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  • Case ID: 338782
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Enabling PM for blinky example on NRF9160 DK

devMV

Hi there,

I am new to the platform , we are working on a proof of concept to  reduce idle power consumption as low as possible on an NRF9160, I want to put the system in system off mode using pm_power_state_force and then wake it up with an interrupt. To accomplish this I wanted to take an example like blinky, setup an additional button input , force it into system off mode then wake up on the button press.  

The issue is that when i try to set CONFIG_PM=y, in the project config file, i see the warning :"CONFIG_PM was assigned the value y, but got the value n. Missing dependencies:
SOC_SERIES_EFR32BG22 || SOC_SERIES_EFR32BG27 || SOC_SERIES_EFR32MG24 || (SOC_SERIES_DA1469X && SOC_FAMILY_RENESAS_SMARTBOND) || (SYS_CLOCK_EXISTS && HAS_PM)" and I assume this is why I cant call :

pm_power_state_force(); in main

I am using the blinky example in sdk version 2.8.0 for further info.

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  • 0

    Hello,

    The issue is that when i try to set CONFIG_PM=y, in the project config file, i see the warning

    Try using CONFIG_PM_DEVICE=y instead of CONFIG_PM=y.

    I see from zephyr's release notes that:

      * The following functions were renamed:

    * :c:func:`pm_power_state_next_get()` is now :c:func:`pm_state_next_get()`
    * :c:func:`pm_power_state_force()` is now :c:func:`pm_state_force()`

    Sp perhaps you need to use pm_state_force() instead of pm_power_state_force().

    However, you can also use sys_poweroff(), as demonstrated in the sample you can find in:

    NCS\zephyr\samples\boards\nordic\system_off. It is a small sample that just writes a few lines to the UART console, before disabling the uart, setting a gpio/button for wakeup, and enters system off.

    Best regards,

    Edvin

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  • 0

    Hello,

    The issue is that when i try to set CONFIG_PM=y, in the project config file, i see the warning

    Try using CONFIG_PM_DEVICE=y instead of CONFIG_PM=y.

    I see from zephyr's release notes that:

      * The following functions were renamed:

    * :c:func:`pm_power_state_next_get()` is now :c:func:`pm_state_next_get()`
    * :c:func:`pm_power_state_force()` is now :c:func:`pm_state_force()`

    Sp perhaps you need to use pm_state_force() instead of pm_power_state_force().

    However, you can also use sys_poweroff(), as demonstrated in the sample you can find in:

    NCS\zephyr\samples\boards\nordic\system_off. It is a small sample that just writes a few lines to the UART console, before disabling the uart, setting a gpio/button for wakeup, and enters system off.

    Best regards,

    Edvin

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