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SKILL: Print voltage to a text file in ADE XL over corners

Anonymous
Anonymous

Hello,

I have a simple SKILL script that I load and run in the CIW window after an ADE-L simulation finishes to output a sampled waveform to a text file for Matlab post processing.  A simplified example follows:

writePort = outfile("f1.txt")

for( i 0 Num_pts-1

   tx = i*t_clk

   this_t = t_start + tx

   v1 = value(VT("/v1node") this_t)

   fprintf(writePort "%10.6g " v1)

)

fprintf(writePort "\n")

The problem is when I try this after running a corner sweep in ADE-XL I get "srrWave:0x51f13e70" type of data.  I assume the voltage is now a structured array, with multiple waveforms (one per corner), and I need to use a function to access each corner data waveform separately.  What is the easiest way to do this?

I have played with ocnPrint() which does indeed work.  However, it also outputs column data with corner information spread throughout the numerical data in the file.  This makes the file bigger and requires more text processing (e.g., slower) in Matlab.  I was wondering if there was another solution closer in nature to my original script.

Many thanks in advance for any tips!

Kind regards,

Chris

Parents
  • Anonymous
    Anonymous
    Hi Andrew,

    Thanks for your quick response. That's a great idea. However, I'm running Matlab locally on my PC and neither it nor our Cadence installation seem to show it being installed. For the moment I think I'd like to find the next best alternative, as I suspect getting this installed and running can become a bit of a headache. :)
    Do you know how I could simply replace my "fprintf()" statement with a function that would split it into multiple waveforms, one per corner?

    Thanks again,
    Chris
Reply
  • Anonymous
    Anonymous
    Hi Andrew,

    Thanks for your quick response. That's a great idea. However, I'm running Matlab locally on my PC and neither it nor our Cadence installation seem to show it being installed. For the moment I think I'd like to find the next best alternative, as I suspect getting this installed and running can become a bit of a headache. :)
    Do you know how I could simply replace my "fprintf()" statement with a function that would split it into multiple waveforms, one per corner?

    Thanks again,
    Chris
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