目 录
1.1 系统分析.............................................................................................................................................1
1.2 系统方案.............................................................................................................................................1
1.2.1 方案设计...................................................................................................................................1
1.2.2 方案论证...................................................................................................................................2
2.2 单片机最小系统................................................................................................................................3
2.2.1 振荡电路――让单片机活起来的心脏..................................................................................3
2.2.2 复位电路――恢复初始状态值..............................................................................................4
2.2.3 程序下载接入电路..................................................................................................................4
2.3 电源电路设计.....................................................................................................................................5
2.4 显示电路设计.....................................................................................................................................6
2.7 元件清单.............................................................................................................................................7
第 III 页