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After P & R in Encounter, I stream out the design to gds. Then I stream in the file in Virtuoso.
I can see all the instances and the related power rings. But I can't see the routing wires.
What may be the problem?
The first thing I would check is make sure you have the NET object in your streamOut mapping file:
layerName NET gdsNum dataType
Then make sure you have that gdsNum/dataType defined in your mapping file for streaming into Virtuoso.
In reply to wally1:
Yes, I can find them in both two files.
But I can see the nets for the power ring and power connections in the Virtuoso.
Do power ring and interconnections use different layers?
In reply to quiet:
Special Nets (typically power nets) and Signal Nets (also referred to as regular nets) are different object types in the Encounter database. So in the streamOut mapping file you'll specify them separately although you can map them to the same GDS layer number and datatype:
layerName NET gdsNum dataType # This is for signal nets
layerName SNET gdsNum dataType # This for special nets
If the mapping files are correct and you have the layers displayed properly in Virtuoso, I'm not sure why you would not see them. I suggest opening a Service Request to get help with debugging this further.