Help¶

If RTC is used as system timer then LF clock is always on and handling can be simplified.

Direct dependencies¶

CLOCK_CONTROL_NRF_K32SRC_RC_CALIBRATION && CLOCK_CONTROL_NRF && CLOCK_CONTROL

(Includes any dependencies from ifs and menus.)

Default¶

y if NRF_RTC_TIMER

Kconfig definition¶

At <Zephyr>/drivers/clock_control/Kconfig.nrf:69

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:32 → <Zephyr>/drivers/Kconfig:54 → <Zephyr>/drivers/clock_control/Kconfig:23

Menu path: (Top) → Device Drivers → Hardware clock controller support → NRF Clock controller support → Enable LF clock calibration

config CLOCK_CONTROL_NRF_CALIBRATION_LF_ALWAYS_ON
    bool "LF clock is always on"
    default y if NRF_RTC_TIMER
    depends on CLOCK_CONTROL_NRF_K32SRC_RC_CALIBRATION && CLOCK_CONTROL_NRF && CLOCK_CONTROL
    help
      If RTC is used as system timer then LF clock is always on and handling
      can be simplified.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)