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 RULE LEF_DEFAULT definition for Abstract Generator/Encounter/NanoRoute 

Last post Thu, Apr 19 2012 4:53 PM by stevemc. 5 replies.
Started by eklikeroomys 15 Mar 2011 02:25 AM. Topic has 5 replies and 3235 views
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  • Tue, Mar 15 2011 2:25 AM

    • eklikeroomys
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    RULE LEF_DEFAULT definition for Abstract Generator/Encounter/NanoRoute Reply
    I am using Cadence Abstract Generator to create abstract cell views for a standard cell library. In the Verify Step, I keep getting the following error: Encounter: (NRDB-158) There is no default via from LAYER MET1 to LAYER MET2 in RULE LEF_DEFAULT. I do not know how or where to define this RULE LEF_DEFAULT, please help.
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  • Tue, Mar 15 2011 3:41 AM

    • eklikeroomys
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    Re: RULE LEF_DEFAULT definition for Abstract Generator/Encounter/NanoRoute Reply
    I cant find this RULE LEF_DEFAULT in the technology file
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  • Mon, Jun 27 2011 8:49 AM

    • Alex Soyer
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    Re: RULE LEF_DEFAULT definition for Abstract Generator/Encounter/NanoRoute Reply

    Hello,

     Please look at the LEFDefaultRouteSpec constraint group in you technology file (that you could dump with the technology toolbox).

    All custom vias which are part of the validVia list of the LEFDefaultRouteSpec constraint group will be considered as DEFAULT.

    Thanks,

    Alex

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  • Mon, Jun 27 2011 10:57 PM

    • eklikeroomys
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    Re: RULE LEF_DEFAULT definition for Abstract Generator/Encounter/NanoRoute Reply

     Halo alex,

    This is an old post which has been solved already, I dont know how to remove it,

    thank you

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  • Thu, Feb 9 2012 7:44 AM

    Re: RULE LEF_DEFAULT definition for Abstract Generator/Encounter/NanoRoute Reply

    Hi eklikeroomys,

     I you have resolved this issue, can you please tell me how can I resolve it as I am stuck in same error i.e. There is no default via from LAYER MET1  to LAYER MET2.

    Thanks,

    Qazi

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  • Thu, Apr 19 2012 4:53 PM

    • stevemc
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    Re: RULE LEF_DEFAULT definition for Abstract Generator/Encounter/NanoRoute Reply

    Alex Soyer:
    All custom vias which are part of the validVia list of the LEFDefaultRouteSpec constraint group will be considered as DEFAULT.
     

     

    I'm not finding this to be the case. My techfile has 

       ( "LEFDefaultRouteSpec" nil "LEFDefaultRouteSpec"
        interconnect(
            ( validLayers
                ( M1 M2 M3 M4 M5 M6 M7 )
            )
            ( validVias
                ( M2_M1 M3_M2 M4_M3 M5_M4 M6_M5 M7_M6 )
            )
        ) ;interconnect

     

    and I'm still getting the error during globalDetailRoute

     #ERROR (NRDB-158) There is no default via from LAYER M1 to LAYER M2 in RULE LEF_DEFAULT.

    btw, I'm running Encounter 11.10

    • Post Points: 5
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Started by eklikeroomys at 15 Mar 2011 02:25 AM. Topic has 5 replies.