addc.cpp

有关树WDM 驱动的编程.里面包含了许多实例,学习硬件的可以参考哦

#include "stdafx.h"
#include "pctest.h"
#include "ADdc.h"
#include "address.h"
#include "adc.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
//extern  
PCHAR mDynVxDName  = "\\\\.\\MatyDevice0";

/////////////////////////////////////////////////////////////////////////////
// CADdc dialog
CADdc::CADdc(CWnd* pParent /*=NULL*/)
	: CDialog(CADdc::IDD, pParent)
{
	//{{AFX_DATA_INIT(CADdc)
	m_date = 0;
	//}}AFX_DATA_INIT
	//hDevice1=NULL;
	hDevice=NULL;
}

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


BEGIN_MESSAGE_MAP(CADdc, CDialog)
	//{{AFX_MSG_MAP(CADdc)
	ON_WM_TIMER()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
//	ON_MESSAGE(WM_USER+0x100,Handleint)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CADdc message handlers
void CADdc::OnCancel()
{
}
BOOL CADdc::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	CString m_a;
	if(m_ad==TRUE)
	{
		m_a=("模数转换(ADC0809)查寻");
     SetWindowText(m_a);
	}else{
		m_a=("模数转换(ADC0809)中断");
     SetWindowText(m_a);
	}
  	 if(hDevice==NULL)
	{
	    hDevice = CreateFile(mDynVxDName, 
							GENERIC_READ,
							FILE_SHARE_READ,
							NULL,
							OPEN_EXISTING,
							0,
							NULL);
	if (hDevice == INVALID_HANDLE_VALUE)
	{
		AfxMessageBox("请检查板卡和驱动程序");
		CDialog::OnCancel();
		return FALSE;
	}
    W_AD=(Write_AD*)malloc(sizeof(Write_AD));
	if(m_ad==TRUE)
	{
	W_AD->Data=0;
    W_AD->Address=IC_ADC0809;
    DeviceIoControl(
					hDevice, 
					IOCTL_IOW,
					W_AD, 
					sizeof(W_AD)+1, 
					NULL, 
					0,
					&nRet, 
 					NULL);
	}else{
			W_AD->Data=0;
    W_AD->Address=0x4c;
    DeviceIoControl(
					hDevice, 
					IOCTL_OPEN_ISR,
					W_AD, 
					sizeof(W_AD)+1, 
					NULL, 
					0,
					&nRet, 
 					NULL);
		hEvent=CreateEvent(NULL, FALSE, FALSE, NULL);
    DeviceIoControl(
					hDevice, 
					IOCTL_TRS_EVENT,
					&hEvent, 
					sizeof(hEvent), 
					NULL, 
					0,
					&nRet, 
 					NULL);
           
	}
	 }
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CADdc::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default

if(m_ad==false)
{

if(WAIT_OBJECT_0==WaitForSingleObject(hEvent,1000))
	{
		BYTE data;
		BYTE OffSet=0x80;
		BOOL status = DeviceIoControl(
									hDevice, 
									IOCTL_IOR,
									&OffSet, 
									sizeof(BYTE), 
									&data, 
									0, 
									&nRet, 
 									NULL);
		m_date=data;
		UpdateData(FALSE);
		KillTimer(1);
        Seaech();                             //重新启动0809的AD转换。
	}


}
else

{	    BYTE data;
		BYTE OffSet=0x80;
		BOOL status = DeviceIoControl(
									hDevice, 
									IOCTL_IOR,
									&OffSet, 
									sizeof(BYTE), 
									&data, 
									0, 
									&nRet, 
 									NULL);
		m_date=data;
		UpdateData(FALSE);
		KillTimer(1);
        Seaech();  
}
	CDialog::OnTimer(nIDEvent);
}

void CADdc::OnOK() 
{
	// TODO: Add extra validation here
		if(m_ad==false)
	{
		W_AD->Address=0x4c;
		W_AD->Data=0;
		DeviceIoControl(hDevice,
			            IOCTL_CLOSE_ISR,
						W_AD,
						sizeof(W_AD)+1,
						NULL,
						0,
						&nRet,
						NULL);


	}
	if(hDevice!=NULL)
	{
		CloseHandle( hDevice);
		hDevice=NULL;
	}
	KillTimer(1);
	CDialog::OnOK();
}

void CADdc::OnButton1() 
{
	// TODO: Add your control notification handler code here
    Seaech();
}

void CADdc::Seaech()
{ 
  	W_AD->Data=0;
    W_AD->Address=IC_ADC0809;
    DeviceIoControl(
					hDevice, 
					IOCTL_IOW,
					W_AD, 
					sizeof(W_AD)+1, 
					NULL, 
					0,
					&nRet, 
 					NULL);
  SetTimer(1,100,NULL);
}