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Layout (??) - Constraint Group error

analogy over 10 years ago

Came across this error a while back :

Andrew Beckett over 10 years ago

Looks like your library is not either attached or referencing the PDK library, but is attached to the default (cdsDefTechLib) library instead.
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analogy over 10 years ago

Ok.How do I check that ?
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analogy over 10 years ago

And Andrew, if I need gds of gpdk045 ind_A inductor (flattened), the approach should be:

1.Copy ind_a from gpdk045 to working library

2.open layout cell of ind_a

3.Run DRC

4.Go to View>Hiearchy>Flatten

Is the right ?
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Andrew Beckett over 10 years ago

analogy said:
Ok.How do I check that ?

Use Tools->Technology File Manager, and then use the Graph button in the Utilities section of the toolbox to see what technology libraries are associated with your design library.

Andrew
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Andrew Beckett over 10 years ago

analogy said:
And Andrew, if I need gds of gpdk045 ind_A inductor (flattened), the approach should be:

I would not copy it, but place an instance of it with the appropriate parameters (since it's a pcell, I believe), and then use Edit->Hierarchy->Flatten, remembering to turn on the "flatten pcells" checkbox.

I'm not sure flattening a copy of a pcell would stop it being a pcell (I didn't check).

Regards,

Andrew.
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Charanraj Mohan over 8 years ago

Hi Andrew, I too have the same issue. When I went Tools--> Technology, i can see cdsDefTechLib. How to solve this issue ?
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Andrew Beckett over 8 years ago

You probably just need to use the Attach on the Tools->Technology form to re-attach the library to the technology library. I don't know how that broke in your case (maybe the library it was attached to has been renamed, or is no longer in your cds.lib?)

Regards,

Andrew.
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