Eos 400d ( Rebel XTI ) - page 14 - DSLR Hack development - CHDK Forum
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Eos 400d ( Rebel XTI )

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Offline Lefty

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Re: Eos 400d ( Rebel XTI )
« Reply #130 on: 13 / August / 2009, 13:09:54 »
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Yep there is a bug!

If you take a photo in Manual Mode there is no difference between ISO 1600 and ISO 3200.
In AV Mode the exposure time changes between ISO 1600 and ISO 3200 (this is ok) but the ISO 3200 photo is underexposed.
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Offline denis-cubic

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Re: Eos 400d ( Rebel XTI )
« Reply #131 on: 14 / August / 2009, 16:28:57 »
This is a very good job!
But i can only set iso to 80 not to 16!

And so on where can i activate the other functions? Do you have a readme or infofile. Thanks!
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Offline nikta

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Re: Eos 400d ( Rebel XTI )
« Reply #132 on: 15 / August / 2009, 01:59:54 »
@ denis-cubic-->

set: Shoot without card ON to access low iso speeds
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Offline denis-cubic

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Re: Eos 400d ( Rebel XTI )
« Reply #133 on: 15 / August / 2009, 09:11:24 »
The Picture in ISO 16-80 is the same as in 100 ... no difference!?

Where or how can i access the other new features?
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Offline photogenic

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Re: Eos 400d ( Rebel XTI )
« Reply #134 on: 15 / August / 2009, 11:24:17 »
Hi!
Is it possible to tag images with a number?
I would like to set a number of four digits in the menu, which is saved within the EXIF data of each picture.

This function would be really useful as I could pre-organize my pictures on the fly with numbers.
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Offline gratiz

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Re: Eos 400d ( Rebel XTI )
« Reply #135 on: 16 / August / 2009, 20:07:50 »
can someone tell me where i can grab a dump of the firmware on which this stuff work ?

i would like to port that stuff to the 1000D.

thanks
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Offline thaibv

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  • Canon 400d: Spot, ISO 3200 and more
Re: Eos 400d ( Rebel XTI )
« Reply #136 on: 18 / August / 2009, 11:55:13 »
Hi,

@Lefty, T.B., nikta
sorry for the late, i've just have a vacaction.
yeah, you are right, the last release have a bug.
Pls download the correct one here: http://depositfiles.com/files/jbygql51l

@denis-cubic
Shot many pic at iso 16, 32, 40, 50, 80 but i think it really iso 116, 132, 140, 150, 180 respectively

@photogenic
Really dont understand your question, each pic already have their own unique 4 digit number yet.

@gratiz
1000d is new model, you will lost guarranty if try this
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Offline gratiz

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Re: Eos 400d ( Rebel XTI )
« Reply #137 on: 18 / August / 2009, 17:27:35 »
it doenst modify anything in flash. only in the ram so i dont think it can destroy anything.
i allready wrote a dumper for the firmware. deassembled it and now i want to search for the needed functions
offsets and try some of the first builds.

so maybe someone can help me out with a 400d dump to compare the functions ....
« Last Edit: 18 / August / 2009, 17:29:40 by gratiz »
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Offline thaibv

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  • Canon 400d: Spot, ISO 3200 and more
Re: Eos 400d ( Rebel XTI )
« Reply #138 on: 18 / August / 2009, 19:26:18 »
Quote from: gratiz on 18 / August / 2009, 17:27:35
it doenst modify anything in flash. only in the ram so i dont think it can destroy anything.

The test.fir change boot flags in your cam's cmos rom, so your cam can boot up from card.

Dont know whether 1000d use VxWork or DryOS, pls read other topics.
if it use vxwork, there are alot text string and code for debug. Let search for string ex: ISO, 1600, 800, 400, 200, Av,Tv, A-DEP... or longer: StartUp, FileCounter, FaceSensor, LcdController, GUI Changed.

 
« Last Edit: 18 / August / 2009, 19:33:48 by thaibv »
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Offline gratiz

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Re: Eos 400d ( Rebel XTI )
« Reply #139 on: 18 / August / 2009, 20:56:04 »
the 1000D uses vxworks like the 400D.

strings:
"host:/tornado2.2/target/proj/juno/default/vxWorks"
ROM:FF810008 aCopyright19992 DCB "Copyright 1999-2001 ARM Limited",0xA
ROM:FF810008                 DCB "Copyright 1999-2001 Wind River Systems, Inc."

sig also work fine ;)

and the code also gets loaded to 0x1900 like with the 400D

ROM:FF8100DC                 MOV     R12, SP
ROM:FF8100E0                 STMFD   SP!, {R4,R11,R12,LR,PC}
ROM:FF8100E4                 SUB     R11, R12, #4
ROM:FF8100E8                 MOV     R4, R0
ROM:FF8100EC                 LDR     R3, =0x37840
ROM:FF8100F0                 SUB     R2, R3, #0x1900
ROM:FF8100F4                 MOV     R3, R2,LSR#2 
ROM:FF8100F8                 LDR     R0, =off_FFD51840
ROM:FF8100FC                 MOV     R1, #0x1900
ROM:FF810100                 MOV     R2, R3
ROM:FF810104                 BL      sub_FF81011C
ROM:FF810108                 MOV     R0, R4
ROM:FF81010C                 BL      usrInit
ROM:FF810110                 LDMDB   R11, {R4,R11,SP,PC}


i allready compared the dump with a 1.0.8 400D dump and its near the same. thats why it shouldnt be a big problem to port it to the 1000D.

ROM:FFFF439C aEos_develop    DCB "EOS_DEVELOP",0     ; DATA XREF: sub_FFFF4144+11Co
ROM:FFFF439C                                         ; sub_FFFF4144+138o ...
ROM:FFFF43A8 aBootdisk       DCB "BOOTDISK",0        ; DATA XREF: sub_FFFF4144+12Co
ROM:FFFF43A8                                         ; sub_FFFF4144+148o ...

is also there and ..

ROM:FFFF30B4 aAutoexec_bin   DCB "AUTOEXEC.BIN",0    ; DATA XREF: sub_FFFF3004+48o
ROM:FFFF30B4                                         ; sub_FFFF3004+6Co



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