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Looking to dump SX30 IS firmware. Who can help?!

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Offline philmoz

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Re: Looking to dump SX30 IS firmware. Who can help?!
« Reply #30 on: 25 / November / 2010, 21:08:53 »
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Yup- sorry, fat fingers.   How did you find canon_shoot_menu_active ?

I'm using the SX20 version 102d port as a reference. The stubs files list the location in the SX20 code where the values where found so I go looking for the same functionality in the SX30 IDA dis-assembly. They seem pretty close so I've been able to find most things fairly easily.

The SX20 comments say it is found in this function.
sub_FF9A9F74
                 LDR     R1, =0x8844
                 MOV     R0, #0
                 STRB    R0, [R1]
                 STRB    R0, [R1,#1]
                 B       sub_FF9AA104

I found this one in the SX30 and the code around it was also very similiar so I'm assuming this is it.
sub_FF9DE724
                 LDR     R1, =0x9900
                 MOV     R0, #0
                 STRB    R0, [R1]
                 STRB    R0, [R1,#1]
                 B       sub_FF9DE8CC

Note, I haven't tested this yet so I reserve the right to be completely wrong  :D

Regards,
Phil.
CHDK ports:
  sx30is (1.00c, 1.00h, 1.00l, 1.00n & 1.00p)
  g12 (1.00c, 1.00e, 1.00f & 1.00g)
  sx130is (1.01d & 1.01f)
  ixus310hs (1.00a & 1.01a)
  sx40hs (1.00d, 1.00g & 1.00i)
  g1x (1.00e, 1.00f & 1.00g)
  g5x (1.00c, 1.01a, 1.01b)
  g7x2 (1.01a, 1.01b, 1.10b)

Re: Looking to dump SX30 IS firmware. Who can help?!
« Reply #31 on: 04 / December / 2010, 20:10:52 »
is anybody getting further with this?

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Offline reyalp

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Re: Looking to dump SX30 IS firmware. Who can help?!
« Reply #32 on: 04 / December / 2010, 20:45:56 »
Don't forget what the H stands for.

 

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