基于51單片機直流電機轉速測速系統（PG160128液晶顯示+程序）

ID:656668 · 發表于 2020-3-29 11:45

51單片機直流電機轉速測速系統PG160128液晶顯示+程序
可實現轉速的控制，測量，轉速的顯示
PROTEUS仿真如下：

#include <showfun.h>
#include <stdio.h>

extern char fnLCMInit(); // LCM 初始化
extern void at(unsigned char x,unsigned char y);/*設定文本x,y值*/
extern void cls();    // 清屏
extern void charout(unsigned char *str); //ASCII(8*8) 顯示函數
extern void fnSetPos(unsigned char urow, unsigned char  ucol); // 設置當前地址
extern uchar dprintf(uchar x,uchar y,char *fmt);// ASCII(8*16) 及漢字(16*16) 顯示函數
extern uchar fnPR12(uchar uCmd); // 寫無參數的指令
extern uchar fnPR13(uchar uData); // 寫數據
extern unsigned int Adc0832(unsigned char channel);
extern void Line( unsigned char x1, unsigned char y1, unsigned char x2, unsigned char y2, bit Mode);
extern void Pixel(unsigned char PointX,unsigned char PointY, bit Mode);

uchar dsp[10]={0,0,0,0,0,0,0,0,0,0,};
char abc[3]={0,0,0,};
uchar key=0;
uint a=100;
uchar n=5;
uchar count=1;
uint k1=0;

uchar GeyKey();
void delay(uchar i);
void control();

main()
{

fnLCMInit();
fnSetPos(0,0);
dprintf(0,0,"直流電機加-減速及測速系統");
dprintf(0,12,"鍵盤+:步長加速");
dprintf(0,24,"鍵盤-:步長減速");
dprintf(0,36,"鍵盤=:順時針轉");
dprintf(0,48,"鍵盤on/c:逆時針轉");

   dprintf(0,72,"方向:");
       dprintf(0,84,"轉速:");

   P1_1=0;
   TMOD=0x15;
   TH1=0x3c;
   TL1=0xb0;
   TH0=0x00;
   TL0=0x00;
   ET0=1;
   ET1=1;
   TR0=1;
   TR1=1;

while(1)
{  key=GeyKey();
   switch(key)
   { case '1': {       a=10;
                              //sprintf(abc,"%3.2f",a/255.0);
                        dprintf(0,96,"  5 r/min");
                              //dprintf(0,96,abc);
                              dprintf(60,96,"r/min");
                              break;    }
         case '2': {       a=25;dprintf(0,96,"  25 r/min"); break;    }
   case '3': {       a=40; dprintf(0,96," 40 r/min"); break;    }
   case '4': {       a=55; dprintf(0,96," 60 r/min"); break;    }
   case '5': {       a=70; dprintf(0,96," 80 r/min"); break;    }
   case '6': {       a=90; dprintf(0,96,"100 r/min"); break;    }
   case '7': {       a=110; dprintf(0,96,"120 r/min"); break;    }
   case '8': {       a=130; dprintf(0,96,"135 r/min"); break;    }
   case '9': {       a=150; dprintf(0,96,"150 r/min"); break;    }
         case '+': {       dprintf(0,72,"方向: 順時針");
                              control();
break;
}
         case '-': {       P1_0=0;
                        dprintf(0,72,"方向: 逆時針");
                           control();
                        break;
}
         case '=': {P1_0=1;dprintf(0,72,"方向: 順時針");break;}
         case 'c': {P1_0=0;dprintf(0,72,"方向: 逆時針");break;}
         case '/': {dprintf(0,72,"方向: 順時針");
                              control();}
   default:  break;
      }
}
}

uchar GeyKey()
{
P1_4=0;
P1_5=1;
P1_6=1;
P1_7=1;
P3_0=1;
P3_1=1;
P3_2=1;
P3_3=1;
_nop_();_nop_();
if(!P3_0)return '7';
if(!P3_1)return '8';
if(!P3_2)return '9';
if(!P3_3)return '/';
P1_4=1;
P1_5=0;
P1_6=1;
P1_7=1;
_nop_();_nop_();
if(!P3_0)return '4';
if(!P3_1)return '5';
if(!P3_2)return '6';
if(!P3_3)return '*';

P1_4=1;
P1_5=1;
P1_6=0;
P1_7=1;
_nop_();_nop_();
if(!P3_0)return '1';
if(!P3_1)return '2';
if(!P3_2)return '3';
if(!P3_3)return '-';

P1_4=1;
P1_5=1;
P1_6=1;
P1_7=0;
_nop_();_nop_();
if(!P3_0)return 'c';
if(!P3_1)return '0';
if(!P3_2)return '=';
if(!P3_3)return '+';

return 0;
}

void delay(uchar i)
{  uchar j,k;
for(;i>0;i--)
for(j=15;j>0;j--)
for(k=11;k>0;k--);
}

void time()interrupt 3
{
   TR1=0;
   count++;
   k1+=TL0;
   if(count==51)
   {
      sprintf(dsp,"%3d",k1);
   dprintf(0,108,dsp);
      dprintf(60,108,"r/min");
   count=1;
      k1=0;
   }
   TH1=0x3c;
   TL1=0xb0;
   TH0=0x00;
   TL0=0x00;
   TR1=1;

}

void control()
{
   EA=1;
   while(1)
   { if(a>=150)
            a=150;
if(a<=10)
      a=10;
   P1_1=0;
   delay(160-a);
   P1_1=1;
   delay(a);
   key=GeyKey();
   if(key=='-') a-=n;
   else
   if(key=='+') a+=n;
   else
   if(key=='=')
   {  P1_0=1;
   dprintf(0,72,"方向: 順時針");
   }
   else
   if(key=='c')
   {  P1_0=0;
   dprintf(0,72,"方向: 逆時針");
   }
   else
   if(key=='*')
   { P1_1=0;
      break;
   }
   else
   if(key!=0)
   break;
   }
   EA=0;
}