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本科毕业设计（论文）目录引言··························································································································································1任务指标及要求························································································································2方案确定·······································································································································3芯片及器件介绍························································································································3.1MCS-51微型计算机·······················································································································3.1.1MCS-5l基本组成及主要特点···································································································3.1.2MCS-51内部结构及功能简述···································································································3.1.3工作原理······································································································································3.1.4定时器········································································································································3.1.4.1定时器的工作原理·············································································································3.1.4.2定时计数器的控制·············································································································3.1.4.3定时计数器的初始化·········································································································3.1.5单片机的中断系统················································································································3.1.5.1AT89C51的中断系统···········································································································3.1.5.2中断处理过程·················································································
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