Hey all, does anyone know what the warning “Drilled holes co-located” means? I have a few of these warnings that reference vias that result from differential pairs. I had to use them to reverse the polarity of the USB data lines because the orientation on the USB/UART chip I was using was the opposite of both the port and the inputs on the MCU. The drills are in fact co-located, but I don’t really understand why that would be a warning, since it’s literally a feature of the differential pair placement.
I think that Pcb manufacturers don’t like drill holes too close together or in the same place as a slight offset may break the drill bit.
“Drilled holes co-located” means there are multiple holes excactly at the same position.
Drill holes too close together get an error saying exactly that.
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Ah! Thanks, this made me realize that there were in fact extra drill holes present that I couldn’t see because they were in exactly the same place. No idea how they got there, might be a bug with the routing of differential pairs through vias.
…or accidentally quick-fingering multiple 'V’s.
Fingering the V will get you into trouble in lots of places … 
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But on Unix / Linux (like) systems you’ve got more:
unzip
strip
touch
finger
grep
mount
fsck
more
yes
fsck
fsck
fsck
unmount
sleep
But it still does not have a manual for woman.
paul@cezanne:~$ man woman
No manual entry for woman
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