Nagasaki PC104-688VL, User Manual

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NAGASAKI IPC
47
Watchdog Timer
This section describes how to use the Watchdog Timer, including disabled, enabled,
and trigger functions.
The PC104-688VL is equipped with a programmable time-out period watchdog timer.
You can use your own program to enable the watchdog timer. Once you have
enabled the watchdog timer, the program should trigger the I/O every time before
the timer times out. If your program fails to trigger or disable this timer before it times
out, e.g. because of a system hang-up, it will generate a reset signal to reset the
system. The time-out period can be programmed to be set from 1 to 256 seconds or 1
to 256 minutes.