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Guild: wafer.space Community
Channel: ℹ️ - Information / ⁉️-questions / Openroad GUI timing corner selection
After: 2025-11-30 11:59 p.m.
Before: 2026-01-01 12:00 a.m.
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[2025-12-02 9:43 a.m.] greg.hashtag.9468
I've tried googling this, but not having much luck yet. When opening the openroad-gui via librelane 'nom_tt_25C_5v00' timing corners are loaded and reported. I'm seeing a large gap between the slowest:'max_ss_125C_4v50' and fastest: 'min_ff_n40C_5v50' corners. Curious how I would load the other timing corners to visually see the paths, and maybe optimise macro placements. 

I've tried `read_spef --corner <file>`, but the corner names don't seem to be correct.


[2025-12-02 10:10 a.m.] mole99
Quick and dirty: add e.g. `DEFAULT_CORNER: nom_ss_125C_4v50` to your config and LibeLane will load this corner instead.

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[2025-12-02 10:10 a.m.] mole99
However, LibreLane should really load all timing corners that are available.


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