led.lst

tea5767_102模块,i2c总线控制方式

C51 COMPILER V7.07   LED                                                                   08/22/2008 23:25:40 PAGE 1   


C51 COMPILER V7.07, COMPILATION OF MODULE LED
OBJECT MODULE PLACED IN led.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE led.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          
   2          #include "led.h"
   3          #include <reg52.h>
   4          #include <intrins.h>
   5          
   6          //总共4个LED，频率显示，小数点后一位小数
   7          //段P1口，位P22,P23,P24,P25
   8          
   9          #define LED_DATA P1
  10          
  11          #define LED1 0x04
  12          #define LED2 0x08
  13          #define LED3 0x10
  14          #define LED4 0x20
  15          #define LED_0 0x0
  16          
  17          #define LED_SET P2
  18          
  19          unsigned char LED_Code[]={/*0,1,2,3,4,5,6,7,8,9,' '(不显示)*/
  20          //0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x00};
  21            0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xFF};
  22          
  23          //#define LED0 PORTB3
  24          //str格式"P100.5"/"F 88.8"
  25          void Display_LED(unsigned char * str)           
  26          {
  27   1        
  28   1      //LED从左向右
  29   1        //写第1个数 P22 00000100  
  30   1        LED_DATA = LED_Code[*str];
  31   1        LED_SET |= LED1;  
  32   1        _nop_();
  33   1        _nop_();
  34   1        _nop_();
  35   1        _nop_();
  36   1        LED_SET &= ~LED1;
  37   1        
  38   1        //写第2个数  P23 0000 1000
  39   1        _nop_();
  40   1        _nop_();
  41   1       
  42   1        LED_DATA = LED_Code[*(str+1)];
  43   1        LED_SET |= LED2;  
  44   1        _nop_();
  45   1        _nop_();
  46   1        _nop_();
  47   1        _nop_();
  48   1      
  49   1        LED_SET &= ~LED2;  
  50   1      
  51   1        //写第3个数  P24 0001 0000
  52   1        _nop_();
  53   1        _nop_();
  54   1      
  55   1        LED_DATA = LED_Code[*(str+2)]&0x7F;//小数点;
C51 COMPILER V7.07   LED                                                                   08/22/2008 23:25:40 PAGE 2   

  56   1        LED_SET |= LED3;
  57   1        _nop_();
  58   1        _nop_();
  59   1        _nop_();
  60   1        _nop_();
  61   1        LED_SET &= ~LED3;
  62   1        //写第4个数  P25 0010 0000
  63   1        _nop_();
  64   1        _nop_();
  65   1      
  66   1        if (*(str+4))
  67   1           LED_DATA = LED_Code[*(str+3)]&0x7F;
  68   1        else LED_DATA = LED_Code[*(str+3)];
  69   1        LED_SET |= LED4;
  70   1        _nop_();
  71   1        _nop_();
  72   1        _nop_();
  73   1        _nop_();
  74   1      
  75   1        LED_SET &= ~LED4;
  76   1        LED_SET = LED_0; 
  77   1      
  78   1       
  79   1      }
  80          
  81          void Freq_2_Buffer(unsigned long Freq,unsigned char * disbuffer)
  82          {
  83   1      // 0  显示最左一位，百位；1 十位；2 个位； 3 小数点后一位  
  84   1              unsigned int tmp;
  85   1              tmp = Freq/100;
  86   1              disbuffer[0] = tmp / 1000 ;
  87   1      
  88   1      //        disbuffer[0] = 10;              //不显示
  89   1      //      else disbuffer[0] = 1;
  90   1              
  91   1              disbuffer[1] = (tmp / 100)%10 ;
  92   1              disbuffer[2] = (tmp / 10)%10 ;
  93   1              disbuffer[3] = tmp %10 ;
  94   1      }
  95          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    240    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     11       5
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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