AT89C2051驱动步进电机的电路和源码

[05-23 02:47:29]   来源:http://www.88dzw.com  单片机电路图   阅读:8949

文章摘要:相关元件PDF下载:89C2051 ULN2003 MAX232 程序stepper.c stepper.hex /* * STEPPER.C * sweeping stepper's rotor cw and cww 400 steps * Copyright (c) 1999 by W.Sirichote */ #include c:\mc51\8051io.h /* include i/o header file */ #include c:\mc51\8088dzweg.h register unsigned char j,flag1,temp; register

AT89C2051驱动步进电机的电路和源码,标签:电路图讲解,电路图练习,http://www.88dzw.com

相关元件PDF下载:


89C2051   ULN2003   MAX232   


程序

stepper.c
stepper.hex

/*
* STEPPER.C
* sweeping stepper's rotor cw and cww 400 steps
* Copyright (c) 1999 by W.Sirichote
*/

#include c:\mc51\8051io.h /* include i/o header file */
#include c:\mc51\8088dzweg.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()
*/

main()

{
flag1=0;
serinit(9600);
disable(); /* no need timer interrupt */
cw_n = n; /* initial step number for cw */
flag1 |=0x01; /* initial enable cw() */

while(1){
{
tick_wait(); /* wait for 10ms elapsed */

energize(); /* round-robin execution the following tasks every 10ms */
cw();
ccw();
}
}

}

cw(){
if((flag1&0x01)!=0)
{
cw_n--; /* decrement cw step number */
if (cw_n !=0)
j++; /* if not zero increment index j */
else
{flag1&=~0x01; /* disable cw() execution */
ccw_n = n; /* reload step number to ccw counter */
flag1 |=0x02; /* enable cww() execution */
}
}

}

ccw(){
if((flag1&0x02)!=0)
{
ccw_n--; /* decremnent ccw step number */
if (ccw_n !=0)
j--; /* if not zero decrement index j */
else
{flag1&=~0x02; /* disable ccw() execution */
cw_n = n; /* reload step number to cw counter */
flag1 |=0x01; /* enable cw() execution */
}
}

}

tick_wait(){ /* cputick was replaced by simpler ASM code 10ms wait */

asm' JNB TCON.5,*'; /* wait for TF0 set */
asm' CLR TCON.5'; /* clear TF0 for further set */
asm' ORL TH0,#$DC'; /* reload TH0 with $DC, TL0 = 0 */
}

energize(){

P1 = step[(j&0x07)]; /* only step 0-7 needed */
}


Tag:单片机电路图电路图讲解,电路图练习电子电路图 - 单片机电路图