open-source-silicon.dev

Humm.  I have many `Illegal overlap` in the log file but at least some of them are outside macros.  Is it a different issue ?

The `Illegal overlap` feedback will appear when a non-obstruction shape overlaps with an obstruction, possible causing a short or DRC violations. Where exactly are the illegal overlaps you're seeing?

The first box I investigated is in the middle of nowhere.  Weird.

I think the coordinates emitted in the feedback file by magic are misleading; they needed to be divided by 2 before you `box` them in magic.

Yes that makes sense.  The first overlap is between vcc of the top-level and the vcc of the macro (both met5).  So that's ok.  I now have to inspect all the other cases...

^ so you _intentionally_ adjusted the PDN pitches of your macro to purposely overlap?

Yes.  That's the easiest way to keep the number of wire layers.