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Altera_Forum's avatar
Altera_Forum
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14 years ago

Is there an approach to save the whole simulation results in Modelsim

Sometimes the simulation in Modelsim will take a very long time. We may check the simulation results just after simulation finished, but may check it again next time (1 day later). In this case, I need to simulate it again and a same long time will be cost.

I just wonder is there any approach that we can save the whole simulation results (the waveform) ? Then we just need to open the simulation results again to check instead of simulate it again.

Thanks very much.

4 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    You can add "log -r *" to your .do file before your simulation "run" command. This will create a vsim.wlf that can be opened up later in the GUI to view all the simulation waveforms. However, if you are running very long simulations or have a very large design this might require a lot of disk space. In that case, you can replace the "*" with a particular hierarchal hdl path from your design.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    Thanks very much, crauer. Do you know how to operate it through GUI?

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    Hi crauer, I just find eve I didn't input the comand"log -r *", it seems Modelsim will save the file "vsim.wlf" automatically in each simulation.

  • Anonymous's avatar
    Anonymous
    Not applicable
    4 years ago

    Hi all,

    Is it possible to start the modelsim simulation from the last saved timepoint in wlf file? Or do i need to always restart the simulation?