Lanner LEC-7233 Series, Руководство пользователя

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LEC-7233 User Manual
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A watchdog timer is a piece of hardware that can be used to automatically detect system anomalies and
reset the processor in case there are any problems. Generally speaking, a watchdog timer is based on a
counter that counts down from an initial value to zero. The software selects the counter’s initial value and
periodically restarts it. Should the counter reach zero before the software restarts it, the software is
presumed to be malfunctioning
and the processor’s reset signal is asserted. Thus, the processor will be
restarted as if a human operator had cycled the power.
To download sample watchdog code, please refer to our official website at
www.lannerinc.com .
Processor
Watchdog Timer
Reset
Restart
Clock