机电工程系毕业论文目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc363325034"前言PAGEREF_Toc363325034\h4HYPERLINK\l"_Toc363325035"1.设计任务及基本要求PAGEREF_Toc363325035\h5HYPERLINK\l"_Toc363325036"2.系统基本方案选择与论证PAGEREF_Toc363325036\h5HYPERLINK\l"_Toc363325037"2.1单片机选择PAGEREF_Toc363325037\h5HYPERLINK\l"_Toc363325038"2.2显示模块选择方案和论证：PAGEREF_Toc363325038\h5HYPERLINK\l"_Toc363325039"3.主要元件介绍PAGEREF_Toc363325039\h5HYPERLINK\l"_Toc363325040"3.1STC89C51介绍PAGEREF_Toc363325040\h5HYPERLINK\l"_Toc363325041"3.1.1STC89C51主要功能及DIP封装PAGEREF_Toc363325041\h5HYPERLINK\l"_Toc363325042"3.1.2STC89C52引脚介绍PAGEREF_Toc363325042\h6HYPERLINK\l"_Toc363325043"3.2数码管介绍PAGEREF_Toc363325043\h8HYPERLINK\l"_Toc363325044"3.3.1四位一体数码管概述PAGEREF_Toc363325044\h8HYPERLINK\l"_Toc363325045"3.3.2四位一体数码管引脚图PAGEREF_Toc363325045\h8HYPERLINK\l"_Toc363325047"3.3自锁开关说明PAGEREF_Toc363325047\h9HYPERLINK\l"_Toc363325048"3.4上拉电阻介绍PAGEREF_Toc363325048\h9HYPERLINK\l"_Toc363325049"3.5三极管介绍PAGEREF_Toc363325049\h10HYPERLINK\l"_Toc363325050"3.6按键介绍PAGEREF_Toc363325050\h11HYPERLINK\l"_Toc363325051"3.7蜂鸣器介绍PAGEREF_Toc363325051\h12HYPERLINK\l"_Toc363325052"4.系统硬件设计PAGEREF_Toc363325052\h13HYPERLINK\l"_Toc363325053"4.1电路设计框图PAGEREF_Toc363325053\h13HYPERLINK\l"_Toc363325054"4.2系统硬件概述PAGEREF_Toc363325054\h13HYPERLINK\l"_Toc363325056"5.系统软件设计PAGEREF_Toc363325056\h13HYPERLINK\l"_Toc363325058"5.1软件系统框图PAGEREF_Toc363325058\h14HYPERLINK\l"_Toc363325059"5.2程序流程图PAGEREF_Toc363325059\h16HYPERLINK\l"_Toc363325060"6.调试PAGEREF_Toc363325060\h16HYPERLINK\l"_Toc363325061"6.1硬件调试PAGEREF_Toc363325061\h16HYPERLINK\l"_Toc363325062"6.2软件调试PAGEREF_Toc363325062\h17HYPERLINK\l"_Toc363325063"结论PAGEREF_Toc363325063\h18HYPERLINK\l"_Toc363325064"参考文献PAGEREF_Toc363325064\h19HYPERLINK\l"_Toc363325065"致谢PAGEREF_Toc363325065\h20HYPERLINK\l"_Toc363325066"附录1