I’ve joined a bunch of friends in a quest to reverse engineer and write custom software for Sunplus SPMP305x chips. These chips are inside all sorts of chinese media players, particularly the fairly powerful kind with a camera, video playback, etc. The chip is based around an ARM926EJ-S core, but the peripherals around it are completely custom – check out the marketing blurb. Most current work is on reverse engineering the hardware interface so we can completely replace the default firmware.
