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標題: PWM調速單片機源碼 [打印本頁]

作者: 我是小溫 時間: 2017-11-16 21:11
標題: PWM調速單片機源碼
#include<reg51.h>
#include<stdio.h>
sbit DJA=P1^0;
sbit DJB=P1^1;
sbit S1=P3^2;
sbit S2=P3^3;
bit flag;
unsigned char number;
void delay (unsigned int i)
{
      unsigned int k;
      for(k=0;k<i;k++);
}
void pwm1()
{
      DJB=0;
      DJA=1;
      delay(720);
      DJA=0;
      delay(1680);
}
void pwm2()
{
      DJB=0;
      DJA=1;
      delay(1250);
      DJA=0;
      delay(1250);
}
void pwm3()
{
      DJB=0;
      DJA=1;
      delay(1680);
      DJA=0;
      delay(1680);
}
void pwm4()
{
      DJA=0;
      DJB=1;
      delay(720);
      DJB=0;
      delay(1680);
}
void pwm5()
{
      DJA=0;
      DJB=1;
      delay(1250);
      DJB=0;
      delay(1250);
}
void pwm6()
{
      DJA=0;
      DJB=1;
      delay(1680);
      DJB=0;
      delay(720);
}
void main()
{
      flag=0;
      number=0x00;
      DJA=0;
      DJB=0;
      while(1)
      {
            if(S1==0)
            {
                     delay(1200);
                     if(S1==0)
                     {
                              while(!S1);
                              flag=~flag;
                     }
            }
                     if(S2==0)
                     {
                     delay(1200);
                     if(S2==0)
                     {
                                    while(!S2);
                                    if(number<=3)
                                    number++;
                                    else number=0x01;
                     }
                     }
                     if(!flag)
                     {
                              switch(number)
                              {
                                    case 0x01:pwm1();break;
                                    case 0x02:pwm2();break;
                                    case 0x03:pwm3();break;
                                    default:;
                              }
                     }
                     else
                     {
                              switch(number)
                              {
                                    case 0x01:pwm1();break;
                                    case 0x02:pwm2();break;
                                    case 0x03:pwm3();break;
                                    default:;
                              }
                     }
            }

      }

作者: 我是小溫 時間: 2017-11-16 21:11
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