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Martí Bolívar 0c29e07e30 devicetree: better DT_PROP_BY_IDX()/DT_FOREACH_PROP_ELEM() support
Support use of these macros with properties of type phandle and
string by allowing iterating over:

- a phandle as if it were a phandles of length 1, for convenience and
  consistency with our ability to take its length (and getting 1)

- the non-null characters in a string: we exclude the null for
  consistency with the return value of DT_PROP_LEN() on string
  properties, which, like strlen(), does not include the null

With this and a previous patch expanding the usage of DT_PROP_LEN(),
there is now a relationship between being able to take a property's
logical length with DT_PROP_LEN() and being able to iterate over its
logical elements with DT_FOREACH_PROP_ELEM(). Explain this in the
documentation.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-05-16 18:14:26 +02:00
.github ci: Use Zephyr SDK 0.16.1 2023-05-16 01:50:00 +09:00
arch arch: xtensa: Remove unecessary logic in backtrace 2023-05-12 18:31:13 -04:00
boards Board: nsim_hs: fix nsim dccm size property 2023-05-16 12:10:58 -04:00
cmake cmake: extensions: Fix missing quotes for zephyr_get function 2023-05-15 09:17:01 +02:00
doc doc: Update to Zephyr SDK 0.16.1 2023-05-16 01:50:00 +09:00
drivers drivers: uart_mcux: Do not enable and disable the transmitter 2023-05-16 12:08:32 +02:00
dts drivers: crypto: MEC172x crypto driver supporting hash 2023-05-16 12:07:24 +02:00
include/zephyr devicetree: better DT_PROP_BY_IDX()/DT_FOREACH_PROP_ELEM() support 2023-05-16 18:14:26 +02:00
kernel kernel: pin _kernel variable in case of paging 2023-05-16 11:41:11 -04:00
lib lib: cpp: Do not define __cxa_atexit() for the posix arch 2023-05-12 18:31:44 -04:00
misc misc: generated: update configs.c template with <zephyr/...> prefix 2022-05-09 12:45:29 -04:00
modules net: openthread: Remove not needed OPENTHREAD_EXCLUDE_TCPLP_LIB 2023-05-11 12:10:25 +02:00
samples tests: samples: Resolve duplicates in names. 2023-05-16 06:21:25 -04:00
scripts devicetree: better DT_PROP_BY_IDX()/DT_FOREACH_PROP_ELEM() support 2023-05-16 18:14:26 +02:00
share sysbuild: Add SB_OVERLAY_CONFIG 2023-05-05 09:42:10 +02:00
snippets snippets: add cdc-acm-console 2023-03-26 16:12:41 +02:00
soc soc: xtensa: Lower HW_STATE_CHECK_DELAY 2023-05-16 06:12:27 -04:00
submanifests west.yml: allow users to easily add more modules 2021-10-07 13:45:42 +02:00
subsys net: wifi: Fix typo in event 2023-05-16 11:41:43 -04:00
tests devicetree: support DT_PROP_LEN() on phandle and string 2023-05-16 18:14:26 +02:00
.checkpatch.conf checkpatch: Remove ext/ from excludes 2022-11-30 12:06:55 -05:00
.clang-format clang-format: UseTab use ForContinuationAndIndentation 2023-05-05 11:06:54 -04:00
.codecov.yml yamllint: fix all yamllint comments errors 2023-01-04 01:16:45 +09:00
.editorconfig editorconfig: Improve verbosity 2022-04-28 08:55:39 -04:00
.gitattributes gitattributes: consider SVG files generated 2021-10-14 12:42:44 -04:00
.gitignore tests bsim/net: Separate bsim networking and bluetooth tests. 2023-04-12 22:42:03 +09:00
.gitlint gitlint: Stop ignoring merge, revert, fixup and squash commits 2022-01-10 08:13:36 -05:00
.mailmap mailmap: sort alphabetically 2023-05-15 13:23:32 -04:00
.yamllint scripts: compliance: add support for YAMLLint 2023-01-04 17:29:23 +01:00
CMakeLists.txt compiler: add CONFIG_COMPILER_TRACK_MACRO_EXPANSION 2023-05-05 12:08:48 +02:00
CODE_OF_CONDUCT.md
CODEOWNERS CODEOWNERS: update ESP32 source files ownership 2023-05-16 12:07:48 +02:00
CONTRIBUTING.rst
Kconfig kconfig: Clean up header comments and make them consistent 2019-11-04 17:31:27 -05:00
Kconfig.mcuboot mcuboot: Kconfig options allowing to inform on MCUboot config 2023-05-12 10:00:23 +02:00
Kconfig.zephyr kconfig: Separate MCUboot options to Kconfig.mcuboot 2023-05-12 10:00:23 +02:00
LICENSE
MAINTAINERS.yml MAINTAINERS: Make nordicjm maintainer for MCUmgr subsystem 2023-05-12 09:59:10 +02:00
README.rst readme: Add support for light/dark modes in the logo 2022-11-18 08:58:59 +01:00
VERSION VERSION: Bump to 3.3.99 2023-02-19 20:34:26 +09:00
version.h.in cmake: version.h generation performed at build time 2022-02-08 07:50:24 -05:00
west.yml west.yml: update hal_xtensa for intel_adsp_ace15_mtpm 2023-05-16 01:50:00 +09:00
zephyr-env.cmd
zephyr-env.sh everywhere: fix typos 2022-03-18 13:24:08 -04:00

.. raw:: html

   <a href="https://www.zephyrproject.org">
     <p align="center">
       <picture>
         <source media="(prefers-color-scheme: dark)" srcset="doc/_static/images/logo-readme-dark.svg">
         <source media="(prefers-color-scheme: light)" srcset="doc/_static/images/logo-readme-light.svg">
         <img src="doc/_static/images/logo-readme-light.svg">
       </picture>
     </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-A,
Cortex-R, Cortex-M), Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V,
SPARC, MIPS, 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/develop/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/develop/getting_started/index.html#asking-for-help