:orphan:

.. title:: CPU_CORTEX_M

.. option:: CONFIG_CPU_CORTEX_M

*(No prompt -- not directly user assignable.)*

Type: ``bool``

Help
====

This option signifies the use of a CPU of the Cortex-M family.

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

!\ :option:`ARM64 <CONFIG_ARM64>` && \ :option:`ARM <CONFIG_ARM>`

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

Defaults
========

No defaults. Implicitly defaults to ``n``.

Symbols selected by this symbol
===============================

- \ :option:`CPU_CORTEX <CONFIG_CPU_CORTEX>`
- \ :option:`ARCH_HAS_CUSTOM_SWAP_TO_MAIN <CONFIG_ARCH_HAS_CUSTOM_SWAP_TO_MAIN>`
- \ :option:`HAS_CMSIS_CORE <CONFIG_HAS_CMSIS_CORE>`
- \ :option:`HAS_FLASH_LOAD_OFFSET <CONFIG_HAS_FLASH_LOAD_OFFSET>`
- \ :option:`ARCH_HAS_THREAD_ABORT <CONFIG_ARCH_HAS_THREAD_ABORT>`
- \ :option:`ARCH_HAS_TRUSTED_EXECUTION <CONFIG_ARCH_HAS_TRUSTED_EXECUTION>` if \ :option:`ARM_TRUSTZONE_M <CONFIG_ARM_TRUSTZONE_M>`
- \ :option:`ARCH_HAS_STACK_PROTECTION <CONFIG_ARCH_HAS_STACK_PROTECTION>` if (\ :option:`ARM_MPU <CONFIG_ARM_MPU>` && !\ :option:`ARMV6_M_ARMV8_M_BASELINE <CONFIG_ARMV6_M_ARMV8_M_BASELINE>`) || \ :option:`CPU_CORTEX_M_HAS_SPLIM <CONFIG_CPU_CORTEX_M_HAS_SPLIM>`
- \ :option:`ARCH_HAS_USERSPACE <CONFIG_ARCH_HAS_USERSPACE>` if \ :option:`ARM_MPU <CONFIG_ARM_MPU>`
- \ :option:`ARCH_HAS_NOCACHE_MEMORY_SUPPORT <CONFIG_ARCH_HAS_NOCACHE_MEMORY_SUPPORT>` if \ :option:`ARM_MPU <CONFIG_ARM_MPU>` && \ :option:`CPU_HAS_ARM_MPU <CONFIG_CPU_HAS_ARM_MPU>` && \ :option:`CPU_CORTEX_M7 <CONFIG_CPU_CORTEX_M7>`
- \ :option:`ARCH_HAS_RAMFUNC_SUPPORT <CONFIG_ARCH_HAS_RAMFUNC_SUPPORT>`
- \ :option:`ARCH_HAS_NESTED_EXCEPTION_DETECTION <CONFIG_ARCH_HAS_NESTED_EXCEPTION_DETECTION>`
- \ :option:`SWAP_NONATOMIC <CONFIG_SWAP_NONATOMIC>`
- \ :option:`ARCH_HAS_EXTRA_EXCEPTION_INFO <CONFIG_ARCH_HAS_EXTRA_EXCEPTION_INFO>`
- \ :option:`ARCH_HAS_TIMING_FUNCTIONS <CONFIG_ARCH_HAS_TIMING_FUNCTIONS>` if \ :option:`CPU_CORTEX_M_HAS_DWT <CONFIG_CPU_CORTEX_M_HAS_DWT>`
- \ :option:`ARCH_SUPPORTS_ARCH_HW_INIT <CONFIG_ARCH_SUPPORTS_ARCH_HW_INIT>`

Symbols implied by this symbol
==============================

- \ :option:`XIP <CONFIG_XIP>`

Symbols that select this symbol
===============================

- \ :option:`CPU_CORTEX_M0 <CONFIG_CPU_CORTEX_M0>`
- \ :option:`CPU_CORTEX_M0PLUS <CONFIG_CPU_CORTEX_M0PLUS>`
- \ :option:`CPU_CORTEX_M1 <CONFIG_CPU_CORTEX_M1>`
- \ :option:`CPU_CORTEX_M3 <CONFIG_CPU_CORTEX_M3>`
- \ :option:`CPU_CORTEX_M4 <CONFIG_CPU_CORTEX_M4>`
- \ :option:`CPU_CORTEX_M23 <CONFIG_CPU_CORTEX_M23>`
- \ :option:`CPU_CORTEX_M33 <CONFIG_CPU_CORTEX_M33>`
- \ :option:`CPU_CORTEX_M7 <CONFIG_CPU_CORTEX_M7>`

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

.. highlight:: kconfig

At ``arch/arm/core/aarch32/Kconfig:6``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:29`` → ``arch/Kconfig:12`` → ``arch/arm/Kconfig:42``

Menu path: (Top) → ARM Options

.. parsed-literal::

    config CPU_CORTEX_M
    	bool
    	select \ :option:`CPU_CORTEX <CONFIG_CPU_CORTEX>`
    	select \ :option:`ARCH_HAS_CUSTOM_SWAP_TO_MAIN <CONFIG_ARCH_HAS_CUSTOM_SWAP_TO_MAIN>`
    	select \ :option:`HAS_CMSIS_CORE <CONFIG_HAS_CMSIS_CORE>`
    	select \ :option:`HAS_FLASH_LOAD_OFFSET <CONFIG_HAS_FLASH_LOAD_OFFSET>`
    	select \ :option:`ARCH_HAS_THREAD_ABORT <CONFIG_ARCH_HAS_THREAD_ABORT>`
    	select \ :option:`ARCH_HAS_TRUSTED_EXECUTION <CONFIG_ARCH_HAS_TRUSTED_EXECUTION>` if \ :option:`ARM_TRUSTZONE_M <CONFIG_ARM_TRUSTZONE_M>`
    	select \ :option:`ARCH_HAS_STACK_PROTECTION <CONFIG_ARCH_HAS_STACK_PROTECTION>` if (\ :option:`ARM_MPU <CONFIG_ARM_MPU>` && !\ :option:`ARMV6_M_ARMV8_M_BASELINE <CONFIG_ARMV6_M_ARMV8_M_BASELINE>`) || \ :option:`CPU_CORTEX_M_HAS_SPLIM <CONFIG_CPU_CORTEX_M_HAS_SPLIM>`
    	select \ :option:`ARCH_HAS_USERSPACE <CONFIG_ARCH_HAS_USERSPACE>` if \ :option:`ARM_MPU <CONFIG_ARM_MPU>`
    	select \ :option:`ARCH_HAS_NOCACHE_MEMORY_SUPPORT <CONFIG_ARCH_HAS_NOCACHE_MEMORY_SUPPORT>` if \ :option:`ARM_MPU <CONFIG_ARM_MPU>` && \ :option:`CPU_HAS_ARM_MPU <CONFIG_CPU_HAS_ARM_MPU>` && \ :option:`CPU_CORTEX_M7 <CONFIG_CPU_CORTEX_M7>`
    	select \ :option:`ARCH_HAS_RAMFUNC_SUPPORT <CONFIG_ARCH_HAS_RAMFUNC_SUPPORT>`
    	select \ :option:`ARCH_HAS_NESTED_EXCEPTION_DETECTION <CONFIG_ARCH_HAS_NESTED_EXCEPTION_DETECTION>`
    	select \ :option:`SWAP_NONATOMIC <CONFIG_SWAP_NONATOMIC>`
    	select \ :option:`ARCH_HAS_EXTRA_EXCEPTION_INFO <CONFIG_ARCH_HAS_EXTRA_EXCEPTION_INFO>`
    	select \ :option:`ARCH_HAS_TIMING_FUNCTIONS <CONFIG_ARCH_HAS_TIMING_FUNCTIONS>` if \ :option:`CPU_CORTEX_M_HAS_DWT <CONFIG_CPU_CORTEX_M_HAS_DWT>`
    	select \ :option:`ARCH_SUPPORTS_ARCH_HW_INIT <CONFIG_ARCH_SUPPORTS_ARCH_HW_INIT>`
    	imply \ :option:`XIP <CONFIG_XIP>`
    	depends on !\ :option:`ARM64 <CONFIG_ARM64>` && \ :option:`ARM <CONFIG_ARM>`
    	help
    	  This option signifies the use of a CPU of the Cortex-M family.

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