[PCB_FORUM] Re: Using an "Electrical CSET" vs a "Constraint Set" for diff pairs...
- From: "Austin Franklin" <allegrolist@xxxxxxxxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Wed, 26 Mar 2008 15:04:30 -0500
Hi George,
I loaded 15.7, and don't see it any different than in 15.2. Unless I missed
something...but the spreadsheet only allows me to use "Electrical Constraint
Sets", not any of the "Constraint Sets" that are setup in
"Physical(Lines/Vias) Rule Set" "Set values...".
Best Regards,
Austin
> -----Original Message-----
> From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
> [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx]On Behalf Of
> george.h.patrick@xxxxxxxxxxxxx
> Sent: Wednesday, March 26, 2008 1:06 PM
> To: icu-pcb-forum@xxxxxxxxxxxxx
> Subject: [PCB_FORUM] Re: Using an "Electrical CSET" vs a "Constraint
> Set" for diff pairs...
>
>
>
> This was addressed in 15.5 (if I remember correctly)
>
> --
> George Patrick
> Tektronix, Inc.
> Central Engineering, EDS Applications Support
> P.O. Box 500, M/S 39-512
> Beaverton, OR 97077-0001
> * 503-627-5272 (voice) * 503-627-5587 (fax)
> http://www.tektronix.com http://www.pcb-designer.com
>
> "Off-Grid and Proud of it!"
>
>
> -----Original Message-----
> From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
> [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Austin Franklin
> Sent: Wednesday, March 26, 2008 11:39
> To: icu-pcb-forum@xxxxxxxxxxxxx
> Subject: [PCB_FORUM] Using an "Electrical CSET" vs a "Constraint Set"
> for diff pairs...
>
>
> Hi,
>
> There appear to be two ways to get the diff pair spacing and gap, but
> only
> one allows differing them by layer. Setting up an "Electrical CSET"
> only
> seems to allow one overall (as in for all layers) space/gap. But, the
> advantage of using the ECSET is you can assign it to a net or multiple
> nets
> using the Constraints Manager spreadsheet using a pulldown menu.
>
> Or, I can setup a "Constraint Set" and select each layer's
> space/gap...but I
> then have to attach this as a property to each and every net manually by
> selecting the nets and attaching this Constraint Set name as a
> NET_PHYSICAL_TYPE attribute.
>
> I prefer the Constraint Set, since it gives me the per layer
> control...but
> the thing that seems to be missing, is the ability to assign a given
> Constraint Set to the nets using the Constraint Manager spreadsheet.
>
> I'm on 15.2. Am I missing something? If not, has this improved on 15.7
> or
> 16?
>
> Regards,
>
> Austin
>
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