22222.rar_22222_89c51 stepper_motor with 89c51 _步进电机_步进电机仿真

#include <reg51.h> sbit DirContr = P1^7; //方向选择 sbit SpeAdd = P1^6; //速度加 sbit SpeSub = P1^5; //速度减 unsigned char tab = 0; //调整转比 unsigned char Speed = 3; //速度选择 值越大速度越慢 unsigned char Direction = 0; //方向标志 unsigned char MotoPa = 0; //马达参数 unsigned char LedPa = 0; //数码管参数 unsigned char MotoCode1[] = {0xf8, 0xf4, 0xf2, 0xf1}; //顺时针转 unsigned char MotoCode2[] = {0xf1, 0xf2, 0xf4, 0xf8}; //逆时针转 unsigned char LedCode1[] = {0Xfe, 0Xfd, 0Xfb, 0Xf7, 0Xef, 0Xdf}; //正时针显示 unsigned char LedCode2[] = {0xdf, 0xef, 0xf7, 0xfb, 0xfd, 0xfe}; //逆时针显示 void DelayNS(unsigned char dly) //延时函数 { unsigned int i; for(; dly>0; dly--) for(i=0; i<1000; i++); } void main() //主函数 { TMOD = 0x01; //定时器0 计数方式1 TH0 = 0x00; //设置计数初值 TL0 = 0x00; ET0 = 1; //开定时器0中断 EA = 1; //开总中断 TR0 = 1; //开始计数 Direction = 0; //方向设置（顺） while(1) //等待中断 { } } void int_0() interrupt 2 //定时器1中断服务程序 { if(!DirContr) //方向判断 { DelayNS(10); while(!DirContr); //等待按键抬起 DelayNS(10); //消除松键抖动 Direction ^= 0x01; //转向取反 Speed = 3 ; //同时速度切换到最慢 } if(!SpeAdd) //速度加判断 { DelayNS(10); while(!SpeAdd); DelayNS(10); Speed++; if(Speed == 4) Speed = 1; MotoPa = 0; LedPa = 0; } if(!SpeSub) //速度减判断 { DelayNS(10); while(!SpeSub); DelayNS(10); Speed--; if(Speed == 0) Speed = 3; } tab++; if(tab == 70) { if(Direction) { P1 = MotoCode1[MotoPa++]; if(MotoPa == 4 ) MotoPa = 0; P3 = LedCode1[LedPa++]; if(LedPa == 6) LedPa = 0; } if(!Direction) { P1 = MotoCode2[MotoPa++]; if(MotoPa == 4 ) MotoPa = 0; P3 = LedCode2[LedPa++]; if(LedPa == 6) LedPa = 0; } tab = 0; } TF0=0; //清除计数中断标志位 TH0 = (65536 - (Speed *1500))/256; TL0 = (65536 - (Speed *1500))%256; }