51单片机驱动步进电机(含电路图和源程序代码）

源程序:
stepper.c 
stepper.hex 
/* 
* STEPPER.C 
* sweeping stepper's rotor cw and cww 400 steps 
* Copyright (c) 1999 by W.Sirichote 
*/ 
＃i nclude c:\mc5151io.h /* include i/o header file */ 
＃i nclude c:\mc5151reg.h 
register unsigned char j,flag1,temp; 
register unsigned int cw_n,ccw_n; 
unsigned char step[8]={0x80,0xc0,0x40,0x60,0x20,0x30,0x10,0x90} 
#define n 400 
/* flag1 mask byte 
0x01 run cw() 
0x02 run ccw() 
*/