Comment by drzaiusx11
3 hours ago
Sounds cool! Similar to the SID project, assuming you're also aiming for pin compatibility.
I'm curious why you choose the pico platform over something like TinyFPGA which could be near 100% gate level compatible over a pico with software emulation. I bet the < $3 ICE40 has enough gates?
I haven't really looked at the pico2 yet, maybe it's one of those new hybrid arm+fpga designs and you'd have the best of both worlds?
EDIT: sadly no CPLD/FPGA on the pico2 front, at least according to [1]. Pico2 does add a new RISC-5 core (as a coprocessor? I only skimmed...) So I guess you'd have to do a bunch of timer interrupts to keep things in your emulator clock aligned if you're going pin compatible.
1. https://pip-assets.raspberrypi.com/categories/1214-rp2350/do...
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