:orphan:

.. title:: CONFIG_WDT_COUNTER

.. kconfig:: CONFIG_WDT_COUNTER

CONFIG_WDT_COUNTER
##################

*Counter based watchdog*

Type: ``bool``

Help
====

.. code-block:: none

    Watchdog emulated with counter device. If counter device supports using
    zero latency interrupts (ZLI) then expiration callback can be called from
    that context. This watchdog can be used along hardware watchdog to
    overcome hardware  watchdog limitations, e.g. Nordic devices reset
    unconditionally at fixed time after hitting watchdog interrupt, leaving
    no time to print debug information. Watchdog has limitations since it
    cannot interrupt same or higher priorities so it cannot fully replace
    hardware based watchdog.

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

\ :kconfig:`WATCHDOG <CONFIG_WATCHDOG>`

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

Default
=======

- n

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

- \ :kconfig:`COUNTER <CONFIG_COUNTER>`

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



At ``<Driver>/watchdog/Kconfig:33``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:42`` → ``<Driver>/Kconfig:54``

Menu path: (Top) → Device Drivers → Watchdog Support

.. code-block:: kconfig

    config WDT_COUNTER
    	bool "Counter based watchdog"
    	default n
    	select COUNTER
    	depends on WATCHDOG
    	help
    	  Watchdog emulated with counter device. If counter device supports using
    	  zero latency interrupts (ZLI) then expiration callback can be called from
    	  that context. This watchdog can be used along hardware watchdog to
    	  overcome hardware  watchdog limitations, e.g. Nordic devices reset
    	  unconditionally at fixed time after hitting watchdog interrupt, leaving
    	  no time to print debug information. Watchdog has limitations since it
    	  cannot interrupt same or higher priorities so it cannot fully replace
    	  hardware based watchdog.

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