J2 open processor: an open source processor using the SuperH ISA

• icestorm

  7 948 0.0 Python

  Project IceStorm - Lattice iCE40 FPGAs Bitstream Documentation (Reverse Engineered)

  

>The rest of this page explains how to compile and install a "bitstream" file to implement this processor in a cheap (about $50) FPGA board, then how to build Linux for that board and boot it to a shell prompt.

>Numato: The cheapest usable FPGA development board ($50 US) the j2 build system currently targets is the Numato Mimas v2 (also available on amazon). It contains a Xlinux "Spartan 6" LX9 FPGA that can run a J2 at 50mhz, 64 megs of SDRAM, USB2 mini-B, and a micro-sd card slot.

Nice!

But, it would be an additional serious "would be nice" -- if this could run on Lattice FPGA's / IceStorm Open Source Toolchain:

https://www.latticesemi.com/Products

http://www.clifford.at/icestorm/

https://github.com/YosysHQ/icestorm

• jcore-j1-ghdl

  1 7 3.1 VHDL

  A simple design targeting iCE40 up5k with GHDL + Yosys.

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• j-core-ice40

  1 17 0.0 VHDL

  J-core SOC for ice40 FPGA

I think https://github.com/j-core/j-core-ice40 is the better repo to check out.

Suggest a related project