Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/
Find a file
Tiago Medicci Serrano fcb96babc5 risc-v/espressif/spi: Update common source code functions
Updates the common source code for the SPI peripheral used by
Espressif's RISC-Vs SoCs. This enables newer SoCs to be supported
in the future while maintaining backwards compatibility.

Signed-off-by: Tiago Medicci Serrano <tiago.medicci@espressif.com>
2025-10-21 01:03:36 +08:00
.github
arch risc-v/espressif/spi: Update common source code functions 2025-10-21 01:03:36 +08:00
audio
binfmt
boards risc-v/espressif/spi: Update common source code functions 2025-10-21 01:03:36 +08:00
cmake
crypto
Documentation
drivers sched/sched: Replace nxsched_alarm_tick_expiration() 2025-10-18 20:07:59 +08:00
dummy
fs sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
graphics sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
include sched/sched: Replace nxsched_alarm_tick_expiration() 2025-10-18 20:07:59 +08:00
libs
mm
net
openamp
pass1
sched sched/signal: use list_waitingforsignal() to access g_waitingforsignal 2025-10-20 11:24:25 -03:00
syscall
tools cmake: Remove unused BUILD_OOTCPP guard from configuration. 2025-10-17 17:06:46 -03:00
video
wireless sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
.asf.yaml
.codespell-ignore-lines
.codespellrc
.editorconfig
.gitignore
.gitmessage
.pre-commit-config.yaml
.yamllint
AUTHORS
CMakeLists.txt nuttx/cmake: Remove redundant logic in CMake scripts 2025-10-20 10:08:28 +08:00
CONTRIBUTING.md
INVIOLABLES.md
Kconfig
LICENSE
Makefile
NOTICE
README.md
ReleaseNotes

POSIX Badge License Issues Tracking Badge Contributors GitHub Build Badge Documentation Badge

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.