call_sv_bfm issues

[sureshamathew]

Hi Mark,

Thank you very much for developing this library. It certainly takes SV Python interaction to the next level.

I downloaded the repository and tried to run the examples/call/dpi/call_sv_bfm/ using the VCS simulator. However, I noticed that the WishboneInitiator and Test classes were never generated. However, I see that the interface implementation classes were generated correctly. Hence, the code didn't compile completely. Is there an update that I am missing? If you'd like more information about this issue, please let me know what information you'd like me to add.

Thanks,

[sureshamathew]

FYI - I started my exploration of the repository based on the article - https://bitsbytesgates.com/python/2024/11/04/DPI_Isnt_Enough_MakingPythonPartOfYourSVTB.html

[mballance]

Thanks for reaching out, @sureshamathew. It's good timing, actually, since I was just wrapping up some work to make the examples (hopefully) easier to run and maintain. Have a look at Examples.md and follow the instructions there. I recommend using the 'setup.sh' script to create a virtual environment.

[sureshamathew]

Hi @mballance ,
Thank you for your response.
I cloned the repository afresh, ran the examples/setup.sh, and sourced the setup.csh script as well.
When I try to run dfm (I am running it from the top of the repository), I get the following error -
E: Failed to find a 'flow.dv/flow.yaml/flow.toml' file that defines a package in pyhdl-if or
its parent directories.
I don't think I missed any of the outlined steps. So, any ideas on what I could be missing?
If I wanted to run it with VCS or other commercial simulators, what files do I need to modify so that I can provide a path to the simulator executable?

[mballance]

Hi @sureshamathew, that error suggests that you're not running in the example directory. Try running from pyhdl-if/examples/call/dpi/call_sv_bfm. You can run with VCS by running:

% dfm run -Dsim=vcs sim-run

Just ensure that 'vcs' is available in your PATH

[sureshamathew]

Thanks. That worked for me!