[hn3er1q]

Thank you so much for asking, I have oh so many requests...

Personally, I'm mostly interested in the ARM vs RISCV compare and contrast.

- I'd be very interested in comparing static memory and ram memory requirements for programs that are as similar as you can make them at the c-level using whatever toolchain Nordic wants you to use.

- Since you're looking to do deep dives I think looking into differences in the interrupt architecture and any implications on stack memory requirements and/or latency would be interesting, especially as VPR is a "peripheral processor"

- It would be interesting to get cycle counts for similar programs between ARM and RISCV. This might not be very comparable though as it seems the ARM architectures are more complex thus we expect a lower CPI from them. Anyway I think CPI numbers would be interesting.

I could go on but I don't want to be greedy. :)

[brucehoult]

The Raspberry Pi Pico 2 of course also uses the Cortex M33, along with a self-developed (in his spare time!) RISC-V core that has very similar performance, other than not having an FPU.

It's pretty easy to compare the same C code on both CPUs on a Pico 2, where you have equal RAM, equal peripherals etc.