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Canon IXUS 900 Ti / Powershot SD900 1.00C Port

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Offline fe50

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Re: Canon IXUS 900 Ti / Powershot SD900 1.00C Port
« Reply #220 on: 21 / August / 2010, 04:58:14 »
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I did try a file with just 0000 called it badpixel.bin and the badpixel.bin from my SD990,  the 990 file did load but the DNG file created was corrupt (colored diagonal lines) the notepad created file did not load
You could try to create the badpixel.bin file from a RAW image with the show_bad_b.exe tool (read http://chdk.wikia.com/wiki/Badpixel_removal for more information about it).

To create a "dummy" badpixel.bin file, use a hex editor (e.g. the great & free HxD Hex Editor from http://mh-nexus.de/en/downloads.php?product=HxD) and create a file only containing 00 00 (ASCII code 0), NOT with ASCII char "0" (ASCII code 38)...

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Offline pixeldoc2000

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Re: Canon IXUS 900 Ti / Powershot SD900 1.00C Port
« Reply #221 on: 26 / August / 2010, 14:08:03 »
I've uploaded current source to git://github.com/pixeldoc2000/chdk.git (readonly).
Branch: ixus900_sd900 .

So get it while it's hot  ;).

Currently i'm focused on my IXUS 300 / SD4000 Port.

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Offline pixeldoc2000

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Re: Canon IXUS 900 Ti / Powershot SD900 1.00C Port
« Reply #222 on: 11 / September / 2010, 17:38:14 »
Sad story...

My SD900 does suffert vom E19 Lens Error. The Lens always get stuck after it extends... Even after disassembling, lubricate and more this does not change...

After some hours working on this thing, i broke one of the brown flex cables...

Now it looks like this...  :-[

Code: [Select]
http://pixeldoc.kicks-[admin: avoid swearing please].net/projects/chdk/ixus900_sd900/canon_ixus900_sd900_pile.jpg^ dawn, this filter does not like my domain.... replace "[admin: avoid swearing please]" with your "bottom" (a s s)

Code: [Select]
http://pixeldoc.kicks-a s s.net/projects/chdk/ixus900_sd900/canon_ixus900_sd900_pile.jpg
Sorry, i can't link it here...  >:(

I'll try to fix the camera to be able to continue development on chdk...
« Last Edit: 11 / September / 2010, 17:54:43 by pixeldoc2000 »

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Offline pixeldoc2000

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Re: Canon IXUS 900 Ti / Powershot SD900 1.00C Port
« Reply #223 on: 11 / September / 2010, 17:47:59 »
BTW, if somebody is interested how SD900 looks inside:
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http://pixeldoc.kicks-a s s.net/gallery/main.php?g2_itemId=17


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Offline reyalp

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Re: Canon IXUS 900 Ti / Powershot SD900 1.00C Port
« Reply #224 on: 11 / September / 2010, 18:18:20 »
:(

Are there any connectors on the circuit boards which were not connected when you started ?
Don't forget what the H stands for.

Re: Canon IXUS 900 Ti / Powershot SD900 1.00C Port
« Reply #225 on: 11 / September / 2010, 18:27:31 »
Sorry to see your camera in that condition ~ Even though I have the SD990 and a DSLR I still use my SD900 often mostly on sailboat races, and get some great images.  I moved back to your march 12 2009 build as the manual focus worked and it was stable just no DNG.  Hope you get it working again it has a great lens and sensor

Hans
It is better to burn a roll of film than curse the darkness Equip, S100 w/CHDK, SD900 w/CHDK, SD990 w/CHDK & Pentax K2000, Pentax Kr
Flickr:

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Offline pixeldoc2000

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Re: Canon IXUS 900 Ti / Powershot SD900 1.00C Port
« Reply #226 on: 11 / September / 2010, 18:56:16 »
Are there any connectors on the circuit boards which were not connected when you started ?
No, i've check for loose connction.

Also i disassembled and reassembled my SD900 about 3-4 time with the same result.

After that, is was annoyed and damaged a flex cable at the sensor at the next disassemble. I'll try to fix it somehow, but than there is still the mechanical issus with lens...

Sorry to see your camera in that condition ~ Even though I have the SD990 and a DSLR I still use my SD900 often mostly on sailboat races, and get some great images.  I moved back to your march 12 2009 build as the manual focus worked and it was stable just no DNG.  Hope you get it working again it has a great lens and sensor
Yes, i really liked the picture from my SD900!
Only issus was the missing IS, otherwise it has a good sensor. Under some conditions pictures where far better than SD4000

Manual focus is broken with last beta?

I'll look for SD900 after my SD4000 port is "done"...
« Last Edit: 11 / September / 2010, 19:00:56 by pixeldoc2000 »

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Offline reyalp

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Re: Canon IXUS 900 Ti / Powershot SD900 1.00C Port
« Reply #227 on: 11 / September / 2010, 19:21:17 »
Are there any connectors on the circuit boards which were not connected when you started ?
No, i've check for loose connction.
No, I mean ones not connected from the factory, e.g. jtag or other diagnostic.

edit:
Not helpful for your problem, just general interest.
Don't forget what the H stands for.


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Offline pixeldoc2000

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Re: Canon IXUS 900 Ti / Powershot SD900 1.00C Port
« Reply #228 on: 11 / September / 2010, 20:10:43 »
Are there any connectors on the circuit boards which were not connected when you started ?
No, i've check for loose connction.
No, I mean ones not connected from the factory, e.g. jtag or other diagnostic.
Actually there is something i noticed about possible JTAG...
There is an array of pads near the digic cpu on the pcb. Have a look a this pictures:
Code: [Select]
http://pixeldoc.kicks-a ss.net/projects/chdk/ixus900_sd900/canon_ixus900_sd900_jtag.jpg
http://pixeldoc.kicks-a ss.net/projects/chdk/ixus900_sd900/canon_ixus900_sd900_jtag2.jpg
Interesting is the pad "line" at the SD-Card Slot (second picture). Maybe canon has a special sd-card fitted with some contact to connect to the pads?

Simular possible jtag pad array at G7 pics (5 pads below digic cpu):

Source: http://qman.fotokala.ee/Kaamerad/PowerShotG7/

I have a http://www.embedded-projects.net/usbprog/ for my AVR stuff. I also have a 5V <> 3,3V level shifter. But i'm not shure how to connect to the jtag.
I've never used jtag before...
« Last Edit: 11 / September / 2010, 20:22:31 by pixeldoc2000 »

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Offline pixeldoc2000

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