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Torsten Rasmussen ca0702283f cmake: remove CMake policy CMP0002 and CMP0116
The CMake policies CMP0002 and CMP0116 can now safely be removed.

Setting CMake minimum version to 3.20 ensures that policies are set to
NEW per default for those two policies:
> The cmake_minimum_required() command does more than report an error
> if a too-old version of CMake is used to build a project. It also sets
> all policies introduced in that CMake version or earlier to NEW
> behavior.

CMP0002 was introduced in CMake 2.6 and was set to NEW.

CMP0116 was introduced in CMake 3.20 and set to OLD because of:
> Use the old CMake behaviour until we are updating the CMake 3.20 as
> minimum required. This ensure that CMake >=3.20 will be consistent
> with older CMakes.
and can thus be removed as we are now having 3.20 as minimum required.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2021-12-17 14:24:02 +01:00
.buildkite ci: Update to Zephyr SDK 0.13.2 2021-11-25 06:58:45 -05:00
.github ci: doc-build: skip Kconfig docs build on pull requests 2021-12-13 19:34:59 -05:00
arch soc/intel_adsp: Unify Xtensa CPU reset between cores 2021-12-14 18:43:05 -06:00
boards boards: xtensa: esp_wrover_kit: board_init 2021-12-16 20:49:27 -05:00
cmake cmake: remove CMake policy CMP0002 and CMP0116 2021-12-17 14:24:02 +01:00
doc pm: device_runtime: suspend device on enable 2021-12-16 10:41:04 +01:00
drivers drivers/uart: stm32: don't call k_yield on poll_out 2021-12-16 20:42:00 -05:00
dts dts: arm: gigadevice: introduce dac for gd32 series soc 2021-12-16 10:13:56 +01:00
include devicetree: add DT_INST_PARENT helper 2021-12-16 11:10:01 -06:00
kernel kernel: add 'static' keyword to select routines 2021-12-13 17:21:58 -05:00
lib lib/os/heap: use BIT() and BIT_MASK() on bit fields 2021-12-13 17:16:07 -05:00
misc cmake: kconfig: fix issue if Kconfig symbol name contains lower case 2021-11-18 13:56:07 +01:00
modules modules: hal_nordic: Add CCA macros when nRF Radio Driver is enabled 2021-12-16 10:12:36 +01:00
samples samples: fat_fs: esp_wrover_kit: sdmmc support 2021-12-16 20:49:27 -05:00
scripts twister: do not use deprecated arguments to nrfprog 2021-12-15 14:09:49 -05:00
share cmake: check zephyr version if specified and ZEPHYR_BASE is set 2021-05-25 16:48:35 -05:00
soc soc/intel_adsp: cavs-link.ld: add *(.trace_ctx) sections 2021-12-16 09:40:39 -06:00
submanifests west.yml: allow users to easily add more modules 2021-10-07 13:45:42 +02:00
subsys pm: device_runtime: suspend device on enable 2021-12-16 10:41:04 +01:00
tests tests: lib: devicetree: api: test DT_INST_PARENT 2021-12-16 11:10:01 -06:00
.checkpatch.conf checkpatch: Ignore IS_ENABLED_CONFIG warnings 2021-10-18 08:28:01 -04:00
.clang-format clang-format: Change lines length limit from 80 to 100 2021-05-06 08:13:32 -05:00
.codecov.yml ci: add .codecov.yml for codecov.io configuration 2018-01-03 13:12:03 -05:00
.editorconfig editorconfig: indent Kconfig files with tabs 2020-07-08 21:30:38 -04:00
.gitattributes gitattributes: consider SVG files generated 2021-10-14 12:42:44 -04:00
.gitignore gitignore: ignore macos DS_Store files 2021-11-03 16:14:20 -04:00
.gitlint gitlint: Make commit message line size be compatible with checkpatch.pl 2021-12-01 09:37:11 +01:00
.mailmap mailmap: update mailmap file with some stray emails 2021-06-17 14:15:41 -04:00
.uncrustify.cfg uncrustify: force a single EOF newline 2021-11-03 16:14:20 -04:00
CMakeLists.txt scripts: support propagating workspace status to zephyr revision 2021-12-14 12:32:10 +01:00
CODE_OF_CONDUCT.md coc: move to markdown format 2019-01-24 15:37:15 -05:00
CODEOWNERS CODEOWNER: Add LingaoM for bluetooth mesh stack 2021-12-16 11:02:45 -05:00
CONTRIBUTING.rst doc: Fixed a link in CONTRIBUTING.rst 2019-02-28 12:46:04 -08:00
Kconfig kconfig: Clean up header comments and make them consistent 2019-11-04 17:31:27 -05:00
Kconfig.zephyr scripts: support propagating workspace status to zephyr revision 2021-12-14 12:32:10 +01:00
LICENSE
MAINTAINERS.yml MAINTAINERS: Add files-exclude for Bluetooth sub-subsystems 2021-12-15 14:46:32 -06:00
README.rst doc: replace buildkite with github actions 2021-11-24 12:37:30 -05:00
VERSION VERSION: bump main branch to 2.7.99 2021-09-30 06:36:53 -04:00
version.h.in cmake: explain BUILD_VERSION and KERNEL_VERSION_* 2019-05-09 11:52:05 +02:00
west.yml modules: hal_nordic: Update nrfx to version 2.7.0 2021-12-17 13:04:35 +01:00
zephyr-env.cmd scripts: remove west from scripts/ 2019-01-29 10:15:01 +01:00
zephyr-env.sh zephyr_env.sh: Remove semicolons at ends of lines 2019-12-10 14:34:46 -08:00

.. raw:: html

   <a href="https://www.zephyrproject.org">
     <p align="center">
       <img src="doc/_static/images/logo-readme.png">
     </p>
   </a>

   <a href="https://bestpractices.coreinfrastructure.org/projects/74"><img
   src="https://bestpractices.coreinfrastructure.org/projects/74/badge"></a>
   <a
   href="https://github.com/zephyrproject-rtos/zephyr/actions/workflows/twister.yaml?query=branch%3Amain">
   <img
   src="https://github.com/zephyrproject-rtos/zephyr/actions/workflows/twister.yaml/badge.svg?event=push"></a>


The Zephyr Project is a scalable real-time operating system (RTOS) supporting
multiple hardware architectures, optimized for resource constrained devices,
and built with security in mind.

The Zephyr OS is based on a small-footprint kernel designed for use on
resource-constrained systems: from simple embedded environmental sensors and
LED wearables to sophisticated smart watches and IoT wireless gateways.

The Zephyr kernel supports multiple architectures, including ARM Cortex-M,
Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V, and a large number of
`supported boards`_.

.. below included in doc/introduction/introduction.rst


Getting Started
***************

Welcome to Zephyr! See the `Introduction to Zephyr`_ for a high-level overview,
and the documentation's `Getting Started Guide`_ to start developing.

.. start_include_here

Community Support
*****************

Community support is provided via mailing lists and Discord; see the Resources
below for details.

.. _project-resources:

Resources
*********

Here's a quick summary of resources to help you find your way around:

* **Help**: `Asking for Help Tips`_
* **Documentation**: http://docs.zephyrproject.org (`Getting Started Guide`_)
* **Source Code**: https://github.com/zephyrproject-rtos/zephyr is the main
  repository; https://elixir.bootlin.com/zephyr/latest/source contains a
  searchable index
* **Releases**: https://github.com/zephyrproject-rtos/zephyr/releases
* **Samples and example code**: see `Sample and Demo Code Examples`_
* **Mailing Lists**: users@lists.zephyrproject.org and
  devel@lists.zephyrproject.org are the main user and developer mailing lists,
  respectively. You can join the developer's list and search its archives at
  `Zephyr Development mailing list`_. The other `Zephyr mailing list
  subgroups`_ have their own archives and sign-up pages.
* **Nightly CI Build Status**: https://lists.zephyrproject.org/g/builds
  The builds@lists.zephyrproject.org mailing list archives the CI nightly build results.
* **Chat**: Real-time chat happens in Zephyr's Discord Server. Use
  this `Discord Invite`_ to register.
* **Contributing**: see the `Contribution Guide`_
* **Wiki**: `Zephyr GitHub wiki`_
* **Issues**: https://github.com/zephyrproject-rtos/zephyr/issues
* **Security Issues**: Email vulnerabilities@zephyrproject.org to report
  security issues; also see our `Security`_ documentation. Security issues are
  tracked separately at https://zephyrprojectsec.atlassian.net.
* **Zephyr Project Website**: https://zephyrproject.org

.. _Discord Invite: https://chat.zephyrproject.org
.. _supported boards: http://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: http://docs.zephyrproject.org
.. _Introduction to Zephyr: http://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: http://docs.zephyrproject.org/latest/getting_started/index.html
.. _Contribution Guide: http://docs.zephyrproject.org/latest/contribute/index.html
.. _Zephyr GitHub wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _Zephyr Development mailing list: https://lists.zephyrproject.org/g/devel
.. _Zephyr mailing list subgroups: https://lists.zephyrproject.org/g/main/subgroups
.. _Sample and Demo Code Examples: http://docs.zephyrproject.org/latest/samples/index.html
.. _Security: http://docs.zephyrproject.org/latest/security/index.html
.. _Asking for Help Tips: https://docs.zephyrproject.org/latest/getting_started/index.html#asking-for-help