Canon CHDK User Manual page 68

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A note on the CCHDK.CFG configuration file. This file, among other things, is where settings the
user has made to the CHDK Overrides, OSD elements, etc. are saved. If this file is corrupted for
whatever reason, it can cause some weird behavior from CHDK camera settings, so to test for this -
find and rename the file so a new one will be created at the next startup, if this eliminates the erratic
behavior the old file can be deleted. Remember though, all your personal settings will be gone. It is
advisable to keep a copy of a known good CCHDK.CFG file from your camera version to use as a
replacement for a corrupted one, and to add it to other SD cards for that camera, to have them ready
with your preferred settings. The file is found at /CHDK/ CCHDK.CFG on the SD card.
CCHDK.CFG can be edited with the application
Exif Makers Notes. For more accurate Exif information than is shown on the OSD for CHDK
overrides, look at the Exif Makers Notes in the extended Exif information of a JPEG image. That will
be the more correct information, not the abbreviated information shown in the normal Exif data.
http://chdk.setepontos.com/index.php/topic,3541.msg33201.html#msg33201
See:
Experimental development is being done on the PTP feature for CHDK cameras, this will provide
computer control of a camera similar to Canon's EOS Utility and Remote Capture, but with CHDK
capability such as remote script control.
As at May 2010 so far the supported cameras are: (for experimental use)
A480-100b, A540-100b, A590-100e, A610-100e and 100f, A650-100d, A710-100a, A720-100c,
SX1-201a, SX10-101a and 102b, SX200-100c, IXUS700 /SD500-101a.
See:-
http://chdk.setepontos.com/index.php/topic,4338.0.html
Endnotes and References
1 SX230HS
http://www.cameralabs.com/reviews/Canon_PowerShot_SX230_HS/verdict.shtml
2 Win1250 – East European Latin , Win1251 – Cyrillic, Win1252 – West European Latin, Win1254 – Turkish ,
Win1257 – Baltic
3 Whenever a script is loaded there is extra demand for available memory, loading the default script when no other
is needed may help camera performance when using CHDK.
4 CHDK-Shell is a handy GUI for developers to easily download, compile and manage the CHDK sources on a
Windows platform., it is written with AutoIt scripting language (easy to customize, the source code is included) by
whim from the CHDK forum.
5 Apple MacOS users - set up Image Capture preferences to open either Image Capture, Canon Camera Window,
or other image management application when a camera is detected.
- available at the CHDK Wiki.
CFGEDIT
(PTP Interface thread at forum)