tree 558d8a4eb735b65359c2041c6ccdaf9addd34ed4
parent 17bc8e605cd035a6745722530fe3ac369f310022
parent 43e604c1b77d71cc71f101f78e198f4da157f3f7
author Tim 'mithro' Ansell <me@mith.ro> 1603984378 -0700
committer Tim 'mithro' Ansell <tansell@google.com> 1603984378 -0700

lef: Fixing VNB/VPB properties in .magic.lef files.

Both the `PIN VNB` and `PIN VPB` are now marked with `DIRECTION INOUT`.
The `PIN VNB` is marked with `USE GROUND` and the `PIN VPB` is marked
with `USE POWER`.

This should fix the `.magic.lef` file usage with OpenROAD (and hopefully other
tools too).

Fixes https://github.com/google/skywater-pdk/issues/172

Signed-off-by: Tim 'mithro' Ansell <tansell@google.com>