powershot a495

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    powershot a495
    « on: 01 / April / 2010, 21:08:46 »
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    I wish for the Powershot A495 to be supported, and I've tried to take steps to help the developers (for I am not one), such as finding version information and such. The ver.req and vers.req do not work. Version.req does not either. I tried pressing funcset + down as recommended for another camera and nothing happened. I also tried using the NewDryOS dumper. It did freeze the camera, but the empty.dum was empty when I string-tested it. I also tried the DryOS dumper. I did not try VxWorks because the camera is a new model.

    I also tried getting another CHDK for an extremely similar camera to work, the A480 firmware. The A480 has a virtually identical button layout, body, and processor, so I thought maybe it would work. I got a "Firm Update" option in the menu, but it immediately gave an error, probably because of some sort of checksum or model code built into the firmware file.

    I was able to retrieve some info from the camera by using the CameraVersion tool:

    camera: Unknown (0x2800000) version 100 D

    Canon Firmware Version: Firmware Version 1.00
    Canon Model Id: Unknown (0x2800000)
    Firmware Revision: 1.00 rev 4.00

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    Offline reyalp

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    Re: powershot a495
    « Reply #1 on: 01 / April / 2010, 21:22:27 »
    CHDK for a different camera (e.g. a480 on a495) will never work, even if they are very similar. Different firmware versions of the same camera frequently need their own ports.

    a495 is a new camera, so it is expected that existing udumper will not work. Dumping will require either a modified udumper or using the blinking method.
    Don't forget what the H stands for.

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    Re: powershot a495
    « Reply #2 on: 05 / April / 2010, 23:22:31 »
    Thanks. I'll probably try the blinking method. It seems easier.

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    Re: powershot a495
    « Reply #3 on: 05 / April / 2010, 23:27:50 »
    I'm hoping that the blinker method can go through the AF assist light. The standard LED is probably too tiny to be picked up by my cheap sensor.


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    Re: powershot a495
    « Reply #4 on: 07 / April / 2010, 02:12:31 »
    I finally found the blinker code after running around forever. The wiki is one massive jumble. So I tried to compile the LED address scanner. It comes up with a 1.5K file called main. I'm not sure what I'm supposed to be doing from this point.

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    Re: powershot a495
    « Reply #5 on: 14 / April / 2010, 15:08:45 »
    bump.

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    Offline reyalp

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    Re: powershot a495
    « Reply #6 on: 14 / April / 2010, 22:02:40 »
    I finally found the blinker code after running around forever. The wiki is one massive jumble. So I tried to compile the LED address scanner. It comes up with a 1.5K file called main. I'm not sure what I'm supposed to be doing from this point.
    It would help if you linked to the specific thing you were trying to use.
    Don't forget what the H stands for.

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    Offline asm1989

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    Re: powershot a495
    « Reply #7 on: 15 / May / 2010, 04:47:36 »
    pcdude2143 , whats your status on the blinking?


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    Re: powershot a495
    « Reply #8 on: 27 / May / 2010, 20:31:40 »
    I actually haven't gotten to it yet. I'm not really sure what I should be doing next.

     

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