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Maureen Helm c79b1a38aa samples: display: Convert driver and lvgl sample.yaml to use depends_on Converts the display driver and lvgl sample.yaml to select boards for the adafruit_2_8_tft_touch_v2 shield configuration by depending on the arduino_{gpio,i2c,spi} features instead of using an explicit platform_allow list. This will enable twister to automatically select new boards that add support for Arduino ports. The reel_board and reel_board_v2 are excluded due to a conflict between display drivers (onboard display vs. shield display). The ubx_evkannab1_nrf52832 board is excluded due to a conflict between the arduino_spi and arduino_i2c ports, which cannot be used simultaneously. Signed-off-by: Maureen Helm <maureen.helm@nxp.com>		2021-05-19 08:14:25 -05:00
..
src	…
CMakeLists.txt	…
README.rst	…
prj.conf	…
sample.yaml	samples: display: Convert driver and lvgl sample.yaml to use depends_on	2021-05-19 08:14:25 -05:00

README.rst

.. _display-sample:

Display Sample
##############

Overview
********

This sample will draw some basic rectangles onto the display.
The rectangle colors and positions are chosen so that you can check the
orientation of the LCD and correct RGB bit order. The rectangles are drawn
in clockwise order, from top left corner: red, green, blue, grey. The shade of
grey changes from black through to white. If the grey looks too green or red
at any point or the order of the corners is not as described above then the LCD
may be endian swapped.

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

As this is a generic sample it should work with any display supported by Zephyr.

Below is an example on how to build for a :ref:`nrf52840dk_nrf52840` board with a
:ref:`adafruit_2_8_tft_touch_v2`.

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/display
   :board: nrf52840dk_nrf52840
   :goals: build
   :shield: adafruit_2_8_tft_touch_v2
   :compact:

For testing purpose without the need of any hardware, the :ref:`native_posix`
board is also supported and can be built as follows;

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/display
   :board: native_posix
   :goals: build
   :compact:

List of Arduino-based display shields
*************************************

- :ref:`adafruit_2_8_tft_touch_v2`
- :ref:`ssd1306_128_shield`
- :ref:`st7789v_generic`
- :ref:`waveshare_e_paper_raw_panel_shield`