PowerShot SX220 HS - Porting Thread - page 4 - General Discussion and Assistance - CHDK Forum
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PowerShot SX220 HS - Porting Thread

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Offline funnel

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Re: PowerShot SX220 & SX230 HS - Porting Thread
« Reply #30 on: 26 / April / 2011, 15:33:22 »
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Quote from: funnel on 25 / April / 2011, 09:10:05
The resolution is 4168x3060.

I managed to convert the CRW file but all I get is this.


EDIT: resolution

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Offline michi1911

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Re: PowerShot SX220 & SX230 HS - Porting Thread
« Reply #31 on: 26 / April / 2011, 17:50:19 »
Quote from: whim on 17 / April / 2011, 09:23:45
@funnel

Congratulations !

Quote
The camera uses a new set of dancing bits located at FF43BEE0 -> {0,4,2,7,3,6,5,1}

confirmed for ixus220hs (at FFC0E414) - this cam also uses DryOS 2.3 release #0047
(but dumped with unmodified Cbasic dumper @FF810000 !)

wim

PS Had to limit IDA 5.2 Pro to load only FF0000 of the FFFFFC bytes in your dump,
     or CHDK.idc would choke on it ...

Hi,
greetings from Munich/Germany.

I ordered an IXUS220HS today for my microcopter project and respectively I'm pretty interested in a CHDK port for this model.

Happily I read, that you have a look at the ixus220hs firmware too :) Am I right?

I appreciate that, so that I can contribute sooner or later to a port to this model regarding to your experience if nobody more experienced in CHDK does the job.

Meanwhile I try to monitor your activities on the powershot220hs to learn about the CHDK project.

As soon as I get my IXUS, I will dump the firmware, so that it can be added to the archive.
As far as I understand, for the IXUS the standard dump range is valid!?

...have fun...

Michi
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Offline funnel

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Re: PowerShot SX220 & SX230 HS - Porting Thread
« Reply #32 on: 27 / April / 2011, 02:53:23 »
Success. I got some basic funcionality working. Still no RAW support but overrides are working. I successfully did a 101 second exposure. I also fixed the keybord problem, some wrong numbers in the keymap.

I uploaded the binaries if someone is willing to test. Use at your own risk. To access the ALT menu use DISP+SET button.


@michi1911

IXUS220HS and ELPH300 are the same cameras. The firmware dump is already uploaded.
« Last Edit: 27 / April / 2011, 03:38:13 by funnel »
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Offline michi1911

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Re: PowerShot SX220 & SX230 HS - Porting Thread
« Reply #33 on: 27 / April / 2011, 15:30:33 »
Quote from: funnel on 27 / April / 2011, 02:53:23
IXUS220HS and ELPH300 are the same cameras. The firmware dump is already uploaded.

Yes, thanx!

I discovered that too.

Let's see if the german version is the same!?

...have fun...

Michi
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Offline funnel

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Re: PowerShot SX220 & SX230 HS - Porting Thread
« Reply #34 on: 28 / April / 2011, 18:35:27 »
Yes. I finally found the RAW buffer address. It was 0x46000000 in a strange location with the string "DoCaptureDarkSub executed." Buffer is at the same location as in the S95.
« Last Edit: 28 / April / 2011, 18:48:38 by funnel »
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Offline funnel

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Re: PowerShot SX220 & SX230 HS - Porting Thread
« Reply #35 on: 30 / April / 2011, 17:43:21 »
Found the FI2 keys:

FI2KEY @FFFF3610
FI2IV @FF49B4CC


But the camera crashes when loading firmware update starts.
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Offline funnel

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Re: PowerShot SX220 & SX230 HS - Porting Thread
« Reply #36 on: 01 / May / 2011, 05:46:51 »
I compiled a new one for testing. Still a lot to do but the basics are working.

What I tested until now:

working:
- RAW files but no DNG support for now.
- Scripts
- Remote
- Shutter speed override
- Partially manual focus in video. Works only when slow zoom pressed.
- TV bracketing works
- ISO bracketing partially - when set at iso 500 works.

Not working:
- ISO overrides. When in Auto ISO not working at all, when in manual ISO -> iso 100 is at iso 810 and iso 800 is at iso 1610.
- AV overrides.
- AV bracketing.
- Create badpixel.bin







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Offline tontomele

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Re: PowerShot SX220 & SX230 HS - Porting Thread
« Reply #37 on: 01 / May / 2011, 09:20:20 »
You can open the files CRW?

Txh..
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Offline Bernd R

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Re: PowerShot SX220 & SX230 HS - Porting Thread
« Reply #38 on: 02 / May / 2011, 06:28:54 »
Quote from: funnel on 30 / April / 2011, 17:43:21
Found the FI2 keys:

But the camera crashes when loading firmware update starts.

do you get a romlog output ?

If its a fsionotify error you need activate the boot fixes

>Yes. I finally found the RAW buffer address. It was 0x46000000 in a strange location with the string >"DoCaptureDarkSub executed." Buffer is at the same location as in the S95.

thats only the second buffer.this camera have 2 buffers and you need find the address that show which buffer is capture.this values are diffrent.maybe you take a look on Ixus 1000 source too, here stand comments how to find the address.

but for a quick test its good enough.you can shoot 2 images in series mode and at least 1 image should look correct

>- ISO overrides. When in Auto ISO not working at all, when in manual ISO -> iso 100 is at iso 810 and iso 800 is at iso >1610.
>- AV overrides.

the code for iso overwrite does not work with newer cam.here is a solution that work on Ixus 1000

http://chdk.setepontos.com/index.php?topic=5574.msg61888#msg61888

« Last Edit: 02 / May / 2011, 06:34:52 by Bernd R »
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Ixus 1000 HS
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Offline funnel

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Re: PowerShot SX220 & SX230 HS - Porting Thread
« Reply #39 on: 02 / May / 2011, 15:59:24 »
Thank you Bernd R. I'll have a look into that.

I solved the FI2 problem and CHDK now starts from the firmware update. The problem was in some commented out code in boot.c that caused crashes at the beginning of my porting.

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