Toolchain documentation see http://www.clifford.at/icestorm/

For my personal convenience, this repo contains submodules for:

• https://github.com/cliffordwolf/icestorm.git
• https://github.com/cseed/arachne-pnr.git
• https://github.com/cliffordwolf/yosys.git

Other tools one might want to install:

• gtkwave
• iverilog

Alternatives to this repo:

• apio - https://github.com/FPGAwars/apio

Documentation and related links:

• yosys manual: http://www.clifford.at/yosys/files/yosys_manual.pdf

• basic howto video by eevidtron: https://www.youtube.com/watch?v=yUiNlmvVOq8

• Lattice iCEstick Evaluation Kit: http://www.latticesemi.com/icestick

• Lattice iCE40 LP/HX Family Datasheet: http://www.latticesemi.com/~/media/LatticeSemi/Documents/DataSheets/iCE/iCE40LPHXFamilyDataSheet.pdf

• generic PCF files for icestick: https://raw.githubusercontent.com/wd5gnr/icestick/master/icestickfull.pcf https://github.com/cyrozap/iCEstick-UART-Demo/blob/master/icestick.pcf

• pinout: http://www.pighixxx.com/test/portfolio-items/icestick/