Actions
Forum Thread Details
  • Replies 2 replies
  • Subscribers 165 subscribers
  • Views 159 views
  • Users 0 members are here
Related

GND polygon

autodeskguest

I have a bit of a n00b question.  How do you create that GND polygon or

whatever you call it like the big ol' blue shape in this:

http://farm4.static.flickr.com/3239/2709834302_78b27bfe5f_o.jpg

 

Thanks.

 

  • On Fri, 07 Nov 2008 16:14:03 -0800, Etharooni wrote:

     

    I have a bit of a n00b question.  How do you create that GND polygon or

    whatever you call it like the big ol' blue shape in this:

    http://farm4.static.flickr.com/3239/2709834302_78b27bfe5f_o.jpg

     

    Thanks.

     

    Draw your polygon around the area that you want to have a ground plane (I

    generally outline the whole board :-). Click on the "rename" icon, then

    click the edge of the polygon, and name it "GND" (or "VDD", or whatever).

    Voila! Note that if you use a ground plane to make all your ground

    connections, you need to watch for any airwires where the ground plane

    can't connect to somewhere; you may need to manually route a ground line

    to make any such interconnects.

     

    BTW, don't forget to change (the wrench icon) the Isolation value (then

    click your ground plane) as needed; click on the ratsnest icon to refresh

    the ground plane display.

     

    HTH

     

    DMerriman

     

  • Dave Merriman wrote:

    On Fri, 07 Nov 2008 16:14:03 -0800, Etharooni wrote:

     

    I have a bit of a n00b question.  How do you create that GND polygon or

    whatever you call it like the big ol' blue shape in this:

    http://farm4.static.flickr.com/3239/2709834302_78b27bfe5f_o.jpg

     

    Thanks.

     

    Draw your polygon around the area that you want to have a ground plane (I

    generally outline the whole board :-). Click on the "rename" icon, then

    click the edge of the polygon, and name it "GND" (or "VDD", or whatever).

    Voila! Note that if you use a ground plane to make all your ground

    connections, you need to watch for any airwires where the ground plane

    can't connect to somewhere; you may need to manually route a ground line

    to make any such interconnects.

     

    BTW, don't forget to change (the wrench icon) the Isolation value (then

    click your ground plane) as needed; click on the ratsnest icon to refresh

    the ground plane display.

     

    HTH

     

    DMerriman

     

    Thanks!