摘 要本设计中首先介绍了步进电机的工作原理、控制特点和运行状态，然后给出了步进电机的单片机控制系统的总体设计方案。在这个控制系统中，单片机选用 AT89C51，其作为控制核心，担负着产生脉冲，发送、接受控制命令等任务；脉冲分配采纳硬件方法，由 8713 接收到单片机的控制信号后产生相应的控制脉冲，避开了软件法在不停地产生脉冲时占用的时间；采纳单电压驱动的方法驱动电机带动负载运行；利用键盘、显示专用芯片 8279 能够以较简单的硬件电路和较少的软件开销实现微型机与键盘和 LED 显示器接口。本设计最后详细介绍了硬件部分和软件部分的实现方法。关键词：单片机；步进电机；速度控制;ZLG7290;显示器Abstract The design introduces the working principle of stepper motor, control features and operations, and then gives the stepper motor microcontroller control system design programs. In this control system, the SCM selecting AT89C51, the control center of the shoulder produces pulses, sending, receiving control commands and other tasks; pulse distribution method using hardware from the 8713 chip control signals received resulting from the corresponding control pulse, to avoid software method to generate pulses in constant time occupied; adopt a single voltage-driven approach drive motor to drive the load operation; use of keyboard, display 8279 can be dedicated to simple hardware and less software overhead to achieve keyboard and LED display interface. Finally introduce the hardware and software implementation methods in detail. Key words: SCM; stepper motor; speed control；ZLG7290;display； 目 录摘 要.......................................................IAbstract....................................................II第一章 绪论.................................................11.1 步进电机概述..........................................11.2 课题讨论的主要内容....................................21.2.1 讨论内容........................................21.2.2 论文安排.......
