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A470 Porting

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Offline Microfunguy

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Re: A470 Porting
« Reply #230 on: 29 / July / 2009, 15:21:09 »
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Quote from: MrSpoon on 29 / July / 2009, 14:37:45
My apologies

I thought you were lost at sea !

Quote
hopefully you'll be so kind as to attach a diff of your any changes you make :)

You know I will, but I cannot make any changes because I do not have the information  :)

Let us leave it until next week.


David
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MrSpoon

Re: A470 Porting
« Reply #231 on: 01 / August / 2009, 13:22:04 »
Hm, will finally get around to changing constants to actual a470 values. I'll upload a diff when I'm done, in the meantime here's changes so far:

  • fl_tbl is {6300, 8100, 9800, 12100, 14800, 17600, 21600}
  • in core/kbd.c the a470 should have a zstep table size of 7, like the a450
  • aperture_sizes_table as follows:
Code: [Select]
const ApertureSize aperture_sizes_table[] = {
    {  9, 307, "3.0" },
    { 10, 333, "3.2" },
    { 11, 360, "3.5" },
    { 12, 391, "4.0" },
    { 13, 426, "4.5" },
    { 14, 457, "5.0" },
    { 15, 495, "5.8" },
    { 16, 586, "9.0 ND" },
    { 17, 612, "10.0 ND" },
    { 18, 639, "10.0 ND" },
    { 19, 670, "11.0 ND" },
    { 20, 705, "14.0 ND" },
    { 21, 736, "14.0 ND" },
    { 21, 774, "18.0 ND" },
};
    « Last Edit: 01 / August / 2009, 16:50:08 by MrSpoon »
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    Offline Gogan

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    Re: A470 Porting
    « Reply #232 on: 03 / August / 2009, 15:44:16 »
    Hello. I'm new here. I bought today my a470. I have downloaded and installed chdk. It's very interesting for me, 'couse i am programmer, and allways wanted to programm at least time lapse video (make a photo every 1 or 2 secs) for my old olympus c-150, but i could not. I stood for 15-20 minutes to make 10 seconds video =)
    For now i'll study this forum, maybe will try look in code and be helpful. sorry, my english so bad.

    Found a bug:
    I tried to do bracketing with +-4 exp. 1st was just fine, i was holding down shutter untill 3 photoes comes up (normal, lighter and darker), but second time maybe i was holding to much (yes, i repeated that, holding to much does it), so camera took 3rd dark image and holds. No buttons takes affect (pressing "print" and shutter lets to showing text "standard script..." etc), only when i chosed play mode, pressed "on/off" and then "print" button, shutter clicked and camera shut down. On flash i found 4th picture all white.

    hello to all from Ukraine, with respect, Vova aka Gogan.

    p.s have a 1.02c firmware
    « Last Edit: 03 / August / 2009, 15:46:58 by Gogan »
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    Offline Microfunguy

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    Re: A470 Porting
    « Reply #233 on: 10 / August / 2009, 17:02:43 »
    Please note the following corrections for firmware 101b in stubs_min.S  :-

    DEF(canon_shoot_menu_active,0x9718)   
    DEF(recreview_hold, 0x95E4)

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    MrSpoon

    Re: A470 Porting
    « Reply #234 on: 24 / August / 2009, 15:52:57 »
    Just a heads up that I'm no longer working on CHDK. The above changes have yet to be committed.
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    Offline gotgrip_com

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    Re: A470 Porting
    « Reply #235 on: 24 / August / 2009, 19:24:35 »
    You'll be missed...
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    Online reyalp

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    Re: A470 Porting
    « Reply #236 on: 24 / August / 2009, 20:45:22 »
    I've committed the changes in
    http://chdk.setepontos.com/index.php/topic,3368.msg37418.html#msg37418
    and
    http://chdk.setepontos.com/index.php/topic,3368.msg37738.html#msg37738

    Regarding canon_shoot_menu_active and recreview_hold, are the other versions correct ? It looks to me like 100e should probably be the same as 101b, while 102c is probably different. If someone with the cameras in question can check, that would be helpful.

    edit:
    I can confirm that 0x9718 is used the same way in 100e and 101b, and that 0x9768 is the corresponding value in 102c.

    I'm not sure about the recreview_hold value, it must be an offset from something else.

    I have no idea whether any of these values are actually correct.
    « Last Edit: 25 / August / 2009, 20:02:54 by reyalp »
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    Offline ghatothkach

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    Re: A470 Porting
    « Reply #237 on: 29 / August / 2009, 11:46:44 »
    hi
    I am using the autobuild version 0.9.8-794/100e with GM1.00E.
    I initially had trouble bracketing and thought it was a bug, however I was able to do the bracketing.

    One thing still I am not sure, to get the bracketing I need to physically hold the shutter button down until all the shots are taken. why is this so, why does it not take all the shots at one press. ?

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    Online reyalp

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    Re: A470 Porting
    « Reply #238 on: 29 / August / 2009, 18:43:02 »
    Quote from: ghatothkach on 29 / August / 2009, 11:46:44
    hi
    I am using the autobuild version 0.9.8-794/100e with GM1.00E.
    I initially had trouble bracketing and thought it was a bug, however I was able to do the bracketing.
    If you can explain what confused you, perhaps the documentation can be improved.
    Quote
    One thing still I am not sure, to get the bracketing I need to physically hold the shutter button down until all the shots are taken. why is this so, why does it not take all the shots at one press. ?
    Because it relies the canon continuous mode, which works this way.

    If you want to do it in a single press, you can could do it with a script.
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    Offline fe50

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    Re: A470 Porting
    « Reply #239 on: 30 / August / 2009, 05:47:25 »
    Quote from: ghatothkach on 29 / August / 2009, 11:46:44
    One thing still I am not sure, to get the bracketing I need to physically hold the shutter button down until all the shots are taken. why is this so, why does it not take all the shots at one press. ?

    You can also use the Canon custom timer, in most (all ?) Powershot cameras you can select a range from 1 to 10 shots;
    this works fine with the CHDK bracketing...
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