基于单片机多功能定时器应用科学学院《电子系统设计》课程设计报告姓名:杨春波学号:5号专业班级:12级嵌入式系统实验班指导教师:朱水金设计题目:基于单片机多功能定时器完成时间:2015年06月27日设计(45%)制作(35%)实训报告(20%)总评简易难度(15%)控制方式(10%)原理图(10%)装配图(10%)器件焊接(5%)软件控制(10%)功能实现(10%)质量评估(10%)格式(5%)内容(15%)指导教师签名:11基于单片机多功能定时器目录第一章引言.....................................................................................................................................21.1选题背景.............................................................................................................................21.2内容摘要.............................................................................................................................21.3设计任务.............................................................................................................................21.4性能指标...........................................................................................................................2第二章系统电路设计.......................................................................................................................32.1系统总体设计框架.............................................................................................................32.2系统硬件单元电路设计.....................................................................................................32.2.1主控单元..................................................................................................................42.2.2时钟电路设计..........................................................................................................42.2.3复位电路..................................................................................................................52.2.4键盘模块..................................................................................................................52.2.5显示模块..................................................................................................................62.2.6蜂鸣器报警电路......................................................................................................72.3系统原理图及pcb印刷板图..............................................................................................72.3.1系统硬件原理图.....................................................................................................72.3.2pcb印刷板图...........................................................................................................92.3.3模拟图……………………………………………………………………………...92.4实物图..............................................................................................................................11第三章系统软件设计....................................................................................................................133.1系统软件流框图...............................................................................................................133.2按键扫描流程图和程序...................................................................................................143.3按键处理子程序流程图和程序.......................................................................................153...