driver.lst

用来控制LED七彩控制器

C51 COMPILER V7.06   DRIVER                                                                03/10/2008 15:35:31 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE DRIVER
OBJECT MODULE PLACED IN driver.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE driver.c ROM(SMALL) BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include"STC12C2052AD.H"
   2          
   3          sbit LIGHT=P3^7;
   4          
   5          
   6          //初始化PWM，输出频率f=100HZ
   7          void init_pwm()
   8          {
   9   1        TMOD=0x02;  //将T0设置为8位自动重装载模式。
  10   1        TL0=0xd8;
  11   1        TH0=0xd8;   
  12   1        
  13   1        CMOD=0x04;  // 用定时器0
  14   1        CL=0x00;
  15   1        CH=0x00;
  16   1        CCAP0L=0x00;
  17   1        CCAP0H=0x00;
  18   1        CCAP1L=0x00;
  19   1        CCAP1H=0x00;
  20   1        CCAPM0=0x42;  //设置module 0 工作在PWM模式。PWM0=1 使能PWM； ECOM0=1 使能比较器。
  21   1        CCAPM1=0x42;
  22   1        CR=1;  //启动PCA      
  23   1        TR0=1; //启动定时器T0
  24   1      
  25   1      }
  26          
  27          void delay02s(void)               //延时0.2秒子程序 
  28          
  29          { 
  30   1      
  31   1        unsigned char i,j,k; 
  32   1      
  33   1        for(i=20;i>0;i--) 
  34   1      
  35   1        for(j=20;j>0;j--) 
  36   1      
  37   1        for(k=248;k>0;k--); 
  38   1      
  39   1      }   
  40          
  41          
  42          void  main()
  43          {
  44   1         char i,j;
  45   1         init_pwm();
  46   1           
  47   1         while(1)
  48   1         {
  49   2           delay02s();
  50   2           CCAP0H++;
  51   2               CCAP1H++;
  52   2         }
  53   1         
  54   1      }
*** WARNING C280 IN LINE 44 OF DRIVER.C: 'i': unreferenced local variable
C51 COMPILER V7.06   DRIVER                                                                03/10/2008 15:35:31 PAGE 2   

*** WARNING C280 IN LINE 44 OF DRIVER.C: 'j': unreferenced local variable
  55          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     59    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  2 WARNING(S),  0 ERROR(S)