zephyr

History

Erwan Gouriou bddb343b09 stm32: Remove redundant I2C variant Kconfig symbols definitions I2C_STM32_V1 and I2C_STM32_V2 are Kconfig symbols used to select STM32 I2C driver variant based on I2C IP available on a given STM32 SoC. Being SoC dependent, they are automatically selected in soc/ if CONFIG_I2C is set. Then there is no need to define them at board level, nor for a specific application like this is done in some sample or test applications. Remove these definitions when this is the case. Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>		2019-05-24 22:29:51 -04:00
..
boards	stm32: Remove redundant I2C variant Kconfig symbols definitions	2019-05-24 22:29:51 -04:00
src	led: lp3943: Remove dts_fixup.h	2019-01-31 09:09:36 -06:00
CMakeLists.txt	license: cleanup: add SPDX Apache-2.0 license identifier	2019-04-07 08:45:22 -04:00
prj.conf
README.rst
sample.yaml	samples: add test identifier	2019-03-29 17:44:11 -04:00

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