7912.lst

这是一款LED驱动IC

C51 COMPILER V7.01  7912                                                                   11/18/2000 14:20:08 PAGE 1   


C51 COMPILER V7.01, COMPILATION OF MODULE 7912
OBJECT MODULE PLACED IN 7912.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 7912.c OPTIMIZE(2,SIZE) BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <REG52.h>
   2          #include <stdio.h>
   3          typedef unsigned char uchar;
   4          sbit DIN=P1^0;
   5          sbit CLK=P1^1;
   6          sbit LOAD=P1^2;
   7          
   8          void send(uchar add,uchar dat)//发送16字节子函数
   9          { uchar ADS,i,j;
  10   1        LOAD=0;
  11   1        i=0;
  12   1        
  13   1        while(i<16)
  14   1        {  
  15   2           if(i<8)
  16   2           {ADS=add;}
  17   2      
  18   2           else {ADS=dat;}
  19   2               
  20   2           for(j=8;j>=1;j--)
  21   2           {
  22   3                CLK=1; 
  23   3                DIN=ADS&0x80;
  24   3            
  25   3                ADS=ADS<<1;
  26   3                 
  27   3                CLK=0; 
  28   3                
  29   3                }
  30   2           
  31   2                i=i+8;
  32   2         }
  33   1          LOAD=1;
  34   1      
  35   1        }
  36          
  37          main()
  38          {
  39   1      //uchar i;
  40   1      //init();
  41   1      //send(0x0c,0x00);//停机
  42   1      //send(0x0c,0x01);//start
  43   1      //send(0x0a,0x09);
  44   1      CLK=0;
  45   1      send(0x0c,0x01);//待机开关
  46   1      send(0x0b,0x00);//扫描位数
  47   1      send(0x0a,0x09);//亮度调