Fomu (fomu.im) is an FPGA in your USB port. This repository gathers all the tools you will need to develop for Fomu, and provides them as prebuilt packages for GNU/Linux, Windows or macOS.
Download the latest release for your platform and extract it somewhere on your disk. Then set your PATH:
- Shell (GNU/Linux, Cygwin/MSYS2/MINGW, MacOS...):
export PATH=[path-to-bin]:$PATH - Powershell (Windows):
$ENV:PATH = "[path-to-bin];" + $ENV:PATH - cmd.exe (Windows):
PATH=[path-to-bin];%PATH%
To confirm installation, run a command such as nextpnr-ice40 or yosys.
Prebuilt packages contain almost everything you'll need for developing software and/or hardware on Fomu:
- open-tool-forge/fpga-toolchain:
- yosys -- synthesis
- ghdl-yosys-plugin -- VHDL frontend for Yosys
- nextpnr -- place-and-route
- dfu-util -- upload bitstream to the FPGA
- Find the list of all tools at open-tool-forge/fpga-toolchain: Introduction.
- Extras, specific for Fomu:
- riscv-gcc -- compile code for RISC-V CPUs, such as the Fomu softcore
- wishbone-tool -- access the debug bus on Fomu
- The Windows version includes
makeandteraterm.
NOTE: fpga-toolchain includes an internal lib/python3.8 interpreter to be used by nextpnr. However, users should install a Python interpreter on their system for using LiteX or other Python based hardware description/design tools.
It is strongly recommended that you install git for managing repositories and checking out code, though it is not strictly necessary.