步进电机控制程序(c语言+51单片机)

#includereg51.h>

#define uint unsigned int
#define uchar unsigned char
#define ms *77
// f = 12 M
#define LEDLen 4
#define Dj_star() {IE=0x81; pri_dj=0; }
#define Dj_stop() {IE=0x00; pri_dj=1; P1=0xff; shache=0; delay(800ms); delay(800ms);delay(400ms); shache = 1; }
#define Chilun_Num 8
/* 齿轮数 8 个*/
#define set_display_num() { LEDBuf[0] = tmp / 1000; LEDBuf[1] = tmp / 100 % 10;
LEDBuf[2] = tmp / 10 % 10; LEDBuf[3] = tmp % 10; }
uchar LEDBuf[LEDLen] = {0,0,0,0};
void read_num (); /* 读播码盘 到 set_round_num * 8 */
void display ();
void delay(uint delay_time) { uint i; for (i=0; i delay_time ; i++) ; }
void run ();
void fx_run();

uint round_num = 0; /* 记录已转的 齿轮数 , 中断1次 加 1*/
uint set_round_num = 0; /* 播码盘设置 圈数 */
uint set_pwm_width = 0; /* 播码盘设置 步进电机 正向速度 */
bit one_round_flg = 0;
sbit led_1000 = P0^7; //use for display
sbit led_100 = P0^6; //use for display
sbit led_10 = P0^5; //use for display
sbit led_1 = P0^4; //use for display

sbit key_start = P3^0;
sbit key_puse = P3^0;
sbit key_clear = P3^1;
/* P3^2 接齿轮传感器 中断 */
sbit bujin_zx_stop = P3^3; /* 接步进电机 ,正向到位传感器 ,为 0 停机 */
sbit bujin_fx_stop = P3^4; /* 接步进电机 ,反向到位传感器 ,为 0 停机 */

sbit shache = P3^5; /* 接刹车控制继电器 0 电位有效 */
sbit pri_dj = P3^6; /* 接主电机控制继电器 0 电位有效 */

void main(){
TCON = 0x01;
display();
while(1) {
IE=0x00;
round_num = 0;
display();
if ( bujin_fx_stop ) fx_run();
while ( key_start );
delay ( 8ms );
if(!key_start){
read_num();
//set_round_num = 8;
while ( !key_start );
run ();
fx_run();
}
}
}

void run () {
#define Delay_time 180
/* 转一圈 50 次循环，每循环 4 步 ，50 * 4 = 200 ， 200 * 1。8 = 360 */
uchar i ;
P1 = 0xff;
set_pwm_width = 15 + set_pwm_width / 10;
while ( 1 ) {

while( !shache | !key_start );
Dj_star();
for ( i=0 ; bujin_zx_stop !pri_dj;i++ ){
P1 = 0xf9;
delay ( Delay_time ); // bujin_zx_stop = P3^3;
P1 = 0xfc; // bujin_fx_stop = P3^4;
delay ( Delay_time); // key_puse = P3^0;
P1 = 0xf6; // key_clear = P3^1;
delay ( Delay_time ); // shache = P3^5;
P1 = 0xf3; // pri_dj = P3^6;
delay ( Delay_time );
if( i == set_pwm_width ) { P1 = 0xff; i = 0; one_round_flg = 0; while ( !one_round_flg key_puse );}
if(!key_puse) { delay(4ms); if(!key_puse) break; }
}

P1 = 0xff;
if ( pri_dj ) break;

if ( !key_puse ) {
delay ( 8ms );
if ( !key_puse ) {
Dj_stop();
while ( !key_puse );
// next pree key
while( !shache );

while(1){
while ( key_puse key_clear );
delay ( 8ms );
if ( !key_clear ) { round_num = 0; display(); }
if ( !key_puse ) break;
}
while( !key_puse );
delay(8ms);
while( !key_puse );
}
}
}
}