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本帖最后由 lamp波波 于 2016-8-7 13:08 编辑
#include #define uchar unsigned char #define uint unsigned int ***it DS=P2^4; ***it dot=P0^7; //小数点 uint temp; // variable of temperature uchar flag1; // sign of the result positive or negative code unsigned char tab[]={0x40, 0x79, 0x24, 0x30, 0x19, 0x12, 0x02, 0x78, 0x00, 0x10}; uint ad=0, ads;//数字信号变量 uchar StrTab[3]; void delay(uint count) //delay { uint i; while(count) { i=200; while(i>0) i--; count--; } } void dsreset(void) //send reset and initialization command { uint i; DS=0; i=103; while(i>0)i--; DS=1; i=4; while(i>0)i--; } bit tmpreadbit(void) //read a bit { uint i; bit dat; DS=0;i++; //i++ for delay DS=1;i++;i++; dat=DS; i=8;while(i>0)i--; return (dat); } uchar tmpread(void) //read a byte date { uchar i,j,dat; dat=0; for(i=1;i<=8;i++) { j=tmpreadbit(); dat=(j<<7)|(dat>>1); //????????????,?????????DAT? } return(dat); } void tmpwritebyte(uchar dat) //write a byte to ds18b20 { uint i; uchar j; bit testb; for(j=1;j<=8;j++) { testb=dat&0x01; dat=dat>>1; if(testb) //write 1 { DS=0; i++;i++; DS=1; i=8;while(i>0)i--; } else { DS=0; //write 0 i=8;while(i>0)i--; DS=1; i++;i++; } } } void tmpchange(void) //DS18B20 begin change { dsreset(); delay(1); tmpwritebyte(0xcc); // address all drivers on bus tmpwritebyte(0x44); // initiates a single temperature conversion } uint tmp() //get the temperature { float tt; uchar a,b; dsreset(); delay(1); tmpwritebyte(0xcc); tmpwritebyte(0xbe); a=tmpread(); b=tmpread(); temp=b; temp<<=8; //two byte compose a int variable temp=temp|a; tt=temp*0.0625; temp=tt*10+0.5; return temp; } void display(uint temp) { uint i; ad = temp; ads=ad/100; StrTab[2]=tab[ads]; ad=ad%100; ads=ad/10; StrTab[1]=tab[ads]; ad=ad%10; ads=ad; StrTab[0]=tab[ads]; for(i=0; i<100; i++) { P2=0x01; P0=StrTab[2]; dot=1; delay(5); P2=0x00; P2=0x02; P0=StrTab[1]; delay(5); P2=0x00; P2=0x04; P0=StrTab[0]; dot=1; delay(5); P2=0x00; } } void main() { uchar a; while(1) { tmpchange(); for(a=10;a>0;a--) { display(tmp()); } } } 
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#include
#define uchar unsigned char #define uint unsigned int ***it DS=P2^4; ***it dot=P0^7; //小数点 uint temp; // variable of temperature uchar flag1; // sign of the result positive or negative code unsigned char tab[]={0x40, 0x79, 0x24, 0x30, 0x19, 0x12, 0x02, 0x78, 0x00, 0x10}; uint ad=0, ads;//数字信号变量 uchar StrTab[3]; void delay(uint count) //delay { uint i; while(count) { i=200; while(i>0) i--; count--; } } void dsreset(void) //send reset and initialization command { uint i; DS=0; i=103; while(i>0)i--; DS=1; i=4; while(i>0)i--; } bit tmpreadbit(void) //read a bit { uint i; bit dat; DS=0;i++; //i++ for delay DS=1;i++;i++; dat=DS; i=8;while(i>0)i--; return (dat); } uchar tmpread(void) //read a byte date { uchar i,j,dat; dat=0; for(i=1;i<=8;i++) { j=tmpreadbit(); dat=(j<<7)|(dat>>1); //????????????,?????????DAT? } return(dat); } void tmpwritebyte(uchar dat) //write a byte to ds18b20 { uint i; uchar j; bit testb; for(j=1;j<=8;j++) { testb=dat&0x01; dat=dat>>1; if(testb) //write 1 { DS=0; i++;i++; DS=1; i=8;while(i>0)i--; } else { DS=0; //write 0 i=8;while(i>0)i--; DS=1; i++;i++; } } } void tmpchange(void) //DS18B20 begin change { dsreset(); delay(1); tmpwritebyte(0xcc); // address all drivers on bus tmpwritebyte(0x44); // initiates a single temperature conversion } uint tmp() //get the temperature { float tt; uchar a,b; dsreset(); delay(1); tmpwritebyte(0xcc); tmpwritebyte(0xbe); a=tmpread(); b=tmpread(); temp=b; temp<<=8; //two byte compose a int variable temp=temp|a; tt=temp*0.0625; temp=tt*10+0.5; return temp; } void display(uint temp) { uint i; ad = temp; ads=ad/100; StrTab[2]=tab[ads]; ad=ad%100; ads=ad/10; StrTab[1]=tab[ads]; ad=ad%10; ads=ad; StrTab[0]=tab[ads]; for(i=0; i<100; i++) { P2=0x01; P0=StrTab[2]; dot=1; delay(5); P2=0x00; P2=0x02; P0=StrTab[1]; delay(5); P2=0x00; P2=0x04; P0=StrTab[0]; dot=1; delay(5); P2=0x00; } } void main() { uchar a; while(1) { tmpchange(); for(a=10;a>0;a--) { display(tmp()); } } } |
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#include
#define uchar unsigned char #define uint unsigned int ***it DS=P2^4; ***it dot=P0^7; //小数点 uint temp; // variable of temperature uchar flag1; // sign of the result positive or negative code unsigned char tab[]={0x40, 0x79, 0x24, 0x30, 0x19, 0x12, 0x02, 0x78, 0x00, 0x10}; uint ad=0, ads;//数字信号变量 uchar StrTab[3]; void delay(uint count) //delay { uint i; while(count) { i=200; while(i>0) i--; count--; } } void dsreset(void) //send reset and initialization command { uint i; DS=0; i=103; while(i>0)i--; DS=1; i=4; while(i>0)i--; } bit tmpreadbit(void) //read a bit { uint i; bit dat; DS=0;i++; //i++ for delay DS=1;i++;i++; dat=DS; i=8;while(i>0)i--; return (dat); } uchar tmpread(void) //read a byte date { uchar i,j,dat; dat=0; for(i=1;i<=8;i++) { j=tmpreadbit(); dat=(j<<7)|(dat>>1); //????????????,?????????DAT? } return(dat); } void tmpwritebyte(uchar dat) //write a byte to ds18b20 { uint i; uchar j; bit testb; for(j=1;j<=8;j++) { testb=dat&0x01; dat=dat>>1; if(testb) //write 1 { DS=0; i++;i++; DS=1; i=8;while(i>0)i--; } else { DS=0; //write 0 i=8;while(i>0)i--; DS=1; i++;i++; } } } void tmpchange(void) //DS18B20 begin change { dsreset(); delay(1); tmpwritebyte(0xcc); // address all drivers on bus tmpwritebyte(0x44); // initiates a single temperature conversion } uint tmp() //get the temperature { float tt; uchar a,b; dsreset(); delay(1); tmpwritebyte(0xcc); tmpwritebyte(0xbe); a=tmpread(); b=tmpread(); temp=b; temp<<=8; //two byte compose a int variable temp=temp|a; tt=temp*0.0625; temp=tt*10+0.5; return temp; } void display(uint temp) { uint i; ad = temp; ads=ad/100; StrTab[2]=tab[ads]; ad=ad%100; ads=ad/10; StrTab[1]=tab[ads]; ad=ad%10; ads=ad; StrTab[0]=tab[ads]; for(i=0; i<100; i++) { P2=0x01; P0=StrTab[2]; dot=1; delay(5); P2=0x00; P2=0x02; P0=StrTab[1]; delay(5); P2=0x00; P2=0x04; P0=StrTab[0]; dot=1; delay(5); P2=0x00; } } void main() { uchar a; while(1) { tmpchange(); for(a=10;a>0;a--) { display(tmp()); } } } |
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用的是AT89S51单片机
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用的是51单片机，楼主有做好的程序吗，我毕设就是这个
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2018-5-8 20:14:51
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