I’m trying to create a template of a barebones Arduino-type circuit for an ATMEGA328 so I can start new PCB projects based on an Arduino board without having to recreate the required components all the time. I think I have a pretty streamlined design, and I’ve worked through all the errors from the DRC except one warning:
ErrType(4): Conflict problem between pins. Severity: warning.
- Pin 21 (Bidirectional) of component U3 is connected to
- pin 3 (Power output) of component U1 (net 7)
I know I can simply set pin 21 to “Passive,” but I don’t know if that’s the “proper” answer. Would someone help me understand how to properly address the KiCad error? Here’s the full schematic: