7912late.lst

这是一款LED驱动IC

C51 COMPILER V7.01  7912LATE                                                               11/19/2000 08:33:21 PAGE 1   


C51 COMPILER V7.01, COMPILATION OF MODULE 7912LATE
OBJECT MODULE PLACED IN 7912late.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 7912late.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)//发送16字节子函数
   9          { uchar ADS,j;
  10   1        LOAD=0;
  11   1         
  12   1        ADS=add;
  13   1        for(j=8;j>=1;j--)
  14   1        {       
  15   2            CLK=0;
  16   2            DIN=ADS&0x80;
  17   2            ADS=ADS<<1;
  18   2                CLK=1;  
  19   2         }
  20   1         CLK=0;
  21   1      }
  22          
  23          main()
  24          {
  25   1      uchar i;
  26   1      //init();
  27   1      //send(0x0c,0x00);//停机
  28   1      //send(0x0c,0x01);//start
  29   1      //send(0x0a,0x09);
  30   1      
  31   1      send(0x0c);
  32   1      send(0x01);
  33   1      LOAD=1;//待机开关
  34   1      
  35   1      send(0x0b);
  36   1      send(0x00);//扫描位数
  37   1      LOAD=1;
  38   1      
  39   1      send(0x0a);
  40   1      send(0x09);//亮度调