湖北省2018年单片机省赛程序(word文档形式).docx

include#include #includettdefine uint unsigned int#define uchar unsigned char ttdefine outO PO"define key P3
〃°Cpr89x52仃〃°ii Jintrins，fA%b//Ifu^AOuDfU'da//l^u^AxOuDIH'd^
//H'baoutOPPOeU//1lt)5keyi9P3dU

/*2%%0HQ»uNiOnOllunl»O.1125♦/sbit SA2=P2AO; //SA2Dj3nEeOCe^0 sbit SA3=P2A1;//SA3 o3pEedCe?10sbit SA4=P2A2;//SA43oOCe^10sbit LED1=P1A6;sbit LED7=P1A7;sbit DQ=P2人7; // DS18B2OEy%YiB
ttdefine cp_10cm 13616
#define cp_15cm 20430
//^°^01OcmEuDeAo3aEy
//Q°%015cmEuDeAd3aEy
sbit LCD_RST=P1AO; sbit LCD_CS2=P1A1; sbit LCD_CS1=P1A2;
sbit LCD_E=P1A3;
sbit LCD_WR=P1A4;
sbit LCD_RS=P1A5;
//TG12864/I»HE
//TG128646d°eXEA^-Ni
//TG12864x6°eZEA^-Ni
//TG12864^AUHE
//TG12864 HA£ -l£©/D，£' 0£©DA5ANidn1lE
//TG12864 ^Yf lfO/d^ifOfONibnUE
sbit DR=P2A3;
sbit CP=P2A4;
//DR=0 OOx? DR=1 xox5
uchar keynum;
//%uO|i
uchar keystate;
//o，%ux%
uchar bmpstate=O;
〃u土q"姑¥x\
uchar hour=0;
uchar min=0;
uchar sec=O;
//E± //•o //Ae
uchar count=0;
ucharled_count=0;
uchar ledstate=O;
//H-E±%XEEyZE-r
//LEDl£A&ir£±4。
//ledstate=O LED^wEAE, ledstate=l LED1EAE,
//uint cp_count=0;
//2^^0^»u%XEEy/E-r
keystate=2;//x9^eA-o，IPD§x1-switch(keypress) //OeXiiOncase 0xee:keynum=7;break;//oz%u7case 0xde:keynum=8;break;//o，%u8case 0xbe:keynum=9;break;//o，%u9case 0x7e:keynum=ll;break;//o/%u1UAicase 0xed:keynum=4;break;〃°'%(j4case 0xdd:keynum=5;break;//°z%u5
case 0xbd:keynum=6;break;//o，%u6case 0x7d:keynum=12;break;//o，%uEeOAcase Oxeb:keynum=l;break;//°z%ulcase 0xdb:keynum=2;break;//o，%u2case Oxbb:keynum=3;break;//O，%u3case 0x7b:keynum=13;break;//o，%u>2^ Ncase 0xe7:keynum=0;break;//o/%u0case 0xd7:keynum=14;break;//o，%uystate=O;}/***********』••二 to, ,• £+ ]O m s************/void timeO_init()(
TMOD=0x01;//Ee1)"T0PA£E%l£-l6l»1]"E±%XEE±^4-
TL0=(uint)(-110592/12)%256; //EedAU"E±E±%a3£Ey
TH0=(uint)(-110592/12)/256;
ETO=TRO=1;//0D1lTi2XEd
EA=1;//dDHk0dZExUd^10£-d5/Ed}
TMOD=Oxll;
TLl=0xf6;
THl=Oxff;
TR1=O;
ET1=1;
EA=1;}7

*******巽典。（：************/
void open(uint pulse)
DR=0;
while(pulse-)CP=~CP; delayus(lO);void close(uint pulse) (DR=1; while(pulse-) (CP=~CP; delayus(lO);
) void dispay_time()/*
/*
/*

/*
****************
******************

writeAscii(6,0,0,shuzi_ZM[hour/10]);//00
writeAscii(6,8,0,shuzi_ZM[hour%10]);
writeAscii(6,16,0,shuzi_ZM[ll]);//-writeAscii(6,24,0,shuzi_ZM[min/10]);//00 writeAscii(6,32,0,shuzi_ZM[min%10]);
writeAscii(6,40,0,shuzi_ZM[ll]);〃-writeAscii(6,48,0,shuzi_ZM[sec/10]);//00 writeAscii(6,56,0,shuzi_ZM[sec%10]); writeAscii(6,104,0,shuzi_ZM[temper%100/10]); writeAscii(6,112,0,shuzi_ZM[temper%10]);}void bmp2() //l%2TOE%( writeHan(0,0,0,hanzi_ZM[0]);〃££0Tni» writeHan(0,16,0,hanzi_ZM[l]);writeHan(0,32,0,hanzi_ZM ⑵)； writeHan(0,48,0,hanzi_ZM[3]);writeAscii(0,64,0,shuzi_ZM[10]); //£? writeAscii(0,72,0,shuzi_ZM[big+smalj); //5writeHan(2,0,0/hanzi_ZM[5]);//DjDI3nb> writeHan(2,16,0zhanzi_ZM[6]);
writeHan(2,32,0,hanzi_ZM[2]);writeHan(2,48,0,hanzi_ZM[3]); writeAscii(2,64,0,shuzi_ZM[10]); //: writeAscii(2,72/0,shuzi_ZM[smal]); //3writeHan(4/0,0,hanzi_ZM[4]);//，6DPnl» writeHan(4,16,0,hanzi_ZM[6J);
writeHan(4,32,0,hanzi_ZM[2]);writeHan(4,48,0,hanzi_ZM[3]); writeAscii(4,64,0,shuzi_ZM[10]); //: writeAscii(4,72/0,shuzi_ZM[big]); //
dispay_time();}void bmp3()(writeHan(0,0,0,hanzi_ZM[2]);/尸口以 writeHan(0,16,0,hanzi_ZM[6]);writeAscii(0,32,0,shuzi_ZM[10]); //: writeHan(0,40,0,hanzi_ZM[5]);//DjDf3n writeHan(0,56,0zhanzi_ZM[6]);
writeHan(0,72,0,hanzi_ZM [2])writeHan(2,0,0,hanzi_ZM[2]);// rA/eM writeHan(2,16,0,hanzi_ZM[7]);writeHan(2,32,0,hanzi_ZM[8]); writeAscii(2,48z0zshuzi_ZM[10]); //£?
if(chepai_flag>=l) writeAscii(2,56,0,shuzi_ZM[chepai[0]]);if(chepai_flag>=2) writeAscii(2/64,0,shuzi_ZM[chepai[l]]);if(chepai_flag>=3) writeAscii(2,72,0,shuzi_ZM[chepai[2]]);writeHan(4,0/0,hanzi_ZM[10]); //EeOCE±%a writeHan(4,16z0,hanzi_ZM[ll]);
writeHan(4,32,0,hanzi_ZM[12]);
writeHan(4z48,0zhanzi_ZM[13]);
if(chepai_flag==4)( writeAscii(4,64,0,shuzi_ZM[hour_in/10]);//EeOCE± writeAscii(4,72,0,shuzi_ZM[hour_in%10]);writeAscii(4,80,0,shuzi_ZM[ll]);//-writeAscii(4,88,0/shuzi_ZM[minJn/10]);//EedC-d writeAscii(4/96,0,shuzi_ZM[min_in%10]);writeAscii(4,104,0,shuzi_ZM[ll]);//-writeAscii(4,112,0,shuzi_ZM[sec_in/10]);//EeOCAe writeAscii(4,120z0,shuzi_ZM[sec_in%10]);
)
dispay_time();}void bmp4(){writeHan(0,0/0,hanzi_ZM[2]);/^piDf writeHan(0/ 16,0,hanzi_ZM [6]);writeAscii(0,32,0,shuzi_ZM[10]); //: writeHan(0,40,0,hanzi_ZM[4]);//zdD(3n writeHan(0,56,0,hanzi_ZM[6]);
writeHan(0,72,0,hanzi_ZM [2]);writeHan(2,0,0,hanzi_ZM[2]);/^pAxE9A writeHan(2,16/0/hanzi_ZM[7]);writeHan(2,32,0,hanzi_ZM[8]);
writeAscii(2/48,0,shuzi_ZM[10]); //£g
if(chepai_flag>=l)
writeAscii(2,56,0,shuzi_ZM[chepai[0]]);if(chepai_flag>=2) writeAscii(2,64,0,shuzi_ZM[chepai[l]]);if(chepai_flag>=3) writeAscii(2,72,0,shuzi_ZM[chepai[2]]);writeHan(4,0,0,hanzi_ZM[10]); //EedCE±%a writeHan(4,16,0,hanzi_ZM[ll]);
writeHan(4,32/0,hanzi_ZM[12]);
writeHan(4,48,0,hanzi_ZM[13]);
if(chepai_flag==4)( writeAscii(4/64,0,shuzi_ZM[hour_in/10]);//EeOCE± writeAscii(4,72,0,shuzi_ZM[hour_in%10]);writeAscii(4,80,0,shuzi_ZM[ll]);〃-writeAscii(4,88,0,shuzi_ZM[minJn/10]);//EedCO writeAscii(4,96,0,shuzi_ZM[min_in%10]);writeAscii(4,104,0,shuzi_ZM[ll]);〃-writeAscii(4/112z0/shuzi_ZM[sec_in/10]);//^edcAe writeAscii(4,120/0,shuzi_ZM[sec_in%10]);
}
dispay_time();)void bmp5()(writeHan(0,0,0,hanzi_ZM[2]);/^nA/E5A writeHan(0,16,0,hanzi_ZM[7]); writeHan(0,32,0,hanzi_ZM[8]); writeAscii(0,48,0,shuzi_ZM[10]); //£?
if(chepai_flag>=l)writeAscii(0,56,0,shuzi_ZM[chepai[0]]);if(chepai_flag>=2) writeAscii(0,64,0,shuzi_ZM[chepai[l]]);if(chepai_flag>=3)writeAscii(0,72,0,shuzi_ZM[chepai[2]]);
if(error==l) writeHan(2,0,0,hanzi_ZM[2]);/^nAxE%i2a，ild! writeHan(2,16,0,hanzi_ZM[7]);writeHan(2,32/0/hanzi_ZM[17]);writeHan(2,48,0,hanzi_ZM[18]);writeHan(2,64,0,hanzi_ZM[19]);writeHan(2/80/0/hanzi_ZM [20]);writeHan(2,96,0hanzi_ZM[21]);
}
dispay_time();)void bmp6(){ writeHan(0,0z0,hanzi_ZM[2]);/^nD( writeHan(0,16,0,hanzi_ZM[6]);
writeAscii(0/32/0/shuzi_ZM[10]); //£5writeHan(2/0/0,hanzi_ZM[10J); //EeOCE±%a writeHan(2/16,0/hanzi_ZM[ll]);
writeHan(2,32,0/hanzi_ZM[12]);
writeHan(2,48Ahanzi_ZM[13]);
if(car==l)
(writeHan(0,40,0/hanzi_ZM[5]); //DjD(3|i writeHan(0,56Ahanzi_ZM[6]);writeHan(0,72,0,hanzi_ZM[2]);writeAscii(2,64,0,shuzi_ZM[smal_time_in[wei]/10000/10]);// writeAscii(2,72,0,shuzi_ZM[smal_time_in[wei]/10000%10]);writeAscii(2,80,0,shuzi_ZM[ll]);//- writeAscii(2,88,0,shuzi_ZM[smal_time_in[wei]%10000/100/10]);// writeAscii(2,96,0,shuzi_ZM[smal_time_in[wei]%10000/100%10]);writeAscii(2,104,0,shuzi_ZM[ll]);//-writeAscii(2,112z0zshuzi_ZM[smal_time_in[wei]%10000%100/10]);// writeAscii(2,120/0,shuzi_ZM[smal_time_in[wei]%10000%100%10]);
)
if(car==2)
(writeHan(0,40,0,hanzi_ZM[4]); //z6DPn writeHan(0,56Ahanzi_ZM[6]);
writeHan(0,72,0/hanzi_ZM[2]);writeAscii(2,64/0/shuzi_ZM[big_time_in[wei]/10000/10]);// writeAscii(2/72,0/shuzi_ZM[big_time_in[wei]/10000%10]);writeAscii(2/80,0,shuzi_ZM[ll]);//- writeAscii(2,88/0,shuzi_ZM[big_time_in[wei]%10000/100/10]);// writeAscii(2z96,0,shuzi_ZM[big_timeJn[wei]%10000/100%10]);writeAscii(2,104z0,shuzi_ZM[ll]);//- writeAscii(2/112/0,shuzi_ZM[big_time_in[wei]%10000%100/10]);// writeAscii(2/120/0/shuzi_ZM[big_timeJn[wei]%10000%100%10]);
)
writeHan(4,0/0,hanzi_ZM[9]);/^dOCE±%a writeHan(4,16,0,hanzi_ZM[ll]);
writeHan(4,32,0,hanzi_ZM[12]);
writeHan(4,48,0zhanzi_ZM[13]); writeAscii(4,64,0,shuzi_ZM[hour_out/10]);〃00 writeAscii(4,72,0,shuzi_ZM[hour_out%10]);
writeAscii(4,80,0,shuzi_ZM[ll]);〃- writeAscii(4,88,0,shuzi_ZM[min_out/10]);//00 writeAscii(4,96/0/shuzi_ZM[min_out%10]);
writeAscii(4,104,0,shuzi_ZM[ll]);//- writeAscii(4,112,0/shuzi_ZM[sec_out/10]);//00 writeAscii(4,120,0,shuzi_ZM[sec_out%10]);
wnteHan(6,0/0,hanzi_ZM[14]);//-NOA
writeHan(6,16,0,hanzi_ZM[15]); writeAscii(6,32,0,shuzi_ZM[10]); //£?
writeAscii(6,40,0,shuzi_ZM[money/10]); //xx writeAscii(6,48/0/shuzi_ZM[money%10]);
writeHan(6,56/0/hanzi_ZM[16]);//O?
}//04-9-Ey
//04-9-Ey
//04-9Ey

//04-9-Ey
//86E%»_TG12864
//Ca/EA
void main{)(
uchar i;
LED1=1;
LED7=1; bmpstate=2; initTG12864(); clrscr(); timeO_init();〃 timel_init();
while(l)
(//temper=read_temper();scanKeyf);switch(user)(case 0://^1UAiO±switch(keynum)(
case 11:
user=l;break;}break;case 1："UA 心士A££%switch(keynum)(3d1UAiO±A£E^
user=O;break;case 14:〃 逐Copen(cp_15cm);/*DR=O;TR1=1;cp_temp=cp_big;*/ break;case 15://,0OC
close(cp_15cm);/*DR=1;TR1=1;cp_temp=cp_big;*/ break;case 12://EeOAset=l;break;}default:break;
}if((set==l)&&(keynum<4)&&(set_chewei==0)) //EeOAA£EJ4£-EeOADiDPn3nl»Eysmal=keynum;set_chewei=lkeynum=Oxff;
} if{(set==l)&&(keynum<3)&&(set_chewei==l)) //^edAA£^%£->^edAz6Df3n3nf»^y (big=keynum;set_chewei=O;keynum=Oxff;)if((set==l)&&(keynum==16)) //IE3oEeOAA£EJ4(set=O;
set_chewei=O;}loop:switch(bmpstate){case 2: /尸6£%，'卜£项％2bmp2();//lOE%l%2Ta10DAkif((SA2==0)&&(smal>0))//SA2TdTA£-±iE%6DDiDI3nEedC£-QO6D1la6a3nl»£-x%±j%0Eel%3
(bmpstate=3;clrscrf);}if((SA3==O)&&(big>O))//SA3TolA£-±i^%OD(bmpstate=4;
clrscr();}if(SA4==0)//SA4TdTA£-±i^6D3nA%3odC£-%0^ef%5{chepai_flag=O;bmpstate=5;clrscr();)
if(smal==0) //DiDPnf»ONAu(if(SA2==O) //SA2TdTA£-LEDlAA£-3n2»AUEeOCLED1=O;else//SA2TdEI£-LEDlAdLED1=1;if(big==O) //z6DPhT»0NAu(
if(SA3==0) //SA3I0IAE-LED1EAE,(if(ledstate==l){ledstate=O;LED1=~LED1;}}
else〃SA3ib 白ALED1TA6LED1=1;}break;//io'Oswitch。以台case 3: //Dif^谜。糖为qAaeif((chepai_flag<3)&&(keynum!=Oxff)) //EaEe3T»3nA/E2A(
chepai[chepai_flag]=keynum; chepai_flag++;)
if((chepai_flag==3)&&(keynum==16)&&(smal>0)) //3l»3nAxE!atefe3^£-'o，TALn，<,/%u£-^ddD1la6a3nl»( chepai_flag=4; //bmp3%?AaeOD£-T6^%Ee0C^±%a±ed% smal_time_in[smal-l]=hour*10000+min*100+sec;//%«4A3^edce±%a±£zaeOO^yxedD£-6A60%^Eaf£3|ifM hour_in=hour;//n±C°E±%a/«nYJ0EedCE±%a6A6Ubmp3^AaedD£46E%EedCE±%a min_in=min;
sec_in=sec;
opencp_10cm);
/*DR=O;//e^OC
cp_temp=cp_smal; //10cmEuDeAo3a^y TR1=1;//oi?H-E±^-rl£->6AOU2uEu2>1^0H5»uAd337}bmp3(); //lOE%l%3la10DATC
if((SA2==l)&&(chepai_flag==4)&&(smal>0))//SA2Td^£-3nA^?Ah^e(e3^£-Cb6DHa6a3nl»£ -±iE%3nA%l"1y£4OE%»0n^36E%x1-，bmpstate=2; //I%2x1-±ed%
//uint cp_temp=O;int smal_time_in[3] = (0,0,0);//%^A%2»l-DjDI3nEedCE±%aint big_time_in[2] = {0/0);//%^A%2»f-，6Df3nEedC^±%auchar chepai[3]={0,0,0}; //n±Q°EaEe3pA/Euint chepai_now=0;//'aeAn士q°3|iAzE0n£r0A6U±££iuint smal_chepai[3]= {0,0,0}; ///ae A2»l-Eei.aDiDI3n3nA^Opuint big_chepai[2]= {0,0}; //aeA2»f-^eiaz6D(3|i3|iA^dn
uchar hourin=0;
uchar min_in=0;
uchar sec_in=0;
//EeOCE± //^edCO //EeOCAe
uchar hour_out=0;
uchar min_out=0;
uchar sec_out=0;
/^oOCE± /^odc0 /^oOCAe
uchar car=O; uchar wei=0; uchar big=2;
uchar smal=3;
//%QA%3d0C3uDI£-ll?DiDI3n£-2i2 oDI3p
//%CA%3ddC3nA%Eu6u3neal»OA
//H±C° o3|il»^y
//^°Dj3nl»Ey
uchar chepai_flag=O;
//%QA%!afce3nAZEI»Ey
uchar money=0;
uchar error=0;
〃％qA%虹 Nm "rA/E% 洛'06 癸 0%
uchar user=0; "UAr’％。user=l P士riAPAr'%。
uchar set=0; //set=l£-olA^eOA%u£-set=O£-EeOA^aE0 uchar set_chewei=0; //uint temper=0;/**********甘％,叫0£+9-都**** ********* /void delaymsfuint x)//NOE±5AAe9'Ey{
uchar i;
while(x-)
for(i=0;i<123;i++);}
clrscr(); //^a/EA£-(；a3yl%3TdE%DATC chepai_flag=O; 〃q 没0°'%乱台凿 smal-; //DiDI3nEeca£-'DiDI3n3ni»%6d» smal_chepai[smal]=chepai[0]*100+chepai[l]*10+chepai[2];//^KDiDP^nA^^A^aeEeEyxef-OAOU^OCIldi^nA^^A close(cp_10cm);/*DR=1;//0OCcp_temp=cp_smal; //10cmEuDeAd3aEyTR1=1; //，dd9H^±/E^l£-6A6u2u^u2%%0n;»uAd3a*/}break; //I03dswitch6i%acase 4: //z6DPnEeea%?Aae
if((chepai_flag<3)&&(keynum!=0xff)) //EaEe3b>3nAzE5A(chepai[chepai_flag]=keynum; chepai_flag++;}
if((chepai_flag==3)&&(keynum==16)&&(big>0)) //3l»3^EaEele3E£-o，TAEH，oy%u£-(；06D1]a6a3nl»(chepai_flag=4; //bmp4)4?AaedD£JdE%EedCE±%a±ed% big_time_in[big-l]=hour*10000+min*100+sec;//%«/3nEedCE±%a±£zaeOUEyxedD£-6AOU%^Eaf£3nNhour_in=hour;//ni^EiXa^wnY^EeOCEiXaOAOUbmp^^AaeODE-TOE^EedCEiXamin_in=min;sec_in=sec;
open(cp_15cm);/*DR=0;cp_temp=cp_big; // 15cm EuDeAd3aEyTR1=1;//oe9Hl±^4-l£^6A6u2u^u2^^0|if»uAd3a*/}bmp4(); //lOE^I%4la10DATC
if((SA3==l)&&(chepai_flag==4)&&(big>0))//SA3loET£-3nA^5AEaEele3E£-(；ddD1la6aVl»£-± i!%3|iA%f，1y£4d^%»0nJ436^%x%{bmpstate=2; //f%2x1-±ed% clrscrf); //(；axEA£-(；a3yl%4TdE%DAIC chepai_flag=O; //^acdo，%uEaEe±ed% big-; // oDPuEedaf-dDI3n3nT»%60» big_chepai[big]=chepai[0]*100+chepai[l]*10+chepai[2];//^« oDPn3nA^2A aete!yxe£-6A603dOcnd±^nA^2Aclose(cp_15cm);/*DR=1; "00 c cp_temp=cp_big; // 15cm EuDeAd35EyTR1=1;//zde^H'E±^-=-l£-，6A6u2uEu2%%0^»uAd3a7)
break; //103dswitch6i'%acase 5: /^oOC%i2aif((chepai_flag<3)&&(keynum!=0xff)) //EaEe3b>3nA/E5A(chepai[chepai_flag]=keynum;chepai_flag++;
}
if((chepai_flag==3)&&(keynum==16)) //3l»3nA^EaEele3E£-o，TAE-H"oz%u( chepai_now=chepai[0]*100+chepai[l]*10+chepai[2];//%XEEan±(；oEaEenA3nA^5A£-6A6u±E1ldbNEeca3nA^5A for(i=0;i<3;i++) //n±^°EaEe3nA^?A6ebNEedaDjDI3n3|iA^9A±E11O {if(chepai_now==smal_chepai[i])(error=0;chepai_flag=O;bmpstate=6;
clrscr();car=l;wei=i;smal++;hour_out=hour;min_out=min;sec_out=sec;
money=(min_out*60+sec_out-(smal_time_in[wei]%10000/100*60+smal_timejn[wei]%100 00%100))/30*5;
if(((min_out*60+sec_out-(smal_timejn[wei]%10000/100*60+smal_time_in[wei]%10000%l 00))%30)!=0)money=money+5;goto loop;})for(i=0;i<2;i++)(if(chepai_now==big_chepai[i])
{error=0;chepai_flag=O;bmpstate=6;clrscr();car=2;wei=i;big++;
hour_out=hour;min_out=min;sec_out=sec;
money=(min_out*60+sec_out-(big_time_in[wei]%10000/100*60+big_time_in[wei]%10000 %100))/30*5;
if(((min_out*60+sec_out-(big_time_in[wei]%10000/100*60+big_time_in[wei]%10000%100) )%3O)!=O)money=money+5;goto loop;})chepai_flag=O;error=l;}
bmp5();break;case 6:
bmp6();if(SA4==l)〃SA4Tb£i£rTO£%»0n%36£%x1r{chepai_flag=O;bmpstate=2;clrscr();)break;
}
} void time_0(void) interrupt 1
TL0=(uint)(-110592/12)%256;
TH0=(uint)(-110592/12)/256;
count++;
if(count=100) //H'^±ZE-r^l0ms£-'H±count==100^±£-100xl0ms=1000ms£"lAe£© (count=0;//lAen%£-%^Ey±aAe(；aOsec++;//Ae%61if(sec==60)//EdAe%6n)4AE60Ae(sec=O;//AeQaOmin++;//OOOXOlif(min==60)//Ed OOd%dn^AE60 0
{min=0;//OdbQSOhour++;//DiE±%01if(hour==24) //toDi £±%0|i%AE24£)i £±hour=0;〃Di£±'6O 曰 £%%ZE白}}
)
led_count++;
if(led_count==30)
(led_count=0;ledstate=l;
)}/*void time_l(void) interrupt 3(
TLl=0xf6;
THl=Oxff;
cp_count++;
CP=~CP;
if(cp_count==cp_temp)
(cp_count=0;TR1=O;
)}*/
**************
while(x--);/***********DSi8B2oqvir~£v* void DS18B20_init()
uchar i;
DQ=1; delayus(l);
DQ=0; delayus(80);DQ=1;
i=0; while(DQ)( delayus(lOO); i++； if(i>5) break;
) void write_byte(uchar dat) (
uchar i;
for(i=0;i<8;i++)
(
DQ=0;
_nop_(); DQ=dat&0x01; delayus(lO); DQ=1; dat=dat»l;
)
delayus(lO);}uchar read_byte()(
uchar i,dat=O;
for(i=0;i<8;i++)
DQ=0; _nop_();DQ=1;
_nopj);_nop_();_nop_();_nopj); if(DQ)
dat=dat|0x80;
dat=dat»l; delayus(lO);
)
return dat;}uint read_temper()(
uchar a,b;
uint t=O;
DS18B20_init(); delayus(15);
write_byte(Oxcc); write_byte(0x44);
DS18B20_init(); delayus(15);
write_byte(Oxcc); write_byte(Oxbe);
a=read_byte();
b=read_byte();
t=(b*256+a)*0.0625;