[PCB_FORUM] Re: Using an "Electrical CSET" vs a "Constraint Set" for diff pairs...

This was addressed in 15.5 (if I remember correctly)

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-----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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