zephyr

History

Erwan Gouriou bb7d8261d7 samples/basic: Update readme for blinky/button/disco blinky/button and disco samples are now using definitions generated from boards dts files. Update samples README files accordingly. Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>		2018-12-26 09:46:59 -05:00
..
src	samples: blinky: cleanup to use just DT and remove board.h	2018-11-09 11:53:18 -05:00
CMakeLists.txt	samples, tests: Use semi-accurate project names	2018-10-27 21:31:25 -04:00
prj.conf	kernel: remove dependency on CONFIG_NANO_TIMERS/TIMEOUTS	2017-01-08 18:09:52 +00:00
README.rst	samples/basic: Update readme for blinky/button/disco	2018-12-26 09:46:59 -05:00
sample.yaml	samples: basic: remove whitelisting and use DT filters	2018-12-11 13:13:26 -06:00

README.rst

.. _blinky-sample:

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 that have defined the led0
alias in their board device tree description file. Doing so will generate
these variables:

- LED0_GPIO_CONTROLLER
- 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:

.. zephyr-app-commands::
   :zephyr-app: samples/basic/blinky
   :board: arduino_101
   :goals: build flash
   :compact:

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