I am working on IMX8QM-MEK with Android Automotive. I have some doubt regarding power management.
1. Is it possible to sleep/ wake up the head unit using from M4 ?
2. Is M4 Core have the cloud support ?
Is anyone experience with M4 give some ideas ?
Thanks & Regards,
Is there any documents/ reference for Power Management using ARM Cortex-M4 core ?
Sorry for the delay. I sent you some example code via direct message.
1.There is no such option. Sorry for the inconvenience.
2.It is possible to use Ethernet on M4 core.
Thank you Victor Linnik for the quick reply.
How to configure user to control the sleep and wakeup by Ethernet ?
by using mem - able to sleep and wakeup the system.
Is there any configuration USER to control the sleep and wakeup functionality from M4 ?
you may need to configure the M4's MU as a wakeup source for A core. And has simulate the power key event and send to A core.
Could you give a more detail description about your case? We may think how to add into our release.
Thank You G.Y. CHEN for the quick reply.
How to configure M4 is WakeUp source for A core ?
Will you please provide the configuration.
Able to suspend and wakeup by using this commands,
AP_POWER_STATE_REQ - adb shell dumpsys activity service com.android.car inject-vhal-event 0x11410a00 4,2
Power Management | Android Open Source Project
I have to configure user wakeup the system instead of internal timer. AP_POWER_STATE_REQ using rtc timer to wakeup the system.
Hi G.Y. CHEN
I able to put on deep sleep by using
AP_POWER_STATE_REQ - 4, 2
Configure the timer for some of the min
And exit from Deep Sleep
AP_POWER_STATE_REQ - 3,2
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