baojing.lst

2010年新增TX-1C程序

C51 COMPILER V8.02   BAOJING                                                               07/06/2010 10:16:49 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE BAOJING
OBJECT MODULE PLACED IN baojing.OBJ
COMPILER INVOKED BY: D:\处理软件\keil\C51\BIN\C51.EXE baojing.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          /*****************************************************************************
   2                                                  “天祥电子”    倾情奉献
   3                                                                  www.txmcu.cn
   4                                                                  www.txmcu.com
   5          *******************************************************************************
   6          程序功能：实时采集当前环境温度值，并显示于数码管上。
   7                            同时，当温度高于某一值时（此处设为31摄氏度），蜂鸣器便会发出报警。
   8                            而当低于该值时，蜂鸣器自动停止报警。
   9          *****************************************************************************/
  10          #include <reg52.h>
  11          #define uchar unsigned char
  12          #define uint unsigned int
  13          sbit DS=P2^2;           //define interface
  14          uint temp;             // variable of temperature
  15          uchar flag1;            // sign of the result positive or negative
  16          sbit dula=P2^6;
  17          sbit wela=P2^7;
  18          sbit beep=P2^3;
  19          unsigned char code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,
  20                                  0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
  21          unsigned char code table1[]={0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,
  22                                  0x87,0xff,0xef};
  23          
  24          void delay(uint count)      //delay
  25          {
  26   1        uint i;
  27   1        while(count)
  28   1        {
  29   2          i=200;
  30   2          while(i>0)
  31   2          i--;
  32   2          count--;
  33   2        }
  34   1      }
  35          void dsreset(void)       //send reset and initialization command
  36          {
  37   1        uint i;
  38   1        DS=0;
  39   1        i=103;
  40   1        while(i>0)i--;
  41   1        DS=1;
  42   1        i=4;
  43   1        while(i>0)i--;
  44   1      }
  45          
  46          bit tmpreadbit(void)       //read a bit
  47          {
  48   1         uint i;
  49   1         bit dat;
  50   1         DS=0;i++;          //i++ for delay
  51   1         DS=1;i++;i++;
  52   1         dat=DS;
  53   1         i=8;while(i>0)i--;
  54   1         return (dat);
  55   1      }
C51 COMPILER V8.02   BAOJING                                                               07/06/2010 10:16:49 PAGE 2   

  56          
  57          uchar tmpread(void)   //read a byte date
  58          {
  59   1        uchar i,j,dat;
  60   1        dat=0;
  61   1        for(i=1;i<=8;i++)
  62   1        {
  63   2          j=tmpreadbit();
  64   2          dat=(j<<7)|(dat>>1);   //读出的数据最低位在最前面，这样刚好一个字节在DAT里
  65   2        }
  66   1        return(dat);
  67   1      }
  68          
  69          void tmpwritebyte(uchar dat)   //write a byte to ds18b20
  70          {
  71   1        uint i;
  72   1        uchar j;
  73   1        bit testb;
  74   1        for(j=1;j<=8;j++)
  75   1        {
  76   2          testb=dat&0x01;
  77   2          dat=dat>>1;
  78   2          if(testb)     //write 1
  79   2          {
  80   3            DS=0;
  81   3            i++;i++;
  82   3            DS=1;
  83   3            i=8;while(i>0)i--;
  84   3          }
  85   2          else
  86   2          {
  87   3            DS=0;       //write 0
  88   3            i=8;while(i>0)i--;
  89   3            DS=1;
  90   3            i++;i++;
  91   3          }
  92   2      
  93   2        }
  94   1      }
  95          
  96          void tmpchange(void)  //DS18B20 begin change
  97          {
  98   1        dsreset();
  99   1        delay(1);
 100   1        tmpwritebyte(0xcc);  // address all drivers on bus
 101   1        tmpwritebyte(0x44);  //  initiates a single temperature conversion
 102   1      }
 103          
 104          uint tmp()               //get the temperature
 105          {
 106   1        float tt;
 107   1        uchar a,b;
 108   1        dsreset();
 109   1        delay(1);
 110   1        tmpwritebyte(0xcc);
 111   1        tmpwritebyte(0xbe);
 112   1        a=tmpread();
 113   1        b=tmpread();
 114   1        temp=b;
 115   1        temp<<=8;             //two byte  compose a int variable
 116   1        temp=temp|a;
 117   1        tt=temp*0.0625;
C51 COMPILER V8.02   BAOJING                                                               07/06/2010 10:16:49 PAGE 3   

 118   1        temp=tt*10+0.5;
 119   1        return temp;
 120   1      }
 121          
 122          void display(uint temp)                 //显示程序
 123          {
 124   1         uchar A1,A2,A2t,A3;
 125   1         A1=temp/100;
 126   1         A2t=temp%100;
 127   1         A2=A2t/10;
 128   1         A3=A2t%10;
 129   1         dula=0;
 130   1         P0=table[A1];                //显示百位
 131   1         dula=1;
 132   1         dula=0;
 133   1      
 134   1         wela=0;
 135   1         P0=0x7e;
 136   1         wela=1;
 137   1         wela=0;
 138   1         delay(1);
 139   1      
 140   1         dula=0;
 141   1         P0=table1[A2];               //显示十位
 142   1         dula=1;
 143   1         dula=0;
 144   1      
 145   1         wela=0;
 146   1         P0=0x7d;
 147   1         wela=1;
 148   1         wela=0;
 149   1         delay(1);
 150   1      
 151   1         P0=table[A3];                //显示个位
 152   1         dula=1;
 153   1         dula=0;
 154   1      
 155   1         P0=0x7b;
 156   1         wela=1;
 157   1         wela=0;
 158   1         delay(1);
 159   1      }
 160          
 161          
 162          void main()
 163          {
 164   1       uchar a;
 165   1        do
 166   1        {
 167   2          tmpchange();
 168   2              for(a=10;a>0;a--)
 169   2              {   
 170   3                      display(tmp());
 171   3              }
 172   2              if(temp>=310)    //当温度超过31度（仅作试验用，实际可设为其他更高的值），蜂鸣器便会报警。
 173   2                      {
 174   3                      P1=0x00;
 175   3                      beep=0;
 176   3                      }
 177   2                      else
 178   2                      {
 179   3                      beep=1;
C51 COMPILER V8.02   BAOJING                                                               07/06/2010 10:16:49 PAGE 4   

 180   3                      P1=0xff;
 181   3                      }
 182   2        } while(1);
 183   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    476    ----
   CONSTANT SIZE    =     26    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      3       6
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----       2
END OF MODULE INFORMATION.


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