zephyr/samples/basic/blinky
David B. Kinder ac74d8b652 license: Replace Apache boilerplate with SPDX tag
Replace the existing Apache 2.0 boilerplate header with an SPDX tag
throughout the zephyr code tree. This patch was generated via a
script run over the master branch.

Also updated doc/porting/application.rst that had a dependency on
line numbers in a literal include.

Manually updated subsys/logging/sys_log.c that had a malformed
header in the original file.  Also cleanup several cases that already
had a SPDX tag and we either got a duplicate or missed updating.

Jira: ZEP-1457

Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-19 03:50:58 +00:00
..
src license: Replace Apache boilerplate with SPDX tag 2017-01-19 03:50:58 +00:00
Makefile samples: tests: remove obsolete KERNEL_TYPE and kernel variables 2016-11-04 15:47:25 -04:00
README.rst samples: minor documentation tweaks 2017-01-06 18:49:24 -05:00
prj.conf kernel: remove dependency on CONFIG_NANO_TIMERS/TIMEOUTS 2017-01-08 18:09:52 +00:00

README.rst

Blinky Application
##################

Overview
========

The Blinky example shows how to configure GPIO pins as outputs which can also be
used to drive LEDs on the hardware usually delivered as "User LEDs" on many of
the supported boards in Zephyr.

Requirements
============

The demo assumes that an LED is connected to one of GPIO lines. The
sample code is configured to work on boards with user defined buttons and that
have defined the LED0\_* variables in :file:`board.h`.

The :file:`board.h` must define the following variables:

- LED0_GPIO_PORT
- LED0_GPIO_PIN


Building and Running
====================

This samples does not output anything to the console.  It can be built and
flashed to a board as follows:

.. code-block:: console

   $ cd samples/basic/blinky
   $ make BOARD=arduino_101
   $ make BOARD=arduino_101 flash

After flashing the image to the board, the user LED on the board should start to
blink.