J-VIC - MOS 6569 FPGA REPLACEMENT

FPGA 6569 - J-VIC

FPGA based replacement for MOS 6569 VIC-II

Project started in 2020. Basic video output with all video modes achieved the same year.

Project goal is to make 100% compatible FPGA replacement for MOS 6569, that is physically same size as original

One goal is to learn more about FPGA designing, so all the code is completely self written

October 2022 status:

About 90% complete. Fully usable, with some issues with some games and demos

PCB needs some modifications

VSP, FLI, Sprite crunch, Line crunch, Sprite stretch, Sprite multiplexing, border opening and other demo effects working

Some minor timing issues needs to be resolved

Light pen support not yet implemented

Sprite collision detection not implemented

January 2023 status:

Fixed some issues, but still some small issues with some games and demos

New pcb: