OrCAD PCB Assembly Pads

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   Hi,  
I noticed that when generating footprints for OrCAD PCB (Allegro) there are not pads on the assembly layers.   Is there a reason for this?

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lalexman Members Profile Send Private Message Find Members Posts Add to Buddy List Expert User Joined: 30 Jul 2012 Status: Offline Points: 679	Post Options Post Reply Quote lalexman Report Post Thanks(1) Quote Reply Topic: OrCAD PCB Assembly Pads Posted: 19 Nov 2013 at 7:09am
	Hi, I noticed that when generating footprints for OrCAD PCB (Allegro) there are not pads on the assembly layers. Is there a reason for this?



chrisa_pcb Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 29 Jul 2012 Location: San Diego Status: Offline Points: 772	Post Options Post Reply Quote chrisa_pcb Report Post Thanks(0) Quote Reply Posted: 19 Nov 2013 at 2:36pm
	In FPX, you select how you want the Pads on Assembly to be displayed. Example: First select Through Hole, Header/Vertical (OK), then Reference Now Select the Settings tab to the right of the Dimensions Tab that is currently being displayed There should be a selection Pads On Assembly. The default is None (which is what you're seeing. You can set this to either be an Outline which is a circle that encompasses the Pad, or Filled which provides a filled Pad. After selection (select say Outline), Select OK. Now Change the Layer for the part to Assembly Top and each pad should have an Outline around it. Then select say Filled and Select OK.. it should then be a Filled Outline (i.e. a pad).

lalexman Members Profile Send Private Message Find Members Posts Add to Buddy List Expert User Joined: 30 Jul 2012 Status: Offline Points: 679	Post Options Post Reply Quote lalexman Report Post Thanks(0) Quote Reply Posted: 19 Nov 2013 at 2:47pm
	What layers are they placed in OrCAD PCB ?

chrisa_pcb Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 29 Jul 2012 Location: San Diego Status: Offline Points: 772	Post Options Post Reply Quote chrisa_pcb Report Post Thanks(0) Quote Reply Posted: 19 Nov 2013 at 4:31pm
	Should be PACKAGE GEOMETRY / ASSEMBLY_TOP and PACKAGE GEOMETRY / ASSEMBLY_BOTTOM in a class / subclass format.

lalexman Members Profile Send Private Message Find Members Posts Add to Buddy List Expert User Joined: 30 Jul 2012 Status: Offline Points: 679	Post Options Post Reply Quote lalexman Report Post Thanks(0) Quote Reply Posted: 19 Nov 2013 at 4:58pm
	Hi , I have the assembly top and bottom set to filled and verified they have a pad in the FPX viewer. Attached are the FPX Orcad PCB files. It looks like those layers are not on the padstack in Orcad PCB so they would have to be in the .SCR file ?. I do not see anything on the assembly top or bottom layer for the pads in the attached scr file. Only the outline of the part and the pin 1 location. uploads/545/fpx.zip

chrisa_pcb Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 29 Jul 2012 Location: San Diego Status: Offline Points: 772	Post Options Post Reply Quote chrisa_pcb Report Post Thanks(0) Quote Reply Posted: 19 Nov 2013 at 5:30pm
	Ok. That narrows the issue you're having a little better. So, in particular, filled assembly pads aren't coming in. Outlines are showing up properly, yes?

lalexman Members Profile Send Private Message Find Members Posts Add to Buddy List Expert User Joined: 30 Jul 2012 Status: Offline Points: 679	Post Options Post Reply Quote lalexman Report Post Thanks(0) Quote Reply Posted: 19 Nov 2013 at 5:41pm
	Nothing comes in on the pads for assembly top or bottom in filled mode. I just tried outline mode and pads do show up on assembly top and bottom.

chrisa_pcb Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 29 Jul 2012 Location: San Diego Status: Offline Points: 772	Post Options Post Reply Quote chrisa_pcb Report Post Thanks(0) Quote Reply Posted: 19 Nov 2013 at 6:23pm
	Found the issue and Fixed. It'll be in the next update .17.

lalexman Members Profile Send Private Message Find Members Posts Add to Buddy List Expert User Joined: 30 Jul 2012 Status: Offline Points: 679	Post Options Post Reply Quote lalexman Report Post Thanks(0) Quote Reply Posted: 20 Nov 2013 at 7:19am
	Great! Thanks!