//-----头文件
#include<reg52.h>
//-----定义全局变量
unsigned
char
temp
/***************************************************
**
函数名称:
uart_init
**
功能描述:
串口初始化函数
**
输
入：无
**
输
出:
无
**
说
明:
无
****************************************************/
void
uart_init(void)
{
scon
=
0x50
//-----scon:
模式
1,
8-bit
uart,
使能接收
tmod
|=
0x20
//-----tmod:
timer
1,
mode
2,
8-bit
重装
th1
=
0xfd
//-----th1:
重装值
9600
波特率
晶振
11.0592mhz
tr1
=
1
//-----tr1:
timer
1
打开
es
=
1
//-----打开串口中断
ea
=
1
//-----打开总中断
}
/***************************************************
**
函数名称:
sendbyte
**
功能描述:
发送字节函数
**
输
入：无
**
输
出:
无
**
说
明:
无
****************************************************/
void
sendbyte(unsigned
char
dat)
{
sbuf
=
dat
while(!ti)
ti
=
0
}
/***************************************************
**
函数名称:
sendstr
**
功能描述:
发送字符串函数
**
输
入：无
**
输
出:
无
**
说
明:
无
****************************************************/
void
sendstr(unsigned
char
*s)
{
while(*s!='\0')
{
sendbyte(*s)
s++
}
}
/***************************************************
**
函数名称:
main
**
功能描述:
主函数
**
输
入：无
**
输
出:
无
**
说
明:
无
****************************************************/
void
main
(void)
{
uart_init()
//-----串口初始化
while(1)
{
if(temp=='h'&&'i')
{
temp=0
sendstr("hello")
}
}
}
/***************************************************
**
函数名称:
uart_ser
**
功能描述:
串口中断服务子函数
**
输
入：无
**
输
出:
无
**
说
明:
无
****************************************************/
void
uart_ser
(void)
interrupt
4
//-----串行中断服务程序
{
if(ri)
//-----判断是接收中断产生
{
ri=0
//-----标志位清零
temp=sbuf
//-----读入缓冲区的值
}
}
#include "stdafx.h"#include "CommWizard.h"
#include "CommWizardDlg.h"
#include "SettingDlg.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()
/////////////////////////////////////////////////////////////////////////////
// CCommWizardDlg dialog
CCommWizardDlg::CCommWizardDlg(CWnd* pParent /*=NULL*/)
: CDialog(CCommWizardDlg::IDD, pParent)
{
bSend = FALSE
bReceive = FALSE
m_nPort = 1
m_strSettings = _T("9600,n,8,1")
m_strSendString = _T("")
m_nTime = 1000
m_nInputMode = 1
//{{AFX_DATA_INIT(CCommWizardDlg)
m_strReceive = _T("")
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME)
}
void CCommWizardDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX)
//{{AFX_DATA_MAP(CCommWizardDlg)
DDX_Control(pDX, IDC_RECEIVE, m_ctrlReceive)
DDX_Control(pDX, IDC_SEND, m_ctrlSend)
DDX_Control(pDX, IDC_TYPE, m_ctrlDataType)
DDX_Text(pDX, IDC_EDIT_RECEIVE, m_strReceive)
DDX_Control(pDX, IDC_COMMCTRL, m_Com)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CCommWizardDlg, CDialog)
//{{AFX_MSG_MAP(CCommWizardDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_RECEIVE, OnReceive)
ON_BN_CLICKED(IDC_SEND, OnSend)
ON_BN_CLICKED(IDC_SETTINGS, OnSettings)
ON_CBN_SELCHANGE(IDC_TYPE, OnSelchangeType)
ON_BN_CLICKED(IDC_CLEAR, OnClear)
ON_BN_CLICKED(IDC_MANUALSEND, OnManualsend)
ON_WM_TIMER()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CCommWizardDlg message handlers
BOOL CCommWizardDlg::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_ctrlDataType.AddString(_T("按ASCII码"))
m_ctrlDataType.AddString(_T("按2进制"))
m_ctrlDataType.AddString(_T("按16进制"))
m_ctrlDataType.SetCurSel(m_nInputMode)
return TRUE // return TRUE unless you set the focus to a control
}
void CCommWizardDlg::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 CCommWizardDlg::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 CCommWizardDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon
}
void CCommWizardDlg::OnReceive()
{
// TODO: Add your control notification handler code here
m_Com.GetInput()//先预读缓冲区以清除残留数据
bReceive = !bReceive
if(bReceive)
m_ctrlReceive.SetWindowText(_T("停止接收"))
else
m_ctrlReceive.SetWindowText(_T("开始接收"))
}
void CCommWizardDlg::OnSend()
{
// TODO: Add your control notification handler code here
bSend = !bSend
if(bSend)
{
m_ctrlSend.SetWindowText(_T("停止发送"))
SetTimer(1,m_nTime,NULL)//时间为1000毫秒
}
else
{
m_ctrlSend.SetWindowText(_T("自动发送"))
KillTimer(1) //取消定时
}
}
void CCommWizardDlg::OnSettings()
{
// TODO: Add your control notification handler code here
CSettingDlg setDlg
setDlg.nPort = m_nPort
setDlg.nTime = m_nTime
setDlg.strSettings = m_strSettings
setDlg.strSendString = m_strSendString
if(setDlg.DoModal() == IDOK)
{
m_nPort = setDlg.nPort
m_nTime = setDlg.nTime
m_strSettings = setDlg.strSettings
m_strSendString = setDlg.strSendString
}
OpenPort()
}
void CCommWizardDlg::OnSelchangeType()
{
// TODO: Add your control notification handler code here
m_nInputMode = m_ctrlDataType.GetCurSel()
}
void CCommWizardDlg::OnClear()
{
// TODO: Add your control notification handler code here
m_strReceive = _T("")
}
BEGIN_EVENTSINK_MAP(CCommWizardDlg, CDialog)
//{{AFX_EVENTSINK_MAP(CCommWizardDlg)
ON_EVENT(CCommWizardDlg, IDC_COMMCTRL, 1 /* OnComm */, OnOnCommCommctrl, VTS_NONE)
//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()
void CCommWizardDlg::OnOnCommCommctrl()
{
// 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
if(bReceive)
{
if(m_Com.GetCommEvent()==2) //事件值为2表示接收缓冲区内有字符
{
variant_inp = m_Com.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
for(k=0k<lenk++)
safearray_inp.GetElement(&k,rxdata+k)//转换为BYTE型数组
for(k=0k<lenk++) //将数组转换为Cstring型变量
{
BYTE bt=*(char*)(rxdata+k) //字符型
if(m_nInputMode == 2)
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_strReceive = m_strReceive + strtemp //加入接收编辑框对应字符串
}
m_strReceive += "\r\n"
}
}
UpdateData(FALSE) //更新编辑框内容
}
void CCommWizardDlg::OpenPort()
{
if(m_Com.GetPortOpen())
m_Com.SetPortOpen(FALSE)
m_Com.SetCommPort(m_nPort) //选择com1
if( !m_Com.GetPortOpen())
m_Com.SetPortOpen(TRUE)//打开串口
else
AfxMessageBox("cannot open serial port")
m_Com.SetSettings(m_strSettings)//波特率9600，无校验，8个数据位，1个停止位
m_Com.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_Com.SetInputMode(1)
m_Com.SetInputLen(0) //设置当前接收区数据长度为0
m_Com.GetInput()//先预读缓冲区以清除残留数据
}
void CCommWizardDlg::OnManualsend()
{
// TODO: Add your control notification handler code here
CString strSend
if(m_nInputMode >1)
{
CByteArray hexdata
int len=String2Hex(m_strSendString ,hexdata)
m_Com.SetOutput(COleVariant(hexdata))
}
else
m_Com.SetOutput(COleVariant(m_strSendString))//发送数据
}
void CCommWizardDlg::OnTimer(UINT nIDEvent)
{
// TODO: Add your message handler code here and/or call default
OnManualsend()
CDialog::OnTimer(nIDEvent)
}
int CCommWizardDlg::String2Hex(CString str, CByteArray &senddata)
{
int hexdata,lowhexdata
int hexdatalen=0
int len=str.GetLength()
senddata.SetSize(len/2)
for(int i=0i<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
}
//这是一个将字符转换为相应的十六进制值的函数
//功能：若是在0-F之间的字符，则转换为相应的十六进制字符，否则返回-1
char CCommWizardDlg::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)
}
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