C51 COMPILER V9.60.0.0   MAIN                                                              12/27/2025 19:02:38 PAGE 1   


C51 COMPILER V9.60.0.0, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN .\Objects\main.obj
COMPILER INVOKED BY: D:\keli\uv5_arm\C51\BIN\C51.EXE main.c OPTIMIZE(8,SPEED) BROWSE DEBUG OBJECTEXTEND PRINT(.\Listings
                    -\main.lst) TABS(2) OBJECT(.\Objects\main.obj)

line level    source

   1          #include "REG51.h"
   2          #include "INTRINS.h"
   3           
   4          sbit  K1 =P1^4 ;                    //增加键
   5          sbit  K2 =P1^5 ;                    //减少键
   6          sbit  P00 =P0^1;
   7          unsigned char PWM=0xe7;   //赋初值
   8           
   9           
  10          void delayms(unsigned char ms);
  11          void delay(unsigned char t);
  12           
  13          /*********************************************************/
  14          void main()
  15          { 
  16   1       
  17   1           P1=0xff;
  18   1          TMOD=0x21 ;
  19   1          TH0=0xff ;             //50us延时常数
  20   1          TL0=0xce ;            //频率调节
  21   1       
  22   1          TH1=PWM ;            //脉宽调节
  23   1          TL1=0 ;
  24   1       
  25   1           EA=1;
  26   1           ET0=1;
  27   1           ET1=1;
  28   1         
  29   1           TR0=1 ;
  30   1       
  31   1         while(1)
  32   1         {
  33   2           do{
  34   3                  if(PWM!=0xff)
  35   3                 {PWM++ ;delayms(10);}
  36   3                 else Beep() ;
*** WARNING C206 IN LINE 36 OF main.c: 'Beep': missing function-prototype
  37   3               }
  38   2           while(K1==0);
  39   2       
  40   2           do{
  41   3                 if(PWM!=0xce)
  42   3                {PWM-- ;delayms(10);}
  43   3                 else Beep() ;
  44   3                }
  45   2           while(K2==0);
  46   2         }
  47   1      }
  48           
  49          void timer0() interrupt 1
  50          { 
  51   1          TR1=0 ;
  52   1          TH0=0xff ;
  53   1          TL0=0xce ;
C51 COMPILER V9.60.0.0   MAIN                                                              12/27/2025 19:02:38 PAGE 2   

  54   1          TH1=PWM ;
  55   1          TR1=1 ;
  56   1          P00=0 ;      //启动输出
  57   1      }
  58           
  59           
  60          void timer1() interrupt 3
  61          {
  62   1          TR1=0 ;
  63   1          P00=1 ;     //结束输出
  64   1      }
  65           
  66           
  67          /*********************************************************/
  68          // 延时子程序
  69          /*********************************************************/ 
  70          void delay(unsigned char t)
  71           {
  72   1          while(t--)   ;
  73   1       }
  74           
  75          /*********************************************************/
  76          // 延时子程序
  77          /*********************************************************/
  78          void delayms(unsigned char ms)
  79           
  80          {
  81   1          unsigned char i ;
  82   1          while(ms--)
  83   1           {
  84   2              for(i = 0 ; i < 120 ; i++) ;
  85   2           }
  86   1      }
  87           
  88          /*********************************************************/


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    119    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  1 WARNING(S),  0 ERROR(S)