bdac8c116a
After the ap core subscribes to the 25hz batch 120ms data of the sensor core, it switches to the cp core and subscribes to the 50hz batch 120ms sensor core data. At this time, the data subscribed by the AP will be abnormally lost (12.5hz). Mainly because ap subscribes to sensor core data earlier than cp. The subscription of cp will be broadcast to the ap core at the same time, and the corresponding "path" already exists under "/dev/uorb" of ap. Thus the ap will create a "stub". There are some restrictions on the creation of "stub" to avoid this situation. Signed-off-by: likun17 <likun17@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.
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