/****************************************
          MAX531的驅(qū)動(dòng)程序
***************************************/
#ifndef _max531_h
#define _max531_h

#include <reg52.h>			    	// 引用標(biāo)準(zhǔn)庫(kù)的頭文件
#include <intrins.h>

#define uchar unsigned char 
#define uint unsigned int

sbit max531_dout=P0^0;
sbit max531_clk=P0^1;
sbit max531_cs=P0^2;

/***********************************************
函數(shù)：void write_max531(uint dat)
功能：MAX531的驅(qū)動(dòng)程序
*************************************************/
void write_max531(uint dat)
{
  uchar i=0;
  max531_cs=0;
  for(i=0;i<16;i++)
   {
    max531_clk=0;
	if(dat&0x8000)max531_dout=1;
	else max531_dout=0;
	max531_clk=1;
	dat=dat<<1;
	}
  max531_cs=1;
}

 
#endif