Windows系统下（Linux和MAC系统下请自行了解清楚）NI的各种软件、模块、工具包、驱动程序，使用NI许可证管理器来激活的，绝大部分的都可以使用NI Lincense Activator来激活，以下链接可下载：
NI序列号Serial Number生成激活工具NI License Activator，LabVIEW/VBAI/VDM/VAS等软件模块工具包破解工具不限版本
http://pcmv.cn/thread-490-1-1.html
视觉论坛的各种资源，除了视觉相关的模块有使用外，大部分的都不会使用，所以仅提供资源不能提供技术支持。资源的下载地址一般会同时提供NI官方地址和百度网盘的下载地址。某些工具包NI的地址失效或没有NI的下载地址，那视觉论坛也没有办法，只能尝试使用百度网盘地址下载；如果百度网盘的下载地址失效过期，可联系论坛客服更新。现在NI的下载服务器对我国IP地址不是很友好，有些时候速度很慢或大的资源下载很容易出错，这样会造成安装过程各种类型报错而无法安装。建议在下载完成后，对下载资源做校验和验证（NI一般会提供MD5或SHA256等），与官方或视觉论坛提供的校验和对比，一致就可以安装，如果不一致，则需要重新下载。视觉论坛早期下载的资源，那时候NI没有这么多限制，基本上都是正常下载的资源；后期下载的资源，都与NI的正确校验和对比过，保证是正确的资源才上传到百度网盘，所以百度网盘的资源基本上是正确的。校验和工具下载地址：
文件Hash计算器FHash,文件校验和验证下载文件正确性验证，MD5值计算、SHA1值计算、SHA256值计算、CRC32值计算
http://pcmv.cn/thread-26524-1-1.html
NI-845x Driver Software 21.3 Full x64Win10 32/64bitEng NI-845x驱动软件21.3完整版
NI-845x Driver Software
NI-845x支持I2C/SPI接口设备。
NI-845x是一个驱动程序软件，用于对消费电子产品和集成电路的内部集成电路(I2C)、SCSI并行接口(SPI)或SMBus通信进行配置、编程和故障排除。NI-845x还提供一个通用数字I/O API，适用于各种应用，比如I2C设备的地址配置、LED切换或选通转换以及模拟转换器芯片常见的数据收发线等。
21.3
文件大小: 591595520 字节 (564.19 MB)
修改日期: 2021-10-23 05:46
MD5: 70cebdd9b52a5eb05c67c9616cab6862
SHA1: 01fa6eaffc5f37cdc4f323385b7e8a212f2d5d0b
SHA256: 88a237d8d904c22d12e7138ca128945cbee4f69939c37b86917a779a1a2da327
CRC32: 4784084a
百度网盘与NI官方下载地址：
NI-845x Driver Software 21.3 Full x64Win10 32/64bitEng NI-845x驱动软件21.3完整版
http://pcmv.cn/thread-28020-1-1.html?fromuid=9
(出处: 机器视觉论坛)
NI-845x Driver Software 21.3 Readme
October 2021
This file contains installation instructions and compatibility information for NI-845x Driver Software 21.3.
You can find more release information on ni.com.
NI-845x Driver Software Release Notes: Known issues, bugs fixed since the last release, and other notes about this release
NI-845x Driver Software Manuals: New features, behavior changes, and other documentation
Overview
Supported Operating Systems
Application Software Support
Installation Instructions
Product Security and Critical Updates
New Features
Supported Hardware
Accessing the Help
Automating the Installation of NI Products
Using NI Software with Microsoft Windows 10
Unsupported Windows Operating Systems
Legal Information
Overview
NI-845x Driver Software is required to use the NI USB-8451 and NI USB-8452 I2C and SPI interfaces.
Supported Operating Systems
NI-845x Driver Software 21.3 supports the following operating systems:
Windows 10
Windows Server 2019
Windows Server 2016
Note Refer to Unsupported Windows Operating Systems for more information about support for Microsoft Windows OSes.
Note NI-845x Driver Software no longer supports Windows Vista/XP/7/8.x, Windows Server 2003/2008/2012, or any 32-bit Windows operating system. NI-845x Driver Software 21.3 will not install or run on an unsupported OS. You cannot deploy or distribute applications that use NI-845x Driver Software 21.3 to an unsupported OS. Additionally, after installing NI-845x Driver Software 21.3, you cannot use any installers built on this computer with any version of LabVIEW, LabWindows™/CVI™, NI TestStand™, or Measurement Studio on an unsupported OS.
Application Software Support
NI-845x Driver Software 21.3 supports the following application software versions, including service packs. If you are not using NI application software, refer to Microsoft Visual Studio Support.
| Application Software | Versions Supported by NI-845x 21.3 |
| LabVIEW | 2018, 2019, 2020, 2021 |
| LabWindows™/CVI™ | 2015 and later |
Microsoft Visual Studio Support
NI-845x supports the following Microsoft Visual Studio versions and associated programming languages.
| Programming Languages | Versions Supported by NI-845x |
| Microsoft Visual C++ | 6.0 (or later) |
Installation Instructions
Download the NI-845x Driver Software installer from ni.com/downloads. NI software includes NI Package Manager to handle the installation. Refer to the NI Package Manager Manual for more information about installing, removing, and upgrading NI software using Package Manager.
Product Security and Critical Updates
Visit ni.com/security to view and subscribe to receive security notifications about NI products. For information about critical updates from NI, refer to Available Critical and Security Updates for NI Software.
New Features
Supported Hardware
The following list details the hardware models supported in NI-845x Driver Software 21.3.
USB-8451 I2C/SPI Interface
USB-8451 (OEM) I2C/SPI Interface
USB-8452 I2C/SPI Interface
USB-8452 (OEM) I2C/SPI Interface
Accessing the Help
Refer to the NI-845x Hardware and Software Help, accessible from National Instruments»NI-845x»NI-845x Documentation»845xAPI.chm, for information about the NI-845x Driver Software.
Automating the Installation of NI Products
You can automate the installation of most NI products using command-line arguments to suppress some or all of the installer user interface and dialog boxes.
If the NI product you are installing uses Microsoft .NET 4.6.2, the .NET installer may run before any NI software installs and may require a reboot before the installation of NI software begins. To avoid a .NET reboot, install .NET 4.6.2 separately before you install NI software.
For more information about automating the installation of NI products, refer to Automating an Installer in the NI Package Manager manual.
Using NI Software with Microsoft Windows 10
Microsoft Windows 10 is the latest version of the Windows operating system and features significant changes compared to previous versions. Windows 10 introduces several new capabilities and also combines features from both Windows 7 and Windows 8. For more information about NI support for Windows 10, refer to NI Product Compatibility for Microsoft Windows 10.
Unsupported Windows Operating Systems
NI-845x Driver Software no longer supports Windows Vista/XP/7/8.x, Windows Server 2003/2008/2012, or any 32-bit Windows operating system. Versions of this product that ship after May 1, 2021, may not install or execute correctly on these operating systems. For detailed information about NI operating system support, visit
https://www.ni.com/r/win32bitsupport.
Legal Information
Copyright
© 2005–2021 National Instruments Corporation. All rights reserved.
Under the copyright laws, this publication may not be reproduced or transmitted in any form, electronic or mechanical, including photocopying, recording, storing in an information retrieval system, or translating, in whole or in part, without the prior written consent of National Instruments Corporation.
NI respects the intellectual property of others, and we ask our users to do the same. NI software is protected by copyright and other intellectual property laws. Where NI software may be used to reproduce software or other materials belonging to others, you may use NI software only to reproduce materials that you may reproduce in accordance with the terms of any applicable license or other legal restriction.
End-User License Agreements and Third-Party Legal Notices
You can find end-user license agreements (EULAs) and third-party legal notices in the following locations after installation:
Notices are located in the <National Instruments>_Legal Information and <National Instruments> directories.
EULAs are located in the <National Instruments>SharedMDFLegallicense directory.
Review <National Instruments>_Legal Information.txt for information on including legal information in installers built with NI products.
U.S. Government Restricted Rights
If you are an agency, department, or other entity of the United States Government ("Government"), the use, duplication, reproduction, release, modification, disclosure or transfer of the technical data included in this manual is governed by the Restricted Rights provisions under Federal Acquisition Regulation 52.227-14 for civilian agencies and Defense Federal Acquisition Regulation Supplement Section 252.227-7014 and 252.227-7015 for military agencies.
IVI Foundation Copyright Notice
Content from the IVI specifications reproduced with permission from the IVI Foundation.
The IVI Foundation and its member companies make no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The IVI Foundation and its member companies shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.
Trademarks
Refer to the NI Trademarks and Logo Guidelines at ni.com/trademarks for information on NI trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies.
Patents
For patents covering the NI products/technology, refer to the appropriate location: Help» Patents in your software, the patents.txt file on your media, or the NI Patent Notice at ni.com/patents.
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