18b20测温c程序

/DS18B20温度传感器程序#include#defineAlarm10sbitBeep=P3^4;sbitDQ=P2^4;//数据传输线接单片机的相应的引脚unsignedchartempL=0,tempH=0;//设全局变量unsignedcharflag=0;unsignedinttemperature,negtemper;//温度值保存在temperature里unsignedcharidataaddrdat[2]={0x0,0x0};unsignedchartab[]={0xc0,0xf9,0xa4,0xb0,/*01234*/