i.MX ProcessorsのトピックRe: Can FreeRTOS set gpio as wakeup source

Can FreeRTOS set gpio as wakeup source

674943148 — Thu, 13 Feb 2020 02:10:26 GMT

Hi all,

i am using a imx7D board, and i wonder how to wake up the Cortex-M4 core after entering sleep mode. Is it possible to configure gpio as a wakeup source in FreeRTOS? How to do it?

Best regards

Re: Can FreeRTOS set gpio as wakeup source

igorpadykov — Thu, 13 Feb 2020 23:34:19 GMT

HI wang

I am afraid it is not possible as sleep mode supported only in linux.

Best regards
igor
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Re: Can FreeRTOS set gpio as wakeup source

674943148 — Fri, 14 Feb 2020 08:03:24 GMT

Hi igor

Thank you for your reply and there's something wrong with my statement. I used LPM_MCORE_SetPowerStatus() to enter LPM_M4_STATE_STOP in a FreeRTOS task, which is a low-power state with Cortex-M4 closed. But i don't know how to resume it with a tickless external interrupt.

Best regards

Wang

Re: Can FreeRTOS set gpio as wakeup source

vinothkumars — Wed, 20 May 2020 13:42:20 GMT

Hi Wang,

Will you please give your configuration. I also struggling in wake up.

Thanks & Regards,

VinothS,