[PCB_FORUM] Re: Allegro 15.2 so59- Via Issue
- From: "Scott, Ron" <rg-scott@xxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Wed, 16 Mar 2005 13:01:25 -0600
Mitch,Gerry
To address 2 replies at once, the vias do have flash and are in the
correct directory. I have six constraint area identified and I had the
CONSTRAINT_AREA turned off. I then realized I had added the via to a
constraint area that didn't need it and that was my "problem".
Regards,
Ron Scott C.I.D.
Texas Instruments
Tel: 214.567.4715
Cell: 972.816.7978
rg-scott@xxxxxx
-----Original Message-----
From: Mitch S. Morey [mailto:cadpro2k@xxxxxxxxxx]
Sent: Wednesday, March 16, 2005 12:47
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Allegro 15.2 so59- Via Issue
Hi Ron,
Are you sure you're adding them to the correct "Physical" constraint
listing, according to the net constraints you're routing. Either you're
not adding them to the correct constraint or it's not finding the vias
you need.
One way or the other, it should find them, and add to the listing.
Good day.
Mitch
> Gerry,
>
> I wound up doing what you recommended by removing planes. One down,
> now all I have to do is figure out why when I add vias to the current
> via list they do not appear in the drop down when routing.
>
>
> Regards,
>
> Ron Scott C.I.D.
> Texas Instruments
> Tel: 214.567.4715
> Cell: 972.816.7978
> rg-scott@xxxxxx
>
>
>
> _____
>
> From: Gerry Meier [mailto:gerry.meier@xxxxxxxxxxxxxx]
> Sent: Wednesday, March 16, 2005 10:15
> To: icu-pcb-forum@xxxxxxxxxxxxx
> Subject: [PCB_FORUM] Re: Allegro 15.2 so59- Via Issue
>
>
> Ron,
>
> In version 15.2 when you use the copy command you can check the
> "retain net of vias" located in the options tab.
> This will keep the vias you are copying associated to the net they
> are on.
>
> If you are clipping in a bunch of vias and do not want them to connect
> to ground planes?
> Temporarily change your ground planes in the cross section to negative
> - clip in - then change them back.
> If you have planes on signal layers with routing - move the planes
> temporarily off the board.
> move ix 10000 then move it back ix -10000.
>
> No "add ons" required,
> Gerry
>
>
> Gerry Meier
> Sr. PCB Designer
> Freedom CAD Services, Inc.
> Voice: (603) 864-1300 x1350
> Alt. Voice: (386) 753-0048
> Email: gerry.meier@xxxxxxxxxxxxxx
> visit our website at<http://www.freedomcad.com
> <http://www.freedomcad.com/>
>
>
>
>
>
> _____
>
> From: Scott, Ron [mailto:rg-scott@xxxxxx]
> Sent: Tuesday, March 15, 2005 6:43 PM
> To: icu-pcb-forum@xxxxxxxxxxxxx
> Subject: [PCB_FORUM] Allegro 15.2 so59- Via Issue
>
>
>
> All,
>
> I recently downloaded the current ISR and now some unsavory things
> have
> happened:
>
> 1. If I have a standalone via, it is assigned a ground net
> charateristic. I like to group vias when working with power
> distribution but it doesn't do me any good when all the standalone
vias are ground.
>
> 2. Very elementary, but I can't add vias to my via list. I can
> physically add them to the chart but they don't show up in the design
> drop down.
>
> What happened?
>
>
> Regards,
>
> Ron Scott C.I.D.
> Texas Instruments
> Storage Products Group
> Tel: 214.567.4715
> Cell: 972.816.7978
> rg-scott@xxxxxx
>
>
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