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 Special routes with opens 

Last post Wed, Jul 9 2014 8:07 AM by wally1. 1 replies.
Started by Stewan 09 Jul 2014 07:10 AM. Topic has 1 replies and 476 views
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  • Wed, Jul 9 2014 7:10 AM

    • Stewan
    • Not Ranked
    • Joined on Mon, Mar 31 2014
    • GRENOBLE, Isere
    • Posts 1
    • Points 20
    Special routes with opens Reply

    Hello everybody,

    I am working on floorplanning of a specific design with macro blocks (RAMs) and I have some issues :
    1) My RAMs aren't connected to VDD/VSS

    2) Number of Core ports routed: 0  open: 27478
        Number of Followpin connections: 13739

    3) When I make a verifyConnectivity, I have a message below:
    Error Limit = 1000; Warning Limit = 50
    Check specified nets
    *** Checking Net VDD
    Net VDD: has special routes with opens.
    *** Checking Net VSS
    Begin Summary
        84 Problem(s) (ENCVFC-200): Special Wires: Pieces of the net are not connected together.
        84 total info(s) created.
    End Summary

    NB : I am using EDI v14.10.000

    globalNetConnect VSS -type pgpin -pin VSS -instBasename * -override -verbose
    globalNetConnect VDD -type pgpin -pin VDD -instBasename * -override -verbose
    ..

    verifyConnectivity -nets {VDD VSS} -type special -noAntenna -noWeakConnect -noUnConnPin -noUnroutedNet -error 1000 -warning 50 -geomConnect

    • Post Points: 20
  • Wed, Jul 9 2014 8:07 AM

    • wally1
    • Top 50 Contributor
    • Joined on Mon, Aug 4 2008
    • Bellevue, WA
    • Posts 151
    • Points 2,940
    Re: Special routes with opens Reply

    If the RAMs have boundary pins which should connect to rings and stripes then you need to run 'sroute' with '-connect {blockPin}'. If the RAMs have ring pins then they get connected with addStripe.

    Hope this helps,

    Brian

    • Post Points: 5
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Started by Stewan at 09 Jul 2014 07:10 AM. Topic has 1 replies.