:orphan:

.. title:: choice: Main clock source

.. _choice_67:

.. describe:: choice: Main clock source

*Main clock source*

Type: ``bool``

Help
====

.. code-block:: none

    Selects the clock that the main clocks, such as the CPU
    clock and AHB clock, will be derived from.

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

(\ :kconfig:`SOC_SERIES_SAMD20 <CONFIG_SOC_SERIES_SAMD20>` || \ :kconfig:`SOC_SERIES_SAMD21 <CONFIG_SOC_SERIES_SAMD21>` || \ :kconfig:`SOC_SERIES_SAMR21 <CONFIG_SOC_SERIES_SAMR21>`) && \ :kconfig:`SOC_FAMILY_SAM0 <CONFIG_SOC_FAMILY_SAM0>`

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

Defaults
========

No defaults. Implicitly defaults to the first (visible) choice option.

Choice options
==============

- \ :kconfig:`SOC_ATMEL_SAMD_XOSC32K_AS_MAIN <CONFIG_SOC_ATMEL_SAMD_XOSC32K_AS_MAIN>`
- \ :kconfig:`SOC_ATMEL_SAMD_XOSC_AS_MAIN <CONFIG_SOC_ATMEL_SAMD_XOSC_AS_MAIN>`
- \ :kconfig:`SOC_ATMEL_SAMD_OSC8M_AS_MAIN <CONFIG_SOC_ATMEL_SAMD_OSC8M_AS_MAIN>`

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



At ``<Zephyr SoC>/arm/atmel_sam0/common/Kconfig.samd2x:17``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:38`` → ``<Zephyr SoC>/Kconfig:15`` → ``<BuildDir>/kconfig/Kconfig.soc.arch:2`` → ``<Zephyr SoC>/arm/atmel_sam0/Kconfig:16``

Menu path: (Top) → Hardware Configuration

.. code-block:: kconfig

    choice
    	bool "Main clock source"
    	depends on (SOC_SERIES_SAMD20 || SOC_SERIES_SAMD21 || SOC_SERIES_SAMR21) && SOC_FAMILY_SAM0
    	help
    	  Selects the clock that the main clocks, such as the CPU
    	  clock and AHB clock, will be derived from.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*