MFC串口编程详细教程图文并茂资源-CSDN文库

共33个文件

h：6个

cpp：5个

obj：4个

需积分: 50 137 浏览量 2015-12-25 13:38:46 上传评论 2 收藏 2.2MB ZIP 举报

在本文中，我们将深入探讨如何使用Microsoft Foundation Class (MFC)库进行串口通信。MFC是Microsoft提供的一套C++类库，用于简化Windows应用程序的开发，它封装了Windows API，提供了更高级别的抽象。在给定的教程中，“MFC串口编程详细教程图文并茂”将引导我们通过创建一个简单的上位机应用，实现与下位机或其他设备的串口通信。串口通信是计算机与外部设备之间通过串行接口进行数据交换的一种方式，常见于工业控制、数据采集等领域。MFC中的CSerialPort类为我们提供了处理串口通信的便利。我们需要包含CSerialPort类相关的头文件，通常是`#include <afxserial.h>`或`#include <afxcmn.h>`，确保MFC库已经正确链接。在MFC应用程序中，通常会有一个对话框（Dialog）类来处理用户界面，例如`CMyDlg`。在这个类中，我们可以创建一个CSerialPort对象实例，如： ```cpp class CMyDlg : public CDialog { // ... CSerialPort m_serialPort; // ... }; ``` 接着，我们需要在对话框初始化时设置串口参数。这包括波特率（Baud Rate）、数据位（Data Bits）、停止位（Stop Bits）和校验位（Parity）。以下是一个例子： ```cpp void CMyDlg::OnInitDialog() { CDialog::OnInitDialog(); // 初始化串口 m_serialPort.Create(this); // 指定对话框为父窗口 m_serialPort.SetBaudRate(CSerialPort::baud19200); // 设置波特率为19200 m_serialPort.SetDataBits(CSerialPort::data8); // 设置数据位为8 m_serialPort.SetStopBits(CSerialPort::stop1); // 设置停止位为1 m_serialPort.SetParity(CSerialPort::parityNone); // 设置无校验 } ``` 在连接串口之前，我们需要检查串口号（COM Port），例如`COM1`，`COM2`等。可以使用`Open`方法打开串口： ```cpp if (!m_serialPort.Open("COM1")) { AfxMessageBox("无法打开串口!"); return; } ``` 当串口打开后，我们可以通过`Write`方法发送数据，通过`Read`方法接收数据。例如： ```cpp // 发送数据 CString strSend = "Hello, Serial Port!"; m_serialPort.Write(strSend); // 接收数据 char buffer[256]; int nReceived = m_serialPort.Read(buffer, sizeof(buffer)); CString strReceive = buffer, nReceived); ``` 为了实时监控串口通信，我们可以在消息循环中添加定时器，定期读取串口数据。同时，可以使用MFC的控件，如`CEdit`或`CListBox`，显示接收到的数据。别忘了在程序退出前关闭串口，以释放资源： ```cpp m_serialPort.Close(); ``` 在“Searial”这个压缩包文件中，可能包含了教程的源代码、图片和其他辅助材料，这些可以帮助你更好地理解并实践上述步骤。通过跟随教程，你可以创建一个简单的MFC应用，实现串口通信功能，这对于学习嵌入式系统、物联网应用或者其他需要与硬件交互的项目来说是非常有用的。

资源推荐

资源详情

资源评论

收起资源包目录

Searial.zip （33个子文件）

Searial

Searial.ncb 49KB

ReadMe.txt 4KB

StdAfx.h 1KB

Searial.aps 35KB

Searial.dsw 564B

res

Searial.ico 1KB

Searial.rc2 399B

Searial.plg 981B

Searial.opt 48KB

Searial.rc 6KB

Searial.h 1KB

Debug

vc60.pdb 356KB

Searial.exe 116KB

Searial.pch 5.24MB

SearialDlg.obj 38KB

vc60.idb 201KB

Searial.res 3KB

Searial.obj 15KB

Searial.pdb 385KB

StdAfx.obj 103KB

mscomm1.obj 46KB

Searial.ilk 231KB

mscomm1.h 3KB

Searial.clw 1KB

resource.h 869B

mscomm1.cpp 8KB

mscomm.cpp 8KB

SearialDlg.h 2KB

Searial.dsp 4KB

StdAfx.cpp 209B

Searial.cpp 2KB

mscomm.h 3KB

SearialDlg.cpp 7KB

======================================================================== MICROSOFT FOUNDATION CLASS LIBRARY : Searial ======================================================================== AppWizard has created this Searial application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application. This file contains a summary of what you will find in each of the files that make up your Searial application. Searial.dsp This file (the project file) contains information at the project level and is used to build a single project or subproject. Other users can share the project (.dsp) file, but they should export the makefiles locally. Searial.h This is the main header file for the application. It includes other project specific headers (including Resource.h) and declares the CSearialApp application class. Searial.cpp This is the main application source file that contains the application class CSearialApp. Searial.rc This is a listing of all of the Microsoft Windows resources that the program uses. It includes the icons, bitmaps, and cursors that are stored in the RES subdirectory. This file can be directly edited in Microsoft Visual C++. Searial.clw This file contains information used by ClassWizard to edit existing classes or add new classes. ClassWizard also uses this file to store information needed to create and edit message maps and dialog data maps and to create prototype member functions. res\Searial.ico This is an icon file, which is used as the application's icon. This icon is included by the main resource file Searial.rc. res\Searial.rc2 This file contains resources that are not edited by Microsoft Visual C++. You should place all resources not editable by the resource editor in this file. ///////////////////////////////////////////////////////////////////////////// AppWizard creates one dialog class: SearialDlg.h, SearialDlg.cpp - the dialog These files contain your CSearialDlg class. This class defines the behavior of your application's main dialog. The dialog's template is in Searial.rc, which can be edited in Microsoft Visual C++. ///////////////////////////////////////////////////////////////////////////// Other standard files: StdAfx.h, StdAfx.cpp These files are used to build a precompiled header (PCH) file named Searial.pch and a precompiled types file named StdAfx.obj. Resource.h This is the standard header file, which defines new resource IDs. Microsoft Visual C++ reads and updates this file. ///////////////////////////////////////////////////////////////////////////// Other notes: AppWizard uses "TODO:" to indicate parts of the source code you should add to or customize. If your application uses MFC in a shared DLL, and your application is in a language other than the operating system's current language, you will need to copy the corresponding localized resources MFC42XXX.DLL from the Microsoft Visual C++ CD-ROM onto the system or system32 directory, and rename it to be MFCLOC.DLL. ("XXX" stands for the language abbreviation. For example, MFC42DEU.DLL contains resources translated to German.) If you don't do this, some of the UI elements of your application will remain in the language of the operating system. /////////////////////////////////////////////////////////////////////////////

评论收藏

内容反馈