电子与控制工程学院计算机原理与接口技术课程设计姓名高强强学号 3206 100232 专业建筑设施智能技术设计题目可任意启动停止的电子秒表指导老师傅攀峰目录1 电子秒表课程设计要求·············································12 关键字································································13 摘要···································································14 综合实验目的························································15 引言···································································1 5.1.1 使用各个芯片的作用及工作原理···································25。1.2 8253 可编程外围芯片介绍··········································35.1。3 锁存器 74ls273·····················································45。1.4 译码器 74154························································75.1。5 七段数码管显示······················································86 程序流程图····························································107 程序源程序····························································118 程序及硬件调试图····················································159 设计心得·······························································1710 参考文献··········...
