ELPH 340 HS 100a firmware dump

rkomar

98

« on: 15 / July / 2014, 04:02:58 »

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Using the Universal Dumper script appended to the extend.m file, I got a 16MB dump of the firmware from my ELPH 340 HS camera. The dump is available at: http://www3.telus.net/rkomar/PRIMARY.BIN. ACID tells me that the firmware version is 100a. CBDUMPER.LOG has the line "FF010000 dry" in it.

I got a bit of experience helping to test the A4000 port, and would like to help get the port to this model going, as well. What previous port would be a good place to start from?

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nafraf

1308

Re: ELPH 340 HS 100a firmware dump

« Reply #1 on: 15 / July / 2014, 08:46:13 »

This might help you: http://chdk.setepontos.com/index.php?topic=11597.msg114352#msg114352

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Hardware_Hacker

322

Re: ELPH 340 HS 100a firmware dump

« Reply #2 on: 15 / July / 2014, 09:21:22 »

Hi rkomar,

It's almost identical to the Ixus 265-100a

DumpF = Ixus265-100a

49065 same row(s)
42 Unimportant difference row(s)
273 Important Ixus265-100a orphan row(s)
52 Important Elph340-100a orphan row(s)

See attached
[selected] AlphNumeric Differences.png
[selected] Hexidecimal Differences.png

Not attached yet
[selected] UnImportant Differences.png

"...What previous port would be a good place to start from?..." Sx510-100a is very close.

H-H

AlphNumeric Differences.png (49.84 kB, 693x912 - viewed 114 times.)

Hexidecimal Differences.png (65.57 kB, 1170x916 - viewed 108 times.)

« Last Edit: 15 / July / 2014, 09:27:47 by Hardware_Hacker »

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rkomar

98

Re: ELPH 340 HS 100a firmware dump

« Reply #3 on: 15 / July / 2014, 12:03:58 »

Sorry everyone. I looked through the DryOS Development threads to see if there was a thread for this model, but didn't see the Firmware Dumping section. (head slap)

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Hardware_Hacker

322

Re: ELPH 340 HS 100a firmware dump

« Reply #4 on: 15 / July / 2014, 16:57:07 »

Quote from: rkomar on 15 / July / 2014, 12:03:58

Sorry everyone. I looked through the DryOS Development threads to see if there was a thread for this model, but didn't see the Firmware Dumping section. (head slap)

Continued from #2

Final attachment UnImportant Differences.png

Continued Here #21
http://chdk.setepontos.com/index.php?topic=11597.msg114352#msg114352

srsa_4c Re: ELPH 340 (IXUS 265) « Reply #21 on: 11/July /2014

"...A partial boot.c is attached...."

H-H

UnImportant Differences.png (33.78 kB, 576x919 - viewed 108 times.)

« Last Edit: 15 / July / 2014, 17:02:36 by Hardware_Hacker »

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srsa_4c

4451

Re: ELPH 340 HS 100a firmware dump

« Reply #5 on: 15 / July / 2014, 17:22:02 »

Quote from: Hardware_Hacker on 15 / July / 2014, 09:21:22

It's almost identical to the Ixus 265-100a

From CHDK perspective they are identical. The differences are in camera-specific data areas (calibration, camera settings, etc.). Further binary comparison is therefore meaningless.

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