adding routing constraints in OA

mims — Sat, 04 Jul 2009 11:14:53 GMT

Hi,

I want to use Virtuoso Custom Router or Virtuoso Chip Assembly Router to route automatically parts of layout design. I see differences in defining routing constraints in CDBA and OA. In CDBA lpps can be specified as keepouts for other lpp-s in the iccKeepouts section of the VCR file:

list( "=>" list( '("keepout_layer" "keepout_purpose ) '("routing_layer" "routing_purpose") "routing" t )

In OA the syntax is different and I am not able to find how to specify lpps instead of just layers...

keepouts =
keepout_layer => routing_layer

Can someone please point me to some documentation that I am missing.

Thanks!

Custom IC SKILL

adding routing constraints in OA