#include

#define?uchar?unsigned?char
#define?uint?unsigned?int

sbit?DQ=P3^7;//ds18b20與單片機(jī)連接口
sbit?RS=P3^0;
sbit?RW=P3^1;
sbit?EN=P3^2;

unsigned?char?code?str1[]={“temperature:??“};
unsigned?char?code?str2[]={“??????????????“};?

uchar?data?disdata[5];
uint?tvalue;//溫度值
uchar?tflag;//溫度正負(fù)標(biāo)志

/*************************lcd1602程序**************************/
?void?delay1ms（unsigned?int?ms）//延時(shí)1毫秒（不夠精確的）
?{unsigned?int?ij;
???for（i=0;i????for（j=0;j<100;j++）;
?}

void?wr_com（unsigned?char?com）//寫指令//
?{??delay1ms（1）;
???RS=0;
???RW=0;
???EN=0;
???P2=com;
???delay1ms（1）;
???EN=1;
???delay1ms（1）;
???EN=0;
??}

void?wr_dat（unsigned?char?dat）//寫數(shù)據(jù)//
{??delay1ms（1）;;
???RS=1;
???RW=0;
???EN=0;
???P2=dat;
???delay1ms（1）;
???EN=1;
???delay

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????83471??2007-11-20?13:24??ds18b20\Backup?Of?ds1820.DBK

?????文件???????4308??2007-12-05?20:19??ds18b20\ds1820

?????文件???????3719??2007-12-05?20:19??ds18b20\ds1820.c

?????文件??????85412??2007-12-14?20:13??ds18b20\ds1820.DSN

?????文件???????3648??2007-12-05?20:19??ds18b20\ds1820.hex

?????文件?????????29??2007-12-05?20:19??ds18b20\ds1820.lnp

?????文件???????7818??2007-12-05?20:19??ds18b20\ds1820.LST

?????文件??????15669??2007-12-05?20:19??ds18b20\ds1820.M51

?????文件???????5455??2007-12-05?20:19??ds18b20\ds1820.OBJ

?????文件???????1180??2009-07-31?20:49??ds18b20\ds1820.Opt

?????文件????????159??2009-07-31?20:48??ds18b20\ds1820.plg

?????文件???????1483??2010-01-24?13:53??ds18b20\ds1820.PWI

?????文件???????1929??2009-04-21?21:24??ds18b20\ds1820.Uv2

????.......??????1184??2009-04-28?12:39??ds18b20\ds1820_Opt.Bak

????.......??????1680??2007-12-05?19:12??ds18b20\ds1820_Uv2.Bak

?????文件??????85413??2007-12-05?18:45??ds18b20\Last?Loaded?ds1820.DBK

?????目錄??????????0??2010-01-24?13:53??ds18b20

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

???????????????302557????????????????????17