一种高效软件定时器的设计与实现  

Design and Implementation of an Efficient Software Timer

作　　者：秦玉蒙 王娅男[1] 邱春玲[1] 

机构地区：[1]吉林大学仪器科学与电气工程学院,吉林长春130026

出　　处：《实验室研究与探索》2015年第9期94-97,106,共5页Research and Exploration In Laboratory

基　　金：国家重大科学仪器设备开发专项(2011YQ140150)

摘　　要：为了满足单片机开发系统中对软件定时器的需求,设计并实现了一种高效软件定时器。该软件定时器以单个硬件定时器为基础实现了多个软件定时器,可作为一个模块嵌入到软件中;叙述了软件定时器的设计思想和实现方法。实验测试和应用实例表明,该软件定时器定时误差可控,算法高效,且满足单片机开发系统对软件定时器的应用需求。In order to meet the requirement of software timer in microcontroller development system,an efficient software timer is designed and implemented. A number of software timers are achieved based on a single hardware timer,and can be used as a module embedded into the software. The design idea and implementation method are mentioned in details.The results of experimental tests and application example show that the system is with controllable-error and good property,and meets the application requirements of microcontroller development system.

关 键 词：单片机 时钟节拍 软件定时器 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论] TP368.1[自动化与计算机技术—计算机科学与技术]