AM4372: Watchdog overflow interrupt

Sh.Sasaki

Part Number: AM4372

Hi all,

If WDT overflow interrupt is enabled(WDT_WIER.OVF_IT_ENA =1), will WDT generate interrupt only without overflowing reset operation?

I read TRM, but I did not know if WDT reset would be invalid.

Best regards,

Sasaki

over 7 years ago

0 Biser Gatchev-XID over 7 years ago

TI__Guru**** 393215 points

Hi,

No, reset is always generated on WDT overflow.

0 Sh.Sasaki over 7 years ago in reply to Biser Gatchev-XID

Guru 13625 points

Thank you for your support.

If overflow interrupt is enabled, does WDT reset take place after interrupt handling?

Does it take a reset after an interrupt?

Or will interrupts and reset occur simultaneously?

If it happens simultaneously, I would like to know how to use the overflow interrupt.

Best regards,
Sasaki

0 Sh.Sasaki over 7 years ago in reply to Biser Gatchev-XID

Guru 13625 points

Is there any information about the above?

0 Biser Gatchev-XID over 7 years ago in reply to Sh.Sasaki

TI__Guru**** 393215 points

We are checking this. Feedback will be posted here when available.

0 JJD over 7 years ago in reply to Biser Gatchev-XID

TI__Guru* 85910 points

Sasaki, the reset will supersede the interrupt. In this device, the watchdog overflow interrupt is meaningless. If you need an overflow interrupt, you should use one of the general purpose timers.

Regards,
James

0 Sh.Sasaki over 7 years ago in reply to JJD

Guru 13625 points

Hi James-san,

Thank you for your reply.

I got it.

I will contact the customer to use GP Timer.

Besst regards,

Sasaki

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AM4372: Watchdog overflow interrupt