open-source-silicon.dev

Is there a way to set a non-rectangular die area for floorplanning and placement? For example, if you wanted to fit two L-shaped macros together?

There isn't a way to define a non-rectangular die area explicitly though, but you can emulate that behaviour with rectangles and obstructions.

You fit two L-shaped macros together, but their bounding boxes (rectangles) will have to overlap, which is fine. What are you trying to do specifically?

Okay, so as long as the overlapping rectangular cells have keep-out areas which prevent them from placing/routing in the overlapping areas, it should work?

Thank you, that information is very helpful. I'm trying to fit some 'T' and '+'-shaped routing macros between larger rectangular blocks arranged in a grid, so it sounds like that approach should work.