S95 Porting Thread

philmoz

Below should be the firmware addresses for some of the missing functions in the S95 ports for 1.00e and 1.00h.
I haven't tested these as I don't have an S95; but the code at these addresses matches the G12 firmware.

1.00e
=====
strrchr 0xFF8140D8
srand 0xFFA4FEA4
rand 0xFFA4FEB0

1.00h
=====
strrchr 0xFF8140D8
srand 0xFFA4FEB0
rand 0xFFA4FEBC

This should allow the custom versions of these functions to be removed in platform/generic/wrappers.c and platform/s95/wrappers.c

Phil.

whim

Thanks Phil,

Will try'em out !

wim

Pavel-chemist

Hi guys, first, many thanks for chdk.
I have noticed some bug in version for s95:
function "dark frame substruction [on\off\auto]" in folder "raw operations" seems doesn't work 🙁
when long exposition camera always waits for some time for acquiring dark frame no matter what mode I choose.
btw, this function worked well in chdk versions for a590is and a3000is...

matth

Hi,

I'm looking for the memory location of the ExpCtrlTool_StopContiAE function in the 100h firmware for the S95.

The location of the related ExpCtrlTool_StartContiAE function is already defined [1], but the not the ExpCtrlTool_StopContiAE function.

The ExpCtrlTool_StopContiAE function is also defined for the S90 [2], for firmware 101c.

How would I go about finding this memory location? Is it a case of comparing the firmware from the S90 and the S95?

If so, how would a noob go about doing this? Can you recommend a disassembler? (I'm on Mac OS X 10.6.7).

Background: I'm looking for values to plug into a video exposure control script [3], to be able to set the shutter speed in movie mode, to control motion blur.

Thanks in advance for any advice.

-Matt

[1] http://tools.assembla.com/chdk/browser/trunk/platform/s95/sub/100h/stubs_entry_2.S (line 92 in rev 1059)
[2] http://tools.assembla.com/chdk/browser/trunk/platform/s90/sub/101c/stubs_entry_2.S
[3] https://chdk.setepontos.com/d/6113

cppasm

matth
Background: I'm looking for values to plug into a video exposure control script [3], to be able to set the shutter speed in movie mode, to control motion blur.

It's a nonsence.
There is no such thing as shutter speed in video mode.
The shutter is always open while recording video.

reyalp

cppasm
It's a nonsence.
There is no such thing as shutter speed in video mode.
The shutter is always open while recording video.

Mechanical shutter is open. There is still electronic control of exposure time.

matth

@cppasm: As @reyalp pointed out, I'm talking about the exposure time for each video frame. "Shutter speed" is still the commonly used term for this in the context of video.

This tutorial video on Vimeo explains the effect of changing shutter speeds in the context of film, contrasting it with framerate: http://vimeo.com/19603537

matth

reyalp found the ExpCtrlTool_StopContiAE function at FF8474E4, for both the 100e and the 100h firmware.

I'll field test this with the video exposure control script mentioned above, and post any findings.

emutier

matth
reyalp found the ExpCtrlTool_StopContiAE function at FF8474E4, for both the 100e and the 100h firmware.

I'll field test this with the video exposure control script mentioned above, and post any findings.

If you need any testing of any script that might work for setting shutter speed etc. for video - I'm here 😉
rly looking forward to your success

ps: did you check https://chdk.setepontos.com/d/5295/3 ?

BryantFC

Hello everyone!

new here and i'm very anxious to try this out on my new S95 but i'm having a bit of a issue with it. I'm assuming that none of the beta versions are the same one as my firmware on my camera? is there anyway to bypass this? my firmware is

GM1.00I (1.0.0.0)

Build March 2011.

if anyone could help, it would be greatly appreciated!

zeno

It's worth trying each of the current builds (1.00e and 1.00h), it's possible one of them might work and it won't do any harm to try (the camera will just hang).

If that doesn't work, then the first step is to get a dump of your firmware - and since you have the camera, you're the ideal person to get it! You need to use the Canon Basic Dumper script - see http://chdk.wikia.com/wiki/Canon_Basic/Scripts/Dumper

BryantFC

zeno
It's worth trying each of the current builds (1.00e and 1.00h), it's possible one of them might work and it won't do any harm to try (the camera will just hang).

If that doesn't work, then the first step is to get a dump of your firmware - and since you have the camera, you're the ideal person to get it! You need to use the Canon Basic Dumper script - see http://chdk.wikia.com/wiki/Canon_Basic/Scripts/Dumper

I tried both builds and when i try to "manually" update the firmware, the camera just hangs (screen goes black, buttons are not responsive). When i lock the SD card, same thing happens. All done with cardtricks. Not sure on how to dump the firmware? Could you point me in the best direction possible to this?

waterwingz

BryantFC
Not sure on how to dump the firmware? Could you point me in the best direction possible to this?

zeno
If that doesn't work, then the first step is to get a dump of your firmware - and since you have the camera, you're the ideal person to get it! You need to use the Canon Basic Dumper script - see http://chdk.wikia.com/wiki/Canon_Basic/Scripts/Dumper

BryantFC

waterwingz

BryantFC
Not sure on how to dump the firmware? Could you point me in the best direction possible to this?

zeno
If that doesn't work, then the first step is to get a dump of your firmware - and since you have the camera, you're the ideal person to get it! You need to use the Canon Basic Dumper script - see http://chdk.wikia.com/wiki/Canon_Basic/Scripts/Dumper

Sorry, I honestly can't comprehend on how to do this. Using cardtricks and trying DryOS and VxWorks does nothing for me. When i click "strings" nothing shows loaded and when i go to clean, it says i have no valid data. I guess i'm not too savvy for this one 🙁.

waterwingz

BryantFC
Sorry, I honestly can't comprehend on how to do this. Using cardtricks and trying DryOS and VxWorks does nothing for me. When i click "strings" nothing shows loaded and when i go to clean, it says i have no valid data. I guess i'm not too savvy for this one 🙁.

What size memory card are you using ? Once you get to 4G and beyond, the file system changes and I have not had much success with card tricks etc either.

Do you have / can you get a 1G or 2G memory card ?

nvioli

Hi all,
I also just got a new S95 (with the 1.00I firmware) and am also psyched to see what CHDK can do on it.

I dumped the firmware for you all, and added it to the wiki. Here's the zShare link:

PRIMARY.BIN - 7.94MB

I haven't tried the 1.00e or 1.00h betas yet, I'll do that next and let you know if I have any luck. I'll be watching this space to see if any progress is made on a version for this firmware.

BryantFC

waterwingz

BryantFC
Sorry, I honestly can't comprehend on how to do this. Using cardtricks and trying DryOS and VxWorks does nothing for me. When i click "strings" nothing shows loaded and when i go to clean, it says i have no valid data. I guess i'm not too savvy for this one 🙁.

What size memory card are you using ? Once you get to 4G and beyond, the file system changes and I have not had much success with card tricks etc either.

Do you have / can you get a 1G or 2G memory card ?

I first tried a 4G and then tried a 2G, had no success on either of them. Maybe i'm doing something wrong, not sure, but it's not working for me.

nvioli
Hi all,
I also just got a new S95 (with the 1.00I firmware) and am also psyched to see what CHDK can do on it.

I dumped the firmware for you all, and added it to the wiki. Here's the zShare link:

PRIMARY.BIN - 7.94MB

I haven't tried the 1.00e or 1.00h betas yet, I'll do that next and let you know if I have any luck. I'll be watching this space to see if any progress is made on a version for this firmware.

Thanks Nvioli!

hopefully we can get this rolling and join in on the fun!

nvioli

Ok, I can verify that the 1.00e and 1.00h versions don't work. Using the 1.00h version I get a black screen with the message "Change the battery pack" and with the 1.00e version I just get the black screen. I'm not using the bootable method if that matters.

Please let me know if there's anything else I can test or pull off the camera to help.

By the way, going back to what I did to pull the firmware, was I supposed to do anything to undo the step where I wrote "SCRIPT" to the card's boot sector? What was written in those places to begin with?

reyalp

You don't need to remove the "SCRIPT" string, it's in a non-essential place (I don't remember off what is there, DOS bootloader maybe ?)

If you do want to remove it, formatting the card will do the trick.

Interesting you got an error message on 100h, it must be very close. Usually if it boots at all, you don't need a new port, but this sounds like an exception.

nvioli

One more thing I forgot to mention: the script's log (CBDUMPER.LOG) read:

Started
FF810000 dry
done

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