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ADE Assembler spec extracted from tran simulation will give error

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Hi all,

I have a tran simulation and a condition on a waveform which I want to evaluate as pass/fail in ADE assembler (say I want waveform Va at certain time points to be lesser than Vtarget). So I create an expression which says Va_max: ymax( sample(Va tstart tend "linear" period) ) and in its spec column I insert <Vtarget.

Now Vtarget depends on the tran simulation outcome, i.e. it is the difference of two waveforms at a given rising edge of a signal. Vtarget is correctly calculated by assembler, as it is displayed, as well as Va_max is correctly calculated. But the Pass/Fail column says error instead of pass, fail or near.

I would suppose this is because Vtarget should not depend on the tran simulation? How could I do this properly?

The message is as below

Version used is ICADVM20.1

Thank you very much

Regards

  • To avoid the error, you can probably just use calcVal("Vtarget") but as far as I know, this is not supported anyway (I think it will always pass the spec from a quick search I did - there's a request to support his). You can use variables in specs (using VAR("varName") but I don't believe specs relative to other outputs are supported.

    Of course, you could have an output which is the difference of the two - and then have that <0 or something similar.

    If you want support for calcVal in specs then please contact customer support.

    Andrew

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