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Omar77's avatar
Omar77
Icon for New Contributor rankNew Contributor
4 months ago

Questa Starter Edition (25.1): Debug Visibility

I have the Questa Starter Edition installed on my dev VM (running Ubuntu 24.04). I noticed recently that when I run my sims and view the resulting vsim.wlf file that only few signal are visible. For instance, the parameters are all not visible. I've been banging my head on this for days but I cannot seem to get to the bottom of it. I re-created the issue with super simple code:

src=mult.sv and tb_mult.sv (generic multiplier and SV testbench)

Here is how I run the sim from CLI:

vlib mult
vlog -sv -work mult mult.sv tb_mult.sv

vsim -c -voptargs=+acc mult.tb_mult -do "log -r /*; run -all; quit"

I then open the resulting vsim.wlf file and I only see:

The objects window is missing a whole lot of detail.

What's interesting is once I'm in the GUI, if I tried to compile and run vsim again I seem to get the signal visiblity that I want:


What could I be missing here?

3 Replies

  • RichardT_altera's avatar
    RichardT_altera
    Icon for Super Contributor rankSuper Contributor
    4 months ago

    You can see that the tab windows ("sim" vs "vsim") are different from each other. I suggest reaching out to Siemens for further clarification regarding the differences between the "sim" and "vsim" tabs. They are the expertise on these.

    In Altera, we recommend creating or generating a simulation setup script (.do file) to run the simulation.

    Reference: https://www.intel.com/content/www/us/en/docs/programmable/691278/21-3/quick-start.html

    That said, if you want to view all the signals, you can run the following command in the Questa GUI. This will execute the .do file and start the simulation. Having both "vsim" and "sim" window tab being shown as above. 

    vsim -view vsim.wlf -do <>_rtl_verilog.do

    Regards,

    Richard

  • RichardT_altera's avatar
    RichardT_altera
    Icon for Super Contributor rankSuper Contributor
    4 months ago

    Any update on this?

    Do you need further help regarding this case?


    Regards,

    Richard


  • RichardT_altera's avatar
    RichardT_altera
    Icon for Super Contributor rankSuper Contributor
    4 months ago

    We noticed that we haven't received a response from you regarding the latest previous question/reply/answer, and will now transitioning your inquiry to our community support. We apologize for any inconvenience this may cause and we appreciate your understanding.

    If you have any further questions or concerns, please don't hesitate to reach out. Please login to https://supporttickets.intel.com/s/?language=en_US, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.


    The community users will be able to help you on your follow-up questions.


    Thank you for reaching out to us!


    Best Regards,

    Richard Tan