[ECOS] Watchdog

Gary Thomas gary@mlbassoc.com
Fri Dec 17 13:05:00 GMT 2004


Wayne Gemmell said:
> Hi all
>
> The way I understand it the watchdog needs to be reset every >2.5 seconds or
> the hardware gets reset.

This is hardware/platform dependent, but in general, this is how watchdogs work.

>
> Would the best way to implement this be to spread resets all over the program
> or to run a high priority thread that runs reset at the designated interval?

A high priority thread would do, or possibly a separate high priority timer
and service the watchdog in the ISR.

It's probably better to isolate the watchdog service to one location rather
than messing about all over the place.


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