[PCB_FORUM] Re: Constraint Region in 16.01
- From: "Joe.witten" <joe.witten@xxxxxxxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Wed, 20 May 2009 19:03:38 -0700
I've got the shape assigned and works as far as getting the 4.75mil traces
to route at 4mils. But this is making the PWR_GND route at 4mils also.
That's why I thought by adding the Region-Class PWR_GND and assigning the
referenced Cset of PWR_GND I'd get a 20mil trace.
This is what the Display constraints window is showing:
-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Ed Hickey
Sent: Wednesday, May 20, 2009 4:01 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Constraint Region in 16.01
Is the Region shape assigned to the Region Constraint Object?
In the PCB Editor, select the Region shape with the shape select command
then check the options panel field "Assign to Region" for the Region
constraint object.
One other tip - use the Display - Constraint command to determine how
Allegro resolves physical and spacing constraints
1 pick on the cline for physical info; window around 2 clines for spacing
_____
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Joe.witten
Sent: Wednesday, May 20, 2009 12:57 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Constraint Region in 16.01
I am trying to set a physical rule that allows a 4mil trace in a BGA region,
but still forces a 20mil trace on all power nets. I've got physical
constraints set up for BGA=4mils and PWR_GND=20mils. This still wants to
route at mils. What am I doing wrong?
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