An easier way to quickly build, install, and update latest builds of the FOSS FPGA flows
Open Source FPGA toolkit built around IceStorm and Yosys by Claire Wolf. Version 2 now includes ECP5 support via Prjtrellis and Gowin via Apicula.
- For Ice40 use:
./icetools.sh
- For ECP5 use:
./ecp5tools.sh
- For Gowin use:
./gowintools.sh
- For all architectures use:
./fpgatools.sh
| Component | Function | License |
|---|---|---|
| Yosys | Synthesis | ISC |
| Icarus Verilog | Simulation | GPL-2.0 |
| Verilator | Simulation | LGPL-3.0 |
| Arachne-pnr | Place & Route | MIT |
| IceStorm | Bitstream | ISC |
| NextPNR | Place & Route | ISC |
| Prjtrellis | Bitstream | MIT |
| Apicula | Bitstream | MIT |
| OpenFPGALoader | Binary Loading | AGPL-3.0 |
- Lattice iCE40 (all variants)
- Lattice ECP5 (all vairants)
- Gowin GW1N-1 / GW1NR-9
Gowin support is experimental via Project Apicula This WILL work on WSL but you will need to call the Iceprog as an exe due to no USB access (yet)
To unload the default and vendor drivers in case iceprog refuses to connect:
sudo kextunload -v -b com.apple.driver.AppleUSBFTDI
sudo kextunload -v -b com.FTDI.driver.FTDIUSBSerialDriver
Reload with
sudo kextload -v -b com.apple.driver.AppleUSBFTDI
sudo kextload -v -b com.FTDI.driver.FTDIUSBSerialDriver