Zephyr ncs sleep modes

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Zephyr and Nordic ncs Sleep Modes 2022-01-15 Tuesday

Some posts and links to follow:


Looking now more closely at nRF9160 System in Package (SiP):

Oh and a note on nRF9160 watchdog timer:

This looks important:


^ nRF9160 Sleep Mode Forum Posts

nRF9160 sleep mode not working in SDK 'nrf' v1.6.1, works in 1.7.0 . . .

Symbol 'PSM' may be a more apt symbol for which to search, also looks like power savings modes may only be practical with certain network providers:


^ Power Savings Mode Ten Minutes Period Example

Excerpts from this post:

    "In order to achieve the lowest possible current consumption, logging has to be turned off. This is done by,

    Adding the CONFIG_SERIAL=n flag to the prj.conf file in the project folder.
    Adding the CONFIG_SERIAL=n to the SPM prj.conf file. This is located in the SDK_ROOT/nrf/samples/nrf9160/spm folder."


^ Terms

  • Universal Integrated Circuit Card (UICC)


^ Pattern Searches in Zephyr and NRF Repositories

Some searches whose results to further explore . . .

ted@localhost:~/projects/zephyr-based/zephyr$ grep -nr sleeping ./*
./arch/arm/core/aarch32/cpu_idle.S:125:	 * Lock PRIMASK while sleeping: wfe will still get interrupted by
./arch/arm/core/aarch32/nmi_on_reset.S:12: * is to hard hang, sleeping.
./boards/posix/native_posix/doc/index.rst:56:simulated CPU is sleeping.
./doc/guides/porting/arch.rst:226:yielding/sleeping primitives.