ICE40 NVCM programming protocol.
Program your ICE40 without proprietary lattice tools! This class implements the MVCM memory programming protocol for ICE40 fpga. I only used it for the ICE40HX1K, but with minimal modifications it will probably work for any other ICE40x chips.
To use this class, you need to implement an interface to your USB-to-SPI device (Linker).