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How do I keep Calibre LVS from getting confused between parallel paths?

Question asked by larry.greenhouse on Jan 7, 2009
Latest reply on Jan 8, 2009 by chris_balcom

 

I have a circuit that has parallel paths that end up in floating nets.

 

 

At a low level in the hiearchy, these blocks pass LVS, but as I get higher in the hierarchy, LVS starts swapping some of the wires and reporting mismatches.

 

 

The end points of these nets are not texted and are floating, so I am confused as to why LVS does not arbitrarily resolve the wire names.

 

 

The only solution I have found at this point is to "uniquify" one of the paths by inserting a metal resistor in both the layout and schematic.

 

 

Is there a switch or setting I can use so the Calibre LVS will resolve these types of paths?

 

 

Thanks,

 

 

Larry

 

 

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