There is one SDF file in the project directory. I assume it is generated by the sta.tcl script. Whi...

Tobias Strauch

10/13/2022, 11:22 AM

There is one SDF file in the project directory. I assume it is generated by the sta.tcl script. Which process corner is it based on ? How do I generate SDF files for the other process corners ? Where can I find the parameters of the process corners ? Thanks in advance for an answer that really helps. Cheers, Tobias

Vijayan Krishnan

10/13/2022, 11:29 AM

Which OpenLane tag currently using?

Tobias Strauch

10/13/2022, 11:34 AM

Why is that important ?

Vijayan Krishnan

10/13/2022, 11:42 AM

With latest OpenLane commit i can see ff,ss,tt corner sdf files. So just to confirm which tag currently you're working?

Tobias Strauch

10/13/2022, 11:48 AM

Okay, looks like a coincidence. Will update my OL. Where can I find the parameters of the process corners ?

Vijayan Krishnan

10/13/2022, 11:50 AM

designs/spm/runs/openlane_test/results/routing/mca/

Tobias Strauch

10/13/2022, 11:55 AM

I'll check that directory, but with parameters I was trying to ask for environmal parameters like voltage, temperature, ... values. Besides that, the ss,tt,ff SDFs are generated by the Caravel framework by default - using the latest and greatest OL - as well, right ? Or do I have to set additional flags ?

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