zephyr

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Marc Herbert 2cd51a33ce samples: make find_package(Zephyr...) REQUIRED This provides a better error message when building with CMake and forgetting ZEPHYR_BASE or not registering Zephyr in the CMake package registry. See parent commit for more details (split from parent for better readability). Signed-off-by: Marc Herbert <marc.herbert@intel.com>		2020-05-29 10:47:25 +02:00
..
boards	samples/drivers/led_*: Remove usage of CONFIG_I2C_X on stm32 boards	2020-04-15 08:21:30 -05:00
src	samples: drivers: Convert to new DT_INST macros	2020-03-31 07:12:30 -05:00
CMakeLists.txt	samples: make find_package(Zephyr...) REQUIRED	2020-05-29 10:47:25 +02:00
README.rst	…
prj.conf	…
sample.yaml	…

README.rst

.. _lp3943:

LP3943: 16-Channel RGB, White-LED Driver
########################################

Overview
********

This sample controls 16 LEDs connected to an LP3943 driver, in
a continuous pattern of turning them on one at a time (at a one
second interval) until they're all on, and then turning them off in
reverse order.

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

The :ref:`96b_neonkey` board has an LP3943 driver and 16 LEDs on board,
so we'll use this board for our example.

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

Build the application for the :ref:`96b_neonkey` board, which has an
LP3943 driver included.

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/led_lp3943
   :board: 96b_neonkey
   :goals: build
   :compact:

For flashing the application, refer to the Flashing section of the
:ref:`96b_neonkey` board documentation.

When you connect to the board's serial console, you should see the
following output in addition to the LED pattern:

.. code-block:: none

   ***** BOOTING ZEPHYR OS v1.11.99 *****
   [general] [INF] main: Found LED device LP3943
   [general] [INF] main: Displaying the pattern

References
**********

- LP3943: http://www.ti.com/lit/ds/snvs256d/snvs256d.pdf