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Access design parameter in Monte Carlo export statement

Octavian over 10 years ago

I have the following:

parameters vdd=1

mc1 montecarlo .....{

.....

export tflip=oceanEval("cross(v(\"outn\" ?result 'tran) 0.5 1 \"falling\" nil nil )")

}

This works but I would like to access the vdd design parameter in the oceanEval expression like this:

export tflip=oceanEval("cross(v(\"outn\" ?result 'tran) vdd/2 1 \"falling\" nil nil )")

I tried the VAR(\"vdd\")/2 but spectre complains that it cannot evaluate the ocean expression.

Any help is appreciated.

--Tavi

Octavian over 10 years ago

Anybody? I'm sure somebody has run into this issue before ....
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Andrew Beckett over 10 years ago

If this was that urgent, you should have contacted customer support. Remember that replies here are done by volunteers in the community and also within Cadence. Personally I've been travelling all week, and so couldn't reply.
You need to use VAR("vdd")/2 in your expression to access the design variable. Assuming everything is consistent that should work.
Andrew.
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Andrew Beckett over 10 years ago

So that would be VAR(\"vdd\") of course. You also need to ensure that you have:
designParamVals info what=parameters where=rawfile
within the montecarlo analysis because otherwise it won't be saving the parameter values for the VAR() function to look up.
Andrew.
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