选择串口号STC串口收发通讯正常
选择串口号STC串口收发通讯正常
#include "stdafx.h"
#include "newa.h"
#include "newaDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
CNewaDlg::CNewaDlg(CWnd* pParent /*=NULL*/)
: CDialog(CNewaDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CNewaDlg)
m_count = _T("");
m_recmess = _T("");
m_sendmess = _T("");
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CNewaDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CNewaDlg)
DDX_Control(pDX, IDC_COMSELECT, m_com);
DDX_Control(pDX, IDC_SENDDATA, m_clrsend);
DDX_Control(pDX, IDC_RECDATA, m_clrrec);
DDX_Control(pDX, IDC_OPENSEND, m_OPENSEND);
DDX_Control(pDX, IDC_MSCOMM1, m_Comm);
DDX_Text(pDX, IDC_COUNT, m_count);
DDX_Text(pDX, IDC_RECMESS, m_recmess);
DDX_Text(pDX, IDC_SENDMESS, m_sendmess);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CNewaDlg, CDialog)
//{{AFX_MSG_MAP(CNewaDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_CBN_SELENDOK(IDC_COMSELECT, OnComselect)
ON_BN_CLICKED(IDC_OPENSEND, OnOpensend)
ON_BN_CLICKED(IDC_SENDDATA, OnSenddata)
ON_BN_CLICKED(IDC_RECDATA, OnRecdata)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CNewaDlg message handlers
BOOL CNewaDlg::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
m_com.SetCurSel(2);
m_Comm.SetInputMode(1); //输入方式为二进制方式
m_Comm.SetInBufferSize(1024); //设置输入缓冲区大小
m_Comm.SetOutBufferSize(1024); //设置输出缓冲区大小，波特率4800无校验，8个数据位，2个停止位
//m_Comm.SetSettings("115200,n,8,1");
m_Comm.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_Comm.SetSThreshold(1);//参数1表示当传输缓冲区完全空时将引发一个接收数据的OnComm事件
m_Comm.SetInputLen(0); //设置当前接收区数据长度为0
m_Comm.GetInput(); //先预读缓冲区以清除残留数据
if(!m_Comm.GetPortOpen())//判断串口的状态，如果是关闭状态，则打开
m_Comm.SetPortOpen(TRUE);//打开串口
return TRUE; // return TRUE unless you set the focus to a control
}
void CNewaDlg::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 CNewaDlg::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 CNewaDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
BEGIN_EVENTSINK_MAP(CNewaDlg, CDialog)
//{{AFX_EVENTSINK_MAP(CNewaDlg)
ON_EVENT(CNewaDlg, IDC_MSCOMM1, 1 /* OnComm */, OnComm, VTS_NONE)
//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()
char HexChar(char c)//检测一个字符是不是十六进制字符，若是返回相应的值，否则返回0x10；
{ if((c>='0')&&(c<='9'))
return c-0x30;
else if((c>='A')&&(c<='F'))
return c-'A'+10;
else if((c>='a')&&(c<='f'))
return c-'a'+10;
else return 0x10;
}
int Str2Hex(CString str,CByteArray &data)
{//将一个字符串作为十六进制串转化为一个字节数组，字节间可用空格分隔，返回转换后的字节数组长度，同时字节数
int t,t1;
int rlen=0,len=str.GetLength();
data.SetSize(len/2);
for(int i=0;i<len;)
{char l,h=str[i];
if(h==' ')
{i++;
continue;
}
i++;
if(i>=len)break;
l=str[i];
t=HexChar(h);
t1=HexChar(l);
if((t==16)||(t1==16))
break;
else t=t*16+t1;
i++;
data[rlen]=(char)t;
rlen++;
}
data.SetSize(rlen);
return rlen;
}
void CNewaDlg::OnComm()
{
// TODO: Add your control notification handler code here
VARIANT m_input1;
COleSafeArray m_input2;
long length,i;
BYTE data[1024];
CString str;
m_count = _T("0");
UpdateData(FALSE); //更新编辑框内容
if(m_Comm.GetCommEvent()==2)//接收缓冲区内有字符
{
m_count = _T("1");
UpdateData(FALSE); //更新编辑框内容
m_input1=m_Comm.GetInput();//读取缓冲区内的数据
m_input2=m_input1;//将VARIANT型变量转换为ColeSafeArray型变量
length=m_input2.GetOneDimSize();//确定数据长度
for(i=0;i<length;i++)
m_input2.GetElement(&i,data+i);//将数据转换为BYTE型数组
m_count = _T("2");
UpdateData(FALSE); //更新编辑框内容
for(i=0;i<length;i++)//将数组转换为Cstring型变量
{
BYTE a=* (char *)(data+i);
str.Format("%02X ",a);
m_recmess+=str;
//UpdateData(FALSE); //更新编辑框内容
m_count = _T("3");
UpdateData(FALSE); //更新编辑框内容
}
}
UpdateData(FALSE);//更新编辑框内容
}
void CNewaDlg::OnComselect()
{
// TODO: Add your control notification handler code here
int i=9600;
CString temp;
temp.Format("%d,n,8,1",i);
m_Comm.SetSettings(temp);
if(m_Comm.GetPortOpen()) //
m_Comm.SetPortOpen(FALSE); //
m_Comm.SetCommPort(m_com.GetCurSel()+1); //
}
void CNewaDlg::OnOpensend()
{
if( !m_Comm.GetPortOpen())
m_Comm.SetPortOpen(TRUE);//打开串口
UpdateData(TRUE);
CByteArray data;
int len=Str2Hex(m_sendmess,data);
m_Comm.SetOutput(COleVariant(data));//发送数据
}
void CNewaDlg::OnSenddata()
{
// TODO: Add your control notification handler code here
m_sendmess= _T("");
m_count = _T("");
UpdateData(FALSE);
}
void CNewaDlg::OnRecdata()
{
// TODO: Add your control notification handler code here
m_recmess = _T("");
UpdateData(FALSE);
}
void CNewaDlg::OnOK()
{
// TODO: Add extra validation here
m_Comm.SetPortOpen(false);//关闭串口
CDialog::OnOK();
}