serialporttest2view.cpp

一个简单的串口通信程序

// SerialPortTest2View.cpp : implementation of the CSerialPortTest2View class
//

#include "stdafx.h"
#include "SerialPortTest2.h"

#include "SerialPortTest2Doc.h"
#include "SerialPortTest2View.h"

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

/////////////////////////////////////////////////////////////////////////////
// CSerialPortTest2View

IMPLEMENT_DYNCREATE(CSerialPortTest2View, CView)

BEGIN_MESSAGE_MAP(CSerialPortTest2View, CView)
	//{{AFX_MSG_MAP(CSerialPortTest2View)
	ON_WM_TIMER()
	ON_MESSAGE(WM_COMM_RXCHAR,OnComm)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSerialPortTest2View construction/destruction

CSerialPortTest2View::CSerialPortTest2View()
{
	// TODO: add construction code here
	m_bCOM1Opened=FALSE;     //COM1初始状态没有打开
	m_bCOM2Opened=FALSE;     //COM2初始状态没有打开

}

CSerialPortTest2View::~CSerialPortTest2View()
{
}

BOOL CSerialPortTest2View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CSerialPortTest2View drawing

void CSerialPortTest2View::OnDraw(CDC* pDC)
{
	CSerialPortTest2Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CSerialPortTest2View printing

BOOL CSerialPortTest2View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CSerialPortTest2View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CSerialPortTest2View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CSerialPortTest2View diagnostics

#ifdef _DEBUG
void CSerialPortTest2View::AssertValid() const
{
	CView::AssertValid();
}

void CSerialPortTest2View::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CSerialPortTest2Doc* CSerialPortTest2View::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CSerialPortTest2Doc)));
	return (CSerialPortTest2Doc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CSerialPortTest2View message handlers

void CSerialPortTest2View::OnInitialUpdate() 
{
	CView::OnInitialUpdate();
	
	// TODO: Add your specialized code here and/or call the base class
	for (int i=0;i<2;i++)
	{
		if (m_SerialPort[i].InitPort(this,i+2,9600,'N',8,1,EV_RXFLAG|EV_RXCHAR,512))
		{
			m_SerialPort[i].StartMonitoring();   //启动串口监视器线程
			if (i==0)           //如果COM1打开成功，则设置定时器
			{
				SetTimer(1,1000,NULL);       //设置定时器，1秒后发送数据
				m_bCOM1Opened=TRUE;          //COM1打开
			}
			else
				m_bCOM2Opened=TRUE;
		}
		else
		{
			CString strtemp;
			strtemp.Format("COM%d 没有发现，或被其他设备占用",i+2);
			AfxMessageBox(strtemp);
		}
	}                                                     
}

void CSerialPortTest2View::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	static UINT unCount=0;    //定义静态变量
	if (m_bCOM1Opened)        //检查COM1是否成功打开  
	{
		unCount++;
		CString strtemp;
		strtemp.Format("$%06d*",unCount);
		m_SerialPort[0].WriteToPort((LPCTSTR)strtemp);  //COM1发送数据
		CDC* pDC=GetDC();  //准备数据显示
		pDC->TextOut(10,100,"COM2发送："+strtemp);  //显示接收到的数据
		ReleaseDC(pDC);
	}
	CView::OnTimer(nIDEvent);
}

LONG CSerialPortTest2View::OnComm(WPARAM ch,LPARAM port)
{
	if (port==3)   //COM2接收到数据
	{
		switch(ch)
		{
		case '$':
			m_strRXDataCOM2=(char)ch;
			break;
		case '*':
			{
				m_strRXDataCOM2+=(char)ch;
				CDC* pDC=GetDC();       //准备数据显示
			  //显示接收到的数据
				pDC->TextOut(10,150,"COM3接收到"+m_strRXDataCOM2);
				ReleaseDC(pDC);
				m_strRXDataCOM2.Replace('$','Y');
				//COM2发送应答信息
				m_SerialPort[1].WriteToPort((LPCTSTR)m_strRXDataCOM2);
			}
			break;
		default:
			m_strRXDataCOM2+=(char)ch;
			break;
		}
	}
	if (port==2)
	{
		switch(ch)
		{
		case 'Y':
			m_strRXDataCOM1=(char)ch;
			break;
		case '*':
			{
				m_strRXDataCOM1+=(char)ch;
				CDC* pDC=GetDC();    //准备数据显示
				//显示接收到的数据
				pDC->TextOut(200,100,"COM2接收到："+m_strRXDataCOM1);
				ReleaseDC(pDC);
			}
			break;
		default:
			m_strRXDataCOM1+=(char)ch;
			break;
		}
	}
	return 0;
}