摘要
本设计以单片机AT89C51为控制核心,采用其内部的定时器改变CP脉冲频率从而实现对步进电机的转速进行控制。以L297作为驱动芯片产生驱动脉冲信号,由按键控制步进电机的步进方向和步进速度,并经液晶显示器实时显示,通过仿真软件Proteus对系统做了仿真和测试。
The design uses the AT89C51 by changing the CP pulse frequency with the MCU as the control center; the internal timer of AT89C51 MCU. speed of stepper motor is controlled The L297 is used as driver chip to produce a drive pulse signal. The stepping direction and speed are controlled by the keyboard, and at the same time, they are displayed on the LCD real-time. The system is simulated and tested by the simuhative software proteus.
出处
《山西电子技术》
2017年第2期5-6,66,共3页
Shanxi Electronic Technology
