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CHDK for SX120

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Offline reyalp

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Re: CHDK for SX120
« Reply #590 on: 21 / August / 2013, 17:15:34 »
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You are saying the sx120 build on http://mighty-hoernsche.de/ does not work, the camera just shuts off?
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Offline srsa_4c

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Re: CHDK for SX120
« Reply #591 on: 21 / August / 2013, 17:49:45 »
Quote from: reyalp on 21 / August / 2013, 17:15:34
You are saying the sx120 build on http://mighty-hoernsche.de/ does not work, the camera just shuts off?
There are numerous questions about startup related problems, most likely boot.c would need to be rewritten.

@Ranek4

Some hints:
http://chdk.wikia.com/wiki/SX120IS#CHDK_Specialties
"To load CHDK from the card, turn the camera on by pressing PLAYBACK and keeping it pressed down while accessing the menu to load the firmware update."

http://chdk.setepontos.com/index.php?topic=4284.msg79624
"Try pressing the shutter button after the screen goes black"
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Offline Ranek4

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Re: CHDK for SX120
« Reply #592 on: 27 / August / 2013, 18:35:11 »
Hell Yeah! :D :D It really works, but only with "pressing the shutter button". Thank you srsa_4c. :)
Does anybody know, where can I check releasing date (year) of my Camera's  model. I mean: is it before 2011 or after 2010? & If it worth to install CHDK Bootable SD Card Method on 128MB card, or is better to get bigger, for ex. 16 or 32 GB and witch of this two sizes is more practical...? :)
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Offline waterwingz

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Re: CHDK for SX120
« Reply #593 on: 27 / August / 2013, 18:44:56 »
Quote from: Ranek4 on 27 / August / 2013, 18:35:11
Does anybody know, where can I check releasing date (year) of my Camera's  model. I mean: is it before 2011 or after 2010? & If it worth to install CHDK Bootable SD Card Method on 128MB card, or is better to get bigger, for ex. 16 or 32 GB and witch of this two sizes is more practical...? :)
The SX120 was released in 2009 :  http://chdk.wikia.com/wiki/SX120IS

You will need to format any card larger than 4G with dual partitions with this camera if you want to autoboot.

I'd suggest you use the STICK utility :  http://zenoshrdlu.com/stick/stick.html
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Offline nafraf

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Re: CHDK for SX120
« Reply #594 on: 12 / February / 2014, 21:17:26 »
SX120 100b: Test version with jpeg remote capture support and simpler loader.

« Last Edit: 13 / February / 2014, 13:00:12 by nafraf »
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Offline lyzby

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Re: CHDK for SX120
« Reply #595 on: 12 / February / 2014, 22:05:05 »
I copied the new files to the SD, but it looks like a step back for me--fails at "rec"

 /usr/src/chdkptp/chdkptp -i -c
connected: Canon PowerShot SX120 IS, max packet size 512
con> rec
unexpected return code 0x2ff
ERROR: failed
con> rec
unexpected return code 0x2ff
ERROR: failed
con> =switch_mode_usb(1)
unexpected return code 0x2ff
ERROR: failed
con> q
bye
ERROR: Could not close session!
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Offline nafraf

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Re: CHDK for SX120
« Reply #596 on: 13 / February / 2014, 13:03:41 »
Quote from: lyzby on 12 / February / 2014, 22:05:05
I copied the new files to the SD, but it looks like a step back for me--fails at "rec"
Please test this new version.
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Offline lyzby

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Re: CHDK for SX120
« Reply #597 on: 13 / February / 2014, 13:35:18 »
Quote from: nafraf on 13 / February / 2014, 13:03:41
Please test this new version.

Yes, that worked for rs multiple times using chdkptp on my headless dockstar running debian.  After the following session, test16.jpg, test17.jpg, and test18.jpg were available for viewing from my laptop browser.

:/usr/src/chdkptp/lua# /usr/src/chdkptp/chdkptp -i -c
connected: Canon PowerShot SX120 IS, max packet size 512
con> rec
con 1> rs /var/www/test16
con 4> lua set_zoom(50)
con 5>  rs /var/www/test17
con 8> lua set_zoom(25)
con 9> lua set_zoom(5)
con 10> lua set_zoom(30)
con 11> rs /var/www/test18
con 14> q
bye

Many thanks.

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Offline rivlb

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Re: CHDK for SX120
« Reply #598 on: 02 / September / 2024, 12:49:22 »
Hello everyone. Recently I wanted to build my own CHDK for SX120IS to test some ideas. But it seems that fi2 keys is needed to build ps.fi2 file and run CHDK on camera. Can anybody share key/iv addresses for SX120IS? I can't find this data on the forum, or my search is too shallow :(. Or give me a guide how to find it.
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Offline reyalp

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Re: CHDK for SX120
« Reply #599 on: 02 / September / 2024, 13:35:28 »
FWIW, you don't need to build an FI2, you can just use bootable SD card. If you want to use FI2 loading to make the card bootable, you can use the autobuild for that.

The notes.txt for SX120 says FI2 is disabled because it doesn't work, but this seems to be outdated, since it isn't actually disabled. Someone in the discord did mention that they needed to hold the play button while doing the firmware update process though, which suggests the startup key logic may be wrong.

Anyway, if you look in stubs_entry.S, you'll see
Code: [Select]
KEYSYS = d4# Found @ 0xffff1d0c
That should be the address of the key. The IV is the same as all the later d4* ones with offsets listed.
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