If you’re looking to tapeout an OpenLane 2/LibreLane-based design with
ChipFoundry, an appropriate version of OpenLane 2/LibreLane will be
automatically pulled by your target template:
OpenLane
OpenLane is an ASIC infrastructure library based on several components including
OpenROAD, Yosys, Magic, Netgen, CVC, KLayout and a number of custom scripts for
design exploration and optimization.
A reference flow, “Classic”, performs all ASIC implementation steps from RTL all
the way down to GDSII.
You can find the documentation
here to get
started.
Try it out
You can try OpenLane right in your browser, free-of-charge, using Google
Colaboratory by following
this link.
Installation
You’ll need the following:
- Python 3.8 or higher with PIP, Venv and Tkinter
Nix (Recommended)
Works for macOS and Linux (x86-64 and aarch64). Recommended, as it is more
integrated with your filesystem and overall has less upload and download deltas.
See
Nix-based installation
in the docs for more info.
Docker
Works for Windows, macOS and Linux (x86-64 and aarch64).
See
Docker-based installation
in the docs for more info.
Do note you’ll need to add --dockerized right after openlane in most CLI
invocations.
Python-only Installation (Advanced, Not Recommended)
You’ll need to bring your own compiled utilities, but otherwise, simply
install OpenLane as follows:
python3 -m pip install --upgrade openlane
Python-only installations are presently unsupported and entirely at your own
risk.
Usage
In the root folder of the repository, you may invoke:
python3 -m openlane --pdk-root <path/to/pdk> </path/to/config.json>
To start with, you can try:
python3 -m openlane --pdk-root $HOME/.volare ./designs/spm/config.json
Publication
If you use OpenLane in your research, please cite the following paper.
- M. Shalan and T. Edwards, “Building OpenLANE: A 130nm OpenROAD-based
Tapeout-Proven Flow: Invited Paper,” 2020 IEEE/ACM International Conference
On Computer Aided Design (ICCAD), San Diego, CA, USA, 2020, pp. 1-6.
Paper
@INPROCEEDINGS{9256623,
author={Shalan, Mohamed and Edwards, Tim},
booktitle={2020 IEEE/ACM International Conference On Computer Aided Design (ICCAD)},
title={Building OpenLANE: A 130nm OpenROAD-based Tapeout- Proven Flow : Invited Paper},
year={2020},
volume={},
number={},
pages={1-6},
doi={}}
The Apache License, version 2.0.
Docker images distributed by Efabless Corporation under the same license.
Binaries bundled with OpenLane either via Cachix or Docker are distributed by
Efabless Corporation and may fall under stricter open source licenses.
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