μC/OS-Ⅱ中时钟节拍函数的改进算法  

The improvements of the algorithm of clock rhythms function of μC/OS-Ⅱ

作　　者：李静梅[1] 景涛[1] 

机构地区：[1]哈尔滨工程大学计算机科学与技术学院,黑龙江哈尔滨150001

出　　处：《应用科技》2009年第7期51-53,共3页Applied Science and Technology

摘　　要：针对实时内核μC/OS-Ⅱ在执行时钟中断服务子程序时,时钟节拍函数所做的工作过多、中断响应时间过长的缺点,提出一种新的改进算法.本算法将时钟节拍函数所做的大部分工作转交给一个新建立的任务来完成,从而缩短中断响应时间,提高μC/OS-Ⅱ的实时性.实验表明,该算法是有效可行的,为实时内核带来整体性能的提升.Real-time kernel μC/OS-Ⅱ in the implementation of the server subroutine of clock interrupt, the work done by the clock function is too much, interrupt response time is too long, thus a new algorithm is presented. This algorithm transfers much of the work which done by the function of the clock to a newly established task to complete, thus reducing interrupt response time and improving the real-time of μC/OS-Ⅱ. Experiments show the effec- tiveness and feasibility of this algorithm and improving the performance of real-time kernel.

关 键 词：μC/OS—Ⅱ实时性 时钟节拍中断 中断响应 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]