/***********************************************************************************
*  標(biāo)題:  步進(jìn)電機(jī)試驗(yàn)五（正轉(zhuǎn)一圈 反轉(zhuǎn)一圈）									   *
* 																				   *
*    通過(guò)本例程了解步進(jìn)馬達(dá)使用及驅(qū)動(dòng)程序編寫									   *
*;   單雙八拍工作方式：                                                            *
*;   A-AB-B-BC-C-CD-D-DA (即一個(gè)脈沖,轉(zhuǎn) 3.75 度)      							   *
*                     	                                                           *
*  請(qǐng)學(xué)員一定要消化掉本例程                       	                               *
                     	                           								   *
**************************************************************************************/    
 
 #include "reg52.h"

 void delay(unsigned int t);

 //Motor
sbit F1 = P1^0;
sbit F2 = P1^1;
sbit F3 = P1^2;
sbit F4 = P1^3;

unsigned char code FFW[8]={0xfe,0xfc,0xfd,0xf9,0xfb,0xf3,0xf7,0xf6}; //反轉(zhuǎn)
unsigned char code FFZ[8]={0xf6,0xf7,0xf3,0xfb,0xf9,0xfd,0xfc,0xfe}; //正轉(zhuǎn)
unsigned int  K;


/**********************************************************************
*																	  *
*                       步進(jìn)電機(jī)驅(qū)動(dòng)								  *
*																	  *
***********************************************************************/
void  motor_ffw()
 { 
   unsigned char i;
   unsigned int  j;
  	for (j=0; j<12; j++)         //轉(zhuǎn)1*n圈 
    { 

      for (i=0; i<8; i++)       //一個(gè)周期轉(zhuǎn)30度
        {
          if(K==1) P1 = FFW[i]&0x1f;  //取數(shù)據(jù)
		  if(K==2) P1 = FFZ[i]&0x1f;
          delay(15);                   //調(diào)節(jié)轉(zhuǎn)速
        }
     } 
 }

/******************************************************
*
*	             延時(shí)程序
*
********************************************************/
 void delay(unsigned int t)
{                           
   unsigned int k;
   while(t--)
   {
     for(k=0; k<100; k++)
     { }
   }
}


main() 
 { 
    while(1)
	{
	 K=1;
	 motor_ffw();
	 K=2;
	 motor_ffw();

	 }
}