A490 Porting - page 4 - DryOS Development - CHDK Forum
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A490 Porting

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Offline patilkedar

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Re: A490 Porting
« Reply #30 on: 19 / July / 2011, 05:54:21 »
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Can anyone confirm if USB remote is working with A490? I am planning a stereo rig hence the question. I promise to help with testing/porting if I buy this camera.

Thanks in advance!

-Kedar
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Offline larryflynt

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Re: A490 Porting
« Reply #31 on: 20 / July / 2011, 18:29:27 »
I can confirm without a shadow of a doubt that the "USB remote" feature is working.
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Offline Microfunguy

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Re: A490 Porting
« Reply #32 on: 23 / July / 2011, 07:43:45 »
Quote from: patilkedar on 19 / July / 2011, 05:54:21
I promise to help with testing/porting if I buy this camera.


Here is an initial build of SDM http://www.zshare.net/download/92911226ccd42d44/

I have a spreadsheet that details a series of stereo tests.
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Offline patilkedar

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Re: A490 Porting
« Reply #33 on: 26 / July / 2011, 17:39:53 »
Thanks larryflynt. And you are my new best friend, microfunguy! Do you have a link to the spreadsheet too?
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Offline patilkedar

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Re: A490 Porting
« Reply #34 on: 30 / July / 2011, 15:16:34 »
I've got a couple of a490s now. I found that they have firmware version 100e by doing the following on Ubuntu.

$ exiftool IMG_0001.JPG -MakerNotes:FirmwareRevision
Firmware Revision               : 1.00 rev 5.00

(As per http://chdk.wikia.com/wiki/CameraVersion#Internals "5.00" means "e".)

So I cannot use the existing chdk build for 100f... :-(

I then tried dumping the firmware by using universal dumper. It dumped all right but my PRIMARY.BIN is not identical to the one by hotvedt. Is this normal?
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Offline waterwingz

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Re: A490 Porting
« Reply #35 on: 30 / July / 2011, 15:26:10 »
Quote from: patilkedar on 30 / July / 2011, 15:16:34
I then tried dumping the firmware by using universal dumper. It dumped all right but my PRIMARY.BIN is not identical to the one by hotvedt. Is this normal?
Yes - there is normally stuff at the end of the dump that changes.
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Offline patilkedar

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Re: A490 Porting
« Reply #36 on: 30 / July / 2011, 16:15:56 »
Quote from: waterwingz on 30 / July / 2011, 15:26:10
Yes - there is normally stuff at the end of the dump that changes.

Something must be wrong then. I saw the diffs quite early in the file, not at the end.
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Offline patilkedar

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Re: A490 Porting
« Reply #37 on: 30 / July / 2011, 16:19:01 »
Quote from: patilkedar on 30 / July / 2011, 16:15:56
Quote from: waterwingz on 30 / July / 2011, 15:26:10
Yes - there is normally stuff at the end of the dump that changes.

Something must be wrong then. I saw the diffs quite early in the file, not at the end.

Spoke too soon. The diffs are indeed near EOF (95% or so). I was reading the diffs incorrectly.
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Offline Microfunguy

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Re: A490 Porting
« Reply #38 on: 30 / July / 2011, 17:07:39 »
Quote from: patilkedar on 26 / July / 2011, 17:39:53
Do you have a link to the spreadsheet too?
Here is one example http://www.zshare.net/download/931555264d1424ed/

Hover the mouse over the triangle in top-right corner of some cells for an explanation.

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Offline e-person

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Re: A490 Porting
« Reply #39 on: 02 / August / 2011, 03:48:42 »
I've got an A490 and I am willing to do testing as long as someone tells me exactly what they want me to test. I do not understand how to use it, I have read manuals but still can't, they usually refer to other cameras with different buttons. All I wanted is RAW files (I have managed to get it to write DNG) and aperture priority (which I haven't managed to set, yet). So far camera is very unreliable, keeps switching itself off, completely unusable. It's not the batteries. Works fine on original firmware, by the way.
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