Rockbox Development > New Ports
Cowon D2
Rotareneg:
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?
gevaerts:
--- Quote from: Rotareneg on April 12, 2009, 08:39:30 PM ---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?
--- End quote ---
Does the wiki still say that? If so, it's outdated. Shotofadds has used USB to get at the data.
Rotareneg:
Yep,
--- Quote ---Investigate and implement a software USB stack (the ability to dump raw NAND data to a PC would help item 1 considerably).
--- End quote ---
shotofadds:
I'll fix the wiki page - the D2 has had semi-working software USB for some time now, although it's disabled in the main builds. In fact, it's the main reason that reading from the internal flash is as reliable as it is today.
The wiki page could really do with a bit of general updating - at the moment it doesn't even have a status table of what works and what doesn't.
grantmasterflash:
--- Quote from: Rapide_23 on March 28, 2009, 01:16:28 AM ---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.
--- End quote ---
There must be some boot issue with Rockbox on D2's that have been upgraded to D2+ firmware, cause I'm having this same "*PANIC* Max NAND write caches reached" problem referred to by Rapide_23. I also notice a few people have posted in the D2 Rockbox iAudiophile forum with this issue on D2->D2+ (for example, http://iaudiophile.net/forums/showpost.php?p=230625&postcount=6).
I used to play around with Rockbox when I was on D2 3.57 with no boot problems (never experienced this PANIC message), but since flashing my D2 to D2+ 3.02, I can no longer boot Rockbox because I always see this PANIC message.
I've tried this with Andiator's 3.02 Rockbox bootloader available from his ftp site (2009.04.01 rev20603) and with a bootloader I compiled myself earlier today with the daily build (090425).
I'll be glad to help with debugging this issue on my device if anyone can tell me what is needed. I'm not completely new to using/installing Rockbox, but I am new to debugging it.
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