Canon DSLR freezes R-Pi - by: mlarsson

Hi!

I'm experienceing a new strange problem here. Quite suddenly, after having taken hundreds of flats during the day, the Canon 350D starts having problems. I connect, it and take a picture, and get the message "WARNING: Could not wait for event." in the log window. After this the R-Pi freezes and I have to unplug and reboot it. I first believed this had to do with power failures, so I exchange the power connectors. And then switched USB cable, But it doesn't help. Problem seems to be intermittent, though. It was there, then disappeared and then returned when I was going to start on a long series of imaging.... Attached is a gphoto indi log from when the error happened.

Edit: I found out that the log file was quite empty. The log in the INdi console says:

2017-02-14T20:51:20: WARNING: Could not wait for event.
2017-02-14T20:51:19: WARNING: Could not wait for event.
2017-02-14T20:51:14: Exposure complete
2017-02-14T20:51:14: Reading exposure...
2017-02-14T20:51:14: Closing shutter
2017-02-14T20:51:14: Time left: 0
2017-02-14T20:51:13: Time left: 1000
2017-02-14T20:51:13: Starting 1 sec exposure
2017-02-14T20:51:13: Exposure started
2017-02-14T20:51:13: Opening remote serial shutter port: /dev/shutter ...
2017-02-14T20:51:13: Using predefined exposure time: 1 seconds
2017-02-14T20:51:13: Setting new configuration OK.
2017-02-14T20:51:13: Setting radio/menu widget shutterspeed: 16 (1)
2017-02-14T20:51:13: Best match: 1 seconds Index: 16
2017-02-14T20:51:13: Finding optimal exposure setting for 1 seconds...
2017-02-14T20:51:13: Using camera predefined exposure ranges.
2017-02-14T20:51:13: Setting new configuration OK.
2017-02-14T20:51:13: Setting radio/menu widget imageformat: 0 (RAW)
2017-02-14T20:51:13: Setting new configuration OK.
2017-02-14T20:51:13: Setting radio/menu widget iso: 13 (1600)
2017-02-14T20:51:13: Mutex locked
2017-02-14T20:51:13: Starting exposure (exptime: 1 secs, mirror lock: 0)
2017-02-14T20:50:14: Session log file /home/pi/.indi/logs/2017-02-14/indi_gphoto_ccd/indi_gphoto_ccd_20:50:02.log
2017-02-14T20:50:14: Toggle Logging Level -- Driver Debug
2017-02-14T20:50:13: Toggle Debug Level -- Driver Debug
2017-02-14T20:50:10: Debug is enabled.
2017-02-14T20:50:07: Device configuration applied.
2017-02-14T20:50:07: Loading device configuration...
2017-02-14T20:50:07: Detected Canon EOS 350D DIGITAL Model Canon EOS 350D DIGITAL.
2017-02-14T20:50:07: Canon DSLR is online.

Any assistance very warmly welcome - this effectively stops me from imaging.

Magnus