![]() The processor itself, called NEORV32, is designed as a system-on-chip complete with GPIO capabilities and of course the full RISC-V processor implementation. Since the processor is built in VHDL, a language which allows the design and simulation of integrated circuits, it is possible to download the code for the processor and then program it into virtually any FPGA. There is one completely open-source and free architecture though, known as RISC-V, and its design and philosophy allow anyone to build and experiment with it, like this build which implements a RISC-V processor in VHDL. While it’s a great step on the road to software and hardware freedom, it’s not completely free as it requires a license to build. While ARM continues to make inroads into the personal computing market against traditional chip makers like Intel and AMD, it’s not a perfect architecture and does have some disadvantages.
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