4x4

4x4矩阵按键控制

C51 COMPILER V9.00   4X4_显示                                                              07/29/2013 00:05:11 PAGE 1   


C51 COMPILER V9.00, COMPILATION OF MODULE 4X4_显示
OBJECT MODULE PLACED IN 4x4 显示.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 4x4 显示.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg51.h>
   2          #define uchar unsigned char
   3          #define uint unsigned int
   4          uchar  code  key_scan[4] = {0xfe,0xfd,0xfb,0xf7};
   5          uchar  code  key_value[16] = {0xee,0xde,0xbe,0x7e,
   6                                                                    0xed,0xdd,0xbd,0x7d,
   7                                                                0xeb,0xdb,0xbb,0x7b,
   8                                                                0xe7,0xd7,0xb7,0x77,};
   9                                                                    
  10          uchar code seven_seg[] = {0xc0,0xf9,0xa4,0xb0,0x99,
  11                                    0x92,0x82,0xf8,0x80,0x90};
  12          sbit beep=P1^7; 
  13          sbit k1=P2^5;
  14          sbit k2=P2^6;
  15          //sbit k3=P2^7;
  16          
  17          uchar k =88;
  18          
  19          //毫秒延时函数 
  20          void delay(uint x)
  21          {
  22   1              while(x--);
  23   1      }
  24          void display1(uchar x)
  25          {
  26   1              P0 = 0xff;                 //仿真时消隐
  27   1              P0 = seven_seg[x % 10];
  28   1              P2 = 0xfe;delay(1000);
  29   1              P0 = 0xff;                     //仿真时消隐
  30   1              P0 = seven_seg[x / 10];
  31   1              P2 = 0xfd;delay(1000);
  32   1      }
  33          //按键控制
  34          void main(void)
  35          {
  36   1                      uchar i = 0,j;
  37   1              while(1)
  38   1              {
  39   2                 
  40   2                  beep=1;
  41   2                      P3 = key_scan[i];
  42   2                      if(P3 != key_scan[i])
  43   2                      {
  44   3                              delay(200);
  45   3                              
  46   3                              for(j = 0;j <= 16;j++)
  47   3                              {                          
  48   4                                      if(P3 == key_value[j])
  49   4                                      k =j ; 
  50   4                              }  
  51   3                         beep=0;
  52   3                      }
  53   2                      
  54   2                      display1(k);
  55   2                      i++;
C51 COMPILER V9.00   4X4_显示                                                              07/29/2013 00:05:11 PAGE 2   

  56   2                      if(i >= 4)
  57   2                      i = 0;
  58   2        
  59   2              }
  60   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    116    ----
   CONSTANT SIZE    =     30    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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