英语翻译用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器,实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环点亮,倒计

英语翻译用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器,实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环点亮,倒计
英语翻译
用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器,实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环点亮,倒计时剩5秒时黄灯闪烁警示（交通灯信号通过PA口输出,显示时间直接通过8255的PC口输出至双位数码管）；车辆闯红灯报警；绿灯时间可检测车流量并可通过双位数码管显示.本系统实用性强、操作简单、扩展功能强.

英语翻译用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器,实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环点亮,倒计
The designing of traffic light controller with single chip microprocessor series MSC-51 and programmable parallel I/O interface chip 8255A as central device,realizes the function to set the red / green lighting time according to the actual vehicle flowrate by the PI port of 8051 chip.Red and green lights in turn,the yellow flashes to warn from 5 seconds countdown.( Traffic light signal is output through PA port,indicating timer is output directly to dual-digit tube through the PC port of 8255.) Any run in the red light will be alarmed; in green,traffic flow can be detected and displayed through the dual-digit tube.The system is very practical,easy to operate,and powerful to expand functions.

This system adopt MSC-51 series monolithic machine ATSC51 and the parallel I/O interface chip weave Cheng to have realized the function being able to according to actual vehicle rate of flow by the fa...

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This system adopt MSC-51 series monolithic machine ATSC51 and the parallel I/O interface chip weave Cheng to have realized the function being able to according to actual vehicle rate of flow by the fact that 8051 chips P1 mouth interposing redly , green light burning bright time for 8255 As coming to design the traffic light controller centre component,; Traffic light circulation lightens , the evasive yellow light warning (traffic light signal passes when the countdown is remnant 5 seconds PA mouth output, the mouth demonstrating direct time PC by 8255 outputs till dibit numerical code; The vehicle runs the red light giving an alarm; Green light time may check vehicle rate of flow may pass dibit numerical code display together. The system pragmatism is strong , the function handling a simplicity , expanding is strong.

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