serialcommdlg.cpp

< 嵌入式系统编程>>源代码解析光盘,包括这本书各章节的示例代码（无密码）

// SerialCommDlg.cpp : implementation file
//

#include "stdafx.h"
#include "SerialComm.h"
#include "SerialCommDlg.h"
#include "stdio.h"
#include "conio.h"

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

unsigned int baseAdd;
int Receiver(void);
HANDLE hThread;
DWORD tid;
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSerialCommDlg dialog

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

void CSerialCommDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSerialCommDlg)
	DDX_Control(pDX, IDC_RECEIVE_EDIT, m_recEdit);
	DDX_Control(pDX, IDC_STOPBITS_COMBO, m_stopbits);
	DDX_Control(pDX, IDC_SET_BUTTON, m_setbutton);
	DDX_Control(pDX, IDC_SEND_EDIT, m_send);
	DDX_Control(pDX, IDC_SEND_BUTTON, m_sendbutton);

	DDX_Control(pDX, IDC_PORT_COMBO, m_port);
	DDX_Control(pDX, IDC_PARITY_COMBO, m_parity);
	DDX_Control(pDX, IDC_DATABITS_COMBO, m_databits);
	DDX_Control(pDX, IDC_BAUDRATE_COMBO, m_baudrate);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSerialCommDlg, CDialog)
	//{{AFX_MSG_MAP(CSerialCommDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_SET_BUTTON, OnSetButton)
	ON_BN_CLICKED(IDC_SEND_BUTTON, OnSendButton)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSerialCommDlg message handlers

BOOL CSerialCommDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 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
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CSerialCommDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CSerialCommDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CSerialCommDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CSerialCommDlg::OnSetButton() 
{
	// TODO: Add your control notification handler code here
	CString stopBits,port,parity,dataBits,baudRate;
	unsigned int LSB,MSB,dataFormat,temp;	


	m_stopbits.GetWindowText(stopBits);
	m_port.GetWindowText(port);
	m_parity.GetWindowText(parity);
	m_databits.GetWindowText(dataBits);
	m_baudrate.GetWindowText(baudRate);

	if((stopBits == "")||(port == "")||(parity == "")||(dataBits == "")||(baudRate==""))
	{
		AfxMessageBox("All the 5 Parameters are Necessary");
		return;
	}

	if(port == "1")
	{
		AfxMessageBox("Comm 1");
		baseAdd = 0x3f8;
	}
	else
	{
		AfxMessageBox("Comm 2");
		baseAdd = 0x2f8;
	}


	if(baudRate == "4800")
	{
		LSB	= 0x18;
		MSB = 0x00;
	}
	else if(baudRate == "9600")
	{
		LSB = 0x0c;
		MSB = 0x00;
	}
	else if(baudRate == "19200")
	{
		LSB = 0x06;
		MSB = 0x00;
	}

	
	if((dataBits == "8")&&(stopBits == "1")&&(parity == "NONE"))
		dataFormat = 0x03;
	else if((dataBits == "8")&&(stopBits == "1")&&(parity == "EVEN"))
		dataFormat = 0x1b;
	else if((dataBits == "8")&&(stopBits == "1")&&(parity == "ODD"))
		dataFormat = 0x0b;
	else if((dataBits == "8")&&(stopBits == "2")&&(parity == "NONE"))
		dataFormat = 0x07;
	else if((dataBits == "8")&&(stopBits == "2")&&(parity == "EVEN"))
		dataFormat = 0x1f;
	else if((dataBits == "8")&&(stopBits == "2")&&(parity == "ODD"))
		dataFormat = 0x0f;
	else if((dataBits == "7")&&(stopBits == "1")&&(parity == "NONE"))
		dataFormat = 0x02;
	else if((dataBits == "7")&&(stopBits == "1")&&(parity == "EVEN"))
		dataFormat = 0x1a;
	else if((dataBits == "7")&&(stopBits == "1")&&(parity == "ODD"))
		dataFormat = 0x0a;
	else if((dataBits == "7")&&(stopBits == "2")&&(parity == "NONE"))
		dataFormat = 0x06;
	else if((dataBits == "7")&&(stopBits == "2")&&(parity == "EVEN"))
		dataFormat = 0x1e;
	else if((dataBits == "7")&&(stopBits == "2")&&(parity == "ODD"))
		dataFormat = 0x0e;
	

	_outp(baseAdd+3,dataFormat); // setting dataformat register

	temp = _inp(baseAdd+3);
	temp = temp | 0x10;
	_outp(baseAdd+3,temp); //setting DLAb bit to 1

	_outp(baseAdd,LSB);    // setting Baud Rate
	_outp(baseAdd+1,MSB);

	temp = _inp(baseAdd+3);
	temp = temp & 0x7f;
	_outp(baseAdd+3,temp); //Resetting DLAb bit to 1

	m_stopbits.EnableWindow(FALSE);
	m_port.EnableWindow(FALSE);
	m_parity.EnableWindow(FALSE);
	m_databits.EnableWindow(FALSE);
	m_baudrate.EnableWindow(FALSE);					
	m_setbutton.EnableWindow(FALSE);

	m_send.EnableWindow(TRUE);
	m_sendbutton.EnableWindow(TRUE);
	m_recEdit.EnableWindow(TRUE);
	
	/*hThread = CreateThread(0, 
                           0,
                           (LPTHREAD_START_ROUTINE) Receiver,
                           0,
                           0,
                           &tid);

	SetThreadPriority(hThread,21);*/
	AfxBeginThread((AFX_THREADPROC)Receiver,NULL);
}

void CSerialCommDlg::OnSendButton() 
{
	// TODO: Add your control notification handler code here
	CString sendMsg;
	int i = 0;
	unsigned int temp;
	m_send.GetWindowText(sendMsg);

	for(i=0;i<sendMsg.GetLength();i++)
	{
		while(!( (_inp(baseAdd+5)&0x40) && (_inp(baseAdd+5)&0x20)) );
		//Sleep(50);
		_outp(baseAdd,sendMsg[i]);
	}
	
	m_send.SetWindowText("");
	
}

int Receiver()
{
	CEdit *recEdit = (CEdit*)AfxGetMainWnd()->GetDlgItem(IDC_RECEIVE_EDIT);
	char ch;
	CString str,str1;
	while(1)
	{
		while(!(_inp(baseAdd+5)&0x01));
		ch = _inp(baseAdd);
		str.Format("%c",ch);
		//AfxMessageBox(str);
		recEdit->GetWindowText(str1);
		//AfxMessageBox(str1);
		str = str1 + str;
		recEdit->SetWindowText("");
		recEdit->SetWindowText(str);
	}
	return 0;
}