** GameCube Bootchips **

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** GameCube Bootchips **

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boki2002

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20. December 2005 @ 01:08

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GameCube Bootchips At Cheap Prices!

"Most of you already know that I helped Cheq dump the bootcode for the Qoob. Though my part was minimal it helped get the needed code to boot games. This process is "transparent" and connects to the serial port underneath the DVD assembly and transmits a few bytes of code to boot legitmate backups and homebrew. Of course this code can be sent using simply a cheap solution such as PIC chips.

Along TMBINC along with Cheq have created a wiki page (http://tmb.elitedvb.net/dvd-game/index.php/CN302) to support developers which now contains the soldering diagram and the code to be sent. Hopefully someone will post some binaries soon. Of course I call this a bootchip as all this will allow you to do is transparently boot things, but possibly with the use of a more expensive chip we could boot GCOS."

http://tmb.elitedvb.net/dvd-game/index.php/CN302

CN302

From Dvd-game
CN302 is a 10-pin serial connector on the middle of bottom of the DVD drive's board. It connects to various pins of port 8. The drive can accept incoming Serial Commands and output data.

CN302 -> MN10200

1 -> GND
7 -> 46
6 -> 47
2 -> 48
4 -> 49
3 -> 50

So:
--------------
|10 09 08 07 06|
|01 02 03 04 05|
--------------

PortNr CN302 Pin MN10200 Pin Use by originial Firmware
P80 7 46 Port
P81 6 47 Port
P82 2 48 SBT3 halfduplex out (actually seems to be in)
P83 4 49 TM4IO input SBI3 input (use that as SI)
P84 3 50 SBO3 output
P85 (?) 51(?) TM9IOA input ST4 input
P55 (?) (?) SBO0
P42 (?) (?) TM5IOA

Thanks to "brakken" teh overseer of http://www.tehskeen.com

[ + quote]

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