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@ARM assembly gurus: How can we do a "cold reboot" from CHDK ?

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Offline Barney Fife

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Re: @ARM assembly gurus: How can we do a "cold reboot" from CHDK ?
« Reply #30 on: 12 / March / 2008, 13:28:18 »
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« Last Edit: 22 / April / 2008, 14:12:25 by Barney Fife »
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[acseven/admin commented out: please refrain from more direct offensive language to any user. FW complaints to me] I felt it imperative to withdraw my TOTAL participation. Nobody has my permission, nor the right, to reinstate MY posts. Make-do with my quoted text in others' replies only. Bye
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Offline whim

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Re: @ARM assembly gurus: How can we do a "cold reboot" from CHDK ?
« Reply #31 on: 12 / March / 2008, 13:41:30 »
@quietschi
Great, which firmware version can I mark OK then, in my list ?  :D

@Barney
Darn, still not the right address ?? Don't understand, more IDA listing study ... :(
BTW, I second that proposal ... it scares me that sth. could go wrong ...

wim
« Last Edit: 12 / March / 2008, 14:17:09 by whim »
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Offline DataGhost

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Re: @ARM assembly gurus: How can we do a "cold reboot" from CHDK ?
« Reply #32 on: 12 / March / 2008, 15:36:06 »
With the method I used, I saw my S5 do the same thing just before actually rebooting. http://stack.dataghost.com/s5reboot.avi This makes me wonder.. is it supposed to do this? It almost seems as if some important routines before rebooting are skipped... Still then, I haven't seen any example of a proper camera reboot from the original firmware, I guess this method is used only if the system crashes.

Oh yes, almost forgot... my lens does retract.
« Last Edit: 12 / March / 2008, 15:41:00 by DataGhost »
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Offline quietschi

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Re: @ARM assembly gurus: How can we do a "cold reboot" from CHDK ?
« Reply #33 on: 12 / March / 2008, 15:41:33 »
Hi whim

ixus70_sd1000 ver 102a, tested in play and record mode

in record mode my lens also retract

cheers quietschi
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Offline whim

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Re: @ARM assembly gurus: How can we do a "cold reboot" from CHDK ?
« Reply #34 on: 13 / March / 2008, 07:50:54 »
After some more playing with my cams (a620/a630) I came to the conclusion that they also don't react
properly in REC mode, so for the moment I've disabled rebooting in REC mode (since quietschi's i70 seems
to work OK, this might not be necessary for cams with a 'soft' REC/REVIEW switch) Also, I think it might
be necessary to first bring the cams in a state that resembles as much as possible 'Canon review mode',
which means to first end <CFG>, and then <ALT> state, before issueing the actual cold_reboot command.

@Dataghost
Which jump address are you using on your cam ? And do you do any 'housekeeping' before jumping ?


Updated Cold_reboot.txt (v4) attached

later,

wim

« Last Edit: 13 / March / 2008, 11:26:56 by whim »
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