Not really AVR specific, but the schematic does contain an AVR =)
When running ERC in eagle, I'm getting this:
ERROR: OUTPUT and SUPPLY Pins mixed on net +5V
I assume it's because I have the output pin of a 7805 declared as OUT (not my library) and I've connected it to +5V symbols I'm using.
Since the +5V has to come from somewhere, isn't there always some regulator, supply, etc connected to it?
I know it can be ignored, but for my own curiosity, is there a way to make eagle happy?
Thomas Strand 
I think you're right, that output should not be an OUT. Try changing it to something else, like Pas etc.
Which is done in the library 'symbol' editor; use the change/direction menu and select e.g. Pwr or I/O (I/O will stick to anything without error, I think).
Don't confuse the *name* of the pin with the functionality.
Neil
I tried changing it to pwr and supply, but both of those threw up other errors. I could change it to I/O, but that doesn't seem right. It'd probably stop the error, but the pin shouldn't be an I/O pin. I figured there's got to be some way to make it happy and have the proper pin directions.
Did you try asking Eagle support? The one guy that does the support there is pretty good. He usually gets back with an answer within 24 hrs.
As for these errors, I get the same thing. But I understand what they are and ignore them.
Regards,
Paul
Thanks Paul. Got a response in a few hours and fixed the issue. Just had to edit the library for the 7805 I was using and change the output pin to a PWR pin and name it "+5V" and I can run ERC with no errors.
