test_dac0832.lst

项目描述：产生正弦波,方波,三角波的能力.可存储多种波形,输出波形频率100Hz--200kHz,

C51 COMPILER V7.06   TEST_DAC0832                                                          11/01/2008 16:29:23 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE TEST_DAC0832
OBJECT MODULE PLACED IN test_DAC0832.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE test_DAC0832.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <reg51.h>
   2          #include "LCD1602.c"
   3          
   4          #define uchar unsigned char
   5          #define uint unsigned int
   6          
   7          uchar  code tab[128]={64,67,70,73,76,79,82,85,88,91,94,96,99,102,104,106,109,111,113,
   8                                115,117,118,120,121,123,124,125,126,126,127,127,127,127,127,127,
   9                                127,126,126,125,124,123,121,120,118,117,115,113,111,109,106,104,
  10                                102,99,96,94,91,88,85,82,79,76,73,70,67,64,60,57,54,51,48,45,42,
  11                                39,36,33,31,28,25,23,21,18,16,14,12,10,9,7,6,4,3,2,1,1,0,0,0,0,0,
  12                                0,0,1,1,2,3,4,6,7,9,10,12,14,16,18,21,23,25,28,31,33,36,39,42,45,48,51,54,57,60};
  13          
  14          
  15          void delay( )
  16          {
  17   1        uchar i;
  18   1        for(i=0;i<255;i++);
  19   1      }
  20          
  21          
  22          void saw()   //锯齿波.
  23          {
  24   1       uchar i;
  25   1       while(1)
  26   1       {
  27   2        for(i=0;i<255;i++)
  28   2        P0=i;
  29   2        
  30   2       }
  31   1      }
  32          
  33          void tran()  //三角波
  34          {
  35   1       uchar i;
  36   1       while(1)
  37   1       {
  38   2        for(i=0;i<255;i++)
  39   2        P0=i;
  40   2        for(i=255;i>0;i--)
  41   2        P0=i;
  42   2       }
  43   1      }
  44          
  45          void square()  //方波
  46          {
  47   1        while(1)
  48   1        {
  49   2         P0=0x00;
  50   2         delay();
  51   2         P0=0xff;
  52   2         delay();  
  53   2        }
  54   1      
  55   1      }
C51 COMPILER V7.06   TEST_DAC0832                                                          11/01/2008 16:29:23 PAGE 2   

  56          
  57          void sin()    //正弦波
  58          {
  59   1        unsigned int  i;
  60   1        while(1)
  61   1        {
  62   2         if(++i==128)i=0;
  63   2         P0=tab[i];
  64   2           
  65   2        }
  66   1      }
  67          
  68          void key_press()
  69          {
  70   1               uchar key;
  71   1               while(1)
  72   1               {
  73   2                if(P1==0xff)
  74   2                 delay();
  75   2               if(P1==0xff)
  76   2                key=P1; 
  77   2               switch(key&0x0f)
  78   2                {
  79   3                 case 0x0e:{disp_onechar(0,2);saw();};break;
  80   3                 case 0x0d:{disp_onechar(0,3);tran();};break;
  81   3                 case 0x0b:{disp_onechar(0,4);square();};break;
  82   3                 case 0x07:{disp_onechar(0,5);sin();};break;
  83   3                 default:disp_onechar(0,1);
  84   3                }
  85   2               } 
  86   1      }
  87          
  88          
  89          
  90          
  91          
  92          void main() 
  93          {
  94   1       init();
  95   1       key_press();   
  96   1       while(1);  
  97   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    361    ----
   CONSTANT SIZE    =    224    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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