I’m modeling a timer circuit, starting with pspice “vsource” and “0” for the ground. I’m able to
get through ERC and the ngspice simulation gives expected square wave result.
Now I want to get a little bit more “fancy” and add connectors so that I can see how things will
look in PCB editor. I guess I don’t quite understand how to use “labels” and get everything to
work. With the current iteration, I get through ERC, but ngspice gives “warning, can’t find model gnd”.
So it looks like I need to somehow associate the pspice “0” with GND, but how to do that is unclear.
For connector P2, I went to the spice model tab and was able to input 15V under the source tab.
But for connector P1, I can’t see how to get GND correct.