下面是一个步进电机的演示程序：
#include <reg52.h> sbit key=P2^0; //按键控制步进电机的方向 unsigned char speed=5; //步进电机的转速 //八拍方式驱动，顺序为A AB B BC C CD D DA unsigned char code clockWise[]={0x01,0x03,0x02,0x06,0x04,0x0c,0x08,0x0d}; void delay(unsigned char z) { unsigned char x,y; for(x=0;x<z;x++) for(y=0;y<110;y++); } void main() { unsigned char i; while(1) { for(i=0;i<8;i++) { if(key) //按键未按下，正转 { P0=clockWise[i]; delay(speed); } else //按键按下，反转 { P0=clockWise[8-i]; delay(speed); } } } }
