摘要
介绍一种采用８２５３接口芯片，由微处理机通过８２５３接口来控制步进电机工作的接口电路，运行过程中不占用ＣＰＵ。具体介绍了硬件电路，包括实时脉冲发生电路以及分相和方向控制，还介绍了软件设计。
An interfacing circuit for step motor is introduced. The circuit controls the step motor through microprocessor and 8253 inter-face chip. In operation, it does not occupy CPU. The hardware cir-cuits, including real the pulse generator and the control of phasing all direction, are introduced. In addition, the design of software is also presented.
出处
《自动化仪表》
CAS
北大核心
2000年第12期44-45,50,共3页
Process Automation Instrumentation
关键词
接口电路
步进电机
可编程计数器
时序脉冲
分相
分频
Interface Step motor Programmable counter Timing pulse Phasing Dividing frequency
