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 Problems Importing OA Design from Virtuoso into Encounter 

Last post Mon, Jan 10 2011 5:32 PM by TruLogic. 0 replies.
Started by TruLogic 10 Jan 2011 05:32 PM. Topic has 0 replies and 1519 views
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  • Mon, Jan 10 2011 5:32 PM

    • TruLogic
    • Not Ranked
    • Joined on Mon, Jan 10 2011
    • Posts 1
    • Points 5
    Problems Importing OA Design from Virtuoso into Encounter Reply

    Hello, 

    While trying to perform place and route using Encounter I'm "encountering" errors importing my design from Virtuoso. When I try to import the design, I get the following:

    Reading tech data from OA Library 'NCL' ...
    FE units: 0.001 microns/dbu, OA units: 0.001 microns/dbu, Conversion factor: 1
    **WARN: (ENCOAX-775):   Layer 'OVERLAP' has already been defined in Encounter database, the contents will be skipped.
    **WARN: (ENCOAX-713):   Unsupported Layer direction for layer 'RX'. Check the layer information in OA technology database.
    **ERROR: (ENCOAX-719):  Pitch of layer 'RX' is 0. Check the layer information in OA technology database.
    **ERROR: **ERROR: (ENCSYT-16006):       Error in reading LEF information from OA reference libraries. Check the OA database provided.

    RX is the active layer and should not be routable, however, Encounter is looking for pitch information. This layer should not be used in place and route at all. The only reason I can think of that Encounter might need it would be in RX_M1 vias. How do I tell Ecnounter to ignore this layer? Could I change the prRules section of my technology file? Here is that section of my tech file:

    prRules(

     prRoutingLayers(
     ;( layer                       preferredDirection  )
     ;( -----                       ------------------  )
      ( PC                           "halfRoute" )
      ( RX                           "halfRoute" )
      ( M1                           "horizontal" )
      ( M2                           "vertical" )
      ( M3                           "horizontal" )
      ( M4                           "vertical" )
      ( M5                           "horizontal" )
      ( M6                           "vertical" )
      ( M1_2B                        "horizontal" )
      ( M2_2B                        "vertical" )
     ) ;prRoutingLayers

     prViaTypes(
     ;( device viewName             viaType    )
     ;( ---------------             -------    )
      ( ("PC_M1" "symbolic")    "default"  )
      ( ("RX_M1" "symbolic")    "default"  )
      ( ("M1_M2" "symbolic")    "default"  )
      ( ("M2_M3" "symbolic")    "default"  )
      ( ("M3_M4" "symbolic")    "default"  )
      ( ("M4_M5" "symbolic")    "default"  )
      ( ("M5_M6" "symbolic")    "default"  )
      ( ("M6_M1_2B" "symbolic")    "default"  )
      ( ("M1_2B_M2_2B" "symbolic")    "default"  )
     ) ;prViaTypes

     prRoutingPitch(
     ;( layer                pitch )
     ;( -----                ----- )
      ( "M1"         (plus (techParam "grM1Width") (techParam "grM1Space")) )
      ( "M2"         (plus (techParam "grM2Width") (techParam "grM2Space")) )
      ( "M3"         (plus (techParam "grM3Width") (techParam "grM3Space")) )
      ( "M4"         (plus (techParam "grM4Width") (techParam "grM4Space")) )
      ( "M5"         (plus (techParam "grM5Width") (techParam "grM5Space")) )
      ( "M6"         (plus (techParam "grM6Width") (techParam "grM6Space")) )
      ( "M1_2B"         (plus (techParam "grM1_2BWidth") (techParam "grM1_2BSpace")) )
      ( "M2_2B"         (plus (techParam "grM2_2BWidth") (techParam "grM2_2BSpace")) )
     ) ;prRoutingPitch

    ) ;prRules

     

     

    Thank you for your help.

    • Post Points: 5
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Started by TruLogic at 10 Jan 2011 05:32 PM. Topic has 0 replies.