Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/
Find a file
Felipe Moura b8c5cf7357 drivers/sensors/lsm6ds3trc: remember last ODR across activations
Previously, activate() always fell back to a hardcoded ODR_52HZ (or the
other sub-sensor's rate, in FIFO mode) whenever a sub-sensor went from
disabled to enabled, discarding whatever rate the application had
explicitly requested via set_interval() before disabling it. An
application that only ever wants, say, 25Hz would see the sensor
restart at 52Hz on every re-activation, and in FIFO mode this fills the
FIFO faster than intended, defeating the point of choosing a lower ODR
for power savings.

Add last_odr, which -- unlike odr -- survives being disabled. activate()
now restores it on the next enable, only falling back to ODR_52HZ on a
sub-sensor's genuine first-ever activation.

Signed-off-by: Felipe Moura <moura.fmo@gmail.com>
2026-09-02 09:05:20 +08:00
.github .github/workflows/build.yml: bump nuttx-ntfc-testing to release-0.0.2 2026-09-01 17:45:05 +08:00
arch arch/arm/rtl8721f: add timer driver support 2026-09-01 17:41:14 +08:00
audio audio: limit the buffer count guard to shared ring requests 2026-08-05 07:58:53 +02:00
binfmt sched: add supplementary group IDs (setgroups/getgroups/initgroups) 2026-08-12 16:06:03 -03:00
boards arch/arm/rtl8721f: add timer driver support 2026-09-01 17:41:14 +08:00
cmake cmake: parse EXTRAFLAGS with separate_arguments. 2026-09-01 09:19:27 +08:00
crypto tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
Documentation include/nuttx/macro.h: Let FOREACH_ARG() paste the argument index 2026-09-01 17:55:52 -03:00
drivers drivers/sensors/lsm6ds3trc: remember last ODR across activations 2026-09-02 09:05:20 +08:00
dummy build: add initial cmake build system 2023-07-08 13:50:48 +08:00
fs fs: fix pre-existing nxstyle issues in touched files 2026-08-28 23:07:24 +08:00
graphics graphics/nxterm: consume SGR escape sequences 2026-08-23 10:46:02 +08:00
include include/nuttx/macro.h: Let FOREACH_ARG() paste the argument index 2026-09-01 17:55:52 -03:00
libs libs/libc/machine/arm: Fix the nxstyle errors in arch_elf.c. 2026-09-01 09:16:39 +08:00
mm cmake: Use NUTTX(_DIR/_BIN_DIR) instead CMAKE(_SRC_DIR/_BIN_DIR) 2026-08-09 11:13:08 -03:00
net net, arch: Fix nxstyle errors in files the CAN ioctl merge touches. 2026-09-01 17:40:47 +08:00
openamp cmake: Use NUTTX(_DIR/_BIN_DIR) instead CMAKE(_SRC_DIR/_BIN_DIR) 2026-08-09 11:13:08 -03:00
pass1 tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
sched sched/setparam: update sporadic parameters of the target task 2026-08-29 11:14:34 -03:00
syscall fs: rename PSEUDOFS_SOFTLINKS to FS_LINKS 2026-08-27 01:12:33 +08:00
tools tools/export: prefix each linker script in toolchain.cmake. 2026-09-01 17:41:42 +08:00
video video/videomode: Fix EDID parsing and formatting of video mode dumps 2026-08-29 11:09:11 -03:00
wireless wireless/bluetooth: fix inverted MTU cap in bt_conn_send() 2026-08-30 10:48:18 -03:00
.asf.yaml github: master branch protection tune. 2025-05-07 18:37:13 -05:00
.codespell-ignore-lines arch/arm: Reserve r10 via ARCHCFLAGS and hoist the PIC module flags. 2026-07-24 23:09:08 +08:00
.codespellrc Revert "zbus: Add linker support and documentation for the zbus port" 2026-08-30 10:45:19 -03:00
.editorconfig .editorconfig: fix character encoding property specification 2025-11-28 19:12:13 +08:00
.gitignore boards/risc-v/eic7700x: Adopt the common board layout. 2026-08-19 01:40:57 +08:00
.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
AUTHORS AUTHORS: add Jorge Guzman 2026-08-25 08:43:13 -04:00
CMakeLists.txt include/nuttx: Add link-time iterable sections infrastructure 2026-08-27 01:04:05 +08:00
CONTRIBUTING.md contributing: Add requirement for 'Assisted-by' commit field 2026-07-12 09:42:28 +08:00
INVIOLABLES.md
Kconfig include/nuttx: Add link-time iterable sections infrastructure 2026-08-27 01:04:05 +08:00
LICENSE libs/libdsp: Add Matrix operations 2026-07-11 14:55:59 -03:00
Makefile !boards: enforce secure ROMFS passwd and TEA key setup 2026-07-09 22:41:11 +08:00
NOTICE
README.md ci/testing: Add MemBrowse Integration 2026-06-18 12:07:41 -03:00
ReleaseNotes Documentation: move ReleaseNotes 2023-09-26 20:41:00 +08:00

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

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.