u/d1722825in r/embedded • Recommends
On “Are Microprocessors With An Open Memory Map Still Made?”
…AM (or swapped out to disk).
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If you are interested in these I can highly recommend FPGAs. You can basically pick the things you want (let's have two CPU cores, add an UART, two GPIOs, a small internal RAM) and create a custom system with as many hacks as you desire.
A small teaser (Microblaze is a CPU core from one of the big FPGA vendor):
link to this video
If you really want, you could implement (download) a 68k CPU in the FPGA and expose the whole memory bus on the FPGA's pins.
There are some cheap (at least in the FPGA world) developer boards from Digilent / Terasic.…