SD900

Powershot SD900 (North America / outside Europe) / IXUS 900 Ti (Europe) / IXY Digital 1000 (Japan)

CHDK is available for the IXUS 900Ti / SD900 with firmware version 1.00C from the download page

Reviews[]

Image Processor:	DIGIC III
Image Sensor:	10 MP, 10.40 million effective pixels, 1/1.8-inch CCD type
OS:	VxWorks operating system v5.5
Lens:	3x optical zoom, 7.7-23.1 mm, F/2.8 - F/4.9 (35mm film equivalent: 37-111 mm)
Display:	2.5 inch TFT, 207,000 pixels
Storage:	SD / SDHC / MMC
Power:	NB-5L Lithium-ion rechargeable battery, 230 shots LCD on / 700 shots LCD off / 360 min. playback time (CIPA), optional AC adapter ACK-DC30
Dimensions:	3.59 x 2.35 x 1.11 inch (91.2 x 59.6 x 28.2 mm), Weight: 165g (5.82 oz.) (camera body only)
Release Date:	2006

In order to display version information on the Camera, follow Ver.req

Create two empty files called ver.req and vers.req in the root directory of the SD memory card with a computer.
Insert the card into the camera.
Select camera mode playback.
Switch camera on by pressing ON/OFF.
Press and hold FUNC/SET and press DISP, you will see Firmware info page 1.
Repeat step 5 to see page 2 (available only if you created vers.req at step 1).
Repeat step 5 to see page 3 (available only if you created vers.req at step 1).

Canon PowerShot SD900
P-ID:3115   NT

Firmware Ver GM1.00C
No error
Jul 24 2006   18:57:34

Canon DIGITAL IXUS 900TI
P-ID:3115   PAL

Firmware Ver GM1.00C
No error
Jul 24 2006   18:57:34

Canon DIGITAL IXUS 900TI
P-ID: 3115   PAL

Adj. Vers.006.000

Here you will find some camera statistics like Total Shoot counter.

Canon DIGITAL IXUS 900TI
P-ID: 3115   PAL

Adj. Vers.006.000 
Total Shoot  :9723
Open Shutter :0
Close Shutter:0

Camera is very similar to IXUS850IS / SD800IS.

The firmware can be dumped with CardTricks using VxWorks 1 option, or look at Porting the CHDK (udumper).

firmware dump for fw 1.00C (full 8MB, dumped by pixeldoc with cBasic udumper)

Download location for firmware dumps:
→ P&S firmware dumps mirror

'ROM start address' and 'Loading address' is 0xFF810000 . (Canon A-Series: 0xFFC00000 ; S-, SD-, and G- Series: 0xFF810000)

24-Oct-2010: the SD900 sources are in the official trunk now, the Autobuild Server delivers the latest binaries.
The latest CHDK beta version for the IXUS 900Ti / PowerShot SD900 with fw version 1.00C is available from here: forum link