DTV 720 USER’S MANUAL
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Reset Unit
Screen
Press the ENT key to go to the second-level Reset Unit Entry screen.
Press the ww key to go to the Home screen.
Press the vv key to go back to the IP Setup screen.
Press the ESC key to return to the Home screen.
Second-Level Reset Unit Entry Screen
Press the ENT key to reset the unit and start the boot loader.
Press the ESC key to go back to the Reset Unit screen.
Unit
Shutdown
Simply remove power to the unit to shut down your DTV 720. No special procedure is
required.
3.5 Initialization
Software
Code
Structure
The DTV 720 Processor contains the following unit software: A boot loader and one version
of the operating application software. Before power-up, these components are stored in
non-volatile memory. The boot loader resides in a portion of the memory that may only be
written at the factory while the application is stored in a portion of memory that can be over-
written with down-loads of new software. The boot code has the responsibility of deciding if
the resident application software image should be allowed to execute.
Initialization
Sequence
At power up, the boot loader software executes first. It performs a test of RAM and then
relocates itself for further execution from there. During boot-up, the following screens
appear in sequence on the LCD:
Reset Unit...
Reset Unit...
Press <ENT>
FPCon v001
All front-panel LEDs lights are
OFF during boot process.
Hit key to stop boot
Booting in 2
Booting System
Bootloader Ver 104
Done Booting
Bootloader Ver 104
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