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Set wathcdog activity. This procedure set a 32-bit timer that can be used to implement a software watchdog function.
A software watchdog can improve system reliability by generating an event to the processor core if the watchdog expires before being updated by software. Typically, the watchdog timer is used to supervise stability of the system software.
When used in this way, software reloads the watchdog timer in a regular manner so that the downward counting timer never expires (neverbecomes 0).
An expiring timer then indicates that system software might be out of control.
At this point a special error handler may recover the system.
For safety, however, it is often better to reset and reboot the system directly by hardware control.
- Parameters:
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count | Watchdog Count (10ns step). |
- See also:
- Set_WatchDogTimerEnable
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