This was my first attempt to recreate the Commodore 64. I was able to get it more or less working, but the design still contains timing issues. Currently I am working on a C64 ATX board.
Please note that this design is still buggy. If you are interested in my work then you should wait until I release my C64 ATX project.
This is a rebuild of the Commodore 64 using the original schematics.
Features/changes:
- Replaced DRAM with 2 x 32K SRAM
- Modulator with S-Video and Composite output
- PLA replaced with EEPROM
- PS/2 keyboard connector
- VIC and SID voltage selectable by jumper
- replaced all C64 ROM chips with one EEPROM
- 4 kernal images selectable by switches
- clock generation by ICS 525 clock chip