zephyr

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Andrzej Głąbek 7d5c9fa7a9 samples: Use immediate logging mode in watchdog related samples Starting with commit `b9b43a0eb7`, printk() messages are handled by the logging subsystem. This can cause trouble in watchdog related samples if the deferred logging mode is used (and currently it is by default), because those samples are ended by a reset and some messages may not get a chance to be outputted. Since the same problem concerns also the ordinary logging messages that may be produced during execution of the samples, this commit fixes it by switching to the immediate logging mode, not by just disabling the LOG_PRINTK option. Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>		2022-12-10 09:45:02 +01:00
..
src	…
CMakeLists.txt	…
README.rst	…
prj.conf	samples: Use immediate logging mode in watchdog related samples	2022-12-10 09:45:02 +01:00
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...