main.lst

周立功单片机上的源程序

C51 COMPILER V7.09   MAIN                                                                  07/01/2006 11:22:42 PAGE 1   


C51 COMPILER V7.09, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          /*
   2                  main.c
   3                  16×16 LED点阵的扫描显示：显示一个汉字
   4          */
   5          
   6          
   7          #include <reg51.h>
   8          
   9          
  10          //定义I/O端口
  11          sbit STR = P1^3;        //74HC595存储寄存器时钟（Storage register clock）
  12          sbit SI = P1^4;         //74HC595串行输入信号（Serial Input）
  13          sbit SCK = P1^5;        //74HC595移位寄存器时钟（Shift register clock）
  14          
  15          
  16          //定义汉字点阵数据表
  17          code unsigned char Zimo[32] =
  18          {
  19                  //文字：汉，字体：Fixedsys12，大小：16×16，取模方式：纵向取模、字节正序
  20                  0x08,0x06,0x80,0x61,0x06,0x20,0x38,0x27,0x20,0x20,0x20,0x27,0x38,0x20,0x00,0x00,
  21                  0x20,0x20,0x7E,0x80,0x02,0x04,0x04,0x08,0xD0,0x20,0xD0,0x08,0x0C,0x06,0x04,0x00
  22          };
  23          
  24          
  25          /*
  26          函数：SysInit()
  27          功能：系统初始化
  28          */
  29          void SysInit()
  30          {
  31   1              STR = 1;
  32   1              SI = 0;
  33   1              SCK = 0;
  34   1              TMOD &= 0x0F;
  35   1              TMOD |= 0x10;
  36   1              TH1 = 0xFC;
  37   1              TL1 = 0x66;
  38   1              TR1 = 1;
  39   1              ET1 = 1;
  40   1              EA = 1;
  41   1      }
  42          
  43          
  44          /*
  45          函数：T1INTSVC()
  46          功能：T1中断服务函数
  47          */
  48          void T1INTSVC() interrupt 3
  49          {
  50   1              code unsigned char Tab[] =
  51   1              {//定义扫描数据表
  52   1                      0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0xBF,0xDF,0xEF,0xF7,0xFB,0xFD,0xFE,
  53   1                      0x7F,0xBF,0xDF,0xEF,0xF7,0xFB,0xFD,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
  54   1              };
  55   1              static unsigned char n = 0;             //局部静态变量，用于查表
C51 COMPILER V7.09   MAIN                                                                  07/01/2006 11:22:42 PAGE 2   

  56   1              unsigned char d;                //临时变量
  57   1              unsigned char i;                //循环变量
  58   1              unsigned char j;                //循环变量
  59   1              unsigned char buf[4];   //临时数组，用于向74HC595发送数据
  60   1      //处理定时器T1
  61   1              TR1 = 0;
  62   1              TH1 = 0xFC;
  63   1              TL1 = 0x66;
  64   1              TR1 = 1;
  65   1      //查表，取得要发送的数据
  66   1              buf[0] = Tab[n];
  67   1              buf[1] = Tab[16+n];
  68   1              buf[2] = Zimo[16+n];
  69   1              buf[3] = Zimo[n];
  70   1              n++;
  71   1              n &= 0x0F;
  72   1      //向74HC595发送数据
  73   1              STR = 0;
  74   1              for ( i=0; i<4; i++ )
  75   1              {
  76   2                      d = buf[i];
  77   2                      j = 8;
  78   2                      do
  79   2                      {
  80   3                              SI = (bit)(d & 0x01);
  81   3                              SCK = 1;
  82   3                              d >>= 1;
  83   3                              SCK = 0;
  84   3                      } while ( --j != 0 );
  85   2              }
  86   1              STR = 1;
  87   1      }
  88          
  89          
  90          void main()
  91          {
  92   1              SysInit();
  93   1              for (;;);
  94   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    145    ----
   CONSTANT SIZE    =     64    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1       4
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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