Opticon OPN 2002 v35315 Bluetooth demo Quick Guide - Manual (Page 12)

12
Trouble shooting
Since the OPN2002 doesn't have a display, it also doesn't have a system menu to resort to
when a crashing application or OS prevents you from loading new software on the
OPN2002.
For this reason the OPN2002 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 OPN2002
has crashed or is constantly restarting due to a crashing application.
Restart mechanisms
Automatic
The OPN2002 has a watchdog timer to determine whether the OS is still
running or has crashed. This watchdog will cause the OPN2002 to restart after
3 seconds if the OS has crashed. This watchdog timer will not cause a restart
when only the application has crashed.
Since OS version RBGV0220 the software of the OPN2002 is also protected
against electrical static discharges (ESD). If the OPN2002 has stopped
working due to an ESD it will automatically recover within a minute.
Manually
The OPN2002 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 OPN2002 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 OPN2002.
 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 OPN2002 to
halt the application.
If successful, the LED of your OPN2002 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 OPN2002.
 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 OPN2002 to
halt the Operating system.
If successful, the LED of your OPN2002 should now be blinking red. You should now be
able to load a new OS.