Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
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Daniel DeGrasse 3e8bbee9ed sd: Add common SD initialization code
All SD cards require SD CMD0 (reset) and CMD8 (send IF cond) at boot.
Add this portion of the initialization flow to SD subsystem, as well as
query command to check if card is SDIO.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
2022-04-29 14:21:36 -05:00
.github ci: Update to Zephyr SDK 0.14.1 2022-04-19 09:15:06 -04:00
arch riscv: pmp: work around a QEMU bug 2022-04-29 15:30:00 +02:00
boards boards: mimxrt1064: Enabled new SDHC driver 2022-04-29 14:21:36 -05:00
cmake cmake: Correct PATHS usage 2022-04-29 08:57:21 +02:00
doc sparse: add sparse support 2022-04-28 08:54:21 -04:00
drivers drivers: sdhc: Implement NXP USDHC SDHC driver 2022-04-29 14:21:36 -05:00
dts dts: sdhc: Add SDHC DTS bindings 2022-04-29 14:21:36 -05:00
include/zephyr include: sd: Add SD subsystem header files 2022-04-29 14:21:36 -05:00
kernel kernel: mutex: remove unnecessary schedule locking 2022-04-20 21:03:59 -04:00
lib sparse: fix all errors 2022-04-28 08:54:21 -04:00
misc cmake: only write devicetree files when there are changes. 2022-02-11 15:47:09 +01:00
modules modules: zcbor: kconfig: Disallow ZCBOR_VERBOSE with MINIMAL_LIBC 2022-04-28 16:18:28 +02:00
samples samples: tmf: psa: Increase timeout for psa_protected_storage_test 2022-04-29 16:22:32 +02:00
scripts scripts: gitlint: block Change-Id tags in commit message 2022-04-20 20:59:33 -04:00
share cmake: zephyr-package: add message mode 2022-03-23 13:24:41 +01:00
soc boards: mimxrt1064: Enabled new SDHC driver 2022-04-29 14:21:36 -05:00
submanifests
subsys sd: Add common SD initialization code 2022-04-29 14:21:36 -05:00
tests tests: sdhc: Add SD host controller driver test 2022-04-29 14:21:36 -05:00
.checkpatch.conf
.clang-format
.codecov.yml
.editorconfig editorconfig: Improve verbosity 2022-04-28 08:55:39 -04:00
.gitattributes
.gitignore gitignore: add .clangd to the ignore list 2022-04-24 19:47:40 +02:00
.gitlint
.mailmap
.uncrustify.cfg
CMakeLists.txt sparse: add sparse support 2022-04-28 08:54:21 -04:00
CODEOWNERS sd: Add common SD initialization code 2022-04-29 14:21:36 -05:00
CODE_OF_CONDUCT.md
CONTRIBUTING.rst
Kconfig
Kconfig.zephyr build: make non zephyr/ include prefix configurable 2022-04-08 19:03:32 +02:00
LICENSE
MAINTAINERS.yml MAINTAINERS: Make myself the disk subsystem maintainer 2022-04-29 11:24:35 -04:00
README.rst readme: make README logo dark-mode aware 2022-02-15 19:47:48 +01:00
VERSION VERSION: bump patchlevel to 99 2022-02-21 19:05:46 -05:00
version.h.in
west.yml pm: policy: Consider substates for state lock functions 2022-04-28 16:32:23 +02:00
zephyr-env.cmd
zephyr-env.sh everywhere: fix typos 2022-03-18 13:24:08 -04:00

README.rst

.. raw:: html

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