7912.c

这是一款LED驱动IC

#include <REG52.h>
#include <stdio.h>
typedef unsigned char uchar;
sbit DIN=P1^0;
sbit CLK=P1^1;
sbit LOAD=P1^2;

void send(uchar add,uchar dat)//发送16字节子函数
{ uchar ADS,i,j;
  LOAD=0;
  i=0;
  
  while(i<16)
  {  
     if(i<8)
     {ADS=add;}

     else {ADS=dat;}
	 
     for(j=8;j>=1;j--)
     {
	  CLK=1; 
	  DIN=ADS&0x80;
      
	  ADS=ADS<<1;
	   
	  CLK=0; 
    	  
	  }
     
	  i=i+8;
   }
    LOAD=1;

  }

main()
{
//uchar i;
//init();
//send(0x0c,0x00);//停机
//send(0x0c,0x01);//start
//send(0x0a,0x09);
CLK=0;
send(0x0c,0x01);//待机开关
send(0x0b,0x00);//扫描位数
send(0x0a,0x09);//亮度调