Post your views and questions about the Akai MPC2500
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By JamesJeffery Tue Apr 28, 2009 12:18 am
Was **** about. Dissasembled the JJOS and managed to change the boot screen, all worked. Then I changed it again to something else, installed the modified OS. Now it sticks at the loading screen. I have held the window key and I get a message:

MPC 2500 OS Update Wrong Card!!!

Any ideas how to get this thing working. lmfao. Cant believe I am laughing about it. ha, thing cost me a grand.
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By JamesJeffery Tue Apr 28, 2009 12:28 pm
Lets hope I can fix this. About to get a card reader.

As for the code. I'm writing a full disassembler for the Renesas SH7727 DSP so hopefully I'll at least have the assembly source code for the Akai OS. It's a step in the right direction. Going to disassemble JJOS1, at least that's the plan.

Once I get the source I can begin to understand it and convert that into C++ and begin playing about. Renesas have their own IDE (which I now have). Will take a LONG! time though. Months.

Next generation of MPC OS's could be in the pipeline if any tech heads want to get involved once I have the assembly source. It's all about trust though, I don't want this leaked all over the net.