//AD頭文件定義
#ifndef			AD2543_H
#define			AD2543_H
#include		<reg52.h>
#include		"mdefine.h"

sbit   	AD_CLOCK	=	P1^1;   /*2543時(shí)鐘*/
sbit  	AD_D_IN		=	P1^2;   /*2543輸入*/
sbit  	AD_D_OUT	=	P1^3;   /*2543輸出*/
sbit   	AD_CS			=	P1^4;   /*2543片選*/
//功能：延時(shí)模塊    輸入?yún)?shù)：n要延時(shí)的周期數(shù)

void   delayy(uchar   n)
{
  uchar   i;
  for(i=0;i<n;i++)
  {
		_nop_();
  }
}
/**************************************
      名稱：Read2543
      功能：TLC2543驅(qū)動(dòng)模塊
      輸入?yún)?shù)：port通道號(hào)
      輸出參數(shù)：ad轉(zhuǎn)換值
 *************************************/
 #pragma  disable
uint   Read2543(uchar  port)
{
	uint ad=0,i;
	AD_CS = 1;
	AD_CS = 0;
	AD_CLOCK=0;
	port<<=4;
	for(i=0;i<12;i++)
	{
		if(AD_D_OUT) ad|=0x01;
  		AD_D_IN=(bit)(port&0x80);
  		AD_CLOCK=1;
  		delayy(3);
  		AD_CLOCK=0;
  		delayy(3);
  		port<<=1;
		ad<<=1;
  	}
	AD_CS=1;
	ad>>=1;
	return(ad);
}

#endif