基于单片机的步进电机控制的设计.doc

安徽建筑工业学院 毕 业 设 计（论文） 姓 名 专 业 电子信息工程 班 级 08电子②班 学 号 课 题 基于单片机的步进电机控制的设计 指导老师 2012年 6 月 1 日 ——基于单片机的步进电机控制电子与信息工程学院 电子信息工程专业 200级2班 指导教师 本文介绍了关键字：Abstract Because of accuracy and well capability, the stepper motor is used in many fields. Design of a stepping motor control system based on MCU-89C52 processor is introduced. The system hardware configuration and working principle are described in this paper. The Step - motor drive chooses ULN2003 model between the single - chip microcomputer and step - motor. As an automatic control system, this system sends the control signals to the MCU by pressing the button to control the rotation speed and rotation direction of the Stepping Motor. The practice showed that the performance of this system out did the traditional stepping motor controller .The open-loop system which is composed by step-motor is simple, cheap and very practical, so there are very widely range of applications in many other fields. This article describes one design of step-motor system based on .the single - chip microcomputer ,The program of the preparation of a motor, straight revolving ,reverse revolving , speed up, slow down, stop is written by C language. The above functions are realized through the single - chip microcomputer, motor driver chip ULN2003 and correspond key, and the work state of stepper motor is displayed through the numeral diode. This article introduces the principle of stepper motor and single-chip microcomputer, the system hardware circuit, the program components, while software and hardware for the debugging, at the same time introduces the problems which are appeared in the debugging process and the solutions of the problems .From practice, we can bear out that both of the capability of resisting interference and the stability are all right. Key words：Stepper motor; STC89C52 single - chip microcomputer; ULN2003 目 录 第一章 绪论 1 1.1 课题研究的目的和意义 1 1.2 研究背景 1 1.3 论文的主要研究内容 3 第二章