FPGA firmware for the Sentient Light LED controller

The firmware in this repository compiles to a firmware for the Lattice iCE40-HX1K FPGA. It is intended to be used on an axelsys iCEstick and an FPGA-RJ45 adapter allowing to control sixteen strips of WS2812 or SK6812 LEDs in parallel. Data transmission from the PC occurs via the ICEstick's USB serial port via the onboard FTDI FT2232H.

Toolchain

Beginning March 2019

• Yosys 0.8+127 (git sha1 a2c51d50, gcc 7.3.0-3 -fPIC -O3)
• nextpnr-ice40 (git sha1 97993e7)

Before March 2019

• Yosys 0.7+449 (git sha1 0659d9ea, gcc 7.3.0-3 -fPIC -Os)
• arachne-pnr 0.1+261+1 (git sha1 c21df00, g++ 7.3.0-3 -O3 -DNDEBUG)