7912late.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)//发送16字节子函数
{ uchar ADS,j;
  LOAD=0;
   
  ADS=add;
  for(j=8;j>=1;j--)
  {	  
      CLK=0;
      DIN=ADS&0x80;
      ADS=ADS<<1;
	  CLK=1;  
   }
   CLK=0;
}

main()
{
uchar i;
//init();
//send(0x0c,0x00);//停机
//send(0x0c,0x01);//start
//send(0x0a,0x09);

send(0x0c);
send(0x01);
LOAD=1;//待机开关

send(0x0b);
send(0x00);//扫描位数
LOAD=1;

send(0x0a);
send(0x09);//亮度调