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https://github.com/zephyrproject-rtos/zephyr
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407b49b35c
Using find_package to locate Zephyr.
Old behavior was to use $ENV{ZEPHYR_BASE} for inclusion of boiler plate
code.
Whenever an automatic run of CMake happend by the build system / IDE
then it was required that ZEPHYR_BASE was defined.
Using ZEPHYR_BASE only to locate the Zephyr package allows CMake to
cache the base variable and thus allowing subsequent invocation even
if ZEPHYR_BASE is not set in the environment.
It also removes the risk of strange build results if a user switchs
between different Zephyr based project folders and forgetting to reset
ZEPHYR_BASE before running ninja / make.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
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| .. | ||
| src | ||
| CMakeLists.txt | ||
| dts_fixup.h | ||
| prj.conf | ||
| README.rst | ||
| sample.yaml | ||
.. _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`