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Shape to Route Keepin Spacing

melview1
OrCAD PCB Designer v16.2
 
I am getting the following DRC error, regarding an auto-generated shape (ground or power pours).  I get it on multiple layers with multiple pours:
 
Constraint Name = Shape to Route Keepin Spacing

Required Value = 0 MIL

Actual Value = 0 MIL

Constraint Source = DEFAULT

Constraint Source Type = NET SPACING CONSTRAINTS

Element 1 = Shape(auto-generated) "Gnd, Etch/Inner Signal 2"

Element 2 = Shape "Route Keepin/All"
 
It looks as if my pours go right up to the keepin without any clearance.  This is fine for me since my keepin is pulled back by 25 mils from my board edge.  Reading the DRC error, it looks as if it is adhering to the constraint since the required value is 0 mils and the actual value is 0 mils and there shouldn’t be a DRC error.
 
Does anyone know why this DRC is showing up and/or any settings I can change to make it not appear anymore?  I know I can waive the DRC, but that’s kind of annoying since it happens on multiple designs.  It appears that I can ignore it, but I want to be sure that OrCAD isn’t pointing something out that I am missing.
 
Thanks,

Mark
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  • steve

    If your shape is created before you add the route_keepin then you may occasionally get this. If it was created after the route_keepin the you won't see this because the default behaviour is for the route keepin to clip the shapes. There is a user preference that you can set (if you have added the keepin after the shapes) called shape_rki_autoclip that once the shapes are updated will clip them to the route keepin. This can affect performance though so won't make this a global setting for every board. Next time add the Route Keepin first.

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  • steve

    If your shape is created before you add the route_keepin then you may occasionally get this. If it was created after the route_keepin the you won't see this because the default behaviour is for the route keepin to clip the shapes. There is a user preference that you can set (if you have added the keepin after the shapes) called shape_rki_autoclip that once the shapes are updated will clip them to the route keepin. This can affect performance though so won't make this a global setting for every board. Next time add the Route Keepin first.

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