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Net Tracing - Skill

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Hello All ,

I have a script which I use to calculate a particular net's  Net Length, total net resistance, Capacitance (w.r.t ground).
But the drawback is that I have to select the entire Net before invoking the "NetLength" Function.

So I want a script which can trace the entire net and give a list of metals, vias, instances that
belong to this net. i.e I will select any one metal/instance/via  of a net and the code should trace the entire net and give me the desired o/p.

NOTE: Instances here refer to instances/mosaics of vias.

Thanks,
Sathya


Originally posted in cdnusers.org by rimser9
Parents

  • I don't see why you can't use dbGetTrueOverlaps - this should work fine. Maybe if you explained what your actual problem is (i.e. what you're doing, what your code looks like, what the error was, what is going wrong), then somebody might be able to spot what you're doing wrong? At the moment there really isn't enough to go on.

    Currently (in IC61X) you can use Mark Net and then save the resulting shapes to another cellView, but there isn't currently a non-UI version of this (so you'd have to call the leHiMarkNet() and leHiSaveAllHighLightMarkNet() functions to save the shapes to another cellView). There's an enhancement request for a non "Hi" version of these functions.

    Kind Regards,

    Andrew.

Reply

  • I don't see why you can't use dbGetTrueOverlaps - this should work fine. Maybe if you explained what your actual problem is (i.e. what you're doing, what your code looks like, what the error was, what is going wrong), then somebody might be able to spot what you're doing wrong? At the moment there really isn't enough to go on.

    Currently (in IC61X) you can use Mark Net and then save the resulting shapes to another cellView, but there isn't currently a non-UI version of this (so you'd have to call the leHiMarkNet() and leHiSaveAllHighLightMarkNet() functions to save the shapes to another cellView). There's an enhancement request for a non "Hi" version of these functions.

    Kind Regards,

    Andrew.

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