STA in Openlane doesn't appear to incorporate any macro timing information. How are we guaranteeing a design with macros makes timing? Also wondering if OpenROAD supports loading multiple SPEF files.
02/15/2022, 5:14 AM
You need to have a .lib for a macro. For multiple spefs - are you talking about hierarchical stitching or multiple corners?
02/15/2022, 7:54 AM
So the .lib file IS considered during STA in Openlane automatically ? Thought that this is still worked on.
What about the delays at the IOs of the macros ? For example, I don’t see data-in and data-out arcs of SRAMs in the 21-user_proj_example.sdf file.