Please take a look at this picture:
- Pin 9 of U6 is power output
- Pin 3 of U1 is power input
- Pin 4 of U2 is power input
- Pins of L1 are passive
Why the warning of “pin not driven” is fired on U2 only?
I’m aware I can just add a PWR_FLAG to the +3V3 rail, but it should not required here. I read the tutorial and because I set the output pin of U9 as “power output” the ERC should be fine with this. L1 is passive so the property of the signal should pass-through.