[PCB_FORUM] Re: diff pairs
- From: "Austin Franklin" <austin@xxxxxxxxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Wed, 24 Aug 2005 14:50:51 -0400
Hi Mike,
> You cannot use Constraint Manager to set up differential pairs rules for
> differential pairs that have per layer routing rules, you can only use the
> Constraint System (old form) and forgo the CM, that was the point.
I believe you can. We do it for line width changes due to different layer
impedance. If I remember right, I do something like set up rules for all
like rules in CM, and set the spacing rules in PDR. Seems to work fine in
15.2 for us. I can check in more detail if you want.
Regards,
Austin
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