The Milkymist SoC is at the core of our devices. It is a 100% open source system-on-chip (SoC) design written in Verilog HDL. Featuring the LatticeMico32 processor core, it is capable of executing complex, fully-fledged software (including nommu Linux) and comes with an extensive set of custom-built peripherals and graphics accelerators. Read this report for the details about the architecture.
Technical overview paper (PDF) (Recommended reading)
Master's thesis report (PDF) (Recommended reading)
BIOS reference manual (PDF)
CSR bus specifications (PDF)
Simple UART (PDF)
System controller (PDF)
VGA framebuffer (PDF)
AC'97 controller (PDF)
DMX512 cores (PDF)
RC5 decoder (PDF)
BT656 capture core (PDF)
Memory card controller (PDF)
Soft USB core (PDF)
Browse all official documentation (including chip datasheets, small IP cores documentation, and work in progress)
The SoC source distribution includes software libraries, the BIOS and the demonstration firmware, as well as test benches, LaTeX source for the documentation, build scripts, etc. Most of it is covered by the GNU GPL license version 3, see the README file for details.
The repository is hosted by GitHub and is available here.
LM32 toolchain - see RTEMS. Use the RTEMS 4.11 toolchain.
GPL Cver 2.12a (TAR.GZ) (Sources)
Verilator 3.702 (TAR.GZ) (Sources)
Icarus Verilog 0.9.1 (TAR.GZ) (Sources)