Memorex MMP8568-acm

[henrykins111]

      A couple of days ago, i picked up this neat little player by Memorex. It looks alot like the attachment file. It is a 1gb player sporting a 1.5 inch diagonal screen. There is apparently a firmware called "deco"(although i can't find it). If any of you guys can find that firmware and dissect it then you might be able to find a way to make a port of rockbox. I was just wondering because i picked one up at a local goodwill for $15.00. However, I don't really know any technical specs. If any of you guys could even find this "deco" then that would be great. That way, more than one of us could work on the firmware.

[markun]

The best way to find the technical specs is to open up your player and take some pictures of the chips so we can identify them.

Here's some more info about starting a port (and you don't need to be a programmer for the first parts)

http://www.rockbox.org/twiki/bin/view/Main/NewPort

[henrykins111]

I was pretty reluctant, but i took apart the player. this is what i found about the chips
Here are whats on the chips in no specific order.






Samsung 740
k9g8g08u0m
      pcb0
FEH616pac



ATJ2135
g60700a  16c





issi ig2516100ett
a85126x 0735

[Bagder]

The ATJ2135 is an SoC made by Actions Semiconductor and seems to be common in lots of Chinese "mp4 players". I've not found any data sheet for it.

[markun]

Found some info about the ATJ2135 on this site: http://www.mcuol.com/News/185/14155.htm

(translated with google)

The chip includes 180 MHz frequency of 32 MIPS intelligent core and 96 MHz 24-bit DSP audio processor, plus video acceleration algorithm used in the media accelerator core hardware architecture

[henrykins111]

i know this thread is pretty dead, but.......  :DI found the firmware "deco"!!! it is a firmware that uses a program to install the firmware which can be in *.bin     *.fw         and         *.fwu       formats. you can get the files here:

http://www.memorex.com/support/support_product_detail.php?cid=&sid=&pid=50699&fid=
 

[mcuelenaere]

Some more info can be found here.

[saratoga]

Any idea what the password is?

[mcuelenaere]

Any idea what the password is?

The password is in the RAR comments.
It's:

Code: [Select]

www.mpeg9.com