b20.lst

单片机温度显示实验18B20

C51 COMPILER V7.06   B20                                                                   10/25/2007 09:25:37 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE B20
OBJECT MODULE PLACED IN b20.OBJ
COMPILER INVOKED BY: D:\Program Files\Keil\C51\BIN\C51.EXE b20.c BROWSE

stmt level    source

   1          #include<reg51.h>
   2          #include<absacc.h>
   3          #include<stdio.h>
   4          #include<math.h>
   5          #include<intrins.h>
   6          
   7          #define uchar unsigned char 
   8          /*端口定义*/
   9          #define LED P0                                  /*实际温度值输出端口定义*/      
  10          
  11          #define NOP _nop_()
  12          
  13          
  14          sbit  tem_in=P3^5;                              /*温度读取端口*/
  15          sbit  con_out=P1^7;                             /*报警启动端口*/
  16          sbit DP=P2^7;
  17          
  18          
  19          #define  L 15                                   /*温度报警下限*/
  20          #define  H 40
  21          
  22          
  23          uchar temp_h,temp_l;                    /*温度值变量*/
  24          uchar flag1;                                    /*正负标志位*/
  25          uchar code ledcode[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};/*数码显示数据：0，1，2，3，4，5