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Unable to change pad signal name connected to polygon

autodeskguest

I am designing surface mount proto-boards. (I will upload my library once

done.) I am working ONLY in Board for this project. In my package library,

I created parts with SMD pads and through-hole pads.

 

I used "Signal" to name and connect some pads GND. I also have a polygon

on the solder side named GND.

 

I am unable to rename any of the pads that connect to GND. If I unroute

the polygon, no air-wires appear to the pads. If I use "Name" and click on

a pad, I select the nearest routed signal, not the pad. If I add a signal

from one of the pads to another net (such as VCC) I am asked to select a

name for the "combined" net. Even if I delete the polygon, I get the same

results.

 

In the attached file, please note the 4 holes on the top and bottom edge

of the board as examples.

 

Jeff Rockel

WI, USA

--

Browser access to CadSoft Support Forums at http://www.eaglecentral.ca

 

 

Parents

  • On 07/30/09 22:26, Jeff rockel wrote:

    Klaus,

     

    SHOW GND; Then try and rename a drilled pad that is highlighted.

     

    If you are able to rename the drilled pad (which is part of a package)

    then my experience was a fluke.

     

    The problem you're having is that the GND polygon prevents airwires

    from being generated between the GND pads. That's because these pads

    are already connected by the (calculated) polygon.

     

    Normally you would rename the net that the respective pin is connected

    to in the schematic, and the associated pad would be automatically

    removed from the GND signal.

     

    What you can do if you have only a board is to temporarily rename

    the GND polygon to, say, GND1, and then do RATSNEST. Now you get

    actual airwires attached to the GND pads. Delete whatever airwires

    are necessary to isolate the pad in question from the rest of GND,

    and then rename the polygon back to GND.

     

    Klaus Schmidinger

    --

    _______________________________________________________________

     

    Klaus Schmidinger                       Phone: +49-8635-6989-10

    CadSoft Computer GmbH                   Fax:   +49-8635-6989-40

    Hofmark 2                               Email:   kls@cadsoft.de

    D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de

    _______________________________________________________________

     

Reply

  • On 07/30/09 22:26, Jeff rockel wrote:

    Klaus,

     

    SHOW GND; Then try and rename a drilled pad that is highlighted.

     

    If you are able to rename the drilled pad (which is part of a package)

    then my experience was a fluke.

     

    The problem you're having is that the GND polygon prevents airwires

    from being generated between the GND pads. That's because these pads

    are already connected by the (calculated) polygon.

     

    Normally you would rename the net that the respective pin is connected

    to in the schematic, and the associated pad would be automatically

    removed from the GND signal.

     

    What you can do if you have only a board is to temporarily rename

    the GND polygon to, say, GND1, and then do RATSNEST. Now you get

    actual airwires attached to the GND pads. Delete whatever airwires

    are necessary to isolate the pad in question from the rest of GND,

    and then rename the polygon back to GND.

     

    Klaus Schmidinger

    --

    _______________________________________________________________

     

    Klaus Schmidinger                       Phone: +49-8635-6989-10

    CadSoft Computer GmbH                   Fax:   +49-8635-6989-40

    Hofmark 2                               Email:   kls@cadsoft.de

    D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de

    _______________________________________________________________

     

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