单片机课程设计汽车转向灯

2010 届毕业设计（论文）课题任务书

系：电气与信息工程系专业：电子信息工程技术

目录

1 绪论…………………………………………………………………………

1.1 选题背景………………………………………………………………………

1.2 研究意义………………………………………………………………………

1.3 研究方法……………………………………………………………………

2 汽车转弯灯单片机控制系统原理………………………………………………

2.1 汽车转弯灯工作原理…………………………………………

2.2 单片机系统的工作原理及设计………………………………………………

3 设计方案论证与选择………………………………………………

3.1 方案论证一……………………………………………………………

3.2 方案论证二…………………………………………………………

3.3 方案选择…………………………………………………………

4 控制系统的硬件设计…………………………………………………………

4.1 单片机控制系统电路图……………………………

4.2 单片机控制系统功能模块的设计………………

4.3 元器件清单……………………………………………………

5 主要芯片介绍…………………………………………………………

5.1 单片机的特点………………………………………………………

5.2 单片机各引脚介绍………………………………………………………

5.3 单片机的功能介绍………………………………………………………

6 控制系统的软件设计……………………………………………………

7.1 汽车转弯灯控制系统流程图

7.2 软件和程序设计

7 电路功能实现

7.1 软件调试

7.2 单片机硬件功能实现

7.3 仿真操作说明及现象………………………………………………………

参考文献…………………………………………………………………………………. 致………………………………………………………………………………………

附录………………………………………………………………………………………

摘要

随着单片机的日益发展，其应用也越来越广泛，通过对“汽车转弯灯单片机控制系统”设计，可以对单片机的知识得到巩固和扩。本设计是设计一个单片机控制系统。在汽车进行左转弯、右转弯、刹车、合紧急开关、停靠等操作时，实现对各种信号指示灯的控制。本设计主要是对单片机的并行输入/输出口电路的应用，通过I/O口控制发光二极管的亮﹑灭﹑闪烁，加上一些复位电路﹑按键电路﹑驱动电路来模拟汽车尾灯的功能。

汽车在驾驶时有左转弯、右转弯、刹车、合紧急开关、停靠等操作。在左转弯或右转弯时，通过转弯操作杆应使左转开关或右转开关合上，从而使左头灯、仪表板左转弯灯、左尾灯或右头灯、仪表板右转弯灯、右尾灯闪烁；合紧急开关时要求前面所述的6个信号灯全部闪烁；汽车刹车时，两个尾灯点亮；如正当转弯时刹车，则转弯时原应闪烁的信号灯仍应闪烁。以上闪烁，都是频率为1Hz的低频闪烁；在汽车停靠而停靠开关合上时，左头灯、右头灯、左尾灯、右尾灯按频率为30Hz的高频闪烁。通过做实物，编写程序，完成了设计的要求。通过该设计，对单片机的认识有了更进一步的了解，对单片机的各个口的功能作用了解加深，对Protel的应用更加熟练，对设计系统有了了解，掌握了一些设计方法，受益不少。

关键词单片机；汽车信号转弯灯；电路基础；数字电子技

ABSTRACT

With more monolithic integrated circuits, the more extensive, "the car turned the" monolithic integrated circuits to control system design, can the information to monolithic integrated circuits has been consolidated and expanded. this design is to design a monolithic integrated circuits to control system. in the car to turn left and right, the brakes, to open the door, called for urgent action to implement the various signal sign of control. this design is primarily to monolithic integrated circuits of the export of the circuit in parallel lost. i turned around and control of light through And bright, shining out, and some clear, and buttons, the driving circuit circuit to a function of the taillights. the car was driving up turn left and right, the brakes, to open the door, called an emergency operations. in turn left or right, through the turn of the operation should be left or right switch to switch on the left, the dashboard turn left or right and left the taillight the instrument panel lamp, and turning right, the right rear lights flickered ；switch to the emergency requires that the previous 。The six the light shone in the car braked all ；, two of the taillights like a light ；just round the corner, the corners of the original signal shall be still flickered. the above, are the frequency of the low frequencies 1hz ；in a car and close at the switch when, right and left the taillight, the right rear lights for the frequency of high frequency a 30hz. by doing physical, program, completed the design demands. the design of a monolithic integrated circuits has further the

Key words monolithic integrated circuits ；the car turned the light signals ；basic techniques of digital circuit ；electronic