text1.lst

单片机快速入门原程序

C51 COMPILER V7.50   TEXT1                                                                 05/29/2006 10:53:07 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE TEXT1
OBJECT MODULE PLACED IN Text1.OBJ
COMPILER INVOKED BY: e:\Keil\C51\BIN\C51.EXE Text1.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <reg51.h>
   2          #include<stdio.h>
   3          #define ADC0809CH0 0xDFEF8 //0809通道0地址
   4          #define ADC0809CH1 0xDFEF9 //0809通道1地址
   5          #define ADC0809CH2 0xDFEFA //0809通道2地址
   6          #define ADC0809CH3 0xDFEFB //0809通道3地址
   7          #define uchar unsigned char     //uchar代表单个字节无符号数
   8          #define uint unsigned int       //uint无符号字
   9          xdata uint cChannelIndex;
  10          xdata uchar cDigitalData[4]=0;
  11          xdata uint nCurrentAddr;
  12          Uart_Init();                            //输出口初始化
  13          sbit EOCFlag=0xB2;                              //P3.2位 外部中断0
  14          void SelectChannel(uint c0809addr,uchar c0809data);
  15          uchar GetResult( );//得到转换结果
  16          main()
  17          {       Uart_Init();    //
  18   1              P0=0XFF;                //端口初始化为0xFF
  19   1              P1=0XFF;                
  20   1              P2=0XFF;
  21   1              P3=0XFF;
  22   1              cChannelIndex=0;
  23   1              nCurrentAddr=ADC0809CH0;
  24   1              SelectChannel(ADC0809CH0,cChannelIndex);        //选择ADC0809通道0
  25   1      while(!EOCFlag);        //等待转换结束，转换期间EOCFlag=0
  26   1      cDigitalData[cChannelIndex]=GetResult();//读取转换后结果
  27   1              cChannelIndex++;
  28   1              nCurrentAddr=ADC0809CH1;
  29   1              SelectChannel(ADC0809CH1,cChannelIndex);        //选择ADC0809通道1
  30   1      while(!EOCFlag);        //等待转换结束，转换期间EOCFlag=0
  31   1      cDigitalData[cChannelIndex]=GetResult();//读取转换后结果
  32   1              cChannelIndex++;
  33   1              nCurrentAddr=ADC0809CH2;
  34   1              SelectChannel(ADC0809CH2,cChannelIndex);        //选择ADC0809通道2
  35   1      while(!EOCFlag);        //等待转换结束，转换期间EOCFlag=0
  36   1      cDigitalData[cChannelIndex]=GetResult();//读取转换后结果
  37   1              cChannelIndex++;
  38   1              nCurrentAddr=ADC0809CH3;
  39   1              SelectChannel(ADC0809CH3,cChannelIndex);        //选择ADC0809通道3
  40   1      while(!EOCFlag);        //等待转换结束，转换期间EOCFlag=0
  41   1      cDigitalData[cChannelIndex]=GetResult();//读取转换后结果
  42   1              while(1);
  43   1      }
  44          Uart_Init()
  45                  {SCON = 0x52;    /* 设置串行口控制寄存器SCON*/
  46   1               TMOD = 0x21;    /* 12M时钟时波特率为2400  */
  47   1               TCON = 0x69;    /* TCON */
  48   1               TH1 =  0xf3;    /* TH1 */
  49   1              }
  50          void SelectChannel(uint c0809addr,uchar c0809data)
  51                  {
  52   1                      *((uchar xdata *)c0809addr)=c0809data;
  53   1                      //选择ADC0809通道
  54   1              }
  55          uchar GetResult( )//得到转换结果
C51 COMPILER V7.50   TEXT1                                                                 05/29/2006 10:53:07 PAGE 2   

  56          {uchar cResult;
  57   1      cResult=*((uchar xdata *)nCurrentAddr);
  58   1      return cResult;         //返回转换后数字量
  59   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    272    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =      8    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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