
Info: Cell led[2] not found
Info: Cell led[1] not found
Info: Cell led[1] not found
Info: Cell led[0] not found
Info: Cell led[0] not found
Info: Cell btn1 not found
Info: Cell btn1 not found
Info: Cell btn2 not found
Info: Cell btn2 not found
Info: Cell clk_in not found
Info: Cell clk_in not found
Info: Cell uart_tx not found
Info: Cell uart_tx not found
Info: Cell uart_rx not found
Info: Cell uart_rx not found
Info: Create constant nets...
terminate called after throwing an instance of 'nextpnr_himbaechel::assertion_failure'
  what():  Assertion failure: !cells.count(name) (/home/stack/src/fpga/nextpnr/common/kernel/basectx.cc:298)
Aborted (core dumped)

gui-no-aa seems to not understand the very same .cst file -- it lists every pin as not found.

Any thoughts or suggestions?

@Ravenslofty
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I don't think the Gowin uarch for nextpnr-himbaechel has GUI support yet.

@stacksmith
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I must've used nextpnr-gowin a while back!

@Patronics
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Patronics commented Sep 25, 2024

I encountered the same behavior, looks like PR #1295 should solve it whenever that gets merged in :)

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