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  1. #1
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    ultrasimverilog

    I have a problem with UltrasimVerilog mixed-mode simulation.
    Befire I run simulation I picked up nets I want to be saved in the same way as I used that with Spectre simulator. But when I want to plot some of them after simulation I got a message like:

    "Wave1 is a not a waveform object that can be displayed and will be turned OFF automatically"

    Sometimes I can plot that sometimes can't. I cannot figure out what the problem.
    For example I start simulation for 1.5 sec. Then I can see results and decide to run another simulation (during the same session) for 9 sec. After that when I tried to plot the same waveforms I got this message. Even If I change simulation time back to 1.5 sec I cannot plot wavefors. It looks like something is triggered in simulation enviroment. But where? and what?
    Could anybody help or give some suggestions?

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  2. #2
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    Re: UltrasimVerilog waveform plotting problem

    I got some idea about what you said.
    1> Check your simulation options. Output---->save all ----> whether you select that selected? If you save all the signals ,the data will be too large to display.
    2> If you only saved you interested signal, you can save the data after some time.
    you can set this in analyses--->tran(suppose you run the transition simulation)---> option -->outputstart

    Hope that will help you!



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  3. #3
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    Re: UltrasimVerilog waveform plotting problem

    Sometimes I used output start option, but not now. To reduce simulated data I use stobeperiod option.
    But the situation I mentioned is very weird. After I logout icfb and run it again the signals are saved and can be plotted. That why I said it looks like something in enviroment is triggered.



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  4. #4
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    Re: UltrasimVerilog waveform plotting problem

    yeah,sometimes there are some weird errors in spectre. Just
    need logout ant login again.



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