#include?“at89x52.h“
#define?uint?unsigned?int
#define?ulong?	unsigned?long
#define?uchar?unsigned?char?//宏定義
sbit?DQ=P2^4?;????//定義DS18B20總線I/O
sbit?SET=P3^1;????//定義調整鍵
sbit?DEC=P3^2;????//定義減少鍵
sbit?ADD=P3^3;?????//定義增加鍵
sbit?BEEP=P3^7;????//定義蜂鳴器
bit?shanshuo_st;?????//閃爍間隔標志
bit?beep_st;??????//蜂鳴器間隔標志
uchar?x=0;???????//計數器
signed?char?m;??????//溫度值全局變量
uchar?n;???????//溫度值全局變量
uchar?set_st=0;??????//狀態標志
uchar?shangxian=38;???//上限報警溫度，默認值為38
uchar?xiaxian=5;????//下限報警溫度，默認值為5
uchar	tmpbuf[5];
sbit	Sign_Port	=P3^0;
sfr		Dat_Port	=0x80;	
sfr		Cs_Port		=0xa0;	
bit?????fu;	
uint?ReadTemperature（void）?;
uchar	code?table[12]={0x3F0x060x5B0x4F0x660x6D0x7D0x07
??????????????????????????0x7F0x6F0x000x40};

/*****延時子程序*****/
void?Delay_DS18B20（int?num）
{

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????103929??2010-07-01?01:27??thermometer\Last?Loaded?thermometer.DBK

?????文件??????15060??2010-07-01?18:33??thermometer\thermometer

?????文件???????6028??2010-07-01?18:33??thermometer\thermometer.c

?????文件?????103929??2010-07-01?18:36??thermometer\thermometer.DSN

?????文件???????4542??2010-07-01?18:33??thermometer\thermometer.hex

?????文件?????????54??2010-07-01?18:33??thermometer\thermometer.lnp

?????文件??????13750??2010-07-01?18:33??thermometer\thermometer.LST

?????文件??????20040??2010-07-01?18:33??thermometer\thermometer.M51

?????文件??????16846??2010-07-01?18:33??thermometer\thermometer.OBJ

?????文件????????157??2010-07-01?22:21??thermometer\thermometer.plg

?????文件???????1054??2010-07-02?10:09??thermometer\thermometer.PWI

????.......?????55227??2010-07-01?22:21??thermometer\thermometer.uvopt

????.......?????13246??2010-06-30?21:21??thermometer\thermometer.uvproj

????.......?????55229??2010-07-01?18:36??thermometer\thermometer_uvopt.bak

????.......?????13247??2010-06-30?19:15??thermometer\thermometer_uvproj.bak

?????目錄??????????0??2010-07-02?10:09??thermometer

-----------?---------??----------?-----??----

???????????????422338????????????????????16