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Align pins based on connectivity

RK56

Hi,

I'm looking for a function which can align pins to objects with similar net name. For example say I have an instance and pins only in layout. Now I want to place pins directly over the instance's pins.  In Edit->Advanced->Align there is an option to do this but I get the following error.

*WARNING* (LX-3009): Cannot run pin alignment because there are no pin pairs to be aligned.

Can somebody help me? I'm using virtuoso version ICADV12.2-64b 04/13/2016 08:41

-Ramakrishnan

  • Hi Ramakrishnan

    You can do it as follows using the "Pin Placer" function:

    a. Switch to layoutXL using "Launch->Layout XL"
    b. Ensure that there are flight lines linking the top level pins to the pins of the instance
    c. Go to "Place->Pin Placement"
    d. Use "Level-1 pin" as the edge attribute

    Please search for "Placing a Pin on a Lower-level Instance Terminal" in $CDSHOME/doc/fphelp/fphelp.pdf.


    Best regards
    Quek

  • Thanks Quek. I will try your option

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