Hey all, I'm trying to kick-start a new Rockbox port--I have an off-brand player, a Yukai PVR-H240, that has really crappy firmware, and it would be really sweet to get RB running on it.
However, I've hit a wall. I have figured out a lot of the files in a data directory (see my work on this here: http://jbotalan.frih.net/YukaiPVR.htm) and I don't see anything that looks like a firmware binary. I ID'd a chip inside that is a 16MB flash chip; maybe that is all for the firmware. However, that sounds small. That leads me to wonder if there might be a hidden partition (like an iPod) on this hard drive. How do I discover whether or not there is such a hidden partition? I must confess I really don't know what I'm doing, but I am interested in learning. I don't know what processor this is running on; I can only access one side of the circuit board right now. I need to figure out how to disassemble the player some more. Also, I discovered an audio codec chip--a WM9711G. I found a datasheet online for the WM9711L, and it says nothing specifically about MP3 or MP4...does that mean the processor does this? Do I know at this point whether or not this is a HW codec or a SW codec? I would publish the scans I got of the circuit board, but you cannot see the letters on the chips even at 600dpi--the board is spaced an inch away from the scanner bed because I don't know how to take the next stage apart. I will probably toy with it some more tomorrow. Thanks, Jacob PS. I realize I'm in way over my head, but I find it fun right now, so I'm going to keep immersing myself until I get bored. Hey, how else do you learn? :-)
