I've come a little late to this discussion, and probably missed out on a few of the early ideas.
In short, you have a PicoRV32 implemented as a soft core on the ICE40HX4K, and this implements a "soft Arduino" - programmable from the Arduino IDE, thus opening out this technology to a much wider user base.
Would anyone like to hazard a guess at the performance increase of this soft core over the original ATmega328 16MHz Arduino R3?
Either by standard Dhrystone and Whetstone benchmarks, or a figure for DMIPS.
Whilst the FPGA can speed up the hardware for driving LED panels etc, I'd just like a idea of the magnitude increase in cpu power.
Have we got the equivalent of a 50MHz ARM M0 or thereabouts?
Intelligent guesses most welcome at this stage