M4 MCU wake-up signal would be sent to the AP through the GPIO

[vinothkumars]

Hi All,

Will you please tell me the configuration for Application Processor wake up using GPIO from M4 MCU. I am working on IMX8QM-MEK board with SDK_MEK-MIMX8QM sdk.

Thanks & Regards,

Vinoth S,

[igorpadykov]

Hi Vinoth

probably "GPIO from M4 MCU" means "Rapid General-Purpose Input and Output (RGPIO)"

module of Cortex-M4 Subsystem, however this gpio module has not interrupt feature.

So seems this is not possible.

Best regards
igor
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[vinothkumars]

Thank you Igor for the reply.

Will you please tell is it possible to configure FLEX CAN as a wakeup source to wake AP from M4 MCU

Thanks,

VinothS,

[igorpadykov]

Hi Vinoth

could you clarify, who would wake AP: FLEX CAN or M4.

Best regards
igor

[vinothkumars]

Hi Igor,

I know there is RPMSG  Wake-Up will be there. But, I don't know how to established this RPMSG Wake-Up in Android 9 Automotive.

Regards,

Vinoth S,

[vinothkumars]

Hi Igor,

I needs to use FLEX CAN (currently flexcan run on M4 Core0) to wakeup the AP.

Regards,

VinothS