Open fontamsoc opened 2 years ago
@fontamsoc I couldn't reproduce the error on my end. What version of the symbiflow-plugins do you use? Is it the same as here ?
To make sure you have the latest plugins installed invoke conda install -c litex-hub symbiflow-yosys-plugins
in your conda environment.
Have you ever built the sdc plugin manually. If so then there is a debug option that prints out additional information during the clock propagation phase.
Also, should I use the code on the master branch or some other commit, because the 44c4298
SHA that is in the report can't be found.
HI @tmichalak,
I have updated steps to reproduce to git checkout issues/177
which is the same SHA 44c4298
.
I have never built sdc plugin manually; however I have installed SymbiFlow using following instructions: https://symbiflow-examples.readthedocs.io/en/latest/getting-symbiflow.html
I was able to work around the issue removing -add
from create_clock
at:
https://github.com/fontamsoc/hw/blob/44c4298/pu32-nexys4ddr/nexys4ddr.xdc#L4
GitHubContribute to fontamsoc/hw development by creating an account on GitHub.
FYI - I logged the following GitHub issues based on this bug report;
Yep. Hitting the same bug here as described in https://github.com/SymbiFlow/yosys-symbiflow-plugins/issues/180 . Removing -add
makes it pass
https://lists.librecores.org/pipermail/symbiflow/2021-December/000049.html
Hello,
I am attempting to build FonTamSOC targeting NexysA7.
However,
symbiflow_synth
fails withERROR: Incorrect period value
at the end of the logs.Steps to reproduce failure: