Green coloured pads under an attempted placement of a track ??
Its a completed symbol and footprint, and in testing it I get a green pad where I try and place the track. Also ‘snap to grid’ is set to off. The run track does not locate itself there. Tried to run track to other symbols but its the same.
I know that the pads are not on 2.54mm. In lining up the top pad with a 2.54mm grid, none of the lower pads are on the grid.
But this is a pcb module that I am looking at mounting on header pins, as the jumper wires keep falling off.
Provided that you have Interactive Router set to ‘Highlight collisions’ mode. If you set it to ‘Shove’ KiCad will not allow to go with track over such pad and you will not have it being green.
You draw a schematic. The schematic creates the netlist which you get into the PCB Editor with: Schematic Editor / Tools / Update PCB from Schematic [F8].
It is also possible to create a netlist inside the PCB Editor (For example by right clicking on a pad, editing it’s properties and then select an existing net name from the drop down list or enter a new net name). But this process is a bit tedious, and you probably loose it all if you (accidentally) update from the schematic.
The PCB Editor can also manually import a netlist (This is how it worked 10 years ago, but it’s still supported). You can write such a netlist in a text editor (or some python script, whatever) and then import that in the PCB Editor.
At your picture net names are too small to read them. If two pads got the same net name than you should not see green pad when connecting them with track.
I wonder now if you are not able to manually run tracks on the PCB, if the schematic has not been drawn or updated ??. When I connect a few pads to tracks and then to other components on the schematic. Then do normal ‘update pcb from schematic’ it shows the rats nest all connected correctly. Then manually run the tracks all OK.
This (to not allow you to make wrong connections) is the main task of any PCB design program.
I suppose update PCB if there are connections that are not at schematic can be not so easy for the program and may be wrong connections can left and be not noticed by you. But you have DRC to check it.
If you wonder than just experiment. I prefer to disconnect all wrong/old connections at PCB before updating PCB from schematic and not ask myself such questions.
