I'm confused with some of the TI SDKs usage of POSIX in their examples. For example, I see pthread_create all over the place. Is POSIX usage required or optional?
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I'm confused with some of the TI SDKs usage of POSIX in their examples. For example, I see pthread_create all over the place. Is POSIX usage required or optional?
Many POSIX functions are supported on top of TI-RTOS kernel (also called SYS/BIOS). The usage is optional. You can even intermix usage of the native TI-RTOS APIs with the POSIX APIs (with some restrictions). Many of the TI-RTOS examples (especially in the SimpleLink SDKs) use POSIX to show portability between TI-RTOS and FreeRTOS.
Why would you use POSIX instead of the native TI-RTOS APIs?
Please note, there will be a footprint overhead for using the POSIX APIs instead of directly using the native TI-RTOS APIs.
For more information about POSIX support in TI-RTOS, please refer to the "POSIX User Guide" in the docs/tiposix/Users_Guide.html file in the SimpleLink SDK, SYS/BIOS, or Processors SDK products.