main.lst

LY-51S c语言 程序

C51 COMPILER V7.06   MAIN                                                                  06/12/2010 10:59:06 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN .\obj\main.obj
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND PRINT(.\obj\main.lst) OBJECT(.\obj\main.ob
                    -j)

stmt level    source

   1          /*-----------------------------------------------
   2            名称：IIC协议 PCF8591 AD/DA转换 测试热敏电阻
   3            论坛：www.doflye.net
   4            编写：shifang
   5            修改：无
   6            内容：使用1路ad测试热敏电阻阻值，并查表得到温度值，温度精度和多种参数有关。
   7          ------------------------------------------------*/  
   8          #include <reg52.h>                
   9          #include "i2c.h"
  10          #include "delay.h"
  11          #include "display.h"
  12          
  13          
  14          code unsigned int  vt_table[]=  // 电压温度对照表
  15                  {
  16                          4132,4098,4063,4026,3988,3949,3908,3866,3823,3779,
  17                          3733,3686,3639,3590,3540,3489,3437,3385,3331,3277,
  18                          3222,3166,3110,3054,2997,2940,2882,2824,2767,2709,
  19                          2651,2593,2536,2478,2421,2365,2309,2253,2198,2143,
  20                          2089,2036,1984,1932,1881,1831,1782,1734,1686,1640,
  21                          1594,1550,1506,1464,1422,1381,1341,1303,1265,1228,
  22                          1192
  23                  
  24                  };
  25          
  26          #define AddWr 0x90   //写数据地址 PCF8591
  27          #define AddRd 0x91   //读数据地址 PCF8591
  28          
  29          extern bit ack;
  30          unsigned char ReadADC(unsigned char Chl);
  31          /*------------------------------------------------
  32                        主程序
  33          ------------------------------------------------*/
  34          main()
  35          {
  36   1       unsigned int num=0;
  37   1       unsigned char i,temp;
  38   1       Init_Timer0();
  39   1      
  40   1      while (1)         //主循环
  41   1        {
  42   2        
  43   2       num=ReadADC(0);// 
  44   2       num=num*19;    //变成mv
  45   2       for(i=0;i<61;i++)
  46   2         {
  47   3          if(num >= vt_table[i])
  48   3             {
  49   4              temp=i;
  50   4              if(i<10)
  51   4                {
  52   5                temp=10-temp; 
  53   5                TempData[0]=0x40;//'-'号
  54   5                }
C51 COMPILER V7.06   MAIN                                                                  06/12/2010 10:59:06 PAGE 2   

  55   4              else
  56   4                {
  57   5                temp-=10;
  58   5                TempData[0]=0x00;
  59   5                }
  60   4                      break;
  61   4              }
  62   3                
  63   3            }
  64   2       TempData[3]=dofly_DuanMa[temp/10];
  65   2       TempData[4]=dofly_DuanMa[temp%10];
  66   2       //主循环中添加其他需要一直工作的程序
  67   2       DelayMs(200);
  68   2        }
  69   1      }
  70          /*------------------------------------------------
  71                       读AD转值程序
  72          输入参数 Chl 表示需要转换的通道，范围从0-3
  73          返回值范围0-255
  74          ------------------------------------------------*/
  75          unsigned char ReadADC(unsigned char Chl)
  76           {
  77   1         unsigned char Val;
  78   1         Start_I2c();               //启动总线
  79   1         SendByte(AddWr);             //发送器件地址
  80   1           if(ack==0)return(0);
  81   1         SendByte(0x40|Chl);            //发送器件子地址
  82   1           if(ack==0)return(0);
  83   1         Start_I2c();
  84   1         SendByte(AddWr+1);
  85   1            if(ack==0)return(0);
  86   1         Val=RcvByte();
  87   1         NoAck_I2c();                 //发送非应位
  88   1         Stop_I2c();                  //结束总线
  89   1        return(Val);
  90   1       }
  91          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    180    ----
   CONSTANT SIZE    =    122    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       5
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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