LabWindows/CVI 9.0入门指南：硬件开发与C语言编程

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"LabWindowsCVI9.0使用手册是一份为学习LabWindows CVI 9.0的用户提供的重要参考资料，适用于嵌入式硬件开发和C语言编程。此手册旨在帮助用户快速入门，提供全球技术支持和产品信息。" LabWindows/CVI是美国国家仪器公司(National Instruments, NI)推出的一款集成开发环境(IDE)，专门用于开发测试和测量应用。它基于C语言，并结合了图形化界面设计工具，使得开发者能够快速构建用户界面和复杂的测量系统。LabWindows/CVI 9.0是该系列的一个版本，它在之前版本的基础上进行了更新和优化，提供了更多的功能和性能改进。 1. **界面和项目管理**：LabWindows/CVI 9.0提供了直观的界面，用户可以创建、管理和组织工程及源代码文件。项目管理器允许用户添加、删除和组织源文件，方便代码的结构化开发。 2. **C语言编辑器**：内置的C语言编辑器具有语法高亮、自动完成和错误检查等功能，有助于提高编程效率和代码质量。 3. **图形化用户界面(GUI)设计**：用户可以通过拖放控件和布局工具创建自定义的图形化用户界面，无需深入学习复杂的图形编程。 4. **调试工具**：LabWindows/CVI 9.0包括一个强大的调试器，允许设置断点、查看变量值、单步执行代码以及进行性能分析，帮助开发者查找和修复程序中的问题。 5. **数据可视化**：支持多种数据类型的图表和控件，如波形图、条形图、直方图等，便于数据的实时显示和分析。 6. **库和函数**：LabWindows/CVI提供了丰富的函数库，涵盖信号处理、数学运算、文件I/O、通信接口等多个领域，大大简化了测量和控制应用的开发工作。 7. **兼容性与硬件集成**：LabWindows/CVI 9.0可以与NI的硬件平台，如DAQ（数据采集）设备、PXI（模块化仪器）系统和虚拟仪器模块无缝对接，实现软硬件协同开发。 8. **测试脚本支持**：通过脚本编写，用户可以自动化测试流程，实现测试序列的记录和回放，提高测试效率。 9. **文档和帮助系统**：详细的在线帮助文档和示例项目，帮助初学者快速理解和掌握LabWindows/CVI 9.0的使用。 10. **国际化和技术支持**：National Instruments提供全球范围内的技术支持和产品信息，用户可以在ni.com获取最新的软件更新、文档和社区资源。通过LabWindows/CVI 9.0使用手册，用户不仅能够学习如何使用这个强大的开发环境，还能了解到如何利用其特性来构建高效、可靠的测量和控制系统。无论你是嵌入式开发新手还是有经验的工程师，这份手册都将是你开发过程中不可或缺的参考资料。

Chapter 1 Introduction to LabWindows/CVI

Getting Started with LabWindows/CVI 1-4 ni.com

LabWindows/CVI Environment

The LabWindows/CVI environment is structured around the Workspace window, which is

shown in the following figure:

Figure 1-2. Workspace Window

The Workspace window contains the following areas:

• Project Tree—Contains the list of files in each project in the workspace. Right-click the

different elements of the Project Tree to see the list of options available for files and

folders.

• Library Tree—Contains a tree view of the functions in LabWindows/CVI libraries and

instruments. You can arrange the library functions in alphabetical order, by function

name or function panel title, or in a flat list instead of a hierarchical class structure.

Right-click the Library Tree and select Find to search for a specific function within the

tree.

• Window Confinement Region—Contains Source, User Interface Editor, Function Tree

Editor, and function panel windows.

1Project Tree

2Library Tree

3 Window Confinement Region

4 Debugging Region

5 Output Region

6 Source Code Browser

Chapter 1 Introduction to LabWindows/CVI

• Debugging Region—Contains the Variables, Watch, and Memory windows. Use these

windows to view and edit variable values and program memory during debugging.

• Output Region—Contains the Build Errors, Run-Time Errors, Source Code Control

Errors, Debug Output, and Find Results windows. These windows contain lists of errors,

output, and search matches.

• Source Code Browser—Contains browser overview information for selected files,

functions, variables, data types, and macros in a program.

Select Window»Release Window to move a window that is contained within the Window

Confinement Region, Debugging Region, Output Region, or Source Code Browser outside of

the Workspace window.

Note You cannot release the Project Tree or Library Tree from the Workspace window.

However, you can select Options»Environment and then enable the Auto hide Project

and Library Trees option to remove the Project and Library Trees from the Workspace

window when they are not in focus.

The menus and toolbar buttons available within the LabWindows/CVI Workspace window

differ depending on which window is active. To learn about what each menu item does,

right-click the menu and select Menu Help. LabWindows/CVI launches the

LabWindows/CVI Help topic that describes the items in the selected menu.

Standard Libraries

LabWindows/CVI provides a large set of built-in run-time libraries you can use to develop

applications. You can browse the Library Tree or press <Ctrl-Shift-P> in a Source window to

find a specific library function.

LabWindows/CVI includes the following standard libraries:

• User Interface Library—Functions for creating and controlling a graphical user

interface.

• Analysis Library (Base Package)/Advanced Analysis Library (Full Development

System)—Functions that operate on arrays to simulate and analyze large sets of

numerical data quickly and efficiently.

• Formatting and I/O Library—Functions for inputting and outputting data to files and

manipulating the format of data in a program.

• Utility Library—Functions that perform various operations, including using the system

timer, managing disk files, launching another executable, and using multiple threads in a

program.

• ANSI C Library—The ANSI C standard library functions.

Chapter 1 Introduction to LabWindows/CVI

Getting Started with LabWindows/CVI 1-6 ni.com

• VXI Library—Functions for communicating with and controlling VXI devices.

• GPIB/GPIB 488.2 Library—Functions for communicating with and controlling

devices on the GPIB.

• RS-232 Library—Functions for controlling multiple RS-232 ports using

interrupt-driven I/O.

• VISA Library—Functions for controlling VXI, GPIB, serial, and other types of

instruments.

• TCP Support Library—Functions that provide a platform-independent interface to the

reliable, connection-oriented, byte-stream, network communication protocol.

• UDP Support Library—Functions that provide a platform-independent interface to the

unicast, broadcast, and multicast capabilities of the User Datagram Protocol (UDP).

• Internet Library—Functions that communicate with and receive files and commands

from remote servers.

• Network Variable Library—Functions for reading and writing data to network

variables. This library supersedes the DataSocket Library and provides better

performance and scalability.

• DDE Support Library—Functions that you can use to create an interface with other

Windows applications using the Dynamic Data Exchange (DDE) standard.

• ActiveX Library—Functions that create and control ActiveX servers.

• DIAdem Connectivity Library—Functions that you can use to log test data in National

Instruments DIAdem file format (

.tdm).

• TDM Streaming Library—Functions that store and retrieve test and measurement data

using the .

tdms file format. This file format is optimized for high performance data

streaming.

• .NET Library—Functions that facilitate calling .NET assemblies.

• Real-Time Utility Library—Functions for replicating a real-time (RT) system,

configuring timing, creating and configuring trace sessions, and configuring RT targets.

Note You must install the LabWindows/CVI Real-Time Module to gain access to the

Real-Time Utility Library.

User Interface Development

Use LabWindows/CVI to develop GUIs that consist of panels, command buttons, pull-down

menus, graphs, strip charts, knobs, gauges, and many other controls and indicators. You can

use the User Interface Editor to build a GUI in LabWindows/CVI interactively. The User

Interface Editor is a drag-and-drop editor that includes tools for designing, arranging, and

customizing user interface objects.

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LabWindows/CVI 9.0入门指南：硬件开发与C语言编程

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如何使用LabWindows/CVI 9.0进行基本的硬件集成测试开发？请提供详细步骤和注意事项。

如何在LabWindows/CVI 9.0环境下实现与特定硬件设备的数据采集与交互？请提供具体的开发流程和代码示例。

CVI9.0注册机

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