麻烦各位大神看看有什么问题，电路不工作，无法设置温度 -

标题: 麻烦各位大神看看有什么问题，电路不工作，无法设置温度 [打印本页]

作者: kaili 时间: 2018-5-17 12:30
标题: 麻烦各位大神看看有什么问题，电路不工作，无法设置温度
#include<reg52.h>#include<reg52.h>
#include<math.h>
float R;
float Kp;
float T;
float Ti;
float Td;
float e2;
float e1,e;
float a0,a1,a2;
#define ui unsigned int
#define uc unsigned char
sbit bj=P2^4;
sbit lcden=P2^7;
sbit lcdrs=P2^6;
sbit lcdrw=P2^5;
sbit control=P2^3;
char lshi,lge,hshi,hge;
uc num,flag;
ui temp;
sbit dsio=P3^7;
//延时
void delay(ui z)
{
      uc x,y;
      for(x=z;x>0;x--)
            for(y=110;y>0;y--);
}
//DS18B20控制
void dsinit()
{
      uc i;
      dsio=0;
      i=70;
      while(i--);
      dsio=1;
      i=4;
      while(i--);
}
void dswritebyte(uc dat)
{
      uc i,j;
      for(j=0;j<8;j++)
      {
            dsio=0;
            i++;
            dsio=dat&0x01;
            i=6;
            while(i--);
            dsio=1;
            dat>>=1;
      }
}
uc dsreadbyte()
{
      uc i,j,byte,b;
      for(j=0;j<8;j++)
      {
            dsio=0;
            i++;
            dsio=1;
            i++;i++;
            b=dsio;
            byte=(byte>>1)|(b<<7);
            i=4;
            while(i--);
      }
      return byte;
}
void dschangetemp()
{
      dsinit();
      delay(1);
      dswritebyte(0xcc);
      dswritebyte(0x44);

}
void dsreadtemp()
{
      dsinit();
      delay(1);
      dswritebyte(0xcc);
      dswritebyte(0xbe);
}
ui gettemp()
{
      int temp;
      uc h,l;
      dschangetemp();
      dsreadtemp();
      l=dsreadbyte();
      h=dsreadbyte();
      temp=h;
      temp<<=8;
      temp|=l;
      temp=temp*0.0625*100+0.5;
      return temp;
}
//LCD控制程序
void lcdwritecom(uc com)
{
      lcdrs=0;
      P0=com;
      delay(10);
      lcden=1;
      delay(10);
      lcden=0;
}
void lcdwritedata(uc date)
{
      lcdrs=1;
      P0=date;
      delay(10);
      lcden=1;
      delay(10);
      lcden=0;
}
void lcdinit()
{
      lcdrw=0;
      lcden=0;
      lcdwritecom(0x38);
      lcdwritecom(0x0c);
      lcdwritecom(0x06);
      lcdwritecom(0x01);
}
//LCD显示
void lcddisplay(int temp)
{
      ui  tab[]={0,0,0,-2,0,0};
      lcdwritecom(0x80);
      lcdwritedata('+');
      tab[0]=temp/10000;
      tab[1]=temp%10000/1000;
      tab[2]=temp%1000/100;
      tab[4]=temp%100/10;
      tab[5]=temp%10;
      lcdwritecom(0x81);
      for(num=0;num<6;num++)
      {
            lcdwritedata('0'+tab[num]);
      }
}
//报警
void baojing()
{
      float t;
      t=gettemp();
      if(t<3000||t>8500)
      bj=0;
      else bj=1;
}
void adjust()
{
      delay(100);
      flag++;
      if(flag==5)flag=1;
      if(flag==1)
      {
            lcdwritecom(0x80+0x44);
            lcdwritecom(0x0f);
      }
      if(flag==2)
      {
            lcdwritecom(0x80+0x45);
            lcdwritecom(0x0f);
      }
      if(flag==3)
      {
            lcdwritecom(0x80+0x47);
            lcdwritecom(0x0f);
      }
      if(flag==4)
      {
            lcdwritecom(0x80+0x48);
            lcdwritecom(0x0f);
      }
}
void inc()
{
      delay(100);
      switch(flag)
      {
            case 1:lshi++; if(lshi==10)lshi=0;
                                             lcdwritedata('0'+lshi);
                                             lcdwritecom(0x10);
                                             break;
            case 2:lge++; if(lge==10)lge=0;
                                             lcdwritedata('0'+lge);
                                             lcdwritecom(0x10);
                                             break;
            case 3:hshi++; if(hshi==10)hshi=0;
                                             lcdwritedata('0'+hshi);
                                             lcdwritecom(0x10);
                                             break;
            case 4:hge++; if(hge==10)hge=0;
                                             lcdwritedata('0'+hge);
                                             lcdwritecom(0x10);
                                             break;
      }
}
void dec()
{
      delay(100);
      switch(flag)
      {
            case 1:lshi--; if(lshi<0)lshi=9;
                                             lcdwritedata('0'+lshi);
                                             lcdwritecom(0x10);
                                             break;
            case 2:lge--; if(lge<0)lge=9;
                                             lcdwritedata('0'+lge);
                                             lcdwritecom(0x10);
                                             break;
            case 3:hshi--; if(hshi<0)hshi=9;
                                             lcdwritedata('0'+hshi);
                                             lcdwritecom(0x10);
                                             break;
            case 4:hge--; if(hge<0)hge=9;
                                             lcdwritedata('0'+hge);
                                             lcdwritecom(0x10);
                                             break;
      }
}
//键盘扫描
void keyscan()
{
      uc test,num;
      num=0;
      test=P1;
      if(test!=0xff)
      delay(5);
      test=P1;
      if(test==0xf7)

      {
            while(P1!=0xff);
            num++;
            while(1)
            {
                     test=P1;
                     if(test!=0xff)
                     delay(5);
                     test=P1;
                     if(test!=0xff)
                     {
                              if(test==0xf7)
                                    num++;
                                    if(num==2)
                                    {       lcdwritecom(0x0c);
                                             break;}
                              switch(test)
                              {
                                    case 0xfe:adjust();
                                                      break;
                                    case 0xfd:inc();
                                                      break;
                                    case 0xfb:dec();
                                                      break;
                              }
                     }
                     while(P1!=0xff);

            }
            }
}
//PID
void PIDinit()
{

         Kp=2;Ti=4;Td=1;T=1;R=25;
         a0=Kp*(1+T/Ti+Td/T);
         a1=-Kp*(1+(2*Td)/T);
         a2=Kp*(Td/T);
         e2=e1=0;
}
void PIDdeal()
{
      float y       ,u ;
      y=gettemp();
      e=y/100-R;
      u=a0*e+a1*e1+a2*e2;
      e2=e1;e1=e;
      if(u>0.5||u<-0.5)
      control=0;
      else control=1;
}
void main()
{
      uc code tab2[]="SET:20~50C";
      uc i;
      TMOD=0x01;
      TH0=(65535-10900)/256;
      TL0=(65535-10900)%256;
      ET0=1;
      TR0=1;
      lcdinit();
      lcdwritecom(0x87);
      lcdwritedata('C');
      lcdwritecom(0x80+0x40);
      for(i=0;i<10;i++)
            lcdwritedata(tab2) ;
      lshi=2;lge=0;hshi=5;hge=0;
      while(1)
      {
            lcddisplay(gettemp());
            baojing();
         keyscan() ;
            EA=1; while(1);
      }
}
void t0() interrupt 1
{
      uc i;
      TH0=(65535-10900)/256;
      TL0=(65535-10900)%256;
      i++;
      if(i==100)
      {
         void PIDinit();
         void PIDdeal();
      }
}

作者: zhanghyg 时间: 2018-5-18 14:46

你的程序死在while(1)这里了。还有调用子程序不用加void

欢迎光临 (http://www.51hei.com/bbs/)