After many months of looking at NTSC waveforms on my scope (go video-sync trigger!) I have finished the Fuzebox, a fully open-source, DIY 8-bit game console (based on the Uzebox I posted about a while back). It is based almost completely on an ATmega644 with some video encoding help from the AD725.
It is designed specifically for people who know a little bit of programming (such as having messed with an Arduino) to expand into designing and creating their own video games and demos. A full-featured core runs in the background and does all the video and audio processing so that the game code stays clean and easy to understand.
- Full 256 simultaneous output colors, 240×224 pixel resolution
- Tile & sprite support
- Two player ports, either with Super Nintendo or classic Nintendo controllers (although the kit comes with SNES)
- NTSC RCA composite and S-video out (PAL not supported at this time 🙁 )
- 4 channel PCM output mono audio for music and effects
- SD/MMC card support for future expansion
- Built on an Atmel AVR core, 64KB flash and 4KB of RAM
- Main microcontroller chip is preprogrammed with an STK500-compatible (sometimes referred to as Arduino-compatible) bootloader
- Write game code in C, using fully open source tools on any platform