Connomore64: Cycle exact emulation of the C64 using parallel microcontrollers
Published on: 2025-07-27 03:04:41
Connomore64
https://github.com/c1570/Connomore64
Realtime cycle exact emulation of the Commodore 64 using multiple microcontrollers in parallel.
This is a proof of concept and not end user ready.
July 2024 poster (old prototype)
In a nutshell, this is (or aims to be)…
…a cycle exact Commodore 64 homecomputer emulator …
… …an (almost) chip-by-chip rebuild using multiple RP2040/RP2350 microcontrollers (<1€ per chip!)…
…interconnected using a multiplexed 8 bit bus running at about 8 MHz effectively…
running at about 8 MHz effectively… …using DVI/HDMI as video and audio output…
as video and audio output… …with microsecond exact true to original real world signal timing…
…able to interface with original hardware … …such as the C1541 floppy drive, including fastloaders… …as well as userport and (some) expansion port based hardware.
…
Additionally, this is…
…an example of running compute intensive software on cheap low powered interconnected microcontrollers …
… …an emulation f
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