Processors: Open source hardware 2009 – The definitive guide to open source hardware

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Part of The definitive guide to open source hardware projects in 2009

Processors – You can actually make and fabricate your own chips, I have met anyone who does this but there are a couple huge projects that openly share CPUs and on-chip interconnections. Living room chip fabs are a few years away (well, Jeri has one) but here’s a glimpse.

OpenCores is a foundation that attempts to form a community of designers to support open-source cores (logic designs) for CPUs, peripherals and other devices. OpenCores maintains an open-source on-chip interconnection bus specification called Wishbone. ORSoC has designed a development kit for the OpenRISC processor. This kit enables easy access to the OpenRISC platform and gives the designer a fast start.
Price: Various
Visit the project page

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OpenSPARC is an open source hardware project started in December 2005. The initial contribution to the project was Sun Microsystems’ Register transfer level (RTL) Verilog code for a full 64-bit, 32-thread microprocessor, the UltraSPARC T1 processor.
Price: Various
Visit the project page