目 录
中 文 摘
要
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Ⅰ
1. 引
思
片
简
结
特
言
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2.
路
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3.
机
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3.1
介
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1
设 计 任 务 及
1
单
3
单 片 机
3
3.2
构
单 片 机 基 本
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3
3.3
性
单 片 机 硬 件
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3
4. 芯片的选择
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4.1 74LS373 以及 74LS07 芯片简介
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4.2 8255 芯片
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4.2.1 8255 可编程并行接口芯片简介
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4.2.2 8255 可编程并行接口芯片方式控制字格式说明
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4.3 晶闸管
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5. 交通灯控制原理分析及方案论证
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6. 系统硬件设计
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6.1
计
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6.2 单片机最小系统
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6.2.1
路
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4
4
5
5
5
7
8
9
总 体 设
9
9
振 荡 电
9
6.2.2 复位电路
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10
1
