Tool chain for Lattice iCE40 FPGAs Hardware to buy There is now a complete Open Source tool chain for some FPGAs from Lattice Semiconductor. For a convincing video that these devices and the Open Source development tools are useful, see: Introduction to the Open Source FPGA toolchain short or long@32c3 by Clifford Wolf Forth on icestick by James Bowman The pipeline employs the following tools: yos