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OpenROAD support with SkyWater 130 PDK

Install OpenROAD

First, clone clone OpenROAD-flow-scripts

cd flow
git clone --recursive https://github.com/The-OpenROAD-Project/OpenROAD-flow-scripts
cd OpenROAD-flow-scripts

Install OpenRoad locally as,

sudo ./tools/OpenROAD/etc/DependencyInstaller.sh
sudo ./build_openroad.sh --local

Finally, you need to install KLayout v0.27.1

Installing OpenRoad and KLayout may not be as straight and forwards, so you may need to install several missing packages (e.g. Qt for KLayout or libreadline-dev for Yosys, tcl-dev for OpenSTA, etc)

git clone --depth=1 --branch v0.27.1 https://github.com/KLayout/klayout.git
cd klayout
./build.sh -noruby

Edalize

x-heep uses a verion of edalize + fusesoc that supports sv2v to convert SystemVerilog to Verilog so that OpenRoad (yosys) can compile it.

You need to install sv2v as:

git clone https://github.com/zachjs/sv2v.git
git checkout 36cff4ab0ff3fc64dddb66ef6f3ff4ed80cbd581
cd sv2v
make

Follow the instructions at sv2v and add sv2v to the PATH variable.

Run command

make openroad-sky130