Restart issues in PF3001 pmic chip

[vinothkumars]

Dear All,

I am using PF3001 for restart application. I controlled the PMIC_ON_REQ of pmic chip by configure the SNVS_PMIC_ON_REQ from my imx processor. And also I enabled the PWRONRSTEN and RESTARTEN bit in PWRCTRL  register of PMIC chip as per datasheet.

As per datasheet after 4 Seconds the PMIC will restart. But, in my case there is no restart. I got result like the processor is off(the software is off) and the hardware side the voltage was low.

Regards,

VinothS

[art · Accepted solution]

Actually, this restart logic as described for the RESTARTEN bit does not work since it contradicts with the functionality of the PWRON signal. So, the ON/OFF state of PMIC is completely controlled only by the PWRON signal.

Have a great day,
Artur

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[vinothkumars]

Hi Artur,

Thanks, I done through software.