It’s implied but not made explicit that hal_watchdog_init sets up a re-occuring 
watchdog, not a one time use one (who wants a one time use watchdog….).  This 
should be made explicit though.

Also, it would be nice if the watchdog module could tell you if a recent reset 
was caused by the watchdog.   I could imagine this functionality being in the 
startup module instead however.

*m

Mathew Calmer, R&D Director of Software and Firmware
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> On Aug 29, 2016, at 4:40 PM, marko kiiskila 
> <[email protected]><mailto:[email protected]%3E> wrote:
>
> Hi,
>
> I was going to add support for hardware watchdog(s).
> The API I was thinking would be pretty simple.
>
> The first user for this would be the sanity task.
>
> —8<---
> /*
> * Set the watchdog time to fire no sooner than 'expire_secs' seconds from now.
> */
> int hal_watchdog_init(int expire_secs);
>
> /*
> * Tickles the watchdog. Needs to be done before 'expire_secs' fires.
> */
> int hal_watchdog_tickle(void);
>
> /*
> * Stops the watchdog.
> */
> int hal_watchdog_stop(void);
>
> —8<———
>
> Let me know if this doesn’t seem right.

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