currentv.cpp

这是一个水箱的液位控制程序

// currentv.cpp : implementation file
//

#include "stdafx.h"
#include "水箱实验.h"
#include "currentv.h"
#include "conio.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// Ccurrentv dialog


Ccurrentv::Ccurrentv(CWnd* pParent /*=NULL*/)
	: CDialog(Ccurrentv::IDD, pParent)
{
	base=0x0100;
	//{{AFX_DATA_INIT(Ccurrentv)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
}


void Ccurrentv::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(Ccurrentv)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(Ccurrentv, CDialog)
	//{{AFX_MSG_MAP(Ccurrentv)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// Ccurrentv message handlers

BOOL Ccurrentv::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	CString str1;
	CString str2;
	//int value1=GetData1();  //与硬件连接时取消注释；
	int value1=3000;
	int value2=4000;
	//int value2=GetData2();
	float valueshow1=float(value1)*5/4096;
	float valueshow2=float(value2)*5/4096;

	str1.Format("%4.3f",valueshow1);
	str1+="V";
	SetDlgItemText(IDC_GETINPUT1,str1);
	str2.Format("%4.3f",valueshow2);
	str2+="V";
	SetDlgItemText(IDC_GETINPUT2,str2);
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

int Ccurrentv::GetData1()
{
//int indata1;
	int number=0;
	int dl,dh,i;//定义过程变量
    int value;
	dl=_inp(base+3);

	_outp(base,number);//送通道代码
	for(i=0;i<1000;i++);//延时
	_outp(base+1,0);//启动A/D
	do{
		;
	}while(_inp(base+2)>=128);
	dh=_inp(base+2);
	dl=_inp(base+3);
	value=dh*256+dl;
 	return value;
}

int Ccurrentv::GetData2()
{
//int indata2;
	int number=1;
	int dl,dh,i;//定义过程变量
    int value;
	dl=_inp(base+3);

	_outp(base,number);//送通道代码
	for(i=0;i<1000;i++);//延时
	_outp(base+1,0);//启动A/D
	do{
		;
	}while(_inp(base+2)>=128);
	dh=_inp(base+2);
	dl=_inp(base+3);
	value=dh*256+dl;
 	return value;
}