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How to use abeLayerFromNet for hierarchical (depth) search of any nets?

santhosh08

Hi, I would like to do a hierarchical  search of any nets as shown below. 

abeLayerFromNet("M1" "VDD" ?outLayer a1)

But with this I can findthe VDD nets in the current hierarchy  only as ?depth is not supported by "abeLayerFromNet" skill function.

Is there any I can search such nets with a name in all hierarchies and use it for any layer operations such as "abeLayerAnd(a1 a2 outLayer)".

I see a another abe function "abeLayerFromCellView" which will do a hierarchical  search but don't have a control of net name.

Please suggest if there is any way we can do the hierarchical search of layers with net names using these functions.

Regards,

Santhosh

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  • Andrew Beckett

    Hi Santhosh,

    I don't believe there's a way of doing this. You should contact customer support.

    Andrew.

  • santhosh08
    in reply to Andrew Beckett

    Thanks Andrew.

     If not by ABE, do you suggest any better way of doing this. When I copy the layers from lower hierarchies, it may not have all the properties coming with it.

    My requirement is like to copy M1 and M2 with VDD net name and drop a VIA1 on the intersection points.

  • Andrew Beckett
    in reply to santhosh08

    Other than doing a hierarchical traversal, doing the operation at each layer, and then transforming the coordinates to the top level and creating the via there, no, I don't have any other suggestions (maybe that suggestion is good enough though!)

    Andrew

  • santhosh08
    in reply to Andrew Beckett

    Thanks Andrew.

     If we have M1 and M2 at different hierarchies then it will become difficult to add Via. Do you have any idea on how to handle such cases.

  • Andrew Beckett
    in reply to santhosh08

    You could traverse the hierarchy, find shapes on particular nets (probably wouldn't be worth using abeLayer options for that, as that would prevent you having an abe session for the top cellView at the same time), and then transform any M1/M2 shapes on those nets up to the top level (transform the point lists) and then use abeLayerOrPtArray to add those transformed shapes into your top-level M1/M2 abe layers, and then you could do your operations.

    Andrew

  • santhosh08
    in reply to Andrew Beckett

    Thanks Andrew, I will try that.

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  • santhosh08
    in reply to Andrew Beckett

    Thanks Andrew, I will try that.

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