Rockbox Ports are now being developed for various digital audio players!
According to the wiki, the lack of a USB connection to dump the raw flash data is one thing that's holding up a proper flash driver. Has the regular audio output been considered? The player seems to have enough RAM and processor power to allow enough compression to reduce the amount of data sent to a manageable level (at least if you make sure that any unallocated space is cleared, either by formatting or adding big empty files.) You'd have to write software on the PC side to receive the data as well, but altogether it would seem to be a relatively simple process?
Investigate and implement a software USB stack (the ability to dump raw NAND data to a PC would help item 1 considerably).
I just flashed my D2 to the D2+ firmware with rockbox. However, when I try to boot rockbox, all I get is "*PANIC* Max NAND write caches reached". I'm using a 16GB D2. Did I not install something properly, or is rockbox still not quiet ready for the 16GB?Any help would be greatly appreciated.
The "obvious" thing might just be to try upping the MAX_WRITE_CACHES value in firmware\target\arm\ata-nand-telechips.c (eg. from 8 to 16), and then re-compiling the bootloader. I can't see why that should be necessary, though.If that still doesn't work, I'll need to write some code to print out some more debug information from your D2. Without being able to reproduce the problem myself or be able to retrieve data directly from your D2, this could be tricky.
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