Hi, dear all,
I am trying to develop a library using FreePDK15 open cell library. But currently I can not create any vias in the layout editor and error pops up as follows when I try to add any vias.
The error is the same for all other constraint groups.
I found a file called "FreePDK.tf" which contains a section like this.
Are the sections standardViaDefs and customViaDefs useful? Do I have to define my own vias here? If yes, I am confused by the required inputs like "LibName" "CellName" and "resistancePerCut" so I hope someone can guide me through what should I fill for them. If not, can anyone help me find a way to define vias in the constraint group? Thanks a lot in advance!
Sincerely
Greeny