18b20--c程序

#include<reg52.h>
#include<absacc.h>
#include<intrins.h>
#include<math.h>
#define uint unsigned int
#define uchar unsigned char

sbit dula=P2^6;
sbit wela=P2^7;

uchar code table[]={
 0x3f,0x06,0x5b,0x4f,
 //   0    1  2   3
 0x66,0x6d,0x7d,0x07,
 //  4     5   6 7 
 0x7f,0x6f,0x77,0x7c,
 //    8 9 a  b
 0x39,0x5e,0x79,0x71,0x80};
 //   c    d   e f   .
void display(
   //uchar ,uchar ,uchar ,
   uchar ,uchar ,uchar );
void delay_led(uint z);
void init_led();
void zhuanhuan();

uint aa;
uchar wei_1,wei_2,wei_3,v,wei_4,wei_5,wei_6;

uint shuju;//得到的温度值

uchar temp[2]={0,0};  //存放DS18B20的温度寄存器值
uint value = 0;
sbit FWD=P1^1;     //负温度显示指示
sbit DQ=P2^0;       //数据线
sbit FM=P2^3;     //控制蜂鸣器
void ReadSerialNumber(void);
uchar sn1,sn2,sn3,sn4,sn5,sn6,sn7,sn8; //存放DS18B20的64位序列号

void ow_reset(void);
void tmstart (void);
void ReadSerialNumber(void);
void Read_Temperature(void);
void write_byte(char);
uint read_byte(void);
void delay_18B20(uint);

void baojing();

/*******主函数**********/
void main()
{ 
 init_led();//初始化子程序
 tmstart ();
    delay_18B20(50);     /*等待转换结束*/
 while(1)
 {           
     Read_Temperature();
        delay_18B20(50);
        tmstart();
        delay_18B20(50);    /*等待转换结束*/