79e6b0e0f6
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> |
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| .. | ||
| src | ||
| CMakeLists.txt | ||
| prj.conf | ||
| README.rst | ||
| sample.yaml | ||
.. _samples_lcd_hd44780:
LCD HD44780 driver sample
#########################
Overview
********
Display text strings on parallel interfacing HD44780 based
generic LCD controller using GPIO pins to interface with
Arduino Due (SAM3).
Building and Running
********************
This project can be built and executed on as follows:
.. zephyr-app-commands::
:zephyr-app: samples/drivers/lcd_hd44780
:host-os: unix
:board: arduino_due
:goals: flash
:compact:
Sample Output
=============
.. code-block:: console
LCD Init
Page 1: message
Page 2: message
Page 3: message
Display output
==============
.. code-block:: console
********************
Arduino Due
yalpsiD DCL 4x02
********************
.. code-block:: console
-------------------
Zephyr Rocks!
My super RTOS
-------------------
.. code-block:: console
--------------------
--------HOME--------
I am home!