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**OS:** Arch Linux
**Kernel:** 5.16.5-arch1-1
NextPNR fails to build with ECP5 using the [prjtrellis](https://archlinux.org/packages/community/x86_64/prjtrellis/) and [prjtrellis-db](https://archl…
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System info:
```
Ubuntu 20.04.3
clang version 10.0.0-4ubuntu1
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0
```
I installe…
grvvy updated
2 years ago
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I had this doozy yesterday when building nextpnr as part of the '[summon_fpga_tools](https://github.com/open-tool-forge/summon-fpga-tools)' script put together for the icebreaker fpga board. I was bui…
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I am using the ECP5 develop board [icesugar-pro](https://github.com/wuxx/icesugar-pro) and the FPGA is `LFE5U-25F-6BG256C`.
I tried to connect to the SPI-FLASH on this board. According to the [schema…
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ECP5 bitstream for either `trellisboard` or `lambdaconcept_ecpix5` built using current-as-of-this-morning toolchain (yosys df2b79c, prjtrellis fe1c39c, and nextpnr e19d44e) consistently fails to pass …
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While creating `nmigen` designs for MachXO2 that _require_ Diamond, I noticed that the synthesis was significantly slower than compared to the manual shell script that @gatecat created for `prjtrellis…
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Not sure if I should open this issue here, or on some other ULX3S repo...
I'm attempting to add the onboard SPI flash to the ULX3S board to enable my SoC to boot from flash (See initial WIP commit …
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Does prtrellis create and install tilegrid.json in database ? If not what does?
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I'm trying to build nextpnr against prjoxide on windows and hitting this error:
`
Touching "x64\Release\chipdb-nexus-bbas\chipdb-n.1CF2954C.tlog\unsuccessfulbuild".
CustomBuild:
"The build o…
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With Cmake 3.19 which is the default cmake that comes with
brew, building nextpnr on Mac fails. This is because CMake searches for
``pytrellis.dylib``, but prjtrellis build ``pytrellis.so``.