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  3. Issues in shielding

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Issues in shielding

PramodSabnis
PramodSabnis over 15 years ago

 I am facing this peculiar issue while trying to do shielding on clock nets.

 The flow followed is as follows:

- Set attributes on clock nets

- Apply the attribute in clock spec file

 

I also set the following variables:

- setNanoRouteMode -routeDeferredShield true

Router carries out shielding at the end of routing. However, what I see is that this ends with a plenty of "Wire Extension" category of DRCs on ths shield nets (not the shielded ones).

Has anyone seen this behaviour? How do I fix these violations in an automated manner (there are plenty of those so, manual fix is ruled out)?

 

Best regards,

Pramod

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  • BobD
    BobD over 15 years ago

    Hi Pramod,

    Thanks for your reply.  Sounds like you're getting helpful advice from your AE- I'm glad to hear that.

    8.1.s207 is USR1.  The version I'd suggest you pick up is SOC_EDI8.1_USR3_s338.  You can get it here:

    http://downloads.cadence.com

    • Select your platform
    • Select SOC81
    • Select USR3

    The problems you're seeing continue to sound similar to what I heard from the other customer I worked with.  Please do test this newer version and let us know if it resolves the issue either way.  If it does resolve the issue, it would be good for others to know about, and if it does not then we'll want to make sure the software is repaired so it handles the situation automatically.

    Thanks!
    Bob

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  • BobD
    BobD over 15 years ago

    Hi Pramod,

    Thanks for your reply.  Sounds like you're getting helpful advice from your AE- I'm glad to hear that.

    8.1.s207 is USR1.  The version I'd suggest you pick up is SOC_EDI8.1_USR3_s338.  You can get it here:

    http://downloads.cadence.com

    • Select your platform
    • Select SOC81
    • Select USR3

    The problems you're seeing continue to sound similar to what I heard from the other customer I worked with.  Please do test this newer version and let us know if it resolves the issue either way.  If it does resolve the issue, it would be good for others to know about, and if it does not then we'll want to make sure the software is repaired so it handles the situation automatically.

    Thanks!
    Bob

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    • Vote Up 0 Vote Down
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