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Jun Lin 2bda7b87ee driver: timer: npcx: bypass timer counter reading issue
Originally, when the timer's source clock is 32.768 kHz, the timer driver
uses two consecutive reads to ensure the timer reading is correct.
However, it is not robust enough due to an asynchronous timing issue in
the chip. The workaround is to add at least two NOPs between the
LDR and CMP instructions. This commit implements the workaround in the
assembly code to ensure it is not affected by the compiler toolchain
or optimization flags.

Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
2024-12-16 15:55:16 +01:00
.github ci: bsim tests: Fix paths for triggers 2024-12-12 16:20:02 +01:00
arch arch: arm: cortex_m: Use Thumb-1 compatible 'mov reg, imm' mnemonic 2024-12-13 11:35:06 +01:00
boards boards: snps: nsim: align EM7D_v22 platform 2024-12-16 13:10:22 +01:00
cmake cmake: scripts: add 'winpty' support when available 2024-12-12 20:00:00 +01:00
doc twister: reports: Long testcase.classname XML properties 2024-12-16 08:35:34 +01:00
drivers driver: timer: npcx: bypass timer counter reading issue 2024-12-16 15:55:16 +01:00
dts dts: arm/nxp: Add usb nodes to NXP MCXA156 dtsi file 2024-12-16 10:52:51 +01:00
include/zephyr net: wifi: shell: add parameters for twt setup 2024-12-16 13:10:02 +01:00
kernel kernel: k_msgq_put should trigger reschedule 2024-12-14 01:04:43 +01:00
lib posix: pthread: implement non-standard try-join and timed-join 2024-12-15 19:24:33 +01:00
misc
modules net: openthread: Adding diag transmit command. 2024-12-16 15:55:04 +01:00
samples samples: led_strip: Adding QT Py ESP32-S3 support. 2024-12-16 13:10:10 +01:00
scripts kconfig: Add dt_compat_any_not_has_prop function 2024-12-16 13:09:14 +01:00
share sysbuild: Add missing option for MCUboot encryption support 2024-10-30 08:54:33 -05:00
snippets Bluetooth: Controller: Replace BT_CTLR with HAS_BT_CTLR 2024-12-03 10:16:44 +01:00
soc soc: rw61x: enable IEEE802154 for NXP_FW_LOADER and NXP_RF_IMU 2024-12-13 03:02:13 +01:00
submanifests manifest: sof: sync with upstream project 2024-12-05 22:08:15 +01:00
subsys net: wifi: shell: fix twt setup quick failed issue 2024-12-16 13:10:02 +01:00
tests tests: drivers: build_all: gpio: Test handling plural "compatible"s 2024-12-16 13:09:38 +01:00
.checkpatch.conf
.clang-format clang-format: add entry for SYS_SEM_LOCK() 2024-10-03 17:07:05 +01:00
.codechecker.yml tests: Add a CodeChecker config file 2024-09-12 10:04:05 +02:00
.codecov.yml
.editorconfig
.gitattributes
.gitignore scripts: ci: check_compliance: Add python lint/format check 2024-11-19 18:36:54 -05:00
.gitlint
.mailmap mailmap: missing entry for Manuel Argüelles 2024-08-05 18:36:50 -04:00
.ruff-excludes.toml scripts: Update and lock ruff 2024-12-03 23:30:00 +00:00
.ruff.toml scripts: Update and lock ruff 2024-12-03 23:30:00 +00:00
.yamllint
CMakeLists.txt llext: fix link order for weak syscall symbols 2024-12-10 20:38:48 +01:00
CODE_OF_CONDUCT.md
CONTRIBUTING.rst
Kconfig
Kconfig.constants
Kconfig.zephyr cmake: deprecate BUILD_NO_GAP_FILL and introduce type specific gap fill 2024-12-02 11:14:09 +01:00
LICENSE
MAINTAINERS.yml manifest: add cmsis_6 2024-12-16 10:53:49 +01:00
README.rst README: drop the stray link underscores between badges 2024-09-26 15:20:39 +01:00
SDK_VERSION SDK_VERSION: Use Zephyr SDK 0.17.0 2024-10-22 19:04:37 -04:00
VERSION release: Zephyr v4.0.99 2024-11-16 13:40:34 +01:00
version.h.in
west.yml manifest: add cmsis_6 2024-12-16 10:53:49 +01:00
zephyr-env.cmd
zephyr-env.sh

.. 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://scorecard.dev/viewer/?uri=github.com/zephyrproject-rtos/zephyr"><img src="https://api.securityscorecards.dev/projects/github.com/zephyrproject-rtos/zephyr/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:

Getting Started
---------------

  | 📖 `Zephyr Documentation`_
  | 🚀 `Getting Started Guide`_
  | 🙋🏽 `Tips when asking for help`_
  | 💻 `Code samples`_

Code and Development
--------------------

  | 🌐 `Source Code Repository`_
  | 📦 `Releases`_
  | 🤝 `Contribution Guide`_

Community and Support
---------------------

  | 💬 `Discord Server`_ for real-time community discussions
  | 📧 `User mailing list (users@lists.zephyrproject.org)`_
  | 📧 `Developer mailing list (devel@lists.zephyrproject.org)`_
  | 📬 `Other project mailing lists`_
  | 📚 `Project Wiki`_

Issue Tracking and Security
---------------------------

  | 🐛 `GitHub Issues`_
  | 🔒 `Security documentation`_
  | 🛡️ `Security Advisories Repository`_
  | ⚠️ Report security vulnerabilities at vulnerabilities@zephyrproject.org

Additional Resources
--------------------
  | 🌐 `Zephyr Project Website`_
  | 📺 `Zephyr Tech Talks`_

.. _Zephyr Project Website: https://www.zephyrproject.org
.. _Discord Server: https://chat.zephyrproject.org
.. _supported boards: https://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: https://docs.zephyrproject.org
.. _Introduction to Zephyr: https://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: https://docs.zephyrproject.org/latest/develop/getting_started/index.html
.. _Contribution Guide: https://docs.zephyrproject.org/latest/contribute/index.html
.. _Source Code Repository: https://github.com/zephyrproject-rtos/zephyr
.. _GitHub Issues: https://github.com/zephyrproject-rtos/zephyr/issues
.. _Releases: https://github.com/zephyrproject-rtos/zephyr/releases
.. _Project Wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _User mailing list (users@lists.zephyrproject.org): https://lists.zephyrproject.org/g/users
.. _Developer mailing list (devel@lists.zephyrproject.org): https://lists.zephyrproject.org/g/devel
.. _Other project mailing lists: https://lists.zephyrproject.org/g/main/subgroups
.. _Code samples: https://docs.zephyrproject.org/latest/samples/index.html
.. _Security documentation: https://docs.zephyrproject.org/latest/security/index.html
.. _Security Advisories Repository: https://github.com/zephyrproject-rtos/zephyr/security
.. _Tips when asking for help: https://docs.zephyrproject.org/latest/develop/getting_started/index.html#asking-for-help
.. _Zephyr Tech Talks: https://www.zephyrproject.org/tech-talks