基于S3C2410的步进电机控制系统的实现

Implementation of the S3C2410-based Stepper Motor's Control System

利用步进电机细分技术,采用TA8435芯片对步进电机进行细分控制,有效减小步距角,提高机器人转角、取物等动作的准确性.系统由主控芯片S3C2410片内PWM定时器产生控制信号,经TA8435芯片细分输出阶梯波形驱动步进电机运转.分析步进电机驱动电路构成及软件控制方法.经过细分优化,使原有的机器人系统控制更准确,动作更精细.

This paper describes a system which can effectively reduce the step angle and improve the accuracy of robot’ s movement and activities. This system introduces stepper motor subdivision technology and TA8435 chip.Also this system adopts S3C2410 processor chip’ s inner PWM timer, which generates signals to control the stepper motor via TA8435 chip’ s staircase waveform. Finally this paper analyzes the drive circuit’ s structure and software control of the stepper motor. After subdivision and optimization, the original robot system is more accurate and more precise.