本科论文目 录摘 要....................................................................................................................IAbstract.....................................................................................................................II引 言.......................................................................................................................11 控制系统设计........................................................................................................31.1 系统方案设计...............................................................................................31.2 系统工作原理...............................................................................................41.2.1 单片机的选择......................................................................................41.2.2 语音芯片的选择..................................................................................52 硬件电路设计........................................................................................................62.1 时钟电路.......................................................................................................62.2 复位电路.....................................................................................................62.3 显示电路.....................................................................................................72.4 电源电路.....................................................................................................72.5 按键模块电路.............................................................................................82.6 LM386 功放电路..........................................................................................82.7 总电路设计图..............................................................................................93 软件设计.............................................................................................................103.1 编程工具...
