Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/
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Alin Jerpelea 54b5a8f2c3 LICENSE: update NuttX-PublicDomain SPDX identifier
According to the feedback from SPDX community we should use
LicenseRef-NuttX-PublicDomain because NuttX-PublicDomain
is not a valid SPDX id, so it will fail tests for SPDX spec compliance.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2025-12-26 19:45:34 +08:00
.github workflows/build.yml: fix fatal: write error: No space left on device 2025-12-22 21:27:50 +08:00
arch sim/spi: delete invaild cs change with ioctl transfer 2025-12-23 10:27:30 +08:00
audio fs/file: unify prefix about file_xxx api, like file_open, file_ioctl 2025-06-12 18:12:42 +08:00
binfmt binfmt/elf: fix issue of file not closing after being opened. 2025-12-23 10:29:34 +08:00
boards boards/nucleo-g431rb/qenco: reduce FLASH 2025-12-23 10:24:50 +08:00
cmake cmake: Improve nuttx_generate_kconfig() 2025-12-02 02:45:36 +08:00
crypto LICENSE: update NuttX-PublicDomain SPDX identifier 2025-12-26 19:45:34 +08:00
Documentation Documentation: add NuttX-12.12.0 release notes 2025-12-23 19:32:55 +08:00
drivers drivers/lcd/st7789.c: fix byte order in st7789_fill for 3 wires 2025-12-23 10:49:37 +08:00
dummy build: add initial cmake build system 2023-07-08 13:50:48 +08:00
fs tmpfs:fix memoryleak of tmpfs_opendir 2025-12-23 09:25:35 -03:00
graphics sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
include LICENSE: update NuttX-PublicDomain SPDX identifier 2025-12-26 19:45:34 +08:00
libs libs/libm: fix typo in Kconfig 2025-12-23 10:30:05 +08:00
mm mempool:fix bug, Misjudged the condition of interrupt memory release 2025-12-23 10:26:05 +08:00
net icmp/icmpv6: fix the level parameter type 2025-12-23 10:31:02 +08:00
openamp sched/clock: remove return value of clock_systime_timespec() 2025-10-10 23:15:27 +08:00
pass1 Revert "build depend:Revert Make.dep intermediate ddc file" 2024-09-15 19:29:47 +08:00
sched sched/clock: Remove unnecessary preprocessor definition 2025-12-23 10:29:13 +08:00
syscall sched/gettid: Move thread ID to TLS 2025-04-08 22:53:10 +08:00
tools ci/platforms: necessary changes for macos-15-intel and macos-14 Apple Silicon 2025-11-28 11:04:21 +08:00
video Revert "build depend:Revert Make.dep intermediate ddc file" 2024-09-15 19:29:47 +08:00
wireless sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
.asf.yaml github: master branch protection tune. 2025-05-07 18:37:13 -05:00
.codespell-ignore-lines usbhost: cdcacm exit wq after copy all received data 2025-12-23 10:29:26 +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 Simone Falsetti 2025-07-15 15:12:44 -03:00
CMakeLists.txt nuttx/cmake: Remove redundant logic in CMake scripts 2025-10-20 10:08:28 +08:00
CONTRIBUTING.md style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
INVIOLABLES.md
Kconfig docs/config: Wrong term. 2025-10-23 16:46:31 +08:00
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 Gathering community recommendations 2023-10-28 13:55:56 +08:00
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.