pwm.lst

nrf24e1有关PWM的源码程序

C51 COMPILER V7.20   PWM                                                                   07/09/2008 16:48:25 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE PWM
OBJECT MODULE PLACED IN pwm.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE pwm.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <reg24e1.h>
   2          /*  LED1-LED4  */
   3          sbit LED2      = P0^6;
   4          sbit LED3      = P0^5;
   5          sbit LED4      = P0^4;
   6          void Delay100us(volatile unsigned char n)
   7          {
   8   1          unsigned char i;
   9   1          while(n--)
  10   1              for(i=0;i<35;i++)
  11   1                  ;
  12   1      }
  13          
  14          void Delayms(volatile unsigned char n)
  15          {
  16   1          unsigned char j;
  17   1          while(n--)
  18   1              for(j=0;j<10;j++)
  19   1                      Delay100us(10);
  20   1      
  21   1      }
  22          void InitPWM(void)
  23          {
  24   1                        // Enable PWM output
  25   1          PWMCON = 0xFF;                  // Enable 8 bit PWM with minimum prescaler
  26   1      }
  27          void WritePWM(unsigned char b)
  28          {
  29   1          PWMDUTY = b;
  30   1      }
  31             
  32          void main(void)
  33          {
  34   1          P0_ALT=0x86;
  35   1          P0_DIR=0x06;
  36   1          
  37   1          LED2=0;
  38   1          Delayms(20);  
  39   1          LED2=1;
  40   1      
  41   1          LED3=0;
  42   1          Delayms(20);  
  43   1          LED3=1;
  44   1      
  45   1          LED4=0;
  46   1          Delayms(20);  
  47   1          LED4=1;
  48   1      
  49   1          InitPWM();
  50   1              while(1)
  51   1              {
  52   2                WritePWM(0x6F);
  53   2                }
  54   1              }
  55          
C51 COMPILER V7.20   PWM                                                                   07/09/2008 16:48:25 PAGE 2   

  56           


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     97    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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