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 Connect core ring and Power pads 

Last post Mon, Nov 4 2013 10:49 AM by Kari. 1 replies.
Started by LintonThiago 04 Nov 2013 10:41 AM. Topic has 1 replies and 2535 views
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  • Mon, Nov 4 2013 10:41 AM

    Connect core ring and Power pads Reply

    Hi everyone,

    I can't connect the power pads to the core ring. I tried with different  power pads, core ring width and pad cells. Every time I use special route the encounter display this warning: 

    **WARN: (ENCSR-1256):   Cannot find any CORE class pad pin of net VDD1. Check net list, or change port class in LEF file, or change option to include pin in given range.

    Cannot find any AREAIO class pad pin of net VDD1. Check net list, or change port class in LEF file, or change option to include pin in given range.

    **WARN: (ENCSR-1256):   Cannot find any CORE class pad pin of net VSS1. Check net list, or change port class in LEF file, or change option to include pin in given range.

    Cannot find any AREAIO class pad pin of net VSS1. Check net list, or change port class in LEF file, or change option to include pin in given range.

    Does anyone know what could be the problem?

    Tks, 

    • Post Points: 20
  • Mon, Nov 4 2013 10:49 AM

    • Kari
    • Top 10 Contributor
    • Joined on Tue, Jul 15 2008
    • Cary, NC
    • Posts 693
    • Points 14,275
    Re: Connect core ring and Power pads Reply

    Check the LEF of the pin on the pwr/gnd pad you're trying to connect. It should be CLASS CORE:

        PIN VDD

            DIRECTION INOUT ;

            USE POWER ;

            PORT

            CLASS CORE ;

     

    • Post Points: 5
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Started by LintonThiago at 04 Nov 2013 10:41 AM. Topic has 1 replies.