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| Computers Forum Index » Computer - Cadence » Can't understand this error in IC610... |
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 Posted: Tue Oct 20, 2009 8:58 am |
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Guest
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Hi,
I'm trying to plot the gsd parameter of a MOS transistor during DC
sweep. I have done "save M:oppoint" and simulation goes ok. Then from
results browser I'm able to plot gds vs. the sweep parameter in
wavescan. What I wanted to do next was to input this waveform in
calculator, do some processing, namely invert it and plot again. While
I try to plot it from calculator though, I get the following error:
- Warning -
<Calculator>
Evaluation error(ERROR : ("quotient" 0 t nil ("*Error* quotient:
can't handle (1 / nil)"))). Expression: 1/getData("/MN:gds" ?
resultsDir "/home/simulation/HW4_pr3/spectre/schematic" ?result "dc-
dc")
- Warning -
<Calculator>
Evaluation error(Unknown scalar data type: nil). Expression: getData
("/MN:gds" ?result "dc-dc")
As far as I understand it, it says that the denominator is 0 (nil).
However, I just got it from wavescan, so it can't be nil. Even if I
try to put it in the calculator and plot from there, without any
processing it still gives the same error. I tried doing the same
procedure on a regular AC analysis, just plotting node voltages from
results browser and from calculator. It works without a problem. Can
anyone help, please? Thanks |
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| Tarek... |
| Posted: Tue Oct 20, 2009 12:33 pm |
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Guest
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one way around this is to plot gds in wavescan, open calculator,
select wave, click on the waveform in wavescan, then change the
calculator expression to 1/waveXY() then plot that. however that won't
work if you want to make than an output in ADE. i'm sure there's a
better way. |
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The time now is Thu Dec 10, 2009 11:51 pm
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