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buxiasen cdbe91aeb9 armv7a: rename and implement va2pa & pa2va
Notice: the up_addrenv_pa_to_va is not correct, it will be complex if we
search all address to lookup all virtual address according to physical
address.
Use up_addrenv_x method as common interface across va & pa

Signed-off-by: buxiasen <buxiasen@xiaomi.com>
2025-05-12 15:01:37 +08:00
.github ci: enable spelling checks (via codespell) 2025-05-05 12:34:39 +08:00
arch armv7a: rename and implement va2pa & pa2va 2025-05-12 15:01:37 +08:00
audio audio/composite: merge composite instance allocate to one times 2025-03-17 10:26:54 +01:00
binfmt libc/elf: rename modlib to libelf 2025-04-11 09:43:22 +08:00
boards boards/xtensa: Add SDM peripheral board layer support for esp[-|-s2|-s3] 2025-05-09 19:20:47 +08:00
cmake tools: Update Unix.mk and savedefconfig.cmake for CONFIG_ARCH_BOARD_COMMON 2025-05-02 09:30:34 -03:00
crypto crypto/xform.c: migrate to SPDX identifier 2024-12-19 14:48:18 +08:00
Documentation Documentation/xtensa: Add SDM docs for esp32[-|-s2|-s3] 2025-05-09 19:20:47 +08:00
drivers drivers/mmcsd/mmcsd_sdio.c: use dma to receive setup if dma is enabled 2025-05-11 20:28:55 +08:00
dummy build: add initial cmake build system 2023-07-08 13:50:48 +08:00
fs fs/procfs: Improve subdirectory recognition 2025-05-02 09:28:06 -03:00
graphics move readv/writev to the kernel 2024-10-30 17:07:54 +08:00
include drivers/sensor: Fix spell errors of uorb.h 2025-05-11 20:28:17 +08:00
libs sched/wqueue: Improve performance of the work_queue. 2025-05-11 10:47:13 +08:00
mm libc/elf: rename modlib to libelf 2025-04-11 09:43:22 +08:00
net net/tcp/tcp_conn.c: optimize the port conflict detection rules 2025-04-24 14:10:27 +08:00
openamp Remove all jira and changeid information from the kernel 2024-11-06 02:04:03 +08:00
pass1 Revert "build depend:Revert Make.dep intermediate ddc file" 2024-09-15 19:29:47 +08:00
sched sched/wqueue: Improve performance of the work_queue. 2025-05-11 10:47:13 +08:00
syscall sched/gettid: Move thread ID to TLS 2025-04-08 22:53:10 +08:00
tools tools: add permitted mixed case suffixes to nxstyle 2025-05-08 15:58:18 +08:00
video Revert "build depend:Revert Make.dep intermediate ddc file" 2024-09-15 19:29:47 +08:00
wireless wireless/ieee802154: Replace direct access to semaphore value with nxsem_get_value 2025-04-17 20:13:40 +08:00
.asf.yaml github: master branch protection tune. 2025-05-07 18:37:13 -05:00
.codespell-ignore-lines style: add codespell configuration for common spelling exceptions 2025-05-05 12:34:39 +08:00
.codespellrc style: fix typos required by ci-cd 2025-05-09 19:21:17 +08:00
.gitignore gitignore: add Emacs auto-save files 2025-01-15 16:10:22 +08:00
.pre-commit-config.yaml pre-commit: enable codespell checks 2025-05-05 12:34:39 +08:00
.yamllint
AUTHORS AUTHORS: add Yamamoto Takashi 2024-11-04 22:29:22 +08:00
CMakeLists.txt Documentation: fix typo in comments 2025-04-11 22:31:30 +08:00
CONTRIBUTING.md 202503 Apache NuttX RTOS Contributing Guidelines update. 2025-03-17 08:30:37 -03:00
INVIOLABLES.md
Kconfig libc/elf: rename modlib to libelf 2025-04-11 09:43:22 +08:00
LICENSE libc string:Separate code. 2024-10-23 09:49:19 +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.

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

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