Installing The Chdk; Requirements; Does A Chdk Exist For My Camera - Canon Camera Hackers Manual

3 Installing the CHDK

3.1

Requirements

Installing the CHDK requires you to prepare the camera's SD card and in-
stall the CHDK onto that card. To do so, you need:
An SD card with no more than 4 GB. Larger cards can be used with the
f
CHDK on some cameras, but some features such as AUTORUN will not
work. Therefore, it is better to stick with cards that have no more than
1
4 GB of memory .
A suitable card reader. Modern notebooks are usually equipped with
f
such a card reader. Alternatively, an external device can be connected to
the USB port. They don't cost an arm and a leg.
Some knowledge of navigating file systems and downloading and in-
f
stalling software.
3.2

Does a CHDK exist for my camera?

Each camera model requires its own build of the CHDK. To be more precise,
each firmware version of the camera's operating system requires its own
CHDK build. So, once you have established that your camera model is sup-
2
ported by the CHDK , you have to find out the firmware version of your
camera.
Normally, your camera does not show this information. It must be en-
abled to do so, and this is done by placing a small file named ver.req (for
version request) into the root directory of the memory card. On Windows
systems, this is easily done by inserting the card into a card reader, down-
loading the program CardTricks (http://chdk.wikia.com/wiki/CardTricks),
and formatting the card as FAT (provided that you use a card with no more
than 4 GB of memory). If you have important content on the card, make
sure to copy it to other media first!
1 A discussion about using memory cards with more than 4 GB is found in
the appendix.
2 The supported camera models are listed at
CHDK.
http://chdk.wikia.com/wiki/
3.1 Requirements
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