基于stc单片机温度控制的程序.pdfVIP

#includereg52.H

#includestdlib.h

#includemath.h

#includeintrins.h

unsignedintpp1;

unsignedintj=0;

unsignedintReceiveData;//计算机向单片机发送的数据

unsignedintADdat2;

unsignedcharcH;

unsignedcharcL;

unsignedcharINPUT_ZH;

unsignedcharINPUT_X;

unsignedintGivenTemper,measure,Error;

floatpp;

sbitDS=P2^4;

sbitss1=P2^0;

sbitss2=P2^1;

#defineucharunsignedchar

#defineuintunsignedint

ucharTemp_Value[]={0x00,0x00};

voiddelay(unsignedinti);

uchara,b,c;

floattt;

unsignedinttemp;

/*************************此部分为18B20的驱动程序

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

bitds18b20isok=1;

//===============================================

voidDelay(uintx)//延时程序

{unsignedi;

x=x*5/4;

for(i=0;ix;i++);

}

//===============================================

ucharInitDS18B20()//初始化

{

ucharstatus;

DS=1;Delay(8);DS=0;Delay(500);DS=1;Delay(100);

status=DS;Delay(100);

DS=1;

returnstatus;

}

//=================================================

voidWriteByte(uintdat)//单字节写入

{

uchari;

for(i=0;i8;i++)

{

DS=0;

_nop_();

Delay(10);

DS=dat0x01;

Delay(40);//delay45uS//5

DS=1;

dat=1;

}

}

//==================================================

ucharReadByte(void)//读取单字节

{

uchardat=0,i;

DS=1;

_nop_();

for(i=0;i8;i++)

{

DS=0;

_nop_();

dat=1;

DS=1;

_nop_();

_nop_();

if(DS)dat|=0x80;

Delay(45);

DS=1;

}

returndat;

}

ucharreadtemperature()

{

if(InitDS18B20()==1)

ds18b20isok=0;

else

{

WriteByte(0xCC);

WriteByte(0x44);

InitDS18B20();