zephyr

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Nick Ward e0f18128bf task_wdt: fix silent init failures The task_wdt_init() API can fail to install a timeout for the fallback hardware WDT (hw_wdt) without returning an error code. This patch enables task_wdt_init() to return the hw_wdt install timeout error code if the hw_wdt install timeout fails. Signed-off-by: Nick Ward <nick.ward@setec.com.au>		2021-10-01 15:21:32 +02:00
..
src	task_wdt: fix silent init failures	2021-10-01 15:21:32 +02:00
CMakeLists.txt	…
README.rst	…
prj.conf	…
sample.yaml	…

README.rst

.. _task_wdt_sample:

Task Watchdog Sample
####################

Overview
********

This sample allows to test the task watchdog subsystem.

Building and Running
********************

It should be possible to build and run the task watchdog sample on almost any
board. If a hardware watchdog is defined in the devicetree, it is used as a
fallback. Otherwise the task watchdog will run independently.

Building and Running for ST Nucleo L073RZ
=========================================
The sample can be built and executed for the
:ref:`nucleo_l073rz_board` as follows:

.. zephyr-app-commands::
   :zephyr-app: samples/subsys/task_wdt
   :board: nucleo_l073rz
   :goals: build flash
   :compact:

For other boards just replace the board name.

Sample output
=============

The following output is printed and continuously repeated (after each
reset):

.. code-block:: console

   Task watchdog sample application.
   Main thread still alive...
   Control thread started.
   Main thread still alive...
   Main thread still alive...
   Main thread still alive...
   Control thread getting stuck...
   Main thread still alive...
   Task watchdog channel 1 callback, thread: control
   Resetting device...