步进电机【驱动电路+C语言驱动程序】

1、 /*/ /*兰州交通大学电子电工实验中心 */ /*2009-8-2*/ /*/ #include"reg51.h"#include"intrins.h"#include"math.h"#include"absacc.h"#define PORTA XBYTE0x8500#define PORTB XBYTE0x8502#define PORTC XBYTE0x8504#define PORTC0 XBYTE0x8506#define nop _nop_(#define Right_RUN 1#define Le

2、ft_RUN 0unsigned long RunSpeed=76;unsigned char RUNState=1;sbit RS=P20;sbit RW=P21;sbit E=P22;sbit P17=P17;bit flag=0;unsigned char xx="speed(n/min:"unsigned char SD="76"char state214="direction:cw","direction:ccw" unsigned char FLG ,INMA=0;unsigned char t,s=0

3、x01;unsigned int a;main(void OPJIAN(;unsigned char JIAN(;unsigned char JIANZHI(;void speed(;void SHOW_LCD(;void show_state(;void write1(;void writ2(unsigned char i;void delay(;void time(;void busy(;unsigned char i;i=0x90;PORTC0=i;i=0x01;TMOD=i;t=0x10;FLG=INMA;SHOW_LCD(;show_state(;EA=1;ET0=1;TR0=1;w

4、hile(1i=JIAN(;if(i!=0time(;time(;i=JIAN(;if(i!=0INMA=JIANZHI(;OPJIAN(;time(;if(FLG!=INMA|flag=1 FLG=INMA;SHOW_LCD(;show_state(;flag=0;void SHOW_LCD(/*lcd设置程序 */ P1=0x38;write1(;delay(;P1=0x38;write1(;delay(;P1=0x38;write1(;delay(;P1=0x01;write1(;delay(;P1=0x0f;write1(;delay(;P1=0x06;void show_state(

5、/*状态显示程序 */ unsigned char i=0;P1=0x80;write1(;while(xxi!='0'writ2(xxi;i+;delay(;i=0;while(SDi!='0'writ2(SDi;delay(;i+;P1=0xc0;write1(;i=0;if(RUNState=Right_RUN while(state0i!='0'writ2(state0i;i+;elseif(RUNState=Left_RUN while(state1i!='0' writ2(state1i; i+;void write1

6、(/*lcd写控制字 */ RS=0;RW=0;E=0;busy(;E=1;E=0;busy(;E=1;void delay(/*延时程序 */unsigned char i;for(i=0;i<100;i+i=i;void time( unsigned char i,j;for(i=0;i<100;i+for(j=0;j<30;j+j=j;void busy( /判断 LCD 是否忙 doP1=0xff;RS=0;RW=1;E=0;nop;E=1;while(P17=1;unsigned char JIAN(/*判断是否有键按下 */ unsigned char i,j;i

7、=0xff;PORTA=i;time(;i=0x00;PORTB=i;return j; unsigned char JIANZHI(/*读键值程序*/ unsigned i,j,d,k,m=1; i=0xfe; k=0x01; do PORTB=i; j=PORTA; m=j&(0x01; if(m=0 d=k/2; else m=j&(0x02; if(m=0 d=k/2+4; else m=j&(0x04; if(m=0 d=k/2+8; else m=j&(0x08; if(m=0 d=k/2+12; k=k+2; i=i<<1; i=i|(

8、0x01; while(m!=0; return d; void OPJIAN( /* 键值处理程序*/ switch(INMA case 0x08: RUNState=Right_RUN;s=0xf7;break; case 0x09: RUNState=Left_RUN;s=0x01;break; case 0x0b: flag=1; t=t-2; RunSpeed=5000000/(65536-t*256-a; speed(;break; case 0x0f: flag=1; t=t+2; RunSpeed=5000000/(65536-t*256-a; speed(; void speed(/*速度处理程序*/ unsigned char i=0; SD0=RunSpeed/100+48; SD1=RunSpeed%100/10+48; SD2=RunSpeed%10+48; void time1(void interrupt