Cobra USB Protocol - Revision history

Infact: actual dol upload

2011-09-03T18:56:15Z

actual dol upload

← Older revision		Revision as of 14:56, 3 September 2011
Line 32:		Line 32:

	==Sending DOL files==		==Sending DOL files==

	The command from DolSendUSB is "00h 00h 14h A0h". Cobra goes into USB mode.		The command from DolSendUSB is "00h 00h 14h A0h". Cobra goes into USB mode.
	~~Then~~ it switches something in the USB connection (''I assume enabling bulk transfer, but this has to be clarified...'') and uploads a small helper program (~5kb).		After that it switches something in the USB connection (''I assume enabling bulk transfer, but this has to be clarified...'') and uploads a small helper program (~5kb).

	The uploaded program will then provide additional functions (relocate dol, jump to entry point).		The uploaded program will then provide additional functions (receive dol, relocate dol, jump to entry point).
			The actual dol ist then sent in an custum format (''I need to investigate the transformation further'')

	{\| class="wikitable"		{\| class="wikitable"
Line 42:		Line 42:
	! function !! direction !! length !! data ascii !! data hex		! function !! direction !! length !! data ascii !! data hex
	\|-		\|-
	\| HandshakeSendDol \|\| TO GC \|\| 8 (08h) \|\| \|\| [YYh YYh YYh YYh][00h 00h 14h A0h]		\| HandshakeSendDol \|\| TO GC \|\| 8 (08h) \|\| \|\| [YYh YYh YYh YYh]00h 00h 14h A0h
			\|-
			\| DolSendPayload \|\| TO GC \|\| 5280 (14A0h) \|\| \|\| [PAYLOAD.BIN]
			\|-
			\| DolUpload\|\| TO GC \|\| variable \|\| \|\| [DOL.BIN]
	\|}		\|}

	[[Category:Hacks]]		[[Category:Hacks]]

Infact: initial dolsendusb

2011-09-03T17:53:19Z

initial dolsendusb

← Older revision		Revision as of 13:53, 3 September 2011
Line 26:		Line 26:
	\| HandshakeOut1 \|\| TO GC \|\| 15 (0Fh) \|\| COBRASEND15[4x var] \|\| 43h 4Fh 42h 52h 41h 53h 45h 4Eh 44h 31h 35h [XXh XXh XXh XXh]		\| HandshakeOut1 \|\| TO GC \|\| 15 (0Fh) \|\| COBRASEND15[4x var] \|\| 43h 4Fh 42h 52h 41h 53h 45h 4Eh 44h 31h 35h [XXh XXh XXh XXh]
	\|-		\|-
	\| HandshakeIn1 \|\| FROM GC \|\| 8 (08h) \|\| ~~[4x var][4 var]~~ \|\| [XXh XXh XXh XXh][YYh YYh YYh YYh]		\| HandshakeIn1 \|\| FROM GC \|\| 8 (08h) \|\| \|\| [XXh XXh XXh XXh][YYh YYh YYh YYh]
	\|-		\|-
	\| HandshakeOut2 \|\| TO GC \|\| 8 (08h) \|\| ~~[4x var][4 cmd]~~ \|\| [YYh YYh YYh YYh][CMh CMh CMh CMh]		\| HandshakeOut2 \|\| TO GC \|\| 8 (08h) \|\| \|\| [YYh YYh YYh YYh][CMh CMh CMh CMh]
	\|}		\|}

	==Sending DOL files==		==Sending DOL files==

			The command from DolSendUSB is "00h 00h 14h A0h". Cobra goes into USB mode.
			Then it switches something in the USB connection (''I assume enabling bulk transfer, but this has to be clarified...'') and uploads a small helper program (~5kb).

			The uploaded program will then provide additional functions (relocate dol, jump to entry point).

			{\| class="wikitable"
			\|-
			! function !! direction !! length !! data ascii !! data hex
			\|-
			\| HandshakeSendDol \|\| TO GC \|\| 8 (08h) \|\| \|\| [YYh YYh YYh YYh][00h 00h 14h A0h]
			\|}

	[[Category:Hacks]]		[[Category:Hacks]]

Infact: /* Establishing a connection */

2011-09-03T17:28:53Z

Establishing a connection

@@ Line 10: / Line 10: @@
 ==Establishing a connection==
 ==Sending DOL files==
 [[Category:Hacks]]

Infact: created page, wrote introduction

2011-09-03T16:39:56Z

created page, wrote introduction

New page

=Reversing the cobra 1.5+ USB protocol=
==Introduction==
This page will show you my findings while sniffing the USB protocol of the cobra bios 1.5 up to 2.1.

The information provided here, will be used in my open source vua-access library, that can be used to interfere with the viper usb adapter.

The library and associated programs aim to provide the features of the original programs inluded with cobra and will eventually add additional features to them.

All of this is mainly written due to the lack of linux support in the original library and programs provided.

==Establishing a connection==

==Sending DOL files==

[[Category:Hacks]]