:orphan:

.. title:: CLOCK_CONTROL_NRF_CALIBRATION_LF_ALWAYS_ON

.. option:: CONFIG_CLOCK_CONTROL_NRF_CALIBRATION_LF_ALWAYS_ON

*LF clock is always on*

Type: ``bool``

Help
====

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

Direct dependencies
===================

\ :option:`CLOCK_CONTROL_NRF_K32SRC_RC_CALIBRATION <CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC_CALIBRATION>` && \ :option:`CLOCK_CONTROL_NRF <CONFIG_CLOCK_CONTROL_NRF>` && \ :option:`CLOCK_CONTROL <CONFIG_CLOCK_CONTROL>`

*(Includes any dependencies from ifs and menus.)*

Default
=======

- y if \ :option:`NRF_RTC_TIMER <CONFIG_NRF_RTC_TIMER>`

Kconfig definition
==================

.. highlight:: kconfig

At ``drivers/clock_control/Kconfig.nrf:68``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:32`` → ``drivers/Kconfig:54`` → ``drivers/clock_control/Kconfig:23``

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

.. parsed-literal::

    config CLOCK_CONTROL_NRF_CALIBRATION_LF_ALWAYS_ON
    	bool "LF clock is always on"
    	default y if \ :option:`NRF_RTC_TIMER <CONFIG_NRF_RTC_TIMER>`
    	depends on \ :option:`CLOCK_CONTROL_NRF_K32SRC_RC_CALIBRATION <CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC_CALIBRATION>` && \ :option:`CLOCK_CONTROL_NRF <CONFIG_CLOCK_CONTROL_NRF>` && \ :option:`CLOCK_CONTROL <CONFIG_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.)*