Magic Lantern Forum

Hello
  I guess u been ask too many times this same question.  I want to write a script so if Magic Lantern crashed (rarely happen). I want to have the script do some cleanup so I can reboot camera. Yes I crashed it so hard the camera locked up even canon menu. Somehow the ML, booted in safe mode, but was slow.
Is it possible for a script to do this?
thanks

If the camera is locked, there's not much you can do. If you find a way to take the battery out from a script, that would be something :D

A better option is to find a way to reproduce the crash and file a bug report.

Hope people don't mind that this Lua newbie is re-opening a stale thread to document my baby-steps to get a script to launch

The content of the OP was about attempting to use a Lua script to recover from a bricked camera. Probably not going to happen.

However, to address the question in just the Subject: How do you write a script? ...
Following are a series of simplified baby-steps to modify the existing hello.lua script.

The steps worked for me with a Canon 6d, a 5dm2, and Windows-10 computer. It may or may not work the same for other cameras and platforms:

• Find ML/scripts directory in the unzipped directory
• Copy hello.lua to hi_noob.lua
• Edit hi_noob.lua and change 6th line
  print "Hello, World!"
  to
  print "Hi noob launched. Good job!"
• Change 14th line
  name  = "Hello, World!"
  to
  name = "Hi noob (press SET here)"
• Save file
• Copy hi_noob.lua to the camera's flash card and put back in camera
• Start the camera.
  Observe the camera's LCD console and check that hi_noob.lua successfully loaded.
• If it hasn't already been done, activate the lua module and re-start the camera.
  Then confirm that the lua module has OK next to it.
• Navigate to the MagicLantern menu tab for Scripts (currently two tabs to the left of the Modules tab on my 6d.)
• Navigate down to select the newly added hi_test which will be identified as "Hi noob (press SET here)"
• Push the SET button to launch.
• Drum roll ....
  Did the expected text string with Good job! show up on the camera's LCD console?
• Press any key to finish the script and return to 'the real world'.
• If it works, save the hi_noob.lua some place to preclude it getting over-written at your next upgrade.

The are possibly omissions, unnecessary steps, typos, errors, misconceptions, etc. on my part. Assistance appreciated to clean up.