Opticon OPN 2002 v35412 Batch demo Quick Guide - Manual (Page 11)

11
Trouble shooting
Since the OPN200x doesn't have a display, it also doesn't have a system menu
to resort to when you've installed a crashing application that prevents you from
loading new software on the OPN200x.
For this reason the OPN200x has a few escape mechanisms to allow you to
restart, halt your application and/or install new software. This can be very useful
in case the OPN200x has crashed or is constantly restarting due to a crashing
application.
Restart mechanisms
Automatic
The OPN200x has a watchdog timer to determine whether the OS is
still running or has crashed. This watchdog will cause the OPN200x
to restart after 3 seconds if the OS has crashed. This watchdog timer
will not cause a restart when only the application has crashed.
Manually
The OPN200x has a manual restart mechanism that allows you to
restart in situations that the OS is still running, but your the
application has crashed. In order to activate this mechanism, press
and hold the trigger or delete key for at least 20 seconds. After the
OPN200x has sounded the restart beep, you can release the key to
complete the restart.
Halting your application
Firstly, make sure your battery isn't empty and your mini-USB cable is not
connected to the OPN200x.
Then restart your application using one of the two restart methods listed
above, while keeping the trigger key pressed.
While keeping the trigger key pressed, insert the mini-USB cable into the
OPN200x to halt the application.
If successful, the LED of your OPN200x should now be blinking orange. You
should now be able to load new application or OS software.
Halting the Operating System (only necessary in case a corrupt OS is
installed)
Firstly, make sure your battery isn't empty and your mini-USB cable is not
connected to the OPN200x.
Then restart your application using one of the 2 methods listed above, while
keeping the delete key pressed.
While keeping the delete key pressed, insert the mini-USB cable into the
OPN200x to halt the Operating system.
If successful, the LED of your OPN200x should now be blinking red. You should
now be able to load a new OS.