max197.h

12位AD转换MAX197

#include <reg52.h>
#include <absacc.h>
#include <intrins.h>

#define uchar unsigned char
#define uint unsigned int
#define _NOP()  _nop_()
#define tongdao1    0x40
#define tongdao2   0x41
#define ADCOM XBYTE[0x8000] 
#define ADHI XBYTE[0x8001]/*使A0=1 CS=0*/
#define ADLO XBYTE[0x8000]/*使A0=0 CS=0*/

sbit HBEN=P3^2;
sbit adbusy=P3^5;

void inttostr(int result);/*将当前值数据转换为ASCII码*/
int GetData(uchar tongdao);/*数据采集*/