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Encounter Export to Virtuoso (GDS/DEF or OA?)

Kabal
Hello,

 


I have successfully implemented some small design with RTL Compiler, after that
used the Encounter to produce the layout from synthesiz Verilog file. 

Then I did Geometry and Connectivity checks, it all was fine. 

Now I want to export the layout to Virtuoso for verification and integration in other modules, and here I have a huge problem.

If I am correct there are two routes:
1) Export DEF and GDS, then in Virtuoso Import them one after another
2) Export OA and in Virtuoso Import OA

#2 doesnt work for me, since during export from Encounter it wants streamMap file which I seem not to have for this kit 

I tried #1, I export DEF file, then export the GDS file, but when I do streamIN in Virtuoso, some of the wires are not seen, and DRC gives me TONS of errors...

One thing I noticed weird here is: when I export from Encounter GDS, and I dont have streamOut.map file, it creates it himself.
But when I want to export OA, and do not have that file either, it complains that it cant find this file. Why?
 
And in general, what is the best flow for export of Layout from Encounter to Virtuoso of version 6? (becuase I see some people suggest not to use GDS for version 6 but use OA) but again... OA doesnt want to export and I am not quite sure where to get the map file, the one which comes with kit is not being accepted by Encounter 
Parents

  • The method I always use is to export GDS from EDI. (You don't need GDS and DEF, just GDS). You can easily create the Encounter stream map file yourself. Sounds like you have the template to start with, just make sure it includes everything you need. The format is well documented in the EDI docs.

    You can output a merged GDS, which will include the full layouts of your std cells, IP, etc if you point to the GDS files of those in the streamOut command, and then stream that in to a clean Virtuoso library. Or you can output an un-merged GDS and read it into a Virtuoso session where you are pointing to the already-existing layout libraries. Sounds like that's the missing piece in what you tried so far, since you only had abstracts. 

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  • The method I always use is to export GDS from EDI. (You don't need GDS and DEF, just GDS). You can easily create the Encounter stream map file yourself. Sounds like you have the template to start with, just make sure it includes everything you need. The format is well documented in the EDI docs.

    You can output a merged GDS, which will include the full layouts of your std cells, IP, etc if you point to the GDS files of those in the streamOut command, and then stream that in to a clean Virtuoso library. Or you can output an un-merged GDS and read it into a Virtuoso session where you are pointing to the already-existing layout libraries. Sounds like that's the missing piece in what you tried so far, since you only had abstracts. 

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