topic S32K322 Low power Wakeup in S32K

S32K322 Low power Wakeup

vinaykl — Wed, 02 Jul 2025 10:22:48 GMT

Hello Team,

I had migrated the low power mode project from S32K344 to S32K322. But during Power Initialization it is stopping the execution. Kindly find the project files added with this query. Please let me know what steps I had missed.

Re: S32K322 Low power Wakeup

Julián_AragónM — Wed, 02 Jul 2025 16:46:06 GMT

Hi @vinaykl,

I am unable to test the project, since we only have the evaluation boards as reference, but does execution stop in line 97 (Power_Ip_Init)?

In your design, could you confirm if the V15 supply is taken from de FS26/SBC 1.5V regulator?

In the S32K344 EVB, if jumper J31 is set at default (1-2), this setting should be disabled:

Other than that, I don't see anything necessarily wrong in the configuration or code, it seems to be the same as the provided examples.

Best regards,
Julián

Re: S32K322 Low power Wakeup

vinaykl — Wed, 09 Jul 2025 06:22:21 GMT

Hi Julian,

Thank you for the response. I really appreciate your reply.

I have checked in our schematic V15 is connected to FS26_CORE.

And whatever we have shared with you is perfectly working in S32K344 EVK and we don't have any problem there.

Only when we migrated the project configuration and files from S32K344 to S32K322 we are facing this issue. The execution stops at Initialization of PowerInit().

Any other solution if available will be truly appreciated.

Regards,

Vinay

Re: S32K322 Low power Wakeup

Julián_AragónM — Wed, 09 Jul 2025 22:03:32 GMT

Hi @vinaykl,

Could you share inside what function from Power_Ip_Init is the hard fault happening?

There could also be hardware issues that I'm unable to replicate because of the custom design. Please confirm if you've followed the hardware design guidelines from the HW Design Package.

Best regards,
Julián