76 lines
1.7 KiB
ReStructuredText
76 lines
1.7 KiB
ReStructuredText
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.. _lvgl-sample:
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LittlevGL Basic Sample
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######################
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Overview
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********
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This sample application displays "Hello World" in the center of the screen
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and a counter at the bottom which increments every second.
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Requirements
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************
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- `nRF52840 Preview development kit`_
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- `Adafruit 2.2 inch TFT Display`_
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or a simulated display environment in a native Posix application:
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- :ref:`native_posix`
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- `SDL2`_
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Wiring
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******
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The nrf52840 Preview development kit should be connected as follows to the
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Adafruit TFT display.
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+-------------+----------------+
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| | nrf52840 | | Adafruit TFT |
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| | Pin | | Pin |
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+=============+================+
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| P0.27 | SCK |
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+-------------+----------------+
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| P0.31 | D/C |
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+-------------+----------------+
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| P0.30 | RST |
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+-------------+----------------+
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| P0.26 | MOSI |
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+-------------+----------------+
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| P0.29 | MISO |
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+-------------+----------------+
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| P0.4 | NSS |
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+-------------+----------------+
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Building and Running
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********************
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Build this sample using the following commands:
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.. zephyr-app-commands::
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:zephyr-app: samples/gui/lvgl
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:board: nrf52840_pca10056
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:goals: build
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:compact:
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See :ref:`nrf52840_pca10056` on how to flash the build.
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or
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.. zephyr-app-commands::
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:zephyr-app: samples/gui/lvgl
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:board: native_posix
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:goals: build
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:compact:
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References
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**********
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.. target-notes::
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.. _LittlevGL Web Page: https://littlevgl.com/
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.. _Adafruit 2.2 inch TFT Display: https://www.adafruit.com/product/1480
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.. _nRF52840 Preview development kit: http://www.nordicsemi.com/eng/Products/nRF52840-Preview-DK
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.. _SDL2: https://www.libsdl.org
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