就目前而言，全球RTOS装机量或用户量最大的非FreeRTOS莫属，但近两年你可能看到了另外一个RTOS（Zephyr）火起来了。 于是，就有网友抛出了这样的话题：Zephyr会超过FreeRTOS，成为下一个RTOS王者吗？ 这里就简单来分享一下FreeRTOS和Zephyr的一些内容以及各自的优势。

In this fourth lesson in the Real-Time Operating System (RTOS) series, you’ll see how to replace the horribly inefficient polling delay with efficient thread blocking. Specifically, in this lesson 25, ...

Issues with proprietary RTOS APIs. How does the POSIX pthread API stack up against proprietary APIs? Thread creation in POSIX. However, each proprietary API impedes embedded development by requiring ...