bf957348ef
Command "critmon" has some format errors and information errors, such as:
PRE-EMPTION CALLER CSECTION CALLER RUN TIME PID DESCRIPTION
1.679000000 3.704000000
None None 0 CPU0 IDLE
0.002000000 0.003000000
None None 1 CPU1 IDLE
0.000000000 0.000000000
None None 2 CPU2 IDLE
0.000000000 0.000000000
None None 3 CPU3 IDLE
0.001000000 0.001000000
None None 4 hpwork
0.002000000 0.006000000
None None 5 nsh_main
0.000000000 0.000000000
None None 6 critmon
After bug fix:
PRE-EMPTION CALLER CSECTION CALLER RUN TIME PID DESCRIPTION
None None ---------------- ---------------- ---- CPU 0
None None ---------------- ---------------- ---- CPU 1
None None ---------------- ---------------- ---- CPU 2
None None ---------------- ---------------- ---- CPU 3
None None 0.238000000 6.982000000 0 CPU0 IDLE
None None 0.461000000 13.089000000 1 CPU1 IDLE
None None 0.000000000 0.000000000 2 CPU2 IDLE
None None 0.000000000 0.000000000 3 CPU3 IDLE
None None 0.000000000 0.001000000 4 hpwork
None None 0.000000000 0.010000000 5 nsh_main
None None 0.000000000 0.000000000 46 critmon
Signed-off-by: wangzhi16 <wangzhi16@xiaomi.com>
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.