board.h gains GPIO_SCI0_RX/TX (P610/P609, SCI0 pin group 3), needed to exercise CONFIG_RA_SCI0_UART on this board at all -- previously only SCI9's console pins existed. The new serial-test defconfig builds on nsh with SCI0 enabled as /dev/ttyS1 with its FIFO (CONFIG_RA_SCI0_FIFO, measured on hardware as the best overrun-resistant setting: TTRG=15, RXTRG=0), 1024-byte RX/TX ring buffers (up from the 256-byte default, to better absorb bursts during testing), CONFIG_SERIAL_TERMIOS + apps/system/stty (to change its baud rate live), and apps/examples/serialblaster + serialrx pointed at it, for exercising the SCI_B driver's FIFO/overrun-recovery paths independently of the SCI9 console. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Assisted-by: Claude:claude-sonnet-5 Signed-off-by: leocafonso <leocafonso@gmail.com> |
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|---|---|---|
| .github | ||
| arch | ||
| audio | ||
| binfmt | ||
| boards | ||
| cmake | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| dummy | ||
| fs | ||
| graphics | ||
| include | ||
| libs | ||
| mm | ||
| net | ||
| openamp | ||
| pass1 | ||
| sched | ||
| syscall | ||
| tools | ||
| video | ||
| wireless | ||
| .asf.yaml | ||
| .codespell-ignore-lines | ||
| .codespellrc | ||
| .editorconfig | ||
| .gitignore | ||
| .gitmessage | ||
| .mcp.json | ||
| .pre-commit-config.yaml | ||
| .yamllint | ||
| AUTHORS | ||
| CMakeLists.txt | ||
| CONTRIBUTING.md | ||
| INVIOLABLES.md | ||
| Kconfig | ||
| LICENSE | ||
| Makefile | ||
| NOTICE | ||
| README.md | ||
| ReleaseNotes | ||
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.