OSS CAD Suite

This is a compilation of useful tools for working with the TinyTapeout project. If you have docker installed, this is a quick way of getting all the tools you need without having to install them on your PC.

Docker Image

docker pull davidsiaw/ocs

Please see below if you wish to build this yourself on your own PC

Example Usage

Easy way

You can simply add for example

alias yosys="docker run --rm -ti --platform linux/arm64 -v $(PWD):/src --workdir /src -e PDK_ROOT=/opt/pdk davidsiaw/ocs yosys"

to your profile to have the yosys command

Long way

If you don't want to add aliases or an executable bash script in your path you can just do it the long way:

docker run --rm -ti --platform linux/arm64 -v $(PWD):/src --workdir /src -e PDK_ROOT=/opt/pdk davidsiaw/ocs yosys -p "read_verilog mystuff.v; write_json"

What it contains

• The Skywater 130nm PDK
• The Caravel user project for MPW-7
• The Yosys OSS CAD Suite

File explanations

• build.sh - the script you run to build the image (only runs on M1 macs. it builds a multi-plaform image that contains both arm and x64 manifests)
• Dockerfile - the description of the docker image
• install.sh - used by the Dockerfile to install everything