摘要
嵌入式实时操作系统是能在确定的时间内执行计算或处理功能并能对外部事件做出响应的系统,由此可见时间逻辑会影响软件系统的正确性,时间指标一般指任务切换、完成时间和中断响应时间。根据这些特点,文中简要介绍了静态分析方法,着重介绍了一种利用8253可编程间隔定时器进行插装的实时动态检测时间指标的方法。此方法在嵌入式火控系统软件时间性能指标的测试中得到了充分利用,取得很好的应用效果,同时也介绍了此方法的局限性,便于在其他测试项目中更充分的运用。
Embedded real-time operating system is able to determine the amount of time to perform calculations or processing functions and can respond to external events system,which shows temporal logic will affect the correctness of software systems,the time indicators generally refers to task switching, completion time and interrupting response time. According to these characteristics, briefly describe the static analysis methods,focusing on a real-time dynamic detection time indicator method of using a programmable interval timer 8253. This method has been fully utilized in embedded fire control system software performance tests, obtaining a good application result, at the same time introduce the limitations of this approach,in order to facilitate the better use in other test prqiects.
出处
《计算机技术与发展》
2014年第3期250-252,F0003,共4页
Computer Technology and Development
基金
国防预研基金(51319080202)
