CDF parameters CB running during generate from source

Hello,

Virtuoso XL has the feature to execute callbacks when generating from source:

You can set this with an environment variable as well:

envSetVal("layoutXL" "lxEvalCDFCallbacks" 'boolean t)

Not sure whether this will help you, but you can try.

Regards,

Petar

Hi Petar,

This settings is enable by default, but still only the model CB is the only one executed. There must be something else controlling it.

Hello,

You might try to override the lxCDFCallbackParams CDF parameter value if it is present for the device or augment the device CDF with it and try again. This is as far as I know about this topic.

The value of this parameter is indeed "model", so only the model CB runs :)

Where does this parameter needs to be updated, the schematic symbol or the layout instance? I have a different physical cell defined in the physconfig so the CDF is not the same, but they both have lxCDFCallbackParams defined.

Usually this is a CDF parameter defined at the pCell level and it controls the order at which the callbacks will be executed.
Most of the time this is a hidden parameter, so it is not displayed. You might want to try to update the value to the instances you have as an interim solution in case you don't have access to the pCell code to recompile and update the default value. Otherwise you might want to submit a bug towards your pCell provider.

You can manually forcefully specify the callback execution order to your instances like this:

foreach(inst setof(inst cv->instances member(cv->cellName list("pCellName1" "pCellName2" ...)))
    inst->lxCDFCallbackParams->value = "paramName1 paramName2 paramName3"
);foreach

You observations just confirm that Virtuoso XL and the Generate All From Source do exactly the thing it is prompted to do and specified in lxCDFCallbackParams.

Regards,

Petar