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苗亮s Tag
: 教育学习
(1 items)
用MCS51来实现红绿灯的控制
(ongoing)
用8255A口的PA7,PA6,PA5控制南北方向的红,黄,绿灯.用8255A的PA0,PA1,PA2控制东西方向的红,黄,绿灯,控制方式为:东西方向通行30秒后,黄灯亮1秒,再南北方向通行30秒后, ...Last Update: 07/08/2008
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