All Forums
 Help For Easy-PC Users
 PCB Layout
 GND pad connections

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

Screensize:
UserName:
Password:
Format Mode:
Format: BoldItalicizedUnderlineStrikethrough Align LeftCenteredAlign Right Horizontal Rule Insert HyperlinkInsert Email Insert CodeInsert QuoteInsert List
   
Message:

* HTML is OFF
* Forum Code is ON
Smilies
Smile [:)] Big Smile [:D] Cool [8D] Blush [:I]
Tongue [:P] Evil [):] Wink [;)] Clown [:o)]
Black Eye [B)] Eight Ball [8] Frown [:(] Shy [8)]
Shocked [:0] Angry [:(!] Dead [xx(] Sleepy [|)]
Kisses [:X] Approve [^] Disapprove [V] Question [?]

 
Check here to subscribe to this topic.
   

T O P I C    R E V I E W
Northy Posted - 27 Feb 2017 : 12:23:35
Hi,

I’m hoping you can help me. I’m doing my first layout in EasyPC (which is an update of an existing design) but all the GND pads have a sort of round symbol on them and no rats nest links associated with them. (I don't know how to attach a picture).

Could you tell me why please and how I can turn it off so I can connect them?

Thanks,

Graham
11   L A T E S T    R E P L I E S    (Newest First)
rbuck Posted - 01 Mar 2017 : 00:27:59
That symbol usually shows up when you have powerplanes in the design and have assigned a Net (in this case GND) to the powerplane. If you look at the Design Technology dialog -> Layers tab I suspect you will see that one of the Inner Layers has GND assigned as the Net.
Iain Wilkie Posted - 27 Feb 2017 : 21:34:04
Just been able to open the picture file.
The nets are showing for the +5 so ignore what I was saying about ticking the connection box. Make sure that show connection is set for your GND nets and these nets should show.
Now that circular symbol .... I've seen that before sometimes when I'm editing but not sure what it means, I remember reading about it in one of the updates I think but I've looked through 19/18/17 but see nothing about this so it may have been earlier (or I was dreaming it !) .... seem to remember it was something about nets close to or coincident with each other .... ask Numberone, they will have this answered in an instant !

Iain
Iain Wilkie Posted - 27 Feb 2017 : 19:05:26
The symbol could be a placement or component origin. You can turn these on/off in the Display/Highlights and Settings/
Also to show rats nest make sure Connections box is ticked in the same dialogue


Iain
Northy Posted - 27 Feb 2017 : 17:08:36
Hi, those colours were before you told me how to change them. GND is a different color now.

Graham
edrees Posted - 27 Feb 2017 : 15:48:49
Looks like you have now set the +5V net Green and GND is (default) red?
Northy Posted - 27 Feb 2017 : 14:36:27
Hi Nigle,

All nets are set to YES.

Regards,

Graham
nigle Posted - 27 Feb 2017 : 14:31:40
Go to the Nets tab in Design Technology and make sure the Show Connection entry for the net is set to Yes.
Northy Posted - 27 Feb 2017 : 14:24:21
Hows this:

http://tinypic.com?ref=2rrbewz target= _blank > < img src= http://i68.tinypic.com/2rrbewz.jpg border= 0 alt= Image and video hosting by TinyPic > < /a> " target="_blank">< a href= http://tinypic.com?ref=2rrbewz target= _blank > < img src= http://i68.tinypic.com/2rrbewz.jpg border= 0 alt= Image and video hosting by TinyPic > < /a>

[IMG]http://i68.tinypic.com/2rrbewz.jpg[/IMG]

http://tinypic.com/r/2rrbewz/9

http://i68.tinypic.com/2rrbewz.jpg
edrees Posted - 27 Feb 2017 : 14:17:16
EPC forum does not support images. Other Users have used alternative websites and included a hyper-link in their posting.
Northy Posted - 27 Feb 2017 : 14:06:19
Thanks for the reply.
They are all connected, but I still checked.
The colour tips were useful though, thanks.

How do I attach a picture to show the symbol?

Thanks,

Graham
edrees Posted - 27 Feb 2017 : 12:40:56
Firstly, you need to ensure that on the schematic that each leg that connects to the GND symbol has been named as net GND. You can do this by right clicking the leg and choose "Change Net" from the drop down menu. You could also left click the wire and if it is connected to GND then this information will appear in the bottom toolbar. Make sure that all nets have been named GND and then do a "Tools" =>"Forward Design Changes". All (Gnd) nets in the PCB will then be connected to Gnd.

You can also assign a colour (Green perhaps?) to all nets named GND to visually confirm that they are indeed connected to GND (in both Schematic & PCB Editors). Right click net, =>Properties, Net, - Use This Colour.

Hope this helps somewhat.