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connectivity check after p&R

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Hi;
Thank you for the help.
Since this is my first time to use encounter, I have many problems.
When I am done with P&R and did connectivity check, I have connection problems with vdd and vss.
I have already done the following.

sroute -nets {vdd vss}

but still have this problem.
Can I check if this is a real problem?
If so, how can I solve this problem?

Thank you so much


Originally posted in cdnusers.org by semicond
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  • Hi everyone,

    I have the same problem of conectivity too:

    Design Name: cordic
    Database Units: 1000
    Design Boundary: (0.0000, 0.0000) (1267.7200, 1267.7200)
    Error Limit = 1000; Warning Limit = 50
    Check all nets
    Net vdd: special open.
    Net gnd: special open.

    Begin Summary
        4 Problem(s) [200]: Special Wires: Pieces of the net are not connected together.
        4 total info(s) created.
    End Summary

    End Time: Sat Mar 27 12:24:01 2010
    ******** End: VERIFY CONNECTIVITY ********
      Verification Complete : 4 Viols.  0 Wrngs.

    Then I've used the following command:

     sroute -noPadRings -jogControl { preferWithChanges differentLayer } -nets { gnd vdd}

    but the terminal said that:

    Begin power routing ...
    **WARN: (SOCSR-1254):    Net vdd does not have block pins to be routed. Please check net list.
    **WARN: (SOCSR-1256):    Net vdd does not have CORE class pad pins to be routed.
        Please check net list or port class.
    Net vdd does not have AREAIO class pad pins to be routed.
        Please check net list or port class.
    **WARN: (SOCSR-1254):    Net gnd does not have block pins to be routed. Please check net list.
    **WARN: (SOCSR-1256):    Net gnd does not have CORE class pad pins to be routed.
        Please check net list or port class.
    Net gnd does not have AREAIO class pad pins to be routed.
        Please check net list or port class.
     

     Would you please tell me where is the source of this error? 

    Thank you very much.

     

     

     

Reply

  • Hi everyone,

    I have the same problem of conectivity too:

    Design Name: cordic
    Database Units: 1000
    Design Boundary: (0.0000, 0.0000) (1267.7200, 1267.7200)
    Error Limit = 1000; Warning Limit = 50
    Check all nets
    Net vdd: special open.
    Net gnd: special open.

    Begin Summary
        4 Problem(s) [200]: Special Wires: Pieces of the net are not connected together.
        4 total info(s) created.
    End Summary

    End Time: Sat Mar 27 12:24:01 2010
    ******** End: VERIFY CONNECTIVITY ********
      Verification Complete : 4 Viols.  0 Wrngs.

    Then I've used the following command:

     sroute -noPadRings -jogControl { preferWithChanges differentLayer } -nets { gnd vdd}

    but the terminal said that:

    Begin power routing ...
    **WARN: (SOCSR-1254):    Net vdd does not have block pins to be routed. Please check net list.
    **WARN: (SOCSR-1256):    Net vdd does not have CORE class pad pins to be routed.
        Please check net list or port class.
    Net vdd does not have AREAIO class pad pins to be routed.
        Please check net list or port class.
    **WARN: (SOCSR-1254):    Net gnd does not have block pins to be routed. Please check net list.
    **WARN: (SOCSR-1256):    Net gnd does not have CORE class pad pins to be routed.
        Please check net list or port class.
    Net gnd does not have AREAIO class pad pins to be routed.
        Please check net list or port class.
     

     Would you please tell me where is the source of this error? 

    Thank you very much.

     

     

     

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