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zephyr/samples/gui/lvgl
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Anas Nashif 3ae52624ff license: cleanup: add SPDX Apache-2.0 license identifier 
Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier.  Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.

By default all files without license information are under the default
license of Zephyr, which is Apache version 2.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
 		2019-04-07 08:45:22 -04:00
..
boards boards: mimxrt10{50,60}_evk: Set lvgl defaults in board defconfigs 2019-03-13 06:02:42 -05:00
src all: Add 'U' suffix when using unsigned variables 2019-03-28 17:15:58 -05:00
CMakeLists.txt license: cleanup: add SPDX Apache-2.0 license identifier 2019-04-07 08:45:22 -04:00
README.rst doc: prepare for improving doc API linking 2019-03-15 05:47:19 +01:00
nrf52840_pca10056.overlay sample: gui: Added basic sample for lvgl library 2019-01-07 16:05:35 -05:00
prj.conf sample: gui: Added basic sample for lvgl library 2019-01-07 16:05:35 -05:00
reel_board.overlay sample: gui: Added basic sample for lvgl library 2019-01-07 16:05:35 -05:00
sample.yaml samples: add test identifier 2019-03-29 17:44:11 -04:00

README.rst 

.. _lvgl-sample:

LittlevGL Basic Sample
######################

Overview
********

This sample application displays "Hello World" in the center of the screen
and a counter at the bottom which increments every second.

Requirements
************

- `nRF52840 Preview development kit`_
- `Adafruit 2.2 inch TFT Display`_

or a simulated display environment in a native Posix application:

- :ref:`native_posix`
- `SDL2`_

or

- :ref:`mimxrt1050_evk`
- `RK043FN02H-CT`_

or

- :ref:`mimxrt1060_evk`
- `RK043FN02H-CT`_

Wiring
******

The nrf52840 Preview development kit should be connected as follows to the
Adafruit TFT display.

+-------------+----------------+
| | nrf52840  | | Adafruit TFT |
| | Pin       | | Pin          |
+=============+================+
| P0.27       | SCK            |
+-------------+----------------+
| P0.31       | D/C            |
+-------------+----------------+
| P0.30       | RST            |
+-------------+----------------+
| P0.26       | MOSI           |
+-------------+----------------+
| P0.29       | MISO           |
+-------------+----------------+
| P0.4        | NSS            |
+-------------+----------------+

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

Build this sample using the following commands:

.. zephyr-app-commands::
   :zephyr-app: samples/gui/lvgl
   :board: nrf52840_pca10056
   :goals: build
   :compact:

See :ref:`nrf52840_pca10056` on how to flash the build.

or

.. zephyr-app-commands::
   :zephyr-app: samples/gui/lvgl
   :board: native_posix
   :goals: build
   :compact:

References
**********

.. target-notes::

.. _LittlevGL Web Page: https://littlevgl.com/
.. _Adafruit 2.2 inch TFT Display: https://www.adafruit.com/product/1480
.. _nRF52840 Preview development kit: http://www.nordicsemi.com/eng/Products/nRF52840-Preview-DK
.. _SDL2: https://www.libsdl.org
.. _RK043FN02H-CT: https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/i.mx-applications-processors/i.mx-rt-series/4.3-lcd-panel:RK043FN02H-CT