信号量在μC/OS-Ⅱ中的应用

摘要

实时多任务操作系统在嵌入式系统中的应用越来越受到开发者的重视,信号量做为任务之间的通信手段之一,在实时多任务操作系统中广泛使用;文章首先介绍了实时操作系统中的信号量及其类型,然后介绍了μC/OS-II中信号量的管理,并重点分类讨论了信号量的作用、工作原理以及具体的实现方法,最后给出了μC/OS- II中信号量在无人机系统中的应用.%Nowadays, in the embedded system, developers gain greatly emphysis on real-time operating-system (RTOS). Semaphores, being used as an method of communication, get the widely application. At first semaphores in real-time operating-system (RTOS) is introduced in brief. Then management of semaphores in μC/OS- II are given, at the same time, the greatly analysis of function and schematic of semaphores was issued, including method of implemetation. At last. Propose application of semaphores in μC/OS- II for UVA.