Switching between DC Operating Points & Component Parameters

Discussion in 'Cadence' started by Gerd, Apr 25, 2005.

  1. Gerd

    Gerd Guest

    Hi,

    When i annotate DC Operating Points after a simulation, it seems i
    can't go back to annotating the original Component Parameters. This
    warning pops up for every instance label:

    *WARNING* artFindPropByName: Unable to locate property for inst="M0"
    property-name="paramEvaluate"

    I'm doing this exercise with a single nMOS transistor for which some of
    my BASE CDF parameters in the "Interpreted Labels Information" section
    look like this:

    * paramDisplayMode = parameter
    * paramEvaluate = literal
    * paramSimType = DC

    After running a DC analysis and clicking: Results->Annotate->DC
    Operating Points, the correct DC operating point values appear, but
    when i check again the BASE CDF for the nMOS component, the above
    settings have changed to:

    * paramDisplayMode = parameter
    * paramEvaluate = not set
    * paramSimType = not set

    EFFECTIVE CDF has:

    * paramDisplayMode = opPoint
    * paramEvaluate = not set
    * paramSimType = DC

    Going back to Results->Annotate->Component Parameters results in the
    warning message above. I guess the baseline is: how can 'paramEvaluate'
    change from 'literal' to 'not set' in the BASE CDF ?
    Or is there something else going on?


    Thanks,
    Gerd
     
    Gerd, Apr 25, 2005
    #1
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