介绍一款基于51单片机设计的交通灯模拟系统。从硬件电路设计和软件程序设计两个方面对电路进行描述。硬件电路又从时钟电路、复位电路、电源电路、LED显示电路和数码管倒计时电路分别对各部分电路功能进行了阐述。软件程序编写以红绿灯的现实通行要求为目标, 电路运行达到了预期的效果。在设计电路之前用Protues仿真软件和Keil软件进行了联调, 验证了电路的可行性, 提高了工作效率。

A traffic light simulation system based on 51 single chip micro-computer is introduced. The circuit is described from two aspects such as hardware circuit and software program designs. Hardware circuits are also described from the functions of clock circuits, reset circuits, power supply circuits, LED display circuits and digital tube countdown circuits. When the software program is written, the circuit is debugged with the actual traffic light requirements, and the expected effect is achieved. Prior to the design of the circuit, Protues simulation software and Keil software are used for joint modulation, and the feasibility of the circuit is verified and the working efficiency is greatly improved.