scommtestdlg.cpp

串口发送接收程序

// SCommTestDlg.cpp : implementation file
//

#include "stdafx.h"
#include "SCommTest.h"
#include "SCommTestDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CSCommTestDlg dialog

CSCommTestDlg::CSCommTestDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSCommTestDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSCommTestDlg)
	m_strRXData = _T("");
	m_strTXData = _T("");
	m_Stop = _T("");
	m_Data = _T("");
	m_show = _T("");
	m_Range = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CSCommTestDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSCommTestDlg)
	DDX_Control(pDX, IDC_LAMP, m_Lamp);
	DDX_Control(pDX, IDC_COMBOBAUD, m_Baud);
	DDX_Control(pDX, IDC_COMBOCHECK, m_Check);
	DDX_Control(pDX, IDC_COMBOCOM, m_Port);
	DDX_Control(pDX, IDC_CHECK_HEXDISPLAY, m_ctrlHexDisplay);
	DDX_Control(pDX, IDC_CHECK_HEXSEND, m_ctrlHexSend);
	DDX_Control(pDX, IDC_MSCOMM1, m_ctrlComm);
	DDX_Text(pDX, IDC_EDIT_RXDATA, m_strRXData);
	DDX_Text(pDX, IDC_EDIT_TXDATA, m_strTXData);
	DDX_Text(pDX, IDC_EDITSTOP, m_Stop);
	DDX_Text(pDX, IDC_EDITDATA, m_Data);
	DDX_Text(pDX, IDC_EDITSHOW, m_show);
	DDX_Text(pDX, IDC_EDITRANGE, m_Range);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSCommTestDlg, CDialog)
	//{{AFX_MSG_MAP(CSCommTestDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_MANUALSEND, OnButtonManualsend)
	ON_WM_TIMER()
	ON_BN_CLICKED(IDC_CHECK_AUTOSEND, OnCheckAutosend)
	ON_BN_CLICKED(IDC_BUTTON_SWITCH, OnButtonSwitch)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSCommTestDlg message handlers

BOOL CSCommTestDlg::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
    
    InitComm();
	return TRUE;  // return TRUE  unless you set the focus to a control
}



void CSCommTestDlg::InitComm()
{
	bstate=true;   //默认打开串口
    m_Data="8";
	m_Stop="1";
	m_Port.SetCurSel(0);
	m_Check.SetCurSel(2);
	m_Baud.SetCurSel(6);

	m_Range=600;
	UpdateData(false);

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

	m_ctrlComm.SetCommPort(1); //选择com1
	if( !m_ctrlComm.GetPortOpen())
	{
		m_ctrlComm.SetPortOpen(TRUE);//打开串口
		m_Lamp.SetIcon(AfxGetApp()->LoadIcon(IDI_LAMP));
	}
	else
	{
		AfxMessageBox("cannot open serial port");
		m_Lamp.SetIcon(AfxGetApp()->LoadIcon(IDI_OFF));
	}

	m_ctrlComm.SetSettings("9600,n,8,1"); //波特率9600，无校验，8个数据位，1个停止位 
    m_ctrlComm.SetInputMode(1); //1：表示以二进制方式检取数据
	m_ctrlComm.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_ctrlComm.SetInputLen(0); //设置当前接收区数据长度为0
	m_ctrlComm.GetInput();//先预读缓冲区以清除残留数据

    m_bAutoSend=false;

}




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

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

void CSCommTestDlg::OnComm() 
{
	// 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;
        strComm="";

		if(m_ctrlComm.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_ctrlComm.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    
			
			//*********转换为BYTE型数组**********
			//不转换的话则接收不到数据
		    for(k=0;k<len;k++)
			safearray_inp.GetElement(&k,rxdata+k);
			
			for(k=0;k<len;k++)   //将数组转换为CString型变量
			{       
				BYTE bt=*(char*)(rxdata+k); //字符型 
				if(m_ctrlHexDisplay.GetCheck())
					strtemp.Format("%02X ",bt); //将字符以十六进制方式送入临时变量strtemp存放，注意这里加入一个空隔
		     	else 
					strtemp.Format("%c",bt); //将字符送入临时变量strtemp存放
				
				m_strRXData+=strtemp; //加入接收编辑框对应字符串 }
				strComm+=strtemp;
			}
			UpdateData(FALSE); //更新编辑框内容
		}
		   
		UpdateData(FALSE); //更新编辑框内容
	    DealData();
}

void CSCommTestDlg::OnButtonManualsend() 
{
	// TODO: Add your control notification handler code here
/*	UpdateData(TRUE); //读取编辑框内容
	m_ctrlComm.SetOutput(COleVariant(m_strTXData));//发送数据
*/

	UpdateData(TRUE); //读取编辑框内容
	if(m_ctrlHexSend.GetCheck())
	{
		CByteArray hexdata;
		int len=String2Hex(m_strTXData,hexdata); //此处返回的len可以用于计算发送了多少个十六进制数
        m_ctrlComm.SetOutput(COleVariant(hexdata)); //发送十六进制数据
	}

	else 
		m_ctrlComm.SetOutput(COleVariant(m_strTXData));//发送ASCII字符数据

	
}

int CSCommTestDlg::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;
}


int  CSCommTestDlg::ConvertCharTEN(char ch,bool bhigh)
{
	int ii;

   	if (ch>='A' && ch<='F')
		ii=ch-'A'+10;
	else if (ch>='0' && ch<='9')
		ii=ch-48;
    else
		return 0;

	if (bhigh) ii=ii*16;

	return ii;
    
}

char CSCommTestDlg::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);

}

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


void CSCommTestDlg::DealData()
{   
	int i,len, ix2, ix3;  //,icode, irange
	double fgrav,icode, irange;
	char *ch, ch00, ch01, ch20, ch21,ch30,ch31;
	CString output,output1;

	output1=strRemain+strComm;
	//while(1)
	//{
       i=output1.Find(" 8");len=output1.GetLength()-i;
	   if(i>=0 && (len>11))
	   {
		    strRemain="";
/*	    	strComm=strComm.Mid(i+1,strComm.GetLength());
	        output=strComm;
	    	//AfxMessageBox(output);
			ch=strComm.GetBuffer(0);
*/

		    output1=output1.Mid(i+1,output1.GetLength());
	        //output1=":"+strComm;
	    	//AfxMessageBox(output);
			ch=output1.GetBuffer(0);


			//第一帧(量程) 低三位:ch[1]
			ch00=ch[0];
			ch01=ch[1];
			irange=ConvertCharTEN(ch01,0);
			if (irange==0)   irange=20;
            if (irange==1)   irange=10;
			if (irange==2)   irange=5;
			if (irange==3)   irange=2;
			if (irange==4)   irange=1;

			//第三帧(原码) 高位:ch[6]  低位:ch[7]
			ch20=ch[6];
			ch21=ch[7];
			ix2=ConvertCharTEN(ch20,1);
			ix2=ix2+ConvertCharTEN(ch21,0) ;

			//第四帧(原码) 高位:ch[9]  低位:ch[10]
			ch30=ch[9];
			ch31=ch[10];
        	ix3=ConvertCharTEN(ch30,1) ;
			ix3=ix3+ ConvertCharTEN(ch31,0) ;
			
			icode=ix2*128 + ix3; 
            fgrav=icode/4000;
            fgrav=fgrav	*m_Range; //600;
			fgrav=fgrav/irange;			
			m_show.Format("%f",fgrav);  
			UpdateData(false);
	   }
	   else 
	   {
		   strRemain=strComm;
		   return;
	   }
}


void CSCommTestDlg::OnCheckAutosend() 
{
	// TODO: Add your control notification handler code here
	m_bAutoSend=!m_bAutoSend;
	if(m_bAutoSend)
	{
		SetTimer(1,1000,NULL);//时间为1000毫秒
	}
	else
	{
		KillTimer(1);  //取消定时
	}

}

void CSCommTestDlg::OnButtonSwitch() 
{
	// TODO: Add your control notification handler code here
   	bstate=!bstate;
    UpdateData(true);

	int iport, ibaud, idatabit,icheck, istop;
	CString strPara, strTemp;
    
	strPara="";
	strTemp="";

	idatabit=atoi(m_Data);
	istop=atoi(m_Stop);

	iport=m_Port.GetCurSel()+1;  
	m_Baud.GetLBText(m_Baud.GetCurSel(),strPara);

	icheck=m_Check.GetCurSel();
	if (icheck==0)  strPara+=",1," ;   //EVEN ??  0-4=no,odd,even,mark,space
    if (icheck==1)  strPara+=",0,";  //ODD ??
    if (icheck==2)  strPara+=",n,"; //NONE
	
    strTemp.Format("%d",idatabit);
	strPara+=strTemp + ",";

	istop=atoi(m_Stop);
	strTemp.Format("%d",istop);
	strPara+=strTemp ;


	if(bstate)
	{
        m_Lamp.SetIcon(AfxGetApp()->LoadIcon(IDI_LAMP));

		try
		{
        m_ctrlComm.SetCommPort(iport);
		m_ctrlComm.SetSettings(strPara);//"9600,n,8,1");
		m_ctrlComm.SetPortOpen(true);
		}
		catch(CFileException e)
		{
			MessageBox(strPara);
			return;
		}

		(GetDlgItem(IDC_BUTTON_SWITCH))->SetWindowText("关闭串口"); //关闭
		

	}

	     
	else
	{
	     m_Lamp.SetIcon(AfxGetApp()->LoadIcon(IDI_OFF));

		 (GetDlgItem(IDC_BUTTON_SWITCH))->SetWindowText("打开串口");

		 m_ctrlComm.SetPortOpen(false);
	}

}