zephyr

History

Andrzej Głąbek 20202902f2 dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig These changes were obtained by running a script created by Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following specification: 1. Read the contents of all dts_fixup.h files in Zephyr 2. Check the left-hand side of the #define macros (i.e. the X in #define X Y) 3. Check if that name is also the name of a Kconfig option 3.a If it is, then do nothing 3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it has neither of these two prefixes 4. Replace the use of the changed #define in the code itself (.c, .h, .ld) Additionally, some tweaks had to be added to this script to catch some of the macros used in the code in a parameterized form, e.g.: - CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS - CONFIG_UART_##idx##_TX_PIN - I2C_SBCON_##_num##_BASE_ADDR and to prevent adding DT_ prefix to the following symbols: - FLASH_START - FLASH_SIZE - SRAM_START - SRAM_SIZE - _ROM_ADDR - _ROM_SIZE - _RAM_ADDR - _RAM_SIZE which are surprisingly also defined in some dts_fixup.h files. Finally, some manual corrections had to be done as well: - name##_IRQ -> DT_##name##_IRQ in uart_stm32.c Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>		2018-11-13 10:44:42 -06:00
..
src	samples: display: set log level correctly	2018-10-08 17:49:12 -04:00
CMakeLists.txt	samples, tests: Use semi-accurate project names	2018-10-27 21:31:25 -04:00
README.rst	…
dts_fixup.h	dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig	2018-11-13 10:44:42 -06:00
nucleo_l476rg.overlay	samples: display: Updated ili9340 sample to use DTS	2018-10-29 22:19:58 -04:00
prj.conf	samples: display: Updated ili9340 sample to use DTS	2018-10-29 22:19:58 -04:00
sample.yaml	tests/samples: cleanup tags	2018-10-16 09:17:51 -04:00

README.rst

.. _ili9340-sample:

ILI9340 Display driver
######################

Overview
********

Every half-second, this sample application draws a color-filled rectangle in a
corner of the LCD display.  The rectangle fill color cycles through red, green,
and blue on each update.

Requirements
************

- `ST NUCLEO-L476RG development board`_
- `Adafruit 2.2 inch TFT Display`_

Wiring
******

The NUCLEO-L476RG should be connected as follows to the Adafruit TFT display.

+------------------+-----------------+----------------+
| | NUCLEO-L476RG  | | NUCLEO-L476RG | | Adafruit TFT |
| | Arduino Header | | Pin           | | Pin          |
+==================+=================+================+
| D3               | PB3             | SCK            |
+------------------+-----------------+----------------+
| D7               | PA8             | D/C            |
+------------------+-----------------+----------------+
| D8               | PA9             | RST            |
+------------------+-----------------+----------------+
| D11              | PA7             | MOSI           |
+------------------+-----------------+----------------+
| D12              | PA6             | MISO           |
+------------------+-----------------+----------------+
| A2               | PA4             | NSS            |
+------------------+-----------------+----------------+

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

Build this sample application with the following commands:

.. zephyr-app-commands::
   :zephyr-app: samples/display/ili9340
   :board: nucleo_l476rg
   :goals: build
   :compact:

See :ref:`nucleo_l476rg_board` on how to flash the build.

References
**********

- `ILI9340 datasheet`_

.. _Adafruit 2.2 inch TFT Display: https://www.adafruit.com/product/1480
.. _ST NUCLEO-L476RG development board: http://www.st.com/en/evaluation-tools/nucleo-l476rg.html
.. _ILI9340 datasheet: https://cdn-shop.adafruit.com/datasheets/ILI9340.pdf