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CRAIG CMP641F... Running a modified build of Rockbox?

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r00tb33r:
I recently purchased a CRAIG CMP641F player for ~$10 new.  I did it just for kicks, I wanted to see just how good/bad a device with such impressive feature claims could be...  The touchscreen is a lackluster as you might expect but the software...  I suspect that the device is running a modified/unofficial build of Rockbox.
How can I check?  It's already apparent that it plays more formats than the spec sheet claims.  I'm playing me some Rush in FLAC format, and FLAC is not mentioned in format specs.
The top bar with battery and volume, and the playback screen feel very Rockbox-like.  It's just one of those gut feelings.

tpijag:
Mount it via your desktop and poke about. What do you find?
My gut says your gut be wrong.

r00tb33r:
It creates 2 mount points, via the mass storage protocol (not MTP).  One is purely a data partition (initially had nothing in it) and the other I suspect belongs to the SD slot.  The player did read my 8GB card on the 2nd startup, but doesn't seem to want to create mount points when I connect to PC.

I think I'm gonna take it apart and see what kind of chips I find.  Might post board pics while I'm at it.
Post Merge: April 18, 2012, 11:18:49 PMRockchip RK2705A-B
http://www.rockbox.org/wiki/RockChip#rk270x_series
http://www.rockbox.org/wiki/Rockchip27xxPort

I suppose extracting the image is the only way to know for sure...
Post Merge: April 18, 2012, 11:28:02 PMYeah this thing is pretty much all integrated into the Rockchip.  Aside from that the only other notable chips are XPT2046 touchscreen controller, Intel flash and Samsung SDRAM.
Post Merge: April 18, 2012, 11:30:59 PMI should also note that the whole thing was hand soldered...  SMD resistors and caps are all crooked and uneven amounts of solder and "excess cones".
Post Merge: April 18, 2012, 11:45:01 PMThe SDK linked in the wiki has been removed it seems...

wodz:
It pretty much looks like ramos T8 clone. I don't think it uses modified rockbox but it should be possible to port rb to such device with moderate amount of work. XPT2046 is connected to HSADC most probably. The very first step would be to extract firmware from the device and dissasm it to see what lcd controller is used.

r00tb33r:

--- Quote from: wodz on April 19, 2012, 10:42:16 AM ---It pretty much looks like ramos T8 clone. I don't think it uses modified rockbox but it should be possible to port rb to such device with moderate amount of work. XPT2046 is connected to HSADC most probably. The very first step would be to extract firmware from the device and dissasm it to see what lcd controller is used.

--- End quote ---

My unit looks identical to the Ramos T8 you mentioned.  However I looked images of user interface and there are differences...

Anyway, how do I get the firmware image off this thing?

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