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Plotting VerilogA String Variables

Tjaart

I have written a VerilogA testbench that runs a few automated tests using IC6.1.7 and SPECTRE171.

I thought it would be useful to plot the current test phase as a string on the waveform as this could help with analog debugging along the x-axis (time).

I might have managed to update a string variable at the start of every phase, but now it seems that I cannot access the variable in the VIVA results browser. I have also changed the output format to SST2 and tried using Simvision but this also did not work. I have made sure that "saveahdlvars" is set, and I can currently access and plot all the real and integer VerilogA variables.

I have done something similar inside a SystemVerilog bench through a Mixed-Mode simulation, but right now I want to avoid expanding my bench this far.

Is there a way for me to plot this variable on a waveform viewer?

Parents
  • Andrew Beckett

    Could you provide your model (or a simplified but working version of your model) so that we don't have to try and create something that (by guesswork) does what you're doing?

    Thanks,

    Andrew.

  • Tjaart
    in reply to Andrew Beckett

    In the code that I have posted, I want to plot the variable "message" onto a waveform viewer, in order to visibly align any analog signals that I am also plotting.

Reply
  • Tjaart
    in reply to Andrew Beckett

    In the code that I have posted, I want to plot the variable "message" onto a waveform viewer, in order to visibly align any analog signals that I am also plotting.

Children
  • Andrew Beckett
    in reply to Tjaart

    This doesn't seem to be possible from my experiments. I didn't find a request to support saving string variables from VerilogA (might be slightly tricky, because the database format probably doesn't support this right now anyway). 

    You should contact customer support to request this as an enhancement.

    Kind Regards,

    Andrew.

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