t.i

使用18B20温度传感器的程序

#line 1 "T.c" /0
  
#line 1 "D:\学习软件\KEIL\C51\INC\STDIO.H" /0






 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 typedef unsigned int size_t;
 
 
 #pragma SAVE
 #pragma REGPARMS
 extern char _getkey (void);
 extern char getchar (void);
 extern char ungetchar (char);
 extern char putchar (char);
 extern int printf   (const char *, ...);
 extern int sprintf  (char *, const char *, ...);
 extern int vprintf  (const char *, char *);
 extern int vsprintf (char *, const char *, char *);
 extern char *gets (char *, int n);
 extern int scanf (const char *, ...);
 extern int sscanf (char *, const char *, ...);
 extern int puts (const char *);
 
 #pragma RESTORE
 
 
 
#line 1 "T.c" /0
 
  
#line 1 "D:\学习软件\KEIL\C51\INC\REG52.H" /0






 
 
 
 
 
 
 sfr P0    = 0x80;
 sfr P1    = 0x90;
 sfr P2    = 0xA0;
 sfr P3    = 0xB0;
 sfr PSW   = 0xD0;
 sfr ACC   = 0xE0;
 sfr B     = 0xF0;
 sfr SP    = 0x81;
 sfr DPL   = 0x82;
 sfr DPH   = 0x83;
 sfr PCON  = 0x87;
 sfr TCON  = 0x88;
 sfr TMOD  = 0x89;
 sfr TL0   = 0x8A;
 sfr TL1   = 0x8B;
 sfr TH0   = 0x8C;
 sfr TH1   = 0x8D;
 sfr IE    = 0xA8;
 sfr IP    = 0xB8;
 sfr SCON  = 0x98;
 sfr SBUF  = 0x99;
 
 
 sfr T2CON  = 0xC8;
 sfr RCAP2L = 0xCA;
 sfr RCAP2H = 0xCB;
 sfr TL2    = 0xCC;
 sfr TH2    = 0xCD;
 
 
 
 
 sbit CY    = PSW^7;
 sbit AC    = PSW^6;
 sbit F0    = PSW^5;
 sbit RS1   = PSW^4;
 sbit RS0   = PSW^3;
 sbit OV    = PSW^2;
 sbit P     = PSW^0;  
 
 
 sbit TF1   = TCON^7;
 sbit TR1   = TCON^6;
 sbit TF0   = TCON^5;
 sbit TR0   = TCON^4;
 sbit IE1   = TCON^3;
 sbit IT1   = TCON^2;
 sbit IE0   = TCON^1;
 sbit IT0   = TCON^0;
 
 
 sbit EA    = IE^7;
 sbit ET2   = IE^5;  
 sbit ES    = IE^4;
 sbit ET1   = IE^3;
 sbit EX1   = IE^2;
 sbit ET0   = IE^1;
 sbit EX0   = IE^0;
 
 
 sbit PT2   = IP^5;
 sbit PS    = IP^4;
 sbit PT1   = IP^3;
 sbit PX1   = IP^2;
 sbit PT0   = IP^1;
 sbit PX0   = IP^0;
 
 
 sbit RD    = P3^7;
 sbit WR    = P3^6;
 sbit T1    = P3^5;
 sbit T0    = P3^4;
 sbit INT1  = P3^3;
 sbit INT0  = P3^2;
 sbit TXD   = P3^1;
 sbit RXD   = P3^0;
 
 
 sbit SM0   = SCON^7;
 sbit SM1   = SCON^6;
 sbit SM2   = SCON^5;
 sbit REN   = SCON^4;
 sbit TB8   = SCON^3;
 sbit RB8   = SCON^2;
 sbit TI    = SCON^1;
 sbit RI    = SCON^0;
 
 
 sbit T2EX  = P1^1;  
 sbit T2    = P1^0;  
 
 
 sbit TF2    = T2CON^7;
 sbit EXF2   = T2CON^6;
 sbit RCLK   = T2CON^5;
 sbit TCLK   = T2CON^4;
 sbit EXEN2  = T2CON^3;
 sbit TR2    = T2CON^2;
 sbit C_T2   = T2CON^1;
 sbit CP_RL2 = T2CON^0;
 
 
#line 2 "T.c" /0
 
  
#line 1 "D:\学习软件\KEIL\C51\INC\ABSACC.H" /0






 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
#line 24 "D:\学习软件\KEIL\C51\INC\ABSACC.H" /1
  
  
  
  
 
#line 29 "D:\学习软件\KEIL\C51\INC\ABSACC.H" /0
 
 
 
 
 
 
 
#line 3 "T.c" /0
 
  
#line 1 "clock.h" /0
 
 
 
 
 extern void add_second(unsigned char *clock_curent); 
 extern void add_minite(unsigned char *clock_curent); 
 extern void add_hour(unsigned char *clock_curent); 
 
 
#line 4 "T.c" /0
 
  
#line 1 "ds18b20.h" /0
  
#line 1 "D:\学习软件\KEIL\C51\INC\REG52.H" /0






 
 
 
#line 10 "D:\学习软件\KEIL\C51\INC\REG52.H" /1
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
#line 1 "ds18b20.h" /0
#line 1 "ds18b20.h" /0
 
  
#line 1 "D:\学习软件\KEIL\C51\INC\ABSACC.H" /0






 
 
 
#line 10 "D:\学习软件\KEIL\C51\INC\ABSACC.H" /1
  
 
  
  
  
  
 
  
  
  
  
 
 
 
  
  
  
  
 
  
  
  
  
 
 
 
#line 2 "ds18b20.h" /0
#line 2 "ds18b20.h" /0
 
 sbit DQ = P1^0;
 void delay(int us); 
 bit reset18b20(void);
 bit readbit18b20(void);
 unsigned char readbyte18b20(void);
 void writebit18b20(bit databit);
 void writebyte18b20(unsigned char databyte);
#line 5 "T.c" /0
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 char text[] = {'I','o','L','O','V','E','u','Y','O','U',' ','I',' ','L','O','V','E',' ','Y','O','U','\n'};                                                                          
 char pacmanopen[] = {0x0E,0x07,0x03,0x01,0x03,0x07,0x0E,0x00,'\n'}; 
 char pacmanshut[] = {0x00,0x0F,0x1F,0x01,0x1F,0x0F,0x00,0x00,'\n'};
  unsigned char idata clock_curent[6]={1,2,3,4,0,1}; 
  unsigned char idata half=0,updata=1,temph,templ,t,temp[6];
 void wrcgchr(char *arrayptr, int offset);
 void wrcmd (char cmdcode);
 void lcd_init ();
 void pause(int num);
 void clearscreen ();
 void eat ();
 void wrdata (char ddata);
 void lcd_wait ();
 void disp(char pos,char tdata);
 void dispcurrenttime(void); 
 
 
 void main(void)
 {  
 unsigned int tmp;
 char *textptr = text,i;
 bit flag=0;
 IE=0x00; 
 IT0=1;	 
 TMOD=0X01; 
 IP=0X02;   
 TL0=0XAF; 
 TH0=0X3C;
 SP=0X60;
 IE=0x80; 
 TR0=1; 
 
 lcd_init();  
 
 while(1)
 {
 IE=0x80;
 do	
 flag=reset18b20();
 while(flag==1);	
 
 writebyte18b20(0xcc);
 writebyte18b20(0x44);
 delay(50);
 do	
 flag=reset18b20();
 while(flag==1);
 
 writebyte18b20(0xcc);
 writebyte18b20(0xbe);	
 templ=readbyte18b20();
 temph=readbyte18b20();
 for(i=0;i<6;i++)	
 t=readbyte18b20();
 
 






















 
 tmp=temph*256+templ;
 
 temp[4]='.';
 if(temph>=0xf8)
 {
 temp[0]='-';
 
 
 tmp=~tmp;
 tmp++;
 }
 else
 temp[0]='+';
 if(templ&0x08)	
 temp[5]='5';
 else
 temp[5]='0';
 
 
 tmp>>=4;
 for(i=3;i>0;i--)
 {
 temp[i]=(tmp%10)+'0';
 tmp=tmp/10;
 
 
 }
 
 for(i=0;i<6;i++)
 disp(10+i,temp[i]);		  
 
 
 IE=0X82;
 
 
 if(updata==1)
 {
 add_second(clock_curent);
 updata=0;
 dispcurrenttime();
 }
 }
 
 
 
 for (;;)                                 
 { textptr = text;
 while (*textptr!= '\n')              
 { 
 wrdata(*textptr++);	
 pause(2000);
 }
 pause(5000);
 eat();                                
 pause(5000);
 }  
 }
 
 void dispcurrenttime(void) 
 {	
 if(clock_curent[5]==0)
 disp(0,11+'0');	 
 else 
 disp(0,clock_curent[5]+'0'); 
 disp(1,clock_curent[4]+'0');
 disp(2,10+'0');
 disp(3,clock_curent[3]+'0'); 
 disp(4,clock_curent[2]+'0');
 disp(5,10+'0');
 disp(6,clock_curent[1]+'0'); 
 disp(7,clock_curent[0]+'0');
 }
 
 void disp(char pos,char tdata)
 {
 wrcmd(0x80+pos);
 wrdata(tdata);
 
 }
 
 void service_second(void) interrupt 1  
 { 
 TR0=0;  	
 TL0=0XAF;
 TH0=0X3C;
 TR0=1;
 half++;
 if(half==2)
 {
 updata=1;
 half=0;
 }
 }
 
 void eat ()
 { 
 int count = 0x16-1, eatflag = 0 , tmp;
 while (count >= 0)
 { 
 wrcmd(0x80 + count);                        
 eatflag ? wrdata(0x00):  wrdata(0x01);               
 eatflag ^= 1;                                       
 for (tmp = count; tmp <=0x16; ++tmp)     
 wrdata(' ');
 count--;                                             
 pause(4000);
 }
 clearscreen();                                          
 }
 
 void pause(int num)
 { 
 while(num--)
 ;
 } 
 
 void lcd_init (void)
 {
 wrcmd(0x38);                     
 wrcmd(0x08+0x04);                 
 wrcmd(0x04+0x02);                    
 wrcgchr(pacmanopen, 0);                     
 wrcgchr(pacmanshut, 8);                     
 wrcmd(0x80);                       
 }
 
 void clearscreen ()
 { 
 wrcmd(0x01);
 wrcmd(0x80);
 }
 
 void wrcmd (char cmdcode)
 { 
 lcd_wait(); 
   ((unsigned char volatile xdata *) 0) [0x0000]=cmdcode;
 
 }
 
 void wrdata (char ddata)
 {
 lcd_wait();
   ((unsigned char volatile xdata *) 0) [0x0001]=ddata;
 
 }
 
 void wrcgchr(char *arrayptr, int offset)
 {
 wrcmd(0x40 + offset);               
 while (*arrayptr != '\n') 
 wrdata (*arrayptr++);  
 }
 
 void lcd_wait ()
 { char status;
 do
 {  	P0=0xff;
 status=P0;       
 } 
 while (status & 0x80);    
 }