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<p>I got a SiFive HiFive1 RISC-V devboard for Christmas - the hint to my wife worked. The board I got was an "early access" model of https://www.sifive.com/products/hifive1/</p>
<p>If you want to a little about the RISC-V architecture have a look at https://en.wikipedia.org/wiki/RISC-V - but the summary from Wikipedia is "The RISC-V authors aim to provide several CPU designs freely available under a BSD license". It is likely be the next big thing for semi-custom silicon designs - much like ARM cores but without any of the licensing issues.</p>
<p>I spent last night building a new Ubuntu VM, then cloning and building the GitHub repos for the tool chain. A few hours later it now says "Hello World" - not much for a micro-controller with 16 MB of (off-chip) flash, but it is a start.</p>
<p>It all worked as advertised. As it is open source all the way down to the micro-controller's HDL there is now an option for anybody who detests the lack of AVR openness (if such people exist). It is early days yet so is still a little pricey per chip.</p>
<p>I'm thinking of adding an e-ink or TFT display, and making it a reader for the Gutenberg Bible as a sort of an art/political statement....</p>
<p>Mike</p>
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