PowerShot SX220 HS - Porting Thread - page 56 - General Discussion and Assistance - CHDK Forum
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PowerShot SX220 HS - Porting Thread

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Offline msl

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Re: PowerShot SX220 HS - Porting Thread
« Reply #550 on: 23 / September / 2013, 14:47:40 »
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You're right. XnView (portable) also shows the stripes. Thanks for the explanation. I will try your chdkptp test later.

msl
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Offline Microfunguy

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Re: PowerShot SX220 HS - Porting Thread
« Reply #551 on: 10 / October / 2013, 08:18:21 »
I have just tried CHDK on my SX220hs 101b because I wanted to view some flash parameters.

Unfortunately, it crashes the camera.

ROMLOG is attached.

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Offline waterwingz

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Re: PowerShot SX220 HS - Porting Thread
« Reply #552 on: 10 / October / 2013, 09:28:32 »
Quote from: Microfunguy on 10 / October / 2013, 08:18:21
I have just tried CHDK on my SX220hs 101b because I wanted to view some flash parameters. Unfortunately, it crashes the camera. ROMLOG is attached.
Crashed in the spytask.c so it seems to be CHDK code.  Were you by chance accessing invalid memory locations?
« Last Edit: 10 / October / 2013, 09:30:30 by waterwingz »
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Ported :   A1200    SD940   G10    Powershot N    G16
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Offline Microfunguy

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Re: PowerShot SX220 HS - Porting Thread
« Reply #553 on: 10 / October / 2013, 09:32:57 »
The reason I tried CHDK is because I spent all morning trying to discover why the new code I added to SDM crashed the camera.

I was going to display the so-called "shutter count" on booting.

I will not do that, it is far too risky, who knows how many cameras are affected,I will remove the code ?
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Offline waterwingz

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Re: PowerShot SX220 HS - Porting Thread
« Reply #554 on: 10 / October / 2013, 09:38:05 »
Quote from: Microfunguy on 10 / October / 2013, 09:32:57
I was going to display the so-called "shutter count" on booting.
I will not do that, it is far too risky, who knows how many cameras are affected,I will remove the code ?
If CHDK accessing flash parameters was risky,  there would be no CHDK running on any camera.  It might be worth knowing exactly what you are doing - your other thread was devoid of application information as well.
« Last Edit: 10 / October / 2013, 09:53:20 by waterwingz »
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Ported :   A1200    SD940   G10    Powershot N    G16
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Offline Microfunguy

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Re: PowerShot SX220 HS - Porting Thread
« Reply #555 on: 10 / October / 2013, 09:59:09 »
Quote from: waterwingz on 10 / October / 2013, 09:38:05
It might be worth knowing exactly what you are doing

Using CHDK, in the Debug menu I chose the option to display Parameters page zero.

On exiting the menu, the camera crashed.

That is all.

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Offline srsa_4c

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Re: PowerShot SX220 HS - Porting Thread
« Reply #556 on: 10 / October / 2013, 12:56:52 »
Quote from: Microfunguy on 10 / October / 2013, 08:18:21
I have just tried CHDK on my SX220hs 101b because I wanted to view some flash parameters.

Unfortunately, it crashes the camera.
According to stubs_entry.S the address of FlashParamsTable is incorrect for 101b. Correct the address in stubs_min.S, recompile, it should then work. Please report back if it does.
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Offline Microfunguy

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Re: PowerShot SX220 HS - Porting Thread
« Reply #557 on: 10 / October / 2013, 13:22:58 »
Well, I cannot compile CHDK with my toolchain but that fixes the SDM crash so should also fix CHDK.

Nevertheless, I will not add "shutter count" to the splash screen.

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Offline pshotuser

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Re: PowerShot SX220 HS - Porting Thread
« Reply #558 on: 15 / October / 2013, 15:31:58 »
Today i made a burst of three shots (at 1/50s), and i have obtained 3 jpeg and the dng of only the first two. The last one hasn't been saved to the card.
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Offline pshotuser

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Re: PowerShot SX220 HS - Porting Thread
« Reply #559 on: 24 / April / 2014, 05:19:00 »
The problem with the missing jpeg had never happened again.

My camera has been updated to firmware 1.01e (assistance), and now i have troubles with a lot of mostly black dots in the picture (i think badpixels?)

I generated a new badpixels.bin but the result is still full of dots.

Here is a raw (generated with the new badpixel, taken at iso 200):

http://ubuntuone.com/3D8i4jndJjdDtnVVnJkuA1

The new badpixel and the old one:
http://ubuntuone.com/2pGBaAFB4FOY3GEqsqzBlA

http://ubuntuone.com/21wrLZ16MjosemHK7kycFE

Suggestions?

Thank you in advance.
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