步进电机源程序

#include<AT89X52.h>
 #include<intrins.h>
 #define uchar unsigned char
 #define uint unsigned int
 
 uchar code CCW[8]={0x08,0x0c,0x04,0x06,0x02,0x03,0x01,0x09};   //逆时钟旋转相序表
 uchar code CW[8]={0x09,0x01,0x03,0x02,0x06,0x04,0x0c,0x08};    //正时钟旋转相序表


 sbit K1=P3^2;  //反转按键
 sbit K2=P3^3;  //正转按键
 sbit K3=P3^4;  //停止按键
 sbit FMQ=P3^6;  //  蜂鸣器

 
void delaynms(uint aa)
{
  uchar bb;
  while(aa--)
  {
   for(bb=0;bb<115;bb++)     //1ms基准延时程序
   {
    ;
   }
  }
 
}

void delay500us(void)
{