AM2634-Q1: [MCAL]how to reduce PMIC WDG expired time to 100ms?

Hi SI,

Can you provide below details?

1) Are they using MCAL Wdg driver? I do not see this api Wdg_31_TPS65385xA_Trigger in our MCAL stack.

2) Please correct me if my understanding is wrong, are they using Gpt4 timer ISR to service wdg?

BR,

Sunil M S

Hi,

 I reply below comment.

1) We are using TPS653850-Q1 as Ext WDG.

2) We are using GPT channel 4 ISR to service WDG.

We want to reduce expiration time from 500ms to 100ms for safety. We have to reduce GPT ISR timer from 76ms to 14ms or 15ms.

Here is the configuration with expiration time set to 500ms

-GPT reference clock source is RTI1.

-Module1 Counter Blk0 frequency is 100000.

-Prescaler is 0

if you need more information about GPT configuration.

We'll let you know.

Best Regards,

Sukjin Hong

Hi Hong,

So you need to reduce PMIC WDG timer or GPT or both?Please clarify.

MCAL GPT timer configuration details are documented below.

Section "4.13.13.4. Configuration used to test this example"

https://software-dl.ti.com/mcu-plus-sdk/esd/PLATFORM_SW_MCAL/AM263x/09.02.00/modules/gpt.html#configuration-description-gpt

BR,

Sunil M S