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Failing to plot expressions that include variables in ADE (G)XL

LuisGutierrez

Hi all,

I'm having problems when trying to plot expressions that include variables inside ADE XL. Specifically, when I try to plot:

(inl clip(idiff_idac 5.7e-05 7.25e-05) VAR("ilsb") ?mode "auto" ?crossType "rising" ?delay 5.7e-05 ?units "lsb" ?nbsamples nil)

It fails to do so. When I check the icfb messages, the expression interpreter has changed the syntax of the VAR("ilsb") to VAR(\"ilsb\"), so I suppose is treating it like a signal or something, which is wrong. However, any calculations derived from this expression (such as finding the maximum, appear to work OK (I don't get evaluation error). I tried replacing VAR("ilsb") with eval( VAR("ilsb") 0) without success.

It is something similar as described in this post:

http://community.cadence.com/cadence_technology_forums/f/38/p/26802/1329574#1329574

That post is over 2 years old so I wonder if there hasn't been any solution made available as of now.

Regards,

Lucho.

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  • Andrew Beckett

    Hi Lucho,

    Without testing it, I'm not sure whether the specific issue (which will be with the inl  function) has been fixed. The \"ilsb\" bit is probably irrelevant because that just suggests the whole expression is part of a string somewhere. I'm not sure which version you're using either.

    Anyway, the usual method I use is to wrap the expression with famMap - so something like:

    famMap('inl clip(idiff_idac 5.7e-05 7.25e-05) VAR("ilsb") ?mode "auto" ?crossType "rising" ?delay 5.7e-05 ?units "lsb" ?nbsamples nil)

    Anyway, I'd suggest you test in IC617 if possible and see if it's a still issue, and report to customer support (I just don't have time today to put together a testcase to try this - even answering this question at all is a stretch today!)

    Regards,

    Andrew

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  • Andrew Beckett

    Hi Lucho,

    Without testing it, I'm not sure whether the specific issue (which will be with the inl  function) has been fixed. The \"ilsb\" bit is probably irrelevant because that just suggests the whole expression is part of a string somewhere. I'm not sure which version you're using either.

    Anyway, the usual method I use is to wrap the expression with famMap - so something like:

    famMap('inl clip(idiff_idac 5.7e-05 7.25e-05) VAR("ilsb") ?mode "auto" ?crossType "rising" ?delay 5.7e-05 ?units "lsb" ?nbsamples nil)

    Anyway, I'd suggest you test in IC617 if possible and see if it's a still issue, and report to customer support (I just don't have time today to put together a testcase to try this - even answering this question at all is a stretch today!)

    Regards,

    Andrew

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