你在串口中断中应该进行一次判断是发送还是接受不然可能会产生错误
建议格式为
void Com_Service(void) interrupt 4
{
if(RI)
{
RI=0;
a=SBUF;
if(a==0xAA)
{
flag=1;
}
if(a==0xFF)
{
flag=0;
}
if(TI)
{
TI=0;
}
}
//你想在接受到)ff后停止接受,不能关闭串口中断,不然你就不能接受开始指令了,只要在接收到停止指令)0xff后将发送程序关闭即可
void main ()
{
uartinit();
EA=1;
while(1)
{
if(flag==1)
{
senstring(buffer);
} //buffer为要发送的字节数组 unsigened char型
}
哈哈,选我吧!个人感觉这些语言的优缺点很难在上位机编程体现出来,你得从你开发上位机应用的角度来考虑问题比如你如果开发贴近 *** 作系统和通信控制的上位机程序,建议你用C++语言,它的优势在于强大的系统 *** 作能力和便捷灵活的通信和控制开发能力,是一种比较全能的语言,尤其是在组织大型的程序,C++有得天独厚的优势,缺点是难学,跨平台兼容性不好如果你想开发基于。net框架的程序,可以用C#,它也是功能挺强大的语言,但是比c++少了不少灵活性,很想是windows平台下的java,很像很像如果你想开发跨平台,并且是基于网络应用的程序,可以考虑用java,缺点是与 *** 作系统贴近的不够紧,因为它是运行在java虚拟机上的半解释性的语言
#include "stdafxh"
#include "CommWizardh"
#include "CommWizardDlgh"
#include "SettingDlgh"
#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;
strAboutMenuLoadString(IDS_ABOUTBOX);
if (!strAboutMenuIsEmpty())
{
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_ctrlDataTypeAddString(_T("按ASCII码"));
m_ctrlDataTypeAddString(_T("按2进制"));
m_ctrlDataTypeAddString(_T("按16进制"));
m_ctrlDataTypeSetCurSel(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;
dlgAboutDoModal();
}
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) dcGetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rectWidth() - cxIcon + 1) / 2;
int y = (rectHeight() - cyIcon + 1) / 2;
// Draw the icon
dcDrawIcon(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_ComGetInput();//先预读缓冲区以清除残留数据
bReceive = !bReceive;
if(bReceive)
m_ctrlReceiveSetWindowText(_T("停止接收"));
else
m_ctrlReceiveSetWindowText(_T("开始接收"));
}
void CCommWizardDlg::OnSend()
{
// TODO: Add your control notification handler code here
bSend = !bSend;
if(bSend)
{
m_ctrlSendSetWindowText(_T("停止发送"));
SetTimer(1,m_nTime,NULL);//时间为1000毫秒
}
else
{
m_ctrlSendSetWindowText(_T("自动发送"));
KillTimer(1); //取消定时
}
}
void CCommWizardDlg::OnSettings()
{
// TODO: Add your control notification handler code here
CSettingDlg setDlg;
setDlgnPort = m_nPort;
setDlgnTime = m_nTime;
setDlgstrSettings = m_strSettings;
setDlgstrSendString = m_strSendString;
if(setDlgDoModal() == IDOK)
{
m_nPort = setDlgnPort;
m_nTime = setDlgnTime;
m_strSettings = setDlgstrSettings;
m_strSendString = setDlgstrSendString;
}
OpenPort();
}
void CCommWizardDlg::OnSelchangeType()
{
// TODO: Add your control notification handler code here
m_nInputMode = m_ctrlDataTypeGetCurSel();
}
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_ComGetCommEvent()==2) //事件值为2表示接收缓冲区内有字符
{
variant_inp = m_ComGetInput(); //读缓冲区
safearray_inp = variant_inp; //VARIANT型变量转换为ColeSafeArray型变量
len=safearray_inpGetOneDimSize(); //得到有效数据长度
for(k=0;k<len;k++)
safearray_inpGetElement(&k,rxdata+k);//转换为BYTE型数组
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_nInputMode == 2)
strtempFormat("%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
strtempFormat("%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_ComGetPortOpen())
m_ComSetPortOpen(FALSE);
m_ComSetCommPort(m_nPort); //选择com1
if( !m_ComGetPortOpen())
m_ComSetPortOpen(TRUE);//打开串口
else
AfxMessageBox("cannot open serial port");
m_ComSetSettings(m_strSettings); //波特率9600,无校验,8个数据位,1个停止位
m_ComSetRThreshold(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_ComSetInputMode(1);
m_ComSetInputLen(0); //设置当前接收区数据长度为0
m_ComGetInput();//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_ComSetOutput(COleVariant(hexdata));
}
else
m_ComSetOutput(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=strGetLength();
senddataSetSize(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=hexdata16+lowhexdata;
i++;
senddata[hexdatalen]=(char)hexdata;
hexdatalen++;
}
senddataSetSize(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);
}
这俩语言,都没有太多编程经验的话,我感觉其实都差不多:
C#稍微简单点,如果你的上位机程序需要比较精美复杂的界面的话,用C#容易实现些。但是考虑到你说写的是上位机程序,可能需要与单片机之类的连接,此时如果要对底层有比较精微的控制,用C++可能更合适一些。
再有就是平台问题,C#只适合于上位机windows平台。C++都可以。
所以还是要看具体需求。写个简单的哪种语言都差不多吧。不清楚楼主所说的上位机教程是什么,是指的普通桌面编程的教程吗,这个网上资料很多的
有点区别
一般上位机是以应用为主,调用现有的驱动接口程序,制作需要的应用程序,也可以把驱动和上位机合起来。
我个人觉得尽量细分成 上位机、驱动程序、下位机 这三部分。不是所有写上位机的人都会写驱动,可以直接调用类似的驱动。
以上就是关于求一个 实现上位机上位机控制单片机串口发送和停止发送数据的程序。 要求串口收到串口助手发送来的0xAA 后全部的内容,包括:求一个 实现上位机上位机控制单片机串口发送和停止发送数据的程序。 要求串口收到串口助手发送来的0xAA 后、单片机嵌入式的上位机编程用哪个比较好C++、C#、JAVA、DELPHI、VB各个程序的优势、缺点在哪里、谁能给我一个上位机控制下位机的串口通信程序(C语言编写吧)等相关内容解答,如果想了解更多相关内容,可以关注我们,你们的支持是我们更新的动力!
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