pc_c51dlg.cpp

利用VC提供所的MSCOMM控件实现了单片机和微机之间的串行通信

// pc_c51Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "pc_c51.h"
#include "pc_c51Dlg.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()

/////////////////////////////////////////////////////////////////////////////
// CPc_c51Dlg dialog

CPc_c51Dlg::CPc_c51Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CPc_c51Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CPc_c51Dlg)
	m_str_send = _T("00H");
	m_str_recv = _T("");
	m_bAutoSend = FALSE;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CPc_c51Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CPc_c51Dlg)
	DDX_Control(pDX, IDC_HEX, m_hex);
	DDX_Text(pDX, IDC_EDIT1_SEND, m_str_send);
	DDX_Control(pDX, IDC_MSCOMM1, m_mscomm);
	DDX_Text(pDX, IDC_EDIT2_RECV, m_str_recv);
	DDX_Control(pDX, IDC_COMM_FLAG, m_commBitmap);
	DDX_Check(pDX, IDC_AUTO_SEND, m_bAutoSend);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CPc_c51Dlg, CDialog)
	//{{AFX_MSG_MAP(CPc_c51Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(ID_CLR, OnClr)
	ON_BN_CLICKED(ID_SEND, OnSend)
	ON_BN_CLICKED(IDC_HEX, OnHex)
	ON_BN_DOUBLECLICKED(ID_SEND, OnDoubleclickedSend)
	ON_BN_CLICKED(IDC_open_Comm, OnopenComm)
	ON_WM_TIMER()
	ON_BN_CLICKED(IDC_AUTO_SEND, OnAutoSend)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CPc_c51Dlg message handlers

BOOL CPc_c51Dlg::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
//	if(m_mscomm.GetPortOpen())     //如果串口已打开，则关闭串口
//		m_mscomm.SetPortOpen(FALSE);
//	m_mscomm.SetCommPort(1);       //选择COM1
//	if(!m_mscomm.GetPortOpen())
//		m_mscomm.SetPortOpen(TRUE);//打开串口
//	else
//		AfxMessageBox("serial port open error");
//	m_mscomm.SetSettings("9600, n, 8, 1"); //设置波特率9600，无校验， 8位数据位，1位停止位
//	m_mscomm.SetRThreshold(1);     //串口接收缓冲区中多余或等于一个字符时将产生接收数据的OnComm事件
//	m_mscomm.SetInputLen(0);      //设置当前接收区数据长度为0
//	m_mscomm.GetInput();          //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 CPc_c51Dlg::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 CPc_c51Dlg::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 CPc_c51Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

BEGIN_EVENTSINK_MAP(CPc_c51Dlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CPc_c51Dlg)
	ON_EVENT(CPc_c51Dlg, IDC_MSCOMM1, 1 /* OnComm */, OnComm, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CPc_c51Dlg::OnClr() 
{
	// TODO: Add your control notification handler code here
	
	m_str_send == " "; //清空发送文本框
	m_str_recv == " "; //清空接收文本框
	UpdateData(FALSE); //更新文本框内容
}

void CPc_c51Dlg::OnSend() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE); //READE THE CONTEST IN THE EDIT add at 7.17
	if(m_hex.GetCheck())
	{
		CByteArray hexdata;
		int len = String2Hex(m_str_send, hexdata);   //转换十六进制格式的字符串为CByteArray类  
		m_mscomm.SetOutput(COleVariant(hexdata));
	}
	else 
		m_mscomm.SetOutput(COleVariant(m_str_send));   //发送字符串
}

void CPc_c51Dlg::OnComm() 
{
	// TODO: Add your control notification handler code here
	VARIANT variant_tmp;              //建立转换数据类型用到的变量
	COleSafeArray safearray_tmp;
	LONG len, i;
	BYTE buf[2048];
	CString str_tmp;

	short eventId = m_mscomm.GetCommEvent();
	switch (eventId)
	{
	case 1:
		AfxMessageBox(_T("send end"));
		break;
	case 2:
		AfxMessageBox(_T("receive end"));
		break;
	case 3:
		AfxMessageBox(_T("Change in Clear To Send line"));
		break;
	case 4:
		AfxMessageBox(_T("Change in Data Set Ready line"));
		break;
	case 5:
		AfxMessageBox(_T("Change in Carrier Detect line"));
		break;
	case 6:
		AfxMessageBox(_T("Ring detected"));
		break;
	case 7:
		AfxMessageBox(_T("End Of File "));
		break;
	case 1001:
		AfxMessageBox(_T("A Break signal was received"));
		break;
	case 1004:
		AfxMessageBox(_T("Framing Error. The hardware detected a framing error"));
		break;
	case 1006:
		AfxMessageBox(_T("Port Overrun"));
		break;
	case 1008:
		AfxMessageBox(_T("Receive Buffer Overflow"));
		break;
	case 1009:
		AfxMessageBox(_T("Parity Error"));
		break;
	case 1010:
		AfxMessageBox(_T("Transmit Buffer Full"));
		break;
	case 1011:
		AfxMessageBox(_T("Unexpected error retrieving Device Control Block (DCB) for the port."));
		break;
	default:;
	}

	if(m_mscomm.GetCommEvent()==2)                 //接收缓冲区内有字符
	{
		variant_tmp = m_mscomm.GetInput();         //读缓冲区
		safearray_tmp = variant_tmp;               //转换为coleSafeArray型变量
		len = safearray_tmp.GetOneDimSize();       
	    for(i=0; i<len; i++)
			safearray_tmp.GetElement(&i, buf+i);
		for(i=0; i<len; i++)
		{
			BYTE ch = *(char*)(buf + i);
			if(m_hex.GetCheck())                   //检查单选框内容
				str_tmp.Format("%02X", ch);         //将字符以十六进制方式显示
			else
				str_tmp.Format("%c", ch);          //将字符以ASCII方式显示
			m_str_recv += str_tmp;                 //加入接收数据框对应字符串
		}

	}
   
	UpdateData(FALSE);                            //更新接收数据框内容
	
}

char CPc_c51Dlg::ConvertHexChar(char ch)
{
	if((ch>='0')&&(ch<='9'))
		return ch - 0x30;
	else if((ch>='A')&&(ch<='F'))
		return ch-'A'+10;
	else if((ch>='a')&&(ch<='f'))
		return ch-'a'+10;
	else 
		return -1;

}

int CPc_c51Dlg::String2Hex(CString str, CByteArray &senddata)
{
	int hexdata,lowhexdata;
	int hexdatalen = 0;
	int len = str.GetLength();
	senddata.SetSize(len/2);
	for(int i=0;i<len; )
	{
		char lstr, hstr = str[i];
		if(hstr==' ')
		{
			i++;
			continue;
		}
		i++;
		if(i>len)
			break;
		lstr = str[i];
		hexdata = ConvertHexChar(hstr);
		lowhexdata = ConvertHexChar(lstr);
		if((hexdata==16)||(lowhexdata==16))
			break;
		else
			hexdata = hexdata*16 + lowhexdata;
		i++;
		senddata[hexdatalen] = (char)hexdata;
		hexdatalen++;
	}
	senddata.SetSize(hexdatalen);

	return hexdatalen;
}

void CPc_c51Dlg::OnHex() 
{
	// TODO: Add your control notification handler code here
	
}

void CPc_c51Dlg::OnDoubleclickedSend() 
{
	// TODO: Add your control notification handler code here
	
}

void CPc_c51Dlg::OnopenComm() 
{
	// TODO: Add your control notification handler code here
		TRY
	{	
		if(m_mscomm.GetPortOpen())     //如果串口已打开，则关闭串口
		m_mscomm.SetPortOpen(FALSE);
		m_mscomm.SetCommPort(1);       //选择COM1
//	if(!m_mscomm.GetPortOpen())
//		m_mscomm.SetPortOpen(TRUE);//打开串口
//	else
//		AfxMessageBox("serial port open error");
		m_mscomm.SetSettings("9600, n, 8, 1");
		m_mscomm.SetInputMode(1);
//		m_mscomm.SetOutBufferSize(1);
//		m_mscomm.SetInBufferSize(1);
		m_mscomm.SetPortOpen(TRUE);
	}
	CATCH(COleDispatchException, e)
	{
		AfxMessageBox(_T("串口打开失败"));
		m_commBitmap.SetBitmap(::LoadBitmap(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDB_COMM_LINK_ERROR)));
		e->Delete();
		return;
	}
	END_CATCH	


	AfxMessageBox(_T("打开串口成功"));
	m_commBitmap.SetBitmap(::LoadBitmap(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDB_COMM_LINK_OK)));	
    short eventId = m_mscomm.GetCommEvent();

}



void CPc_c51Dlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	OnSend();
	CDialog::OnTimer(nIDEvent);
}


void CPc_c51Dlg::OnAutoSend() 
{
	// TODO: Add your control notification handler code here
	m_bAutoSend = !m_bAutoSend;
	if(m_bAutoSend)
		SetTimer(1,1000,NULL);
	else
		KillTimer(1);
}