oa2cdb translation

Tarek,

Don't have time to experiment and try this myself, but it may be related to the fact that lib.defs is not being supported by the Virtuoso tools from IC614 onwards. Now we have an OA plugin which means that  cds.lib is always used (this is to avoid all the trouble with trying to keep lib.defs and cds.lib in sync, when they don't quite share all the syntax).

So try referencing a cds.lib instead, and if that doesn't work, I'd suggest contacting Cadence Customer Support.

Regards,

Andrew.

Hi,

Andrew Beckett said:

but it may be related to the fact that lib.defs is not being supported by the Virtuoso tools from IC614 onwards.

I tried using the oa2cdb from IC6.1.3 and same result, with both cds.lib and lib.defs which were updated via Libray Path Editor before running oa2cdb. I'll get in touch with Cadence Support and hopefully we can resolve this.

Thanks,

Tarek

Hi Tarekh/Andrew

were you able to solve the rpoblem.. I am getting the same

What version of the tools are you using?

OK, I tried this. It does need a lib.defs file still.

So, first you need to do (in your OA directory, where the OA cds.lib is located):

   cdsLibEditor -batchWriteLibdefs lib.defs

Then move to the directory that you want to create the CDB equivalent, and do:

   oa2cdb -lib mylib -cdslibpath /path/to/the/lib.defs

That should work. Bear in mind that oa2cdb is really intended for emergencies only and is not intended to form part of a flow.

Regards,

Andrew.

Thanks Andrew..

 My this problem is solved.. but now I am getting error 

THE CDB technology library <libname> is not valid becuase it does not contain a technology file. Ensure that any CDB technology library involed in the translation contains a techfile.cds file. 

I am specifying the technology file using -tech <filename>

 I am able to solve the technology issue. Now it is working

Hi,

I need some help in oa2cdb conversion. I want to convert the Nangate open source standard cell library PDKv1_3_v2010_12. The base kit associated with it is NCSU-FreePDK3D45-1.1 . Can anyone kindly guide me on how to successfully convert the library from .oa to .cdb ?

After using the following script I get these errors :

SCRIPT:

cdsLibEditor -batchWriteLibdefs lib.defs

oa2cdb -cdslibpath ../lib.defs -lib NangateOpenCellLibrary

ERRORS:

194 cells and 744 cellviews were translated from library 'NangateOpenCellLibrary' in 65.2s.

Message Summary:

WARNING (OACDB-527): Layer-purpose pair '<layerName> <purposeName>' is not     
                     defined in the CDB technology file of library <libName>.
                     
                      Generated 138 times.

ERROR   (OACDB-650): Cannot translate <shapeType> in cellview '<libName>         
                     <cellName> <viewName>' because layer-purpose pair          
                     '<layerName> <purposeName>' is not defined in the CDB      
                     technology file. To translate this object, define the      
                     specified layer-purpose pair in the CDB technology file.
                     
                      Generated 11362 times.

ERROR   (OACDB-653): Cannot translate <number> instance terminals for instance   
                     <instanceName> in cellview '<libName> <cellName>           
                     <viewName>' because the CDB master cellview '<libName>     
                     <cellName> <viewName>' is not available. Ensure that the   
                     master is available in OpenAccess, translate it to CDB     
                     first and rerun the translator for the remaining cells in  
                     the library.
                     
                      Generated 2590 times.

ERROR   (OACDB-670): Cannot translate pin <pinName> for terminal <terminalName>  
                     in cellview '<libName> <cellName> <viewName>' because the  
                     translator failed to find the CDB equivalent for the figure
                     used in the pin. Check the log file for messages indicating
                     why figures were not created.
                     
                      Generated 1602 times.

ERROR   (OACDB-682): Failed to create <textDisplayType> type text display in     
                     cellview '<libName> <cellName> <viewName>' because of an   
                     unexpected exception. This is an internal program error. If
                     you are unable to isolate the problem, contact your Cadence
                     Customer Support representative for help.
                     
                      Generated 801 times.

Did you convert back the technology library first? 

I would ask however, why are you converting an OpenAccess library back to CDB? The last CDB release is IC5141, which was released in 2004 and had its final hotfix in 2011 (over 5 and a half years ago). The oa2cdb route was only ever intended as a "disaster-only" conversion route, and is not something that is being actively maintained, especially this long after the end-of-support of IC5141.

Regards,

Andrew.