单片机的万历大学设计.docVIP

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单片机的万历大学设计.doc

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单片机的万历大学设计

分类号密级＿＿＿＿＿＿无锡职业技术学院毕业设计说明书题目：基于AT89S52的万年历设计英文题目： The calendar design based on AT89S52 学生姓名：张炜杰＿＿＿专业：机电一体化技术＿指导教师：曾文萱＿职称：讲师＿＿毕业设计说明书提交日期：2012年10月23日地址：控制技术学院目录第一章设计方案论证················································1 1.1功能要求·····················································1 1.2方案确定·····················································1 1.2.1单片机芯片的选择方案和论证·······························1 1.2.2显示模块选择方案和论证···································2 1.2.3时钟芯片的选择方案和论证·································2 1.2.4电路设计最终方案确定·····································2 第二章主控制器和外围器件··········································3 2.1AT89S52单片机················································3 2.2DS1302时钟芯片···············································3 2.2.1DS1302芯片介绍···········································3 2.2.2DS1302 的应用·············································6 2.3数码管LED····················································7 2.4译码器74HC138················································7 2.5锁存器74LS244················································7 第三章硬件设计····················································8 3.1电路设计框图·················································8 3.2系统概述·····················································8 3.3电源设计·····················································8 3.4单片机的复位电路·············································8 3.5单片机系统的晶振电路·········································9 3.6主电路设计··················································10 第四章软件设计···················································12 4.1主程序设计··················································12 4.2键盘子程序设计··············································13 4.3日历时钟子程序设计··········································15 4.4显示子程序设计··············································17 第五章系统调试···················································18 5.1软件调试·····