Build for Tang Primer 20K with yosys + nextpnr-himbaechel + apicula + openFPGALoader

apicula_tangprimer20k.md

Install dependencies

sudo apt-get install build-essential clang bison flex cmake libreadline-dev gawk tcl-dev \
                     libffi-dev git graphviz xdot pkg-config python3 libboost-all-dev zlib1g-dev \
                     python3-dev python3-pip clang-format libeigen3-dev

Install toolchains

• apycula

pip3 install apycula
source ~/.profile

• yosys

git clone https://github.com/YosysHQ/yosys.git
pushd ./yosys
make
sudo make install
popd

• nextpnr-himbaechel

git clone https://github.com/YosysHQ/nextpnr.git
pushd ./nextpnr
cmake . -DARCH="himbaechel" -DHIMBAECHEL_GOWIN_DEVICES="all"
make -j$(nproc)
sudo make install
popd

Build blinky example

git clone https://github.com/YosysHQ/apicula.git
cd ./apicula/examples
yosys -D LEDS_NR=6 -D OSC_TYPE_OSC -p "read_verilog blinky.v; synth_gowin -json blinky.json"
nextpnr-himbaechel --json blinky.json --write pnrblinky.json --device GW2A-LV18PG256C8/I7 --vopt cst=primer20k.cst --vopt family=GW2A-18
gowin_pack -d GW2A-18 -o pack.fs pnrblinky.json
openFPGALoader -b tangprimer20k pack.fs