zephyr

History

Johann Fischer f00b272711 boards: reel_board: revise SPI routing Revise SPI routing. Use slower SPI_1 for EPD and SPI_3 for expansion connector. Signed-off-by: Johann Fischer <j.fischer@phytec.de>		2019-10-23 20:58:19 -04:00
..
boards	boards: reel_board: revise SPI routing	2019-10-23 20:58:19 -04:00
src	coccinelle: standardize k_sleep calls with integer timeouts	2019-10-09 08:38:10 -04:00
CMakeLists.txt	cmake: samples/tests: update cmake_minimum_required() to 3.13.1	2019-09-27 23:09:24 -04:00
README.rst	samples: lvgl: update README.rst	2019-09-25 02:35:49 -07:00
prj.conf	gui: Disable LVGL features by default	2019-08-09 07:35:38 -05:00
sample.yaml	sample: lvgl: add test for the panels supported by WAVESHARE e-Paper	2019-10-04 18:49:04 -07:00

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
************

Display shield and a board which provides a configuration
for Arduino connectors, for example:

- :ref:`adafruit_2_8_tft_touch_v2` and :ref:`nrf52840_pca10056`
- :ref:`ssd1306_128x64_shield` and :ref:`frdm_k64f`

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`_

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

Example building for :ref:`nrf52840_pca10056`:

.. zephyr-app-commands::
   :zephyr-app: samples/gui/lvgl
   :board: nrf52840_pca10056
   :shield: adafruit_2_8_tft_touch_v2
   :goals: build flash

Example building for :ref:`native_posix`:

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

References
**********

.. target-notes::

.. _LittlevGL Web Page: https://littlevgl.com/
.. _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