commdlg.cpp

单片机与PC机串行通讯的源代码,开发环境VC++6.0

// commDlg.cpp : implementation file
//

#include "stdafx.h"
#include "comm.h"
#include "commDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CCommDlg dialog

CCommDlg::CCommDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCommDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCommDlg)
	m_strSendString = _T("");
	m_StrTemp = _T("");
	m_StrWide = _T("");
	m_StrComSelect = _T("");
	m_StrDataBits = _T("");
	m_StrParity = _T("");
	m_StrSpeed = _T("");
	m_StrStopBits = _T("");
	m_StrF = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CCommDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCommDlg)
	DDX_Control(pDX, IDC_BUTTON_MANUALSEND, m_CtrlManualSend);
	DDX_Control(pDX, IDC_BUTTON_RECEIVE, m_CtrlReceive);
	DDX_Control(pDX, IDC_COMBO_STOPBITS, m_CtrlStopBits);
	DDX_Control(pDX, IDC_COMBO_SPEED, m_CtrlSpeed);
	DDX_Control(pDX, IDC_COMBO_PARITY, m_CtrlParity);
	DDX_Control(pDX, IDC_COMBO_DATABITS, m_CtrlDataBits);
	DDX_Control(pDX, IDC_COMBO_COMSELECT, m_CtrlComm);
	DDX_Control(pDX, IDC_MSCOMM1, m_Com);
	DDX_Text(pDX, IDC_EDIT_TXDATA, m_strSendString);
	DDX_Text(pDX, IDC_EDIT_TEMPER, m_StrTemp);
	DDX_Text(pDX, IDC_EDIT_Wide, m_StrWide);
	DDX_CBString(pDX, IDC_COMBO_COMSELECT, m_StrComSelect);
	DDX_CBString(pDX, IDC_COMBO_DATABITS, m_StrDataBits);
	DDX_CBString(pDX, IDC_COMBO_PARITY, m_StrParity);
	DDX_CBString(pDX, IDC_COMBO_SPEED, m_StrSpeed);
	DDX_CBString(pDX, IDC_COMBO_STOPBITS, m_StrStopBits);
	DDX_Text(pDX, IDC_EDIT_RXDAT, m_StrF);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCommDlg, CDialog)
	//{{AFX_MSG_MAP(CCommDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_MANUALSEND, OnButtonManualsend)
	ON_BN_CLICKED(IDC_BUTTON_CLOSE, OnButtonClose)
	ON_BN_CLICKED(IDC_SendClear, OnSendClear)
	ON_BN_CLICKED(IDC_ReceiveClear, OnReceiveClear)
	ON_BN_CLICKED(IDC_BUTTON_RECEIVE, OnButtonReceive)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCommDlg message handlers

BOOL CCommDlg::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
     
	//bReceive=FALSE;
	UpdateData(TRUE);
	m_StrSpeed="4800";
	m_StrComSelect="Com1";
	m_StrStopBits="1";
	m_StrParity="NONE";
	m_StrDataBits="8";
//  m_CtrlComm.SelectString(2,"Com1");
//	m_CtrlSpeed.SelectString(2,"9600");
//	m_CtrlDataBits.SelectString(1,"8");
//	m_CtrlStopBits.SelectString(1,"1");
//	m_CtrlParity.SelectString(1,"NONE");
	UpdateData(FALSE);

	if(m_Com.GetPortOpen())
m_Com.SetPortOpen(FALSE);

m_Com.SetCommPort(1); //选择com1
if( !m_Com.GetPortOpen())
m_Com.SetPortOpen(TRUE);//打开串口
else
AfxMessageBox("cannot open serial port");

m_Com.SetSettings("4800,n,8,1"); //波特率4800，无校验，8个数据位，1个停止位 

m_Com.SetInputMode(1); //1：表示以二进制方式检取数据
m_Com.SetRThreshold(1); 
//参数1表示每当串口接收缓冲区中有多于或等于1个字符时将引发一个接收数据的OnComm事件
m_Com.SetInputLen(0); //设置当前接收区数据长度为0
m_Com.GetInput();//先预读缓冲区以清除残留数据



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

void CCommDlg::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 CCommDlg::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 CCommDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CCommDlg::OnButtonManualsend() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	CString strSend,Setting,p,c;
    if(m_StrComSelect=="COM1")
		c="1";
	else
		c="2";
	if(m_StrParity=="NONE")
	   p="n";
	if(m_StrParity=="ODD")
	   p="o";
	if(m_StrParity=="EVEN")
	   p="e";
	Setting=m_StrSpeed+","+p+","+m_StrDataBits+","+m_StrStopBits;
 //   m_strSendString=Setting;
	m_Com.SetSettings(Setting); //波特率9600，无校验，8个数据位，1个停止位 
	m_Com.SetOutput(COleVariant(m_strSendString));//发送数据
//	m_strSendString=_T("");
	UpdateData(FALSE);

	
}

void CCommDlg::OnButtonClose() 
{
	// TODO: Add your control notification handler code here
	 CDialog::OnOK();
}

void CCommDlg::OnSendClear() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);        
    m_strSendString=_T("");
	UpdateData(FALSE);	
}

void CCommDlg::OnReceiveClear() 
{
	// TODO: Add your control notification handler code here
	m_StrF="";
	m_StrTemp="";
	m_StrWide="";
	UpdateData(FALSE);
	
}

BEGIN_EVENTSINK_MAP(CCommDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CCommDlg)
	ON_EVENT(CCommDlg, IDC_MSCOMM1, 1 /* OnComm */, OnOnCommMscomm1, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CCommDlg::OnOnCommMscomm1() 
{
	// TODO: Add your control notification handler code here
    VARIANT variant_inp;
    COleSafeArray safearray_inp;
    LONG len,k;	
    BYTE rxdata[2048]; //设置BYTE数组 An 8-bit integerthat is not signed.
    CString strtemp;
    if(m_Com.GetCommEvent()==2) //事件值为2表示接收缓冲区内有字符
    {             ////////以下你可以根据自己的通信协议加入处理代码
        variant_inp=m_Com.GetInput(); //读缓冲区		
        safearray_inp=variant_inp; //VARIANT型变量转换为ColeSafeArray型变量
        len=safearray_inp.GetOneDimSize(); //得到有效数据长度
        for(k=0;k<len;k++)
            safearray_inp.GetElement(&k,rxdata+k);//转换为BYTE型数组
        for(k=0;k<len;k++) //将数组转换为Cstring型变量
        {
            BYTE bt=*(char*)(rxdata+k); //字符型
            strtemp.Format("%c",bt); //将字符送入临时变量strtemp存放
             m_StrData+=strtemp; //加入接收编辑框对应字符串 	
            if(strtemp=="e")
				Udata();          
        }

	//	flag=m_StrData.Find("f",1);
		
    }
    UpdateData(FALSE); //更新编辑框内容
	
}

void CCommDlg::OnButtonReceive() 
{
	// TODO: Add your control notification handler code here
	m_Com.GetInput();//先预读缓冲区以清除残留数据
//	bReceive=!bReceive;
//	if(bReceive)
//		m_CtrlReceive.SetWindowText(_T("停止"));
//	else
//		m_CtrlReceive.SetWindowText(_T("接收"));
	
	
}

void CCommDlg::Udata()
{ int flag1,flag2,flag3,S_len;

	    flag1=m_StrData.FindOneOf("f");
		flag2=m_StrData.FindOneOf("v");
		flag3=m_StrData.FindOneOf("t");
		S_len=m_StrData.FindOneOf("e");
		m_StrF="";
		m_StrWide="";
		m_StrTemp="";
		for(int j1=flag1+1;j1<flag2;j1++)
		{
             m_StrF+=m_StrData.GetAt(j1);
		}

        for(int j2=flag2+1;j2<flag3;j2++)
		{
             m_StrWide+=m_StrData.GetAt(j2);
		}

		for(int j3=flag3+1;j3<S_len;j3++)
		{
             m_StrTemp+=m_StrData.GetAt(j3);
		}
          UpdateData(FALSE); 
}