Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/
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Royyan Zahir 5b2311ef2d boards/arm/imxrt: add the Holybro Pixhawk 6X-RT
A MIMXRT1176 flight controller built to the Pixhawk FMUv6X-RT standard, so
the port also covers the NXP MR-VMU-RT1176.

Board data comes from PX4, which already carries it as a NuttX board config:
the clock tree, the LPUART1 pinmux, and the Macronix octal flash
configuration block the boot ROM reads at offset 0x400.

The board ships with the PX4 bootloader in the first 128 KB of QSPI, so the
image links at 0x30020000 and is loaded by it rather than written to the
flash base. The console is CDC/ACM as on teensy-4.x, so a USB cable is the
only thing needed to run NuttX here.

Signed-off-by: Royyan Zahir <royzah@gmail.com>
2026-09-23 18:51:23 -03:00
.github build(deps): bump docker/setup-buildx-action from 4.3.0 to 4.4.1 2026-09-21 16:28:50 +08:00
arch espressif/esp_pm.c: restore GPIO config after using it as a wake source 2026-09-23 08:36:17 -03:00
audio audio: limit the buffer count guard to shared ring requests 2026-08-05 07:58:53 +02:00
binfmt libs/libc/elf, binfmt: Describe the GOT by base and size, not by index. 2026-09-08 16:31:16 -03:00
boards boards/arm/imxrt: add the Holybro Pixhawk 6X-RT 2026-09-23 18:51:23 -03:00
cmake cmake: fix undefined function name in parse args error messages 2026-09-11 21:15:22 +08:00
crypto crypto: fix chacha constants under GCC 15. 2026-09-20 08:22:11 -03:00
Documentation boards/arm/imxrt: add the Holybro Pixhawk 6X-RT 2026-09-23 18:51:23 -03:00
drivers drivers/lsm6ds3trc_uorb.c: keep the reset comment board/arch-agnostic 2026-09-23 08:22:52 +02:00
dummy
fs docs: document chroot jail root 2026-09-20 22:27:38 +08:00
graphics graphics/nxterm: consume SGR escape sequences 2026-08-23 10:46:02 +08:00
include arch/arm/stm32h7: do not log the frames of packet sockets as unknown. 2026-09-23 08:21:59 +02:00
libs libc/stdio: allocate a buffer in getdelim() when *lineptr is NULL 2026-09-23 12:52:09 +08:00
mm mm/iob: fix CONFIG_NET_TIMESTAMPING typo in iob_alloc 2026-09-19 16:36:47 -03:00
net net/pkt: remove unused variable conn in append_timestamping 2026-09-19 18:32:45 -03:00
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/module: Increase /proc/modules line buffer. 2026-09-22 13:27:42 +08:00
syscall fs: add chroot() syscall 2026-09-20 22:27:38 +08:00
tools tools/ci: Fix esptool issue 2026-09-23 08:59:07 -03:00
video video/videomode: Fix EDID parsing and formatting of video mode dumps 2026-08-29 11:09:11 -03:00
wireless wireless/bluetooth: Validate event length before parsing HCI events. 2026-09-23 08:58:44 -03:00
.asf.yaml
.codespell-ignore-lines arch/arm: Reserve r10 via ARCHCFLAGS and hoist the PIC module flags. 2026-07-24 23:09:08 +08:00
.codespellrc zbus: Add linker support and documentation for the zbus port 2026-09-21 08:40:14 -03:00
.editorconfig
.gitignore boards/risc-v/eic7700x: Adopt the common board layout. 2026-08-19 01:40:57 +08:00
.gitmessage
.pre-commit-config.yaml
.yamllint
AUTHORS AUTHORS: add Jorge Guzman 2026-08-25 08:43:13 -04:00
CMakeLists.txt cmake: reconfigure when .config changes 2026-09-14 18:40:45 -03:00
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

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.