zephyr/samples/drivers/display
Mahesh Mahadevan 5f5337b9f3 samples: display: Increase Heap size for RT1170 EVK
Increase the heap size for RT1170 EVK to allocate the
display buffers for a 720x1280 display

Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
2022-05-12 09:26:50 -05:00
..
boards samples: display: Increase Heap size for RT1170 EVK 2022-05-12 09:26:50 -05:00
src samples: migrate includes to contain <zephyr/...> prefix 2022-05-06 11:29:59 +02:00
CMakeLists.txt
dummy_dc.overlay drivers: display_dummy: rework to obtain configuration from devicetree 2021-12-10 12:47:30 +01:00
prj.conf
README.rst
sample.yaml samples: display: build for st7735r, gd7965 and ls0xx 2022-02-24 09:09:02 -08:00

.. _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`