Using C64 Core on MiniMig boards.

[Illuwatar]

The question is basically that who would like to write the FPGA code? The MiniMig Spartan 3 should be enough to run a complete C64 class computer entirely off the FPGA (leaving the MC68000 idling). Any machine that is of Amiga 500 class using a 68000 CPU should be possible to implement too (early Apple and some Atari systems for example). Verlog/VHDL-gurus out there - start the coding...;-)

[Illuwatar]

Maybe my 3.0 version of my MiniMig could be something - 8 MB SRAM and the yaqube ARM controller directly on the board (no more PIC). Already on MiniMig 2.0 there is a new pin header that allows direct access to the pins of the FPGA that goes to the video DAC. I could add more pin headers, but I need to know on what side/bus - memory or CPU? To keep signal integrity, a header with tight spacing should be used (like the one I have for the RGB pins). How many signals from the FPGA is actually needed for these add-ons?

[Illuwatar]

If the custom chips needed to implement these are in par with the A500 OCS or less and if you are able to reverse-engineer them, then it should be possible.