步进电机程序

//四个按键控制步进电机：正转，反转，加1，减1

//上电时电机启动，数码管上显示速度最小档1，加减档位均能通过数码管显示出来，电机采用单双八拍方式

//电机转速一共10档，通过按键调节转速 //电机正转时最高位数码管显示0，反转时显示1 #include

#define uchar unsigned char #define uint unsigned int #define led P0//数码管段选 #define haha P2 sbit s1 = P1^0; sbit s2 = P1^1; sbit s3 = P3^0; sbit s4 = P3^1;

sbit s5 = P3^2;//按键定义,s1正转，s2反转，s3加1，s4减1

sbit wei3 = P2^3;sbit wei2 = P2^2;sbit wei1 = P2^1;sbit wei0 = P2^0;//数码管位选定义

sbit a = P2^7;sbit b = P2^6;sbit c = P2^5;sbit d = P2^4;//脉冲信号输入端定义

uchar code tab[11]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};//共阳数码管驱动信号0---9，不显示

uchar code

time_counter[10][2]={{0xda,0x1c},{0xde,0xe4},{0xe1,0xec},{0xe5,0xd4},{0xe9,0xbc}, //9.7 ----1ms

{0xed,0xa4},{0xf1,0x8c},{0xf5,0x74},{0xf9,0x5c},{0xfc,0x18}}; uchar code qudong[8]={0x80,0xc0,0x40,0x60,0x20,0x30,0x10,0x90}; uchar num1 = 0;//控制取励磁信号变量

uchar num2 = 8;

char k=0;//加减档位控制，1为最小档

char pause=1;//暂停时保存之前的转速，开机默认1 bit flag1 = 0;//初始正转，正反转标志

uchar buf[4]={0,10,0,0};//数码管显示缓存，正转，不显示，不显示，显示1档位,高----低

//================================定时器0/1初始化函数================================ void T0_T1_init() { }

//================================ms级延时函数======================================= void delay1m(uint x) { uint i,j;

for(i=0;ivoid display() {

for(j=0;j<120;j++); //数120 次，约1 ms

TMOD = 0x11;//定时器0/1均工作于方式1,16位计时方式 TH1 = time_counter[k-1][0];

TL1 = time_counter[k-1][1];//定时器1，定时10ms用于步进电机转速控制 TR1 = 0;

ET1= 1;//开定时器中断 EA = 1;//开总中断

wei3=1;wei2=1;wei1=1;wei0=0;led = tab[buf[3]];delay1m(1);led=0xff;

wei3=1;wei2=1;wei1=0;wei0=1;led = tab[buf[2]];delay1m(1);led=0xff; wei3=1;wei2=0;wei1=1;wei0=1;led = tab[buf[1]];delay1m(1);led=0xff; }

//================================主函数

============================================= void main() {

T0_T1_init(); buf[1] = 10;//不显示 while(1) {

display(); if(s1 == 0) { // }

if(s2 == 0 ) {

delay1m(3); if(s1 == 0) { }

while(!s1) display();

flag1 = 0;//正转

buf[0] = 0;//最高位显示0 haha = 0x00;//停止

wei3=0;wei2=1;wei1=1;wei0=1;led = tab[buf[0]];delay1m(1);led=0xff;

// }

delay1m(3); if(s2 == 0) { }

while(!s2) display();

flag1 = 1;//反转

buf[0] = 1;//最高位显示1 haha = 0x00;//停止

if(s3 == 0) { }

if(s4 == 0) {

//速度加1档

delay1m(3); if(s3 == 0) { }

while(!s3) display();

k++; TR1=1; if(k > 10 ) { }

buf[2]= k/10; buf[3]= k%10;

k = 1;

//速度减1档

delay1m(3);

}

if(s4 == 0) { }

while(!s4) display();

k--; TR1=1; if(k <= 0) { }

buf[2]= k/10; buf[3]= k%10;

k = 10;

if(s5==0) {

delay1m(3); if(s5==0) {

if(TR1==1) { }

else if(TR1==0) { }

k=pause; TR1=1; pause=k; k=0; TR1=0; a=b=c=d=0;

}

}

}

}

buf[2]= k/10; buf[3]= k%10; while(!s5) display();

//==================================定时器1中断函数，用于脉冲频率控制===================================== void time1_interrupt()interrupt 3 {

static num1 = 0; static num2 = 0;

TH1 = time_counter[k-1][0];

TL1 = time_counter[k-1][1];//定时器1，定时1 用于步进电机转速控制 if(flag1 == 0)//正转 {

switch(num1) { }

case 0:a = 1;b = 0;c = 0;d = 0;break; case 1:a = 1;b = 1;c = 0;d = 0;break; case 2:a = 0;b = 1;c = 0;d = 0;break; case 3:a = 0;b = 1;c = 1;d = 0;break; case 4:a = 0;b = 0;c = 1;d = 0;break; case 5:a = 0;b = 0;c = 1;d = 1;break; case 6:a = 0;b = 0;c = 0;d = 1;break; case 7:a = 1;b = 0;c = 0;d = 1;break;

} else { }

}

num1++;

if(num1 == 8)num1 = 0;

//反转

switch(num2) { case 0:a = 1;b = 0;c = 0;d = 1;break; case 1:a = 0;b = 0;c = 0;d = 1;break; case 2:a = 0;b = 0;c = 1;d = 1;break; case 3:a = 0;b = 0;c = 1;d = 0;break; case 4:a = 0;b = 1;c = 1;d = 0;break; case 5:a = 0;b = 1;c = 0;d = 0;break; case 6:a = 1;b = 1;c = 0;d = 0;break; case 7:a = 1;b = 0;c = 0;d = 0;break;

} num2++;

if(num2 == 8)num2 = 0;