Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/
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muyangren eea9d15b41 docs: Fix typos, formatting, and numbering in README.md and CONTRIBUTING.md.
Fix multiple documentation issues in README.md and CONTRIBUTING.md:
* README.md: Merge multi-line badge markdown into single lines for
  License and Contributors badges to follow standard markdown format.
* CONTRIBUTING.md: Remove extra space in Inviolable Principles link URL.
* CONTRIBUTING.md: Fix duplicate numbering in section 1.17 Merge rules
  (two items numbered 3, renumbered to 3, 4, 5).
* CONTRIBUTING.md: Fix typo in section 2.2 commit template example,
  "different thing" to "different things" (missing plural).

Signed-off-by: aiduxiaoxiong <aiduxiaoxiong@users.noreply.github.com>
2026-03-23 12:05:24 +01:00
.github arch/risc-v/k210: Remove QEMU support 2026-03-23 14:25:29 +08:00
arch style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
audio Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
binfmt Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
boards style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
cmake style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
crypto Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
Documentation style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
drivers style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
dummy build: add initial cmake build system 2023-07-08 13:50:48 +08:00
fs style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
graphics style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
include style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
libs style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
mm mm: Fix Kconfig style 2026-03-12 09:08:18 +08:00
net style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
openamp openamp: add patch for VIRTIO_RPMSG_F_BUFADDR buffer address support 2026-03-05 12:39:13 +08:00
pass1 Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
sched style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
syscall Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
tools style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
video Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
wireless style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
.asf.yaml github: master branch protection tune. 2025-05-07 18:37:13 -05:00
.codespell-ignore-lines net/icmpv6: replace net_lock with conn_lock and conn_lock_dev 2025-12-29 09:42:18 +08:00
.codespellrc codespellrc: add ist to ignorelist 2025-10-14 17:42:01 +08:00
.editorconfig .editorconfig: fix character encoding property specification 2025-11-28 19:12:13 +08:00
.gitignore gitignore: add more vim swap files 2025-06-18 15:44:51 -04:00
.gitmessage docs/contributing: Add a commit message template 2025-06-03 17:33:24 +08:00
.pre-commit-config.yaml pre-commit: enable codespell checks 2025-05-05 12:34:39 +08:00
.yamllint feat: add a GitHub action to lint the YAML files 2020-12-15 09:52:04 -06:00
AUTHORS AUTHORS: add Donny Jiuzhu 2026-02-25 10:17:40 +01:00
CMakeLists.txt cmake: Enhance .config handling and comparison logic 2026-02-26 09:46:02 -03:00
CONTRIBUTING.md docs: Fix typos, formatting, and numbering in README.md and CONTRIBUTING.md. 2026-03-23 12:05:24 +01:00
INVIOLABLES.md INVIOLABLES.md: Fix a simple alignment and change occurrences of Nuttx 2020-09-03 01:33:05 +08:00
Kconfig tools/stackusage.py: use toolchain binaries instead of Python libraries 2026-03-17 11:26:44 -03:00
LICENSE style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
Makefile tools: migrate to SPDX identifier 2024-09-10 23:11:11 +08:00
NOTICE Remove the double blank line from source files 2022-02-20 20:10:14 +01:00
README.md docs: Fix typos, formatting, and numbering in README.md and CONTRIBUTING.md. 2026-03-23 12:05:24 +01:00
ReleaseNotes Documentation: move ReleaseNotes 2023-09-26 20:41:00 +08:00

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Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).

For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.

Getting Started

First time on NuttX? Read the Getting Started guide! If you don't have a board available, NuttX has its own simulator that you can run on terminal.

Documentation

You can find the current NuttX documentation on the Documentation Page.

Alternatively, you can build the documentation yourself by following the Documentation Build Instructions.

The old NuttX documentation is still available in the Apache wiki.

Supported Boards

NuttX supports a wide variety of platforms. See the full list on the Supported Platforms page.

Contributing

If you wish to contribute to the NuttX project, read the Contributing guidelines for information on Git usage, coding standard, workflow and the NuttX principles.

License

The code in this repository is under either the Apache 2 license, or a license compatible with the Apache 2 license. See the License Page for more information.