1 student hands on training i (2009) camera firmware modifications camera firmware modifications
Post on 20-Dec-2015
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-The following instructions will walk you through the steps needed to change the firmware on this camera to take pictures automatically during the flight
Canon A590 IS Mods:
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-The CHDK code was originally written by Rick von Glahn from Edge of Space Sciences (EOSS)
-These steps are performed with the camera modified to turn on and off with a external switch or AVR microcontroller
-The steps to modify the hardware of the camera are contained in a different presentation
Canon A590 IS Mods:
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-This mod uses CHDK to add autonomy to a digital camera without the use of a timing circuit or further modifications to the camera
-CHDK is firmware enhancement
-CHDK = Canon Hack Development Kit
- It only works with Canon digital cameras
-Please see the following website for much more information http://chdk.wikia.com/wiki/CHDK
Canon A590 IS Mods:
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- Set the date and time
- Power off the camera by touching the two wires together again
Canon A590 IS Mods:
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-Press the “MENU” button and format the card – Use the “Low Level Format” setting
Canon A590 IS Mods:
1.1. 2.2.
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Canon A590 IS Mods:
-Press the “MENU” button and format the card – Use the “Low Level Format” setting
3.3. 4.4.
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Canon A590 IS Mods:
-Press the “MENU” button and format the card – Use the “Low Level Format” setting
5.5.
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-The files we are going to copy to the SD card contain a script (macro) that will take pictures throughout the flight after an initial boot up.
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-Press the “MENU” button and press the left on the circle button until the “play” symbol is highlighted
Canon A590 IS Mods:
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- Scroll down to “Make card bootable” and press “FUNC. SET” – Nothing will happen.
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- Select and turn on “Script Autostart” You must press “FUNC. SET” for settings to save
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-Remove the SD card and slide switch to “LOCKED”
Canon A590 IS Mods:
Even though the card is in the “LOCKED” position it will be able to be written to via the CHDK firmware.
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-Power on the camera
- “CU Intervals” and the “<ALT>” should be visible
- Script should be running
Canon A590 IS Mods:
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- It will go through a series of camera setting changes which will take about 60 seconds
-Then the camera will begin to take pictures every 10 seconds for the first 30 minutes (~180 pictures)
-Then the camera will begin to take pictures every 30 seconds for 86 minutes (~172 pictures)
-Then the camera will begin to take pictures every 10 seconds for 15 minutes (~90 pictures)
-Total of ~442 pictures (2GB can hold ~ 566 pictures)
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-You can turn the camera off anytime.
- If you wish to stop the script during execution just press the shutter release button and that will interrupt the execution of the script
-Press the print button to gain control of the camera without having to remove the card
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-After the pushing the shutter, you must push the print button to have normal camera control
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-This is handy if you want to review photos, or do something else without the script running.
-To restart the script push the print button again followed by the print button
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-Remember, any setting you might make to the camera will be restored to factory default settings next time the script runs as that is the first action the script takes
- Once you interrupt a script it must be re-run from the beginning you can not PAUSE a script and RESUME it
Canon A590 IS Mods:
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-You can modify your code without reloading the firmware
-You could modify the timing to get more or less pictures but you should test before flight.
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-Power off camera
-Remove SD Card
-Unlock SD Card
-Open CHDK/Scripts/CU_SGC_Interval.bas
- Scroll down to end of code and change b to 5000
- Save
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- Remove SD card and lock
- Insert SD card into the camera and power on
-You can also “rem” out pieces of the set up or other functions but test first
- You can’t speed things up too much however. Be careful.
Canon A590 IS Mods:
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