S32KのトピックVPLS Mode Wakeup Source

VPLS Mode Wakeup Source

Learner — Sat, 20 Mar 2021 17:55:49 GMT

Hi
I am trying to use VPLS power mode in S32K148. And i want to wakeup through GPIO interrupt.

In my current design i am using Internal clock. I am not using any external crystal Oscillator in my design.

As mentioned in the notes of reference Manual Section "Module Operation in available power modes" that “ Device Can Support ASYNC Wakeup from VPLS through GPIO”
So in this case which clock would be active

Please refer the snapshot attached for detail.

Re: VPLS Mode Wakeup Source

Robin_Shen — Tue, 23 Mar 2021 04:16:45 GMT

You can refer the power_mode_switch_s32k148 example in S32SDK S32K1XX RTM 4.0.1.

Asynchronous Wake-up Interrupt Controller (AWIC) detect asynchronous wake-up events in stop modes and signal to clock control logic to resume system clocking.
Pin interrupts one of the VLPS wake-up sources.

There is not much information about the AWIC module in our manual. But it mentioned: Full documentation for this module is provided by Arm and can be found at arm.com.
So I think consulting ARM may get more accurate answers.

Best Regards,
Robin
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Re: VPLS Mode Wakeup Source

Learner — Tue, 23 Mar 2021 04:56:25 GMT

Hi @Robin_Shen

Thanks for your detailed response.

Question: While using internal clock (No external crystal oscillator), is it possible to wakeup from VPLS mode through GPIO interrupt?

Re: VPLS Mode Wakeup Source

Robin_Shen — Tue, 23 Mar 2021 05:46:45 GMT

Yes.