pcserialtestdlg.cpp

用vc实现嵌入式系统的串行通讯

	}

	//数据传输率, 无校验, 8个数据为, 1个停止位
	m_CommCtrl.SetSettings (m_strSettings);
	m_CommCtrl.SetRThreshold (1);             //参数1表示每当串口接受缓冲区中有多个或1个字符时
	                                          //将引发一个接受数据的OnComm事件
	m_CommCtrl.SetInputMode (1);

	m_CommCtrl.SetInputLen (0);

	m_CommCtrl.GetInput ();
}

void CPCSerialTestDlg::OnOpenPort() //开串口的消息响应函数
{
	// TODO: Add your control notification handler code here
	OpenPort ();
	m_ReceiveEdit.SetWindowText (_T("串口已经打开"));//点击后接收区显示内容
	m_ReceiveEdit.RedrawWindow ();//窗口重绘
}

void CPCSerialTestDlg::OnHandOutput() //在此定义一个手动输出的消息响应函数
{
	// TODO: Add your control notification handler code here
	if (m_nOutPutMode > 0)                                   //在已经进行发送模式选择后，再按情况进行发送处理
	{
		//按16进制发送
		CByteArray hexdata;  //动态Byte数组
		int len = String2Hex (m_strSendString, hexdata);//对发送的字符数据串进行转换处理，得到串长度
		m_CommCtrl.SetOutput (COleVariant (hexdata));//发送数据
	}

	else
	{
		//按ASCII码发送
		m_strSendString = "S" + m_strSendString + "E";//先发初始位："S",再发字符串，最后发截止位："E".
		m_CommCtrl.SetOutput (COleVariant (m_strSendString));//发送数据
	}
}

//自动发送按钮的单击响应函数
void CPCSerialTestDlg::OnAutoOutput() 
{
	// TODO: Add your control notification handler code here
	m_bSend = !m_bSend;
	if(m_bSend)
	{
		m_ReceiveEdit.SetWindowText (_T("自动发送"));
		SetTimer (1, m_nTime, NULL);
	}

	else
	{
		m_ReceiveEdit.SetWindowText (_T("停止发送"));
		KillTimer (1);
	}
}

void CPCSerialTestDlg::OnStopRec() //停止接收的消息响应函数
{
	// TODO: Add your control notification handler code here
	
}

//开始接受按钮的响应函数
void CPCSerialTestDlg::OnStartRec() 
{
	// TODO: Add your control notification handler code here
	m_CommCtrl.GetInput ();
	m_bReceive = !m_bReceive;
	if(m_bReceive)
		m_ReceiveEdit.SetWindowText (_T("停止接受"));
	else
		m_ReceiveEdit.SetWindowText (_T("开始接受"));
	m_ReceiveEdit.RedrawWindow ();
}

void CPCSerialTestDlg::OnShutPort() 
{
	// TODO: Add your control notification handler code here
	KillTimer (1);
	if(m_CommCtrl.GetPortOpen ())//在检测到串口开的情况下
	{
		m_CommCtrl.SetPortOpen (FALSE);//关闭串口
	}
}

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

void CPCSerialTestDlg::OnDeleteReceive() 
{
	// TODO: Add your control notification handler code here
	m_ReceiveEdit.Clear ();
	m_ReceiveEdit.RedrawWindow ();
}

void CPCSerialTestDlg::OnSelchangeComboSendtype() 
{
	// TODO: Add your control notification handler code here
	m_nOutPutMode = m_SendType.GetCurSel ();   // 输出模式变量取得选择的值
}

//字符串转换为16进制
//调用ConvertHexChar完成每个字符的转换
int CPCSerialTestDlg::String2Hex (CString str, CByteArray &senddata)
{
	int hexdata, lowhexdata;
	int hexdatalen = 0;
	int len = str.GetLength ();//得到字符串的长度

	senddata.SetSize (len / 2);

	//将字符串中的字符转换为16进制
	for (int i = 0; i < len;)
	{
		char lstr, hstr = str[i];
		if (hstr == ' ')
		{
			i++;
			continue;
		}

		i++;
		if (i >= len)
			break;
		lstr = str[i];

		//高位转换
		hexdata = ConvertHexChar (hstr);

		//低位转换
		lowhexdata = ConvertHexChar (lstr);
		if ((hexdata == 16) || (lowhexdata == 16))
			break;

		else
			hexdata = hexdata * 16 + lowhexdata;
		
		i++;
		senddata[hexdatalen] = (char)hexdata;
		hexdatalen++;
	}

	//返回16进制转换结果数组
	senddata.SetSize (hexdatalen);
	return hexdatalen;
}

//将字符转换为相应的16进制值
//若是在0~F之间的字符,则转换为相应的16进制字符,否则返回-1
char CPCSerialTestDlg::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);
}

//选择是否使用16进制显示接受的内容
void CPCSerialTestDlg::OnCheckHex() 
{
	// TODO: Add your control notification handler code here
	UpdateData (TRUE);
	m_ReceiveEdit.SetOptions (m_Address, m_Hex, m_Ascii, m_4Or8);
	m_ReceiveEdit.RedrawWindow ();//窗口重画
}

void CPCSerialTestDlg::OnCheck48() 
{
	// TODO: Add your control notification handler code here
	UpdateData (TRUE);
	m_ReceiveEdit.SetOptions (m_Address, m_Hex, m_Ascii, m_4Or8);
	m_ReceiveEdit.RedrawWindow ();
}

void CPCSerialTestDlg::OnCheckAddress() 
{
	// TODO: Add your control notification handler code here
	UpdateData (TRUE);
	m_ReceiveEdit.SetOptions (m_Address, m_Hex, m_Ascii, m_4Or8);
	m_ReceiveEdit.RedrawWindow ();
}

void CPCSerialTestDlg::OnCheckAscii() 
{
	// TODO: Add your control notification handler code here
	UpdateData (TRUE);
	m_ReceiveEdit.SetOptions (m_Address, m_Hex, m_Ascii, m_4Or8);
	m_ReceiveEdit.RedrawWindow ();
}

void CPCSerialTestDlg::OnChangeEditSend() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	CEdit* pEditSend =(CEdit*)GetDlgItem(IDC_EDIT_SEND);
	pEditSend->GetWindowText(m_strSendString);//得到发送区的数据 
}

void CPCSerialTestDlg::OnHscrollEditReceive(UINT nSBcode, UINT nPos, CScrollBar* pScrollBar) 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function to send the EM_SETEVENTMASK message to the control
	// with the ENM_SCROLL flag ORed into the lParam mask.
	
	// TODO: Add your control notification handler code here
	m_ReceiveEdit.SetBPR (m_SendSlider.GetPos ());//对滚动条位置进行更新
	m_ReceiveEdit.RedrawWindow ();

	CPCSerialTestDlg::OnHscrollEditReceive(nSBcode, nPos, pScrollBar);
}

void CPCSerialTestDlg::OnStart() 
{
	// TODO: Add your control notification handler code here
	if (m_nOutPutMode > 0)                                   //在已经进行发送模式选择后，再按情况进行发送处理
	{
		//按16进制发送
		m_strSendString="AA";
		CByteArray hexdata;  //动态Byte数组
		int len = String2Hex (m_strSendString, hexdata);//对发送的字符数据串进行转换处理，得到串长度
		m_CommCtrl.SetOutput (COleVariant (hexdata));//发送数据
	}

}

void CPCSerialTestDlg::init()
{
    OpenPort ();
	m_ReceiveEdit.SetWindowText (_T("串口已经打开"));//点击后接收区显示内容
	m_ReceiveEdit.RedrawWindow ();//窗口重绘
		m_CommCtrl.GetInput ();
	m_bReceive = !m_bReceive;
	if(m_bReceive)
		m_ReceiveEdit.SetWindowText (_T("停止接受"));
	else
		m_ReceiveEdit.SetWindowText (_T("开始接受"));
	m_ReceiveEdit.RedrawWindow ();
}

void CPCSerialTestDlg::OnRecord() 
{
	// TODO: Add your control notification handler code here
		BOOL flag=FALSE;
	CString m_Edit,str;
//对日期进行操作
	CString StrInfo;
	CTime CurrentTime=CTime::GetCurrentTime();
    StrInfo=CurrentTime.Format("%Y-%m-%d-%H:%M:%S");
//对温度值的操作，小数点后一位
	float temp=24.5;
	char temp1[4];
	int num;
	num=temp*10;
	temp1[0]=num/100+48;//存百位
	temp1[2]=46;
	temp1[3]=num%10+48;//存个位
	temp1[1]=(num-(num/100)*100)/10+48 ;//存十位

	str=StrInfo+"\t"+temp1+"\t";//几个字符串变量要全部设置为全局变量
	m_Edit="\r\n检测时间\t\t检测值\t\r\n";//为要存储的字符串
    CFile fileEditText;


	if(!fileEditText.Open("c:\\MyFile2.txt",CFile::modeCreate|CFile::modeNoTruncate|CFile::modeWrite,NULL))
   {
     MessageBox("打开文件操作失败!","信息提示",MB_OK);
   }
	else
	{
	    fileEditText.Seek(NULL,CFile::end); 
		fileEditText.Write((LPCSTR)m_Edit,m_Edit.GetLength());
		fileEditText.Write((LPCSTR)str,str.GetLength());
		fileEditText.Close();
	}
}