newcomdlg.cpp

EVC下的WindowsCE系统下的AD转换为AIN0程序

// NewComDlg.cpp : implementation file
//

#include "stdafx.h"
#include "NewCom.h"
#include "NewComDlg.h"
#include "ser.h"//关于硬件地址的映射的定义

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
volatile IOPreg *v_pIOPRegs;
volatile ADCreg *v_pADCreg;
CString strRec;
/////////////////////////////////////////////////////////////////////////////
// CNewComDlg dialog

CNewComDlg::CNewComDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CNewComDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CNewComDlg)
	m_ad = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CNewComDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CNewComDlg)
	DDX_Text(pDX, IDC_EDIT1, m_ad);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CNewComDlg, CDialog)
	//{{AFX_MSG_MAP(CNewComDlg)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CNewComDlg message handlers

BOOL CNewComDlg::OnInitDialog()
{

	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	CenterWindow(GetDesktopWindow());	// center to the hpc screen

	// TODO: Add extra initialization here
	//映射寄存器地址

    v_pIOPRegs = (volatile IOPreg*)VirtualAlloc(0, sizeof(IOPreg), MEM_RESERVE, PAGE_NOACCESS);
	if (v_pIOPRegs == NULL) 
	{
	  DEBUGMSG (1,(TEXT("v_pIOPRegs is not allocated\n\r")));
	  return TRUE;
	}
	if (!VirtualCopy((PVOID)v_pIOPRegs, (PVOID)IOP_BASE, sizeof(IOPreg), PAGE_READWRITE|PAGE_NOCACHE)) {
	  DEBUGMSG (1,(TEXT("v_pIOPRegs is not mapped\n\r")));
	  return TRUE;
	}
	DEBUGMSG (1,(TEXT("v_pIOPRegs is mapped to %x\n\r"), v_pIOPRegs));
 
    v_pADCreg = (volatile ADCreg*)VirtualAlloc(0, sizeof(ADCreg), MEM_RESERVE, PAGE_NOACCESS);
	if (v_pIOPRegs == NULL) 
	{
	  DEBUGMSG (1,(TEXT("v_pADCreg is not allocated\n\r")));
	  return TRUE;
	}
	if (!VirtualCopy((PVOID)v_pADCreg, (PVOID)ADC_BASE, sizeof(ADCreg), PAGE_READWRITE|PAGE_NOCACHE)) {
	  DEBUGMSG (1,(TEXT("v_pADCreg is not mapped\n\r")));
	  return TRUE;
	}
	DEBUGMSG (1,(TEXT("v_pADCreg is mapped to %x\n\r"), v_pADCreg));

	//myinit_beep();
	return TRUE;  // return TRUE  unless you set the focus to a control
}



void CNewComDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	//static int prevCh=-1;
	int ad,i,preScaler;
	int rADCCON_save = v_pADCreg->rADCCON;
	preScaler = 50000000/2500000 -1;

    v_pADCreg->rADCCON = (1<<14)|(preScaler<<6)|(0<<3);	//setup channel

	for(i=0;i<10000;i++);	//delay to set up the next channel
    v_pADCreg->rADCCON |=0x1;   //start ADC

    while(v_pADCreg->rADCCON & 0x1);	//check if Enable_start is low
    while(!(v_pADCreg->rADCCON & 0x8000));	//check if EC(End of Conversion) flag is high
	ad=(int)v_pADCreg->rADCDAT0 & 0x3ff;

	v_pADCreg->rADCCON = rADCCON_save;

	m_ad=ad;
	UpdateData(FALSE);
}