[PEDA] GND Net gone

[Elby Designs]

I am not using netnames. Once the Power Port is attached to a track it is 
supposed to assign its name to the net. So when I connect a Power Port 
called VCC to a track that is the name the net assumes. This has always 
happened when I attach a Power Port but this time GND is not showing up in 
the netlist when I go to the pcb.

To add further confusion. There is a net called 0 which if I let that import 
in to the pcb goes to all the places I want GND to be as well as the pads 
that have no connection to them.

I have tried renaming all GND Power Ports to DGND with the same results. I 
have also tried creating a new pcb in the same project and get the same 
results so I am guessing that the schematic has an error in it.

Best Regards

(Mr) Laurie Biddulph
Mobile: 0400 257 645

Elby Designs
ABN: 70 022 727 605
http://www.elby-designs.com

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----- Original Message ----- 
From: "Brad Velander" <BradV at natech.com>
To: "Protel EDA Discussion List" <PEDA at techservinc.com>
Sent: Sunday, July 30, 2006 12:12 PM
Subject: Re: [PEDA] GND Net gone


> Laurie,
> Can't answer your GND query.
>
> Why would you be using netnames to label pins "NC" or "0"? We do similar 
> things here but we use simple text (annotation in Altium speak) for such 
> non-electrical/non-connect labels. The problem with using a netname is 
> exactly the problem you are seeing, a netname will electrically connect 
> together similarly labelled pins.
>
> Sincerely,
> Brad Velander
> Senior PCB Designer
> Northern Airborne Technology
> #14 - 1925 Kirschner Road,
> Kelowna, BC, V1Y 4N7.
> tel (250) 763-2232 ext. 225
> fax (250) 762-3374
>
>
> -----Original Message-----
> From: Elby Designs [mailto:elby_designs at ozemail.com.au]
> Sent: Saturday, July 29, 2006 6:59 PM
> To: PEDA at techservinc.com
> Subject: [PEDA] GND Net gone
>
>
> I have been using Altium Designer DXP 2004 with SP4 on Windows 2000 but 
> recently had to change to a new computer now runnings Windows XP.
> I have a project that appeared to be okay on the older setup but I have a 
> problem with the current installation.
>
> When updating the PCB file, having just compiled the project in the 
> schematic section, the update refuses to recognise my GND nets. All the 
> other power nets are listed but not GND. Is there anyway of 
> seeing/editing/fixing the nets that the schematic section is working with 
> that might explain why they are not showing up in the pcb?
>
> Another minor problem is that any pads marked as NC or 0 (unsued pads on 
> an SOT23 or ic for example) always come across to be joined together. Is 
> there anyway of telling the system to simply ignore nets of this nature?
>
> Best Regards
>
> (Mr) Laurie Biddulph
>
>
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