From my experiance with Eagle this is exactly the problem. Often this is
caused by library parts that have different power/ground names (i.e Vss on
the MAX232 and GND on the PIC) it can also be caused by using a symbol that
has a different power / groung name than the supply names you chose. (it's
one of my pet peeves with Eagle)

The DRC (design rule check) should ppoint this out if you run it correctly,
but truthfuly I don't have much experiance with that part of the software.

Do a search in the help file on the INVOKE command. Many parts that don't
explicitly show thier power / ground connections will show them if you use
the INVOKE command. Then you can just connect them in the schematic and the
router will do the work.

Good Luck
-Denny


----- Original Message -----
From: "Spehro Pefhany" <speff@INTERLOG.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Wednesday, September 10, 2003 12:48 PM
Subject: Re: [EE:] Yet another beginner type question


> At 04:29 PM 9/10/2003 +0100, you wrote:
>
>
> >Clearly, this problem stems from me not knowing how to use eagle very
well.
> >What am I actually *supposed* to do to my schematic to link all these
things
> >together, without having to directly link them in the schematic (because
> >that would look messy and be harder to read)??
>
> Don't know Eagle specifically, but this type of problem is typically
> caused by having two different names for what is supposed to be the same
net,
> such as GND and Vss. Especially if each resulting net has more than one
node,
> there's no way for the program to detect a problem and emit a warning.
>
> Best regards,
>
> Spehro Pefhany --"it's the network..."            "The Journey is the
reward"
> speff@interlog.com             Info for manufacturers:
http://www.trexon.com
> Embedded software/hardware/analog  Info for designers:
http://www.speff.com
>
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