text1.lst

单片机快速入门原程序

C51 COMPILER V7.50   TEXT1                                                                 05/29/2006 10:28:18 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 P25=0xA5;                          //P2.5位
  14          sbit P26=0xA6;                          //P2.6位
  15          sbit P27=0xA7;                          //P2.7位        
  16          void SelectChannel(uint c0809addr,uchar c0809data);
  17          uchar GetResult( );//得到转换结果
  18          void Delay() ;                           //延时子程序
  19          main()
  20          {       Uart_Init();    //
  21   1              P0=0XFF;                //端口初始化为0xFF
  22   1              P1=0XFF;                
  23   1              P2=0XFF;
  24   1              P3=0XFF;
  25   1              EX0=1;                  //开外部中断0
  26   1              EA=1;                   //全局中断打开
  27   1              cChannelIndex=0;
  28   1              nCurrentAddr=ADC0809CH0;
  29   1              SelectChannel(ADC0809CH0,cChannelIndex);        //选择ADC0809通道0
  30   1              Delay();                //调用延时程序
  31   1              cChannelIndex++;
  32   1              nCurrentAddr=ADC0809CH1;
  33   1              SelectChannel(ADC0809CH1,cChannelIndex);        //选择ADC0809通道1
  34   1              Delay();                //调用延时程序
  35   1              cChannelIndex++;
  36   1              nCurrentAddr=ADC0809CH2;
  37   1              SelectChannel(ADC0809CH2,cChannelIndex);        //选择ADC0809通道2
  38   1              Delay();                //调用延时程序
  39   1              cChannelIndex++;
  40   1              nCurrentAddr=ADC0809CH3;
  41   1              SelectChannel(ADC0809CH3,cChannelIndex);        //选择ADC0809通道3
  42   1              Delay();                //调用延时程序
  43   1              while(1);
  44   1      }
  45          Uart_Init()
  46                  {SCON = 0x52;    /* 设置串行口控制寄存器SCON*/
  47   1               TMOD = 0x21;    /* 12M时钟时波特率为2400  */
  48   1               TCON = 0x69;    /* TCON */
  49   1               TH1 =  0xf3;    /* TH1 */
  50   1              }
  51          void Delay()    //延时程序
  52          {       uint i;
  53   1              for(i=0;i<200;i++);
  54   1      }
  55          void SelectChannel(uint c0809addr,uchar c0809data)
C51 COMPILER V7.50   TEXT1                                                                 05/29/2006 10:28:18 PAGE 2   

  56                  {
  57   1                      *((uchar xdata *)c0809addr)=c0809data;
  58   1                      //选择ADC0809通道
  59   1              }
  60          void int0() interrupt 0 using 0
  61          {       cDigitalData[cChannelIndex]=GetResult();
  62   1              printf("Got channel %d Result\n",cChannelIndex);
  63   1                      /*响应INT0后不断输出*/
  64   1      }
  65          uchar GetResult( )//得到转换结果
  66          {uchar cResult;
  67   1      cResult=*((uchar xdata *)nCurrentAddr);
  68   1      return cResult;         //返回转换后数字量
  69   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    274    ----
   CONSTANT SIZE    =     23    ----
   XDATA SIZE       =      8    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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