数字温度计课程设计报告 1 目 录 1.设计任务.................................................... ................ ................ .............................1 1.1 设计目的........................................... .............. ................................................1 1.2 设计指标................................ ...................... .......................................................1 1.3 设计要求................................................ ............................................................1 2 . 设计思路与总体框图................................................ ...............................................1 3 . 系统硬件电路的设计............................................... ................................................2 3.1 主控电路............................................... ... .........................................................2 3.2 液晶显示电路........................................... .........................................................3 3.3 按键电路....... .... ................................................... ............................................3 3.4 报警电路........................ .................. ................................................................4 4 . 系统仿真设计...........................................................................................................4 4.1 仿真原理图............................................... ................ ...... .................................4 4.2 各功能元件的分析.............................................................................................5 5 . 系统软件设计.........................................................................................................1 0 5 .1 主程序...............................................................................................................1 1 5 .2 读出温度子程序...................................................
