Wdog refreshing delay

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Wdog refreshing delay

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ahmedhrabi
Contributor III

Hi all, 

I'am using the wdog in a K64 without window mode. The problem is when i try to refresh the wdog before a delay of (WDOG_config.timeoutValue >> 3U), like it is done in the SDK example project, the chip don't take into account the refresh and reset the chip. 

This delay is too long, for a Wdg timeout of 500 ms per example we have a delay of 500 ms >> 3U = 62 ms to wait before refreshing again !!

I notice that after initiating the Wdg, i respect the WCT delay before the first refresh. 

This issue is already known, but there's no explications : 

https://community.nxp.com/t5/MCUXpresso-SDK/MK66FX-WDOG-do-not-work/m-p/1204817/highlight/false#M294...

 

Regards. 

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Robin_Shen
NXP TechSupport
NXP TechSupport

Hi ahmedhrabi,

I don't think you have to wait this delay. It's just show you refresh WDOG 10 times every (config.timeoutValue >> 3U) delay.

Best Regards,
Robin

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Robin_Shen
NXP TechSupport
NXP TechSupport

Hi ahmedhrabi,

I don't think you have to wait this delay. It's just show you refresh WDOG 10 times every (config.timeoutValue >> 3U) delay.

Best Regards,
Robin

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