SD940 (IXUS120) porting thread

waterwingz

12139

bricked camera - solved

« Reply #120 on: 22 / December / 2010, 12:18:32 »

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Quote from: c10ud on 22 / December / 2010, 12:15:12

i sometimes had that message while messing up with zooming and some random camera, but it automagically fixed itself rebooting the camera without injecting code. maybe you have some code that's calling bad firmware addresses?

That message should normally comes up only when the lens is jammed (dirt, misshandling etc). In this case, all I did was swap in and out the SD card. Lens is fine. Whatever got toasted, it generates the error with a normal SD card - no CHDK.

As it boots CHDK, I wonder if its possible to hook the SD940 "reset to factory default" code (on the assumption that its a system paramet that's locked up somewhere maybe and not the firmware itself toasted ?)

Update : after reading this http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html I worked my way down to "Fix 6". Worked ! Strange though - must have slightly jammed something reseting CHDK with the lens extended.

« Last Edit: 22 / December / 2010, 12:38:56 by waterwingz »

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Ported : A1200 SD940 G10 Powershot N G16

waterwingz

12139

Re: SD940 (IXUS120) porting thread - crashing on RAW fixed

« Reply #121 on: 22 / December / 2010, 14:30:14 »

Problem with camera shutting down when writing RAW now fixed. The stubs_entry_2.S value for SetFileTimeStamp was incorrect. Should be FF835640 for both the 102c and 103c firmware releases.

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Ported : A1200 SD940 G10 Powershot N G16

brakar

12

Re: SD940 (IXUS120) porting thread

« Reply #122 on: 22 / December / 2010, 19:16:07 »

Hi, I had no luck so far in starting chdk v 1.02C with the card write protection option. (The camera gives a "memory card is write-protected" error). I fear it is me who have failed to follow some basic instructions, since I have not found any description of how to install and run chdk this way so far. (I just copied the two files in the zip. onto the memory-card). A link to the proper instructions would be nice.

brakar

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waterwingz

12139

Re: SD940 (IXUS120) porting thread

« Reply #123 on: 22 / December / 2010, 19:33:18 »

Quote from: brakar on 22 / December / 2010, 19:16:07

A link to the proper instructions would be nice.

http://chdk.wikia.com/wiki/CHDK_for_Dummies Look 1/3 of the way down for the section called "Load CHDK onto the card"

Or http://chdk.wikia.com/wiki/CHDK_For_Newbies_-_How_To_Install

Basically, it sounds like you skipped the steps where you make your card bootable.

« Last Edit: 22 / December / 2010, 19:38:35 by waterwingz »

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Ported : A1200 SD940 G10 Powershot N G16

brakar

12

Re: SD940 (IXUS120) porting thread

« Reply #124 on: 22 / December / 2010, 19:48:56 »

Thanks, The "for dummies"-paper seemes to be exactly what I have been looking for. Will try it out tomorrow.

brakar

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waterwingz

12139

Re: SD940 (IXUS120) porting thread

« Reply #125 on: 22 / December / 2010, 20:09:07 »

Quote from: brakar on 22 / December / 2010, 19:48:56

Thanks, The "for dummies"-paper seemes to be exactly what I have been looking for. Will try it out tomorrow.

No offense intended - at least not from me. I won't ever tell how long it took me to get things running the first time (or how much time this has taken since).

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Ported : A1200 SD940 G10 Powershot N G16

waterwingz

12139

Re: SD940 (IXUS120) porting thread

« Reply #126 on: 22 / December / 2010, 20:28:58 »

Source for Beta 1 supporting fw 1.02c, 1.03b and 1.03c posted at
http://www.zshare.net/download/84239780bab48ed0/

1.03b firmware not ported yet but I put in a placeholder hoping that RoninTech succeeds with his port.

UPDATE : posted 1.03c http://www.zshare.net/download/84241756930bb65b/ build based on latest source - the stuff where RAW now longer crashes the camera

« Last Edit: 22 / December / 2010, 21:30:06 by waterwingz »

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Ported : A1200 SD940 G10 Powershot N G16

tomsturge

5

Re: SD940 (IXUS120) porting thread

« Reply #127 on: 23 / December / 2010, 08:56:23 »

Really interested in putting this on my camera, how far along is the hack? Is it safe to use without much loss of CHDK functionality?

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waterwingz

12139

Re: SD940 (IXUS120) porting thread

« Reply #128 on: 23 / December / 2010, 09:16:30 »

Quote from: tomsturge on 23 / December / 2010, 08:56:23

Really interested in putting this on my camera, how far along is the hack?

For the two firmware version ported so far, all the coding and porting work is complete. In theory, everything should work but with only a little testing so far we do not have a good understanding of what does and what does not function as required. Your volunteer work helping to test would be most appreciated.

Quote from: tomsturge on 23 / December / 2010, 08:56:23

Is it safe to use without much loss of CHDK functionality?

From the wiki : http://chdk.wikia.com/wiki/FAQ#Q._Can_CHDK_damage_your_camera.C2.A0.3F

Q. Can CHDK damage your camera ?

Short answer: Yes. It is unlikely, but theoretically possible. As stated above CHDK comes with no warranty for any use; you use it at your own risk. CHDK is created by reverse engineering an undocumented system that directly controls hardware. Because of this, it is impossible to be certain that it is completely safe. There have been no confirmed cases of CHDK damaging a camera, but in some cases it would be very difficult to distinguish between coincidental failures and failures caused in part by CHDK.

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Ported : A1200 SD940 G10 Powershot N G16

brakar

12

Re: SD940 (IXUS120) porting thread

« Reply #129 on: 23 / December / 2010, 14:40:22 »

I have now installed the new version (Beta 1) on a fresh formatted 2GB SD card, using CardTricks, but CHDK will still not run on the camera (firmware 1.02c). The camera gives a "write proctected card" warning when write prot. is on, and nothing happens when writeprot. is off and I try to start chdk the manual way.

Any ideas for what I could try?

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