uart.lst

52单片机开发板的实例程序

C51 COMPILER V9.00   UART                                                                  08/20/2011 21:48:10 PAGE 1   


C51 COMPILER V9.00, COMPILATION OF MODULE UART
OBJECT MODULE PLACED IN uart.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE uart.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          #define uint unsigned int
   3          #define uchar unsigned char 
   4          sbit a=P1^0;
   5          sbit b=P1^1;
   6          sbit c=P1^2;
   7          uchar temp=0;
   8          const uchar table[]={
   9                    0x3f,0x06,0x5b,0x4f,0x66,
  10                    0x6d,0x7d,0x07,0x7f,0x6f};
  11          void delay(uint k)
  12          {
  13   1        uint i;
  14   1        for(;k>0;k--)
  15   1        for(i=110;i>0;i--);
  16   1      }
  17          void HC138(uchar i)
  18          {
  19   1        a=i&0x01;
  20   1        b=i&0x02;
  21   1        c=i&0x04;
  22   1      }
  23          void display(uchar num)
  24          {
  25   1         uchar ge,shi,bai,qian;
  26   1         qian=num/1000;
  27   1         bai=num%1000/100;
  28   1         shi=num%100/10;
  29   1         ge=num%10;
  30   1         HC138(0);
  31   1         P2=table[ge];
  32   1         delay(2);
  33   1         HC138(1);
  34   1         P2=table[shi];
  35   1         delay(2);   
  36   1          HC138(2);
  37   1         P2=table[bai];
  38   1         delay(2); 
  39   1      }
  40          void main()
  41          {
  42   1      
  43   1              TMOD=0x20;//设置定时器1为工作方式2
  44   1              TH1=0xfd;//设置串口通信的波特率为9600
  45   1              TL1=0xfd;
  46   1              TR1=1;//开启定时器1
  47   1              SM0=0;
  48   1              SM1=1;
  49   1              REN=1;
  50   1              EA=1;
  51   1              ES=1;
  52   1              while(1)
  53   1                      {       
  54   2                      display(temp);
  55   2      
C51 COMPILER V9.00   UART                                                                  08/20/2011 21:48:10 PAGE 2   

  56   2                      }
  57   1      }
  58          void IsrUart() interrupt 4
  59          {
  60   1              ES=0;
  61   1              if(RI)
  62   1              {
  63   2                      RI=0;
  64   2                      temp=SBUF;
  65   2      
  66   2              }
  67   1              ES=1;
  68   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    196    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     11       1
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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