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MATLAB Interface S-parameter Data Import

Curtisma

The aaSP function in MATLAB isn't working for me at all.

I open Matlab and load my results successfully, but when I try to get some data using the aaSP function it throws an error every time as shown below.  Using the aaSP function in the Cadence calculator and as part of an expression in Maestro works great on the same results data set.

Any idea where I am going wrong?  I have tried specifying the datapoint # and test name when running the loadResult() method but it still throws an error.  I also tried specifying the result name ('sp-sp') and result directory as part of my call to aaSP but those also throw an error.

The transient data access functions (VT) do work for another sim I'm running.  I haven't been able to find a way to evaluate an expression and return a Waveform to MATLAB.  Is this possible?

I am using MATLAB R2019a and Virtuoso IC6.1.7-64b.500.23  I have also tried it with MATLAB 2018a and it works the same.

Regards,

Curtis

Parents
  • Andrew Beckett

    Hi Curtis,

    It looks as if the s-parameter data is missing (I just tried it with an s-parameter run with the same Virtuoso and Matlab versions you're using and it worked for me). Can you try:

    analyses=cds_srr(adeInfo.adeCurrentResultsPath)
    signals=cds_srr(adeInfo.adeCurrentResultsPath,'sp-sp')
    signals.S_Param

    and post what you get?

    Regards,

    Andrew.

  • Curtisma
    in reply to Andrew Beckett

    Hey Andrew:

    Actually, I've been able to stop into the office today.  The commands you provided are also throwing a similar error.

    -Curtis

Reply
  • Curtisma
    in reply to Andrew Beckett

    Hey Andrew:

    Actually, I've been able to stop into the office today.  The commands you provided are also throwing a similar error.

    -Curtis

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