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The previous version of the boundary check was a quick heuristic where we compared the bounding box of the design to that of the prBoundary layer. Over time we came across some designs where this is insufficient. The new check compares the bounding box to the correct project size based on the .def template and verifies that there is a rectangle of this exact size in the prBoundary layer at the top level. The patch also abstracts parsing the .def template into a separate function since we now use it in two different checks.
Tiny Tapeout tools
Tools used mostly by the Tiny Tapeout GitHub Actions
Setup
pip install -r requirements.txt
pre-commit install
On macOS, some third-party libraries are required:
brew install libpng qhull cairo
Documentation
- checks that basic fields are present in the info.yaml
- create a PDF data sheet for this one design
- create SVG and PNG renders of the project's GDS
Reports
- routing & utilisation
- yosys warnings
- standard cell usage and summary
Configuration
- creates a little TCL shim that tells LibreLane where the source is and the name of the top module
- makes sure the top module is not called 'top'
- if you have LibreLane installed locally, then you can harden the design with --harden