jiang.lst

飞利浦公司生产的75A温度读取芯片配合C51单片机读取温度

C51 COMPILER V7.06   JIANG                                                                 12/05/2008 11:08:37 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE JIANG
OBJECT MODULE PLACED IN jiang.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE jiang.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          //***读取温度和显示温度值主函数****//
   2          #include <jiang.h>
   3          #include <reg52.h>
   4          #include <dis.h>
   5          unchar data LM75A=0x90;// LM75A 的I2C 地址 
   6          unchar data MRD[2]={0};//接收缓冲区
   7          unint a,b,temp;
   8          float s,t;
   9          unchar shu[7];
  10          unint change_h_d1(unchar a)//把LM75A温度寄存器11位中低3位转为十进制
  11          {
  12   1              unchar i,j,k;
  13   1              unint m;  
  14   1              unint n;
  15   1              n=0;
  16   1              a=a&0xe0;
  17   1              a>>=5;
  18   1              for(i=0;i<3;i++)
  19   1              {
  20   2                      m=1;
  21   2                  k=a&0x01;
  22   2                      for(j=i;j>0;j--)
  23   2                      {
  24   3                              m=m*2;  
  25   3                      }
  26   2                      n=n+m*k;
  27   2                      a>>=1;
  28   2              }
  29   1              return n;
  30   1              
  31   1      }
  32          unint change_h_d0(unchar a)//把LM75A温度寄存器11位中高8位转为十进制
  33          {
  34   1              unchar i,j,k;
  35   1              unint m;
  36   1              unint n;
  37   1              n=0;
  38   1              for(i=0;i<8;i++)
  39   1              {
  40   2                      m=1;
  41   2                      k=a&0x01;
  42   2                      for(j=i+3;j>0;j--)
  43   2                      {       
  44   3                              m=m*2;
  45   3                      }
  46   2                      n=n+m*k;
  47   2                      a>>=1;
  48   2              }
  49   1              return n;
  50   1              
  51   1      }
  52          void delay(unchar z)
  53          {
  54   1        unchar x,y;
  55   1        for(x=z;x>0;x--)
C51 COMPILER V7.06   JIANG                                                                 12/05/2008 11:08:37 PAGE 2   

  56   1           for(y=10;y>0;y--);
  57   1      }
  58          void main()
  59          {
  60   1         while(1)
  61   1         {
  62   2         IRcvStr(LM75A,0x00,MRD,2);//读取LM75A 当前温度值 
  63   2              a=MRD[0];
  64   2              b=MRD[1]; 
  65   2              s=change_h_d0(a)+change_h_d1(b);
  66   2              t=s/8.0;//换算成实际
  67   2          temp=1000*t;
  68   2          shu[0]=temp%10;//取整数各位值
  69   2              shu[1]=(temp/10)%10;
  70   2              shu[2]=(temp/100)%10;
  71   2              shu[3]=(temp/1000)%10;//个位
  72   2              shu[4]=(temp/10000)%10;//十位
  73   2              shu[5]=(temp/100000)%10;//百位
  74   2          mydisplay(3,shu[1]);
  75   2      delay(35);
  76   2         mydisplay(2,shu[2]);
  77   2      delay(35);   
  78   2          mydisplay(4,10);
  79   2      delay(35);
  80   2          mydisplay(5,11);
  81   2      delay(35);
  82   2         mydisplay1(1,shu[3]);//显示带小数点的数值
  83   2      delay(35);
  84   2          mydisplay(0,shu[4]);
  85   2      delay(35);
  86   2          }
  87   1      } 


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    815    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     24      16
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1       1
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)