:orphan:

.. title:: CONFIG_CORTEX_M_DWT

.. kconfig:: CONFIG_CORTEX_M_DWT

CONFIG_CORTEX_M_DWT
###################

*Enable and use the DWT*

Type: ``bool``

Help
====

.. code-block:: none

    Enable and use the Data Watchpoint and Trace (DWT) unit for
    timing functions.

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

\ :kconfig:`CPU_CORTEX_M_HAS_DWT <CONFIG_CPU_CORTEX_M_HAS_DWT>` && (\ :kconfig:`ARMV6_M_ARMV8_M_BASELINE <CONFIG_ARMV6_M_ARMV8_M_BASELINE>` || \ :kconfig:`ARMV7_M_ARMV8_M_MAINLINE <CONFIG_ARMV7_M_ARMV8_M_MAINLINE>`) && \ :kconfig:`CPU_CORTEX_M <CONFIG_CPU_CORTEX_M>` && \ :kconfig:`ARM <CONFIG_ARM>`

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

Default
=======

- y if \ :kconfig:`TIMING_FUNCTIONS <CONFIG_TIMING_FUNCTIONS>`

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

- \ :kconfig:`NULL_POINTER_EXCEPTION_DETECTION_DWT <CONFIG_NULL_POINTER_EXCEPTION_DETECTION_DWT>`

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



At ``<Zephyr Architecture>/arm/core/aarch32/cortex_m/Kconfig:328``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:39`` → ``<Zephyr Architecture>/Kconfig:12`` → ``<Zephyr Architecture>/arm/Kconfig:57`` → ``<Zephyr Architecture>/arm/core/aarch32/Kconfig:294``

Menu path: (Top) → ARM Options → ARM Cortex-M0/M0+/M1/M3/M4/M7/M23/M33 options

.. code-block:: kconfig

    config CORTEX_M_DWT
    	bool "Enable and use the DWT"
    	default y if TIMING_FUNCTIONS
    	depends on CPU_CORTEX_M_HAS_DWT && (ARMV6_M_ARMV8_M_BASELINE || ARMV7_M_ARMV8_M_MAINLINE) && CPU_CORTEX_M && ARM
    	help
    	  Enable and use the Data Watchpoint and Trace (DWT) unit for
    	  timing functions.

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