zephyr/samples/subsys/ipc/openamp
Gerard Marull-Paretas 79e6b0e0f6 includes: prefer <zephyr/kernel.h> over <zephyr/zephyr.h>
As of today <zephyr/zephyr.h> is 100% equivalent to <zephyr/kernel.h>.
This patch proposes to then include <zephyr/kernel.h> instead of
<zephyr/zephyr.h> since it is more clear that you are including the
Kernel APIs and (probably) nothing else. <zephyr/zephyr.h> sounds like a
catch-all header that may be confusing. Most applications need to
include a bunch of other things to compile, e.g. driver headers or
subsystem headers like BT, logging, etc.

The idea of a catch-all header in Zephyr is probably not feasible
anyway. Reason is that Zephyr is not a library, like it could be for
example `libpython`. Zephyr provides many utilities nowadays: a kernel,
drivers, subsystems, etc and things will likely grow. A catch-all header
would be massive, difficult to keep up-to-date. It is also likely that
an application will only build a small subset. Note that subsystem-level
headers may use a catch-all approach to make things easier, though.

NOTE: This patch is **NOT** removing the header, just removing its usage
in-tree. I'd advocate for its deprecation (add a #warning on it), but I
understand many people will have concerns.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-09-05 16:31:47 +02:00
..
boards
remote includes: prefer <zephyr/kernel.h> over <zephyr/zephyr.h> 2022-09-05 16:31:47 +02:00
src includes: prefer <zephyr/kernel.h> over <zephyr/zephyr.h> 2022-09-05 16:31:47 +02:00
CMakeLists.txt
README.rst
common.h
prj.conf
sample.yaml

README.rst

.. _openAMP_sample:

OpenAMP Sample Application
##########################

Overview
********

This application demonstrates how to use OpenAMP with Zephyr. It is designed to
demonstrate how to integrate OpenAMP with Zephyr both from a build perspective
and code.

Building the application for lpcxpresso54114_m4
***********************************************

.. zephyr-app-commands::
   :zephyr-app: samples/subsys/ipc/openamp
   :board: lpcxpresso54114_m4
   :goals: debug

Building the application for lpcxpresso55s69_cpu0
*************************************************

.. zephyr-app-commands::
   :zephyr-app: samples/subsys/ipc/openamp
   :board: lpcxpresso55s69_cpu0
   :goals: debug

Building the application for mps2_an521
***************************************

.. zephyr-app-commands::
   :zephyr-app: samples/subsys/ipc/openamp
   :board: mps2_an521
   :goals: debug

Building the application for v2m_musca_b1
*****************************************

.. zephyr-app-commands::
   :zephyr-app: samples/subsys/ipc/openamp
   :board: v2m_musca_b1
   :goals: debug

Open a serial terminal (minicom, putty, etc.) and connect the board with the
following settings:

- Speed: 115200
- Data: 8 bits
- Parity: None
- Stop bits: 1

Reset the board and the following message will appear on the corresponding
serial port, one is master another is remote:

.. code-block:: console

   **** Booting Zephyr OS build zephyr-v1.14.0-2064-g888fc98fddaa ****
   Starting application thread!

   OpenAMP[master] demo started
   Master core received a message: 1
   Master core received a message: 3
   Master core received a message: 5
   ...
   Master core received a message: 99
   OpenAMP demo ended.


.. code-block:: console

   **** Booting Zephyr OS build zephyr-v1.14.0-2064-g888fc98fddaa ****
   Starting application thread!

   OpenAMP[remote] demo started
   Remote core received a message: 0
   Remote core received a message: 2
   Remote core received a message: 4
   ...
   Remote core received a message: 98
   OpenAMP demo ended.