Another question about the OpenRAM config options: is there an option to control whether power grids are generated inside the SRAM? I saw these two options in the

options.py

route_supplies = "tree"
supply_pin_type = "ring"

My guess is the tool by default will create the power grids with a power ring surrounding it, is it correct? also what is the possible values for these options?

I don't recall the default, but OpenLane only works with a ring.

Thanks! When I check the gds I saw a ring in it

@User Yes, metal1 is used for that to connect the array locally.

I see, thanks for the clarification!