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Powershot SX620 HS CHDK

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Offline blackhole

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Re: Powershot SX620 HS CHDK
« Reply #50 on: 09 / January / 2020, 15:20:07 »
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Test build with modification from srsa's post.
In the memory browser, select address 0x1a278, press PLAY to exit ALT mode.
Pull the zoom lever all the way in, and watch the changes in MEM and PS1.

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Offline Caefix

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Re: Powershot SX620 HS CHDK
« Reply #51 on: 10 / January / 2020, 12:29:19 »
 :) The viewable change is PS1: pos "5." [08>>00]. (right out)
MEM line still jumping because of a missing 0 in a "%2x".
left out is clear to see in PS2, pos"..".7 [04>>00].
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Offline srsa_4c

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Re: Powershot SX620 HS CHDK
« Reply #52 on: 10 / January / 2020, 14:05:48 »
:) The viewable change is PS1: pos "5." [08>>00]. (right out)

left out is clear to see in PS2, pos"..".7 [04>>00].
Looks like the "ruler" is ambiguous.  :(
I'd guess the first number is 0x00080000, the second is 0x40000000, because of the following lines in physw_bits.txt (file created by the sigfinder)
levent 0xffffffff, 0x00080000, index 0
levent 0xffffffff, 0x40000000, index 1

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Offline Caefix

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Re: Powershot SX620 HS CHDK
« Reply #53 on: 10 / January / 2020, 14:28:38 »
 ???
PS1 the "...7" byte changes 0000..0021, followed by 0000 0000.

Code: [Select]
D:\hostluaPortable\!Forum\Sx620\FLROMLOG.LOG


[1222]00373090: UI:Button:0x00000859:UnpressWideButton
[1238]00373100: UI:Button:0x000009A2:UnpressSwOne
[1298]00373480: UI:Button:0x00000854:PressTeleButton
[1307]00373540: UI:Button:0xFFFFFFFF:UnknowControlEvent
[1365]00375070: UI:Button:0x000009A1:PressSwOne
[1373]00375260: UI:Button:0xFFFFFFFF:UnknowControlEvent
[1378]00375320: UI:Button:0x00000855:UnpressTeleButton
[1534]00038550: UI:Button:0x000009A2:UnpressSwOne
[1685]00044290: UI:Button:0x00000859:UnpressWideButton
[1748]00047610: UI:Button:0x00000854:PressTeleButton
[1874]00053890: UI:Button:0x00000855:UnpressTeleButton
[1907]00060520: UI:Button:0x00000858:PressWideButton
« Last Edit: 10 / January / 2020, 14:58:18 by Caefix »
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Offline blackhole

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Re: Powershot SX620 HS CHDK
« Reply #54 on: 10 / January / 2020, 15:13:36 »
Do you see in the memory browser at 0x0001a278:
DWORD: xxxxFD73
WORD: FD73
BYTE: 73

You wrote earlier:
0x0001a278:
PS3:0x3294fefa is now xxxxFD73 constant
right/2-> f973 //Zoomlever pressing right, half way (_in)
left/2 -> f573

<-->  zoom/2 work fine now, zoom full disturbs firmware.
At 0x0001a278 you see PS1,not PS3
It means:
right/2-> f973  0xFD73-0xF973 = 0x400 { 0, KEY_ZOOM_IN ,0x00000400 }, //half

left/2 -> f573  0xFD73-0xF573 = 0x800 { 0, KEY_ZOOM_OUT ,0x00000800 }, //half

Can you confirm that the ZOOM keys works fine in ALT mode if you do not push the zoom lever all the way?



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Offline Caefix

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Re: Powershot SX620 HS CHDK
« Reply #55 on: 10 / January / 2020, 15:19:44 »

Confirmed that the ZOOM keys works fine in ALT mode if you do not push the zoom lever all the way!
All lifetime is a loan from eternity.

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Offline blackhole

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Re: Powershot SX620 HS CHDK
« Reply #56 on: 10 / January / 2020, 15:32:05 »
Looks like the "ruler" is ambiguous.  :(

Looks good to me on the sx410.
Judging by the image from the post above, he can see the required bits in the MEM line.

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Offline blackhole

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Re: Powershot SX620 HS CHDK
« Reply #57 on: 10 / January / 2020, 15:37:06 »

Confirmed that the ZOOM keys works fine in ALT mode if you do not push the zoom lever all the way!
See if you see a change in the MEM line if you move the zoom lever. Watch last 4 digits (fd73)


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Offline Caefix

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Re: Powershot SX620 HS CHDK
« Reply #58 on: 10 / January / 2020, 15:42:45 »
MEM line still jumping because of a missing 0 in a "%2x".  in pos "fd" ::)
r/2 fd >> f9
l/2  fd >> f5

More bits &tomorrow...

Bit generator reactivated....
No visible changes in fd73. Was a logfile possible here?
Edit: btw. logged ubtest.bas with CurrentPrivateUbasic peeking for &PS1 all keys show xxxx fd73.
« Last Edit: 11 / January / 2020, 12:22:32 by Caefix »
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Offline blackhole

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Re: Powershot SX620 HS CHDK
« Reply #59 on: 12 / January / 2020, 07:07:24 »
:) The viewable change is PS1: pos "5." [08>>00]. (right out)
0x8401 - 0x401 = 0x8000
{ 0, KEY_ZOOM_IN         ,0x00008000 }, //full ?
Quote
left out is clear to see in PS2, pos"..".7 [04>>00].
0x421 - 0x21 =0x400
{ 1, KEY_ZOOM_OUT        ,0x00000400 }, //full ?

Try this build.

 

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