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Disable CM updates or Audits during Component Replace through tcl

PatEscher

Hello, 

we have written TCL code which programmatically replaces a component instance on the schematic with another one from the CIS library.

For this we do a full replace, set all the properties and also consider any user properties and merge them. so a quite complex process, but everything is working fine.

But we see some performance issues when doing this in OrCAD.

Apparently OrCAD tries to update CM connectivity and XNets when we do this. we see in the status bar messages like "Pushing Connectivity changes in CM" , "ECSet Audit on Net Connectivity" Change, etc.

is there any possibility to turn these updates off when we do the replace of the instance (it is not a single instance, but can be dozens or hundreds) and then later on turn it on again and do the 'full update' ?
Can this be done through a tcl command, maybe like DboDesign_SetConnectivityUpdateTracking or maybe some Preference Settings?

Thanks

Patrick

  • TechnoBobby
    0

    Hi  ,

    Just to narrow this down, these connectivity updates are typically triggered when Constraint Manager is active in Capture. Could you please confirm if Constraint Manager is enabled from Schematic Capture in your setup and whether you are actively using it in this design? Also, it would be helpful to know which Capture version you are currently using.
    These CM push and ECSet audit messages are generally observed only when Constraint Manager integration is enabled, so this information will help in understanding the behavior more accurately.

  • PatEscher
    0 in reply to TechnoBobby

    I would need to confirm this with our client, but I am pretty sure that Constraint manager is enabled.

    Cadence Version is SPB 23.1

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