第1页目录一、设计总绪..................................................................................................................................21.1设计思想............................................................................................................................21.2设计说明............................................................................................................................21.3关键词：矩阵键盘，单片机，数码管显示，汇编语言.................................................21.4设计目的............................................................................................................................21.5设计要求............................................................................................................................2二、设计方案..................................................................................................................................32.1硬件电路设计方案............................................................................................................32.1.1基本结构................................................................................................................32.1.2系统框架图............................................................................................................32.1.3工作流程图............................................................................................................42.1.4单片机主控制模块................................................................................................52.2系统功能描述....................................................................................................................6三、各模块功能介绍.......................................................................................................................73.1键盘输入模块....................................................................................................................73.1.1键盘分布图............................................................................................................73.1.2工作原理................................................................................................................73.2运算控制模块.....................................................................................................................83.3显示模块............................................................................................................................83.4振荡电路模块....................................................................................................................9四、仿真电路................................................................................................................................10仿真运行结果.........................................................................................................................10五、调试过程总结.........................................................................................................................12附录：............................................................................................................................................13参考文献：.............................................................................................................................13源程序代码...........
