What is the Behavior of PMIC using external Watchdog (Wdg_43_VR5510)

[Anup97]

I have implemented the external watchdog (Wdg_43_VR5510) for PMIC. But it is going into endless loop in Pmic_VR5XX_TimeoutLoops_StateTransistion (refer below).

Currently it is in INIT_FS state, as per the state diagram it says we need to have a good watchdog refresh to change the state from INIT_FS to Wait_ABIST2.

To Satisfy the first good watchdog refresh within 256ms, we have called watchdog trigger API after Wdg_43_VR5510_Init function during EcuM Initialization.

We need to know, how and where to call the first watchdog refresh. So that the state transition happens from INIT_FS to wait_ABIST2.

[Anup97]

Thank you @Celeste_Liu.

[Celeste_Liu]

Dear @Anup97 ,

Thanks for contacting us. We are following this same inquiry with another member of your company. We will mirror this issue to another thread (link: Behavior-of-PMIC-using-external-Watchdog-Wdg-43-VR5510 ). Thank you for your understanding and support.

Best Regards,

Celeste