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Problem: Missing or invalid expression

Emmanuele

Hi to everybody.
I'm using Design Entry HDL (in Cadence SPB 16.01).
I would like to know if it's possible to define the value of an attribute (say, the resistance of a resistor) depending on the istantaneous value of a voltage or a current in the circuit.
I know that it's possible to define values which depend on constants, or fixed parameters; but I'd like to define comething more complex.
For instance, I'd like to define a resistor with a resistance depending on a function of the integral of the power dissipated in its (ie R*I^2).

I read some information on the manuals, but trying to run the simulation with the modified attributes I keep on getting "ERROR -- Missing or invalid expression" or the like...
Any suggestions?
Thanks a lot,
Emmanuele

  • Khurana

     Yes, I think you can do that but not sure how exactly.

     There's an OrCAD forum at http://www.orcad.com/forums/ so try there.

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