t0.lst

单片机开发板源程序适合初学者 第六部分 继电器输出控制

C51 COMPILER V7.06   T0                                                                    09/13/2007 01:25:33 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE T0
OBJECT MODULE PLACED IN T0.OBJ
COMPILER INVOKED BY: C:\tools\Keil\C51\BIN\C51.EXE T0.C BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /*实验名称：定时中断0
   2            功能：利用定时器,产生秒计数器,使数码管从000计到999
   3            作者：http://www.mcuprog.com
   4                  05-02-01
   5          */
   6          #include <reg51.h>
   7          //LCD的口线
   8          sbit E=P3^5;
   9          sbit RW=P3^6;
  10          sbit RS=P3^7;   
  11          //8字LED的连接方法
  12          //P0.7,P0.6,P0.5,P0.4,P0.3,P0.2,P0.1,P0.0
  13          //G,   F   A   E   B   H  C   D
  14          
  15          
  16          unsigned char code ledcode[]={0x84,0xf5,0x46,0x54,0x35,0x1c,0x0c,0xd5,  
  17                                        0x04,0x14,0x05,0x2c,0x8e,0x64,0x0e,0x0f}; //数码管段码表
  18          
  19          unsigned char js100ms,jsgw,jssw,t0100ms,t0sm;
  20          
  21          void time0(void);
  22          
  23          void main(void)
  24          {
  25   1              E=0;                    //取消LCD对LED的影响
  26   1              RW=0;
  27   1              RS=1;
  28   1              
  29   1              js100ms=0x00;
  30   1              jsgw=0x00;
  31   1              jssw=0x00;
  32   1              t0100ms=0x14;
  33   1              t0sm=0x01;                      //从第一个LED开始显示
  34   1              TH0=0xee;
  35   1              TL0=0x00;
  36   1              TMOD=0x01;
  37   1              TR0=1;
  38   1              IE=0x82;
  39   1              while(1)
  40   1              {}      
  41   1      }
  42          
  43          void time0(void) interrupt 1
  44          {
  45   1              TH0=0xee;
  46   1              TL0=0x00;
  47   1              t0100ms--;
  48   1              if(t0100ms==0x00)
  49   1              {
  50   2                      t0100ms=0x14;
  51   2                      js100ms++;
  52   2                      if(js100ms==0x0a)
  53   2                      {
  54   3                              js100ms=0x00;
  55   3                              jsgw++;
C51 COMPILER V7.06   T0                                                                    09/13/2007 01:25:33 PAGE 2   

  56   3                              if(jsgw==0x0a)
  57   3                              {
  58   4                                      jsgw=0x00;
  59   4                                      jssw++;
  60   4                                      if(jssw==0x0a)
  61   4                                      {jssw=0x00;}
  62   4                              }
  63   3                      }
  64   2              }
  65   1              t0sm++;
  66   1              if(t0sm==0x04)
  67   1              {t0sm=0x01;}
  68   1              P0=0xff;
  69   1              switch(t0sm)
  70   1              {
  71   2                      case 0x01:      { P2=0xdf;P0=ledcode[js100ms];}break;
  72   2                      case 0x02:      { P2=0xef;P0=ledcode[jsgw]&0xFB;}break;
  73   2                      case 0x03:  { P2=0xf7;P0=ledcode[jssw];}break;
  74   2                      default:        break;
  75   2              }
  76   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    152    ----
   CONSTANT SIZE    =     16    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      5    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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