The flag enables a second power supply (VAPWR), not necessarily 3.3V (gf180's core is already 3v3), so "uses_3v3" no longer accurately describes its purpose.
Rename it across project_info, precheck, project and shuttle, and update the validation message accordingly.
The legacy "uses_3v3" key is still accepted when reading info.yaml, so existing project configs keep working.
* feat(precheck): check if power pins have `USE` in definition
* fix: expect zero or more spaces, instead of one or more
* feat(precheck): check for missing `USE POWER`
* feat(precheck): check for missing `USE GROUND`
* feat(precheck): add simple README with link to LEF/DEF reference manual
Make the codebase more PDK-agnostic by moving tech-specific code to `tech.py` and tech specific files (e.g. def files, tile_sizes.yaml) to `tech/<pdkname>` subdirectory.
- no shapes outside project area
- VPWR/VGND present, VAPWR present iff uses_3v3
- no invalid layers
- cell names don't have '#' or '/'
- urpm to nwell spacing satisfies DRC
- analog pins have adjacent metal iff marked as used
* feat(precheck): add support for .gds.br compressed layouts
* fix(precheck): adapt the test suite to changed klayout_checks() signature
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Co-authored-by: htfab <mpw@htamas.net>
Uri Shaked