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HELP: Warnings on setting technology library name

frasheed

 Hello,

I am writing a short code to set the technology library property of the new library same as the old libraray. When I use the function:

techSetTechLibName(ddGetObj(newLib) oldLib )

 

*WARNING* ddGetObjLib: Was passed an Invalid Id (0x203763a0).

*WARNING* ddGetObjLib: Was passed an Invalid Id (0x1dc20fa0).

*WARNING* ddGetObjLib: Was passed an Invalid Id (0x1d72f3b0).

*WARNING* ddGetObjLib: Was passed an Invalid Id (0x1aa5cbb0).

*WARNING* ddGetObjLib: Was passed an Invalid Id (0x1e57d7c0).

*WARNING* ddGetObjLib: Was passed an Invalid Id (0x1da91fc0).

*WARNING* ddGetObjLib: Was passed an Invalid Id (0x1e567bc0).

*WARNING* ddGetObjLib: Was passed an Invalid Id (0x1d741fd0).

*WARNING* ddGetObjLib: Was passed an Invalid Id (0x1eb66bd0).

*WARNING* ddGetObjLib: Was passed an Invalid Id (0x1d342ff0).

*WARNING* ddGetObjLib: Was passed an Invalid Id (0x1cbd0ff0).

*WARNING* ddGetObjLib: Was passed an Invalid Id (0x1ded2ff0)

 

please can anyone tell me that why I am gettings these warnings ?

  • theopaone

     What is oldLib?

    Ascii name of Design Library: techSetTechLibName( ddGetObj(newLib) techGetTechLibName( ddGetObj(oldLib) ) )

    Database ID of design library:  techSetTechLibName( ddGetObj(newLib) techGetTechLibName(oldLib) )

    Ascii name of Tech Library: techSetTechLibName( ddGetObj(newLib) oldLib) )

    Database ID of Tech library:  techSetTechLibName( ddGetObj(newLib) oldLib~>libName )

    One of these should work.

    Note to Andrew or Lawrence:

    I think the documentation (IC616, June 2014) is incorrect, the second argument is t_libName is specified as text but the example is:  techSetTechLibName(libID ddGetObj("libName"))

     Ted

  • frasheed

     Hey Ted,

     

    Thanks for replying. When I enter one of your commands via CIW then its not giving error but when I run them through skill file then I am getting warnings and every time I run the code the warnings get increases . 

    " oldLib" is the name of the previous library.

     

  • theopaone

     What release are you on?

    Is the oldLib the tech library or a design library?

    Are you using attached or referenced tech libraries?

     

  • frasheed

    we have virtuos 6.1.5, Sorry I am new to cadence so I don't know the difference between design and technology libraray, The oldLib is under libraraies and it has many devices (cell). I am using attach libraries.

  • theopaone

     A technology library (techLib) is created when an ascii techfile is compiled into it. A techLib contains the layer and purpose definitions as well as via defs and other technology specific data. In addition, it may have primitive cells such as pcells used in designs. You can tell a techLib because the library directory contains a tech.db file.

    A design library uses the information from a techLib  when creating data for your design. The techLib can be attached (one techLib for the design) or it can be referenced (multiple techLibs support the design - see Virtuoso Technology Data User Guide). If it is the latter, it will contain a tech.db file, the former does not.

    Your error messages look like it is looking for some data which in the original techLib of newLib, changing the techLib makes that data invalid. Do you have any open designs when doing this? It could have stored some data (via definitions, etc.) in VM and now can't find the original references.

    Maybe this is one for customer support.

    Ted

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