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Understanding the IEEE 1588 Precision Time Protocol
Measurement and automation applications often must precisely synchronize events over a widely distributed system. The IEEE 1588 precision time protocol synchronizes local clocks to a master clock to ensure that triggers, events, and timestamps in all devices use the same timebase. IEEE 1588 is optimized for well-defined distributed systems, minimal use of network bandwidth, and low processing overhead.
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A Software-Defined Platform for Communications Systems
The list of wireless and communications standards continues to grow at an unprecedented pace. Given this insatiable demand for more data bandwidth and the fact that wireless communications now outpace land communications in many countries, the challenge ahead for mobile communications becomes meeting this demand effectively.
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Accelerating Embedded System Design
To help design teams get products to market more quickly and reliably, virtual instrumentation technology is evolving to provide a comprehensive set of tools for embedded system design. The NI graphical system design platform combines LabVIEW programming with commercial off-the-shelf hardware to help you design, prototype, and deploy systems more quickly and reliably.
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FIRST Founder Dean Kamen to Deliver Keynote at NIWeek 2006
Dean Kamen, president of DEKA Research & Development Corporation and founder of FIRST, will deliver the closing keynote address to more than 2,000 attendees at NIWeek, the world's largest virtual instrumentation conference and exhibition, August 8-10, in Austin, Texas. In his speech, "Inspiring Present and Future Scientists and Engineers to Innovate," Kamen will discuss the role of science, engineering, and innovation in today's society.
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NI Seeks Certified Professionals for Teaching Opportunities
Teaching NI training courses is a business opportunity for NI certified professionals who are looking to differentiate themselves, grow along with National Instruments, and develop an alternative revenue source. Click the link below for more information, visit the Customer Education booth at NIWeek 2006, or e-mail Geoff Smith at geoff.smith@ni.com.
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Development Resources
View More than 50 Instrument Control Tutorials
Explore technical content through theory, real-world examples, and interactive audiovisual tutorials on buses, hardware, software, and architecture. From experts who want to review a specific topic to new users who need easy-to-understand documentation, this new Instrument Control Fundamentals resource can help.
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Easily Communicate with Your USB Instruments
The growth of the PC industry in the 1990s spurred an increased interest in using commercial PC buses such as USB, Ethernet, and IEEE 1394. But controlling instruments through these buses proved to be difficult because they are primarily designed to network PCs or connect PC peripherals. For easier instrument control, these buses require a software architecture that makes communication simpler and compatible with communication standards.
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The Benefits of USB SCXI Switching for Automated Test and Control Applications
You can use switch modules designed by National Instruments in a variety of applications ranging from RF to simple thermocouple multiplexing applications. They exist in two main platforms, PXI and SCXI, both of which have been pioneered by National Instruments. Learn about the advantages and use cases of each platform and see specific examples of how a USB-controlled SCXI solution compares in price and complexity with other proprietary switching solutions on the market.
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Tutorial: Analog Sampling Basics
In this technical tutorial, learn the basics of analog sampling, including bandwith, sampling rates, the Nyquist theorem, aliasing, quantization, and dithering.
Take this tutorial.
What You Are Talking About: Instruments
This week, posters in the NI discussion forums want to know how to read and save settings from instruments, how to solve data sampling issues, and more.
Go to the discussion forums.
Events
Webcast: The Data Acquisition Benefits of Multiple ADC Architectures
Explore the benefits of using multiple analog-to-digital converters (ADCs) on data acquisition hardware to increase data throughput and device performance.
View this Webcast.
Webcast: RF Continuous-Wave Measurement Applications
Learn how to use PXI-based, modular RF instruments to set up and make common RF measurements. See how to set up sophisticated stimulus-response applications as well as other measurement applications, such as measuring total harmonic distortion and intermodulation distortion, using the new RF continuous-wave signal generators, and the RF vector signal analyzer.
View this Webcast.
Webcast: Measuring the Power "Cost" of Processor Performance
Learn about a new standard metric for energy consumption, directly tied to a standard set of performance tests, that you can use to compare the performance/energy of embedded processors using NI LabVIEW software.
View this Webcast.
NI Hosts Graphical System Design Summit
NI welcomes thought leaders and technical experts from industry and academia to the Graphical System Design Summit at NIWeek 2006 August 8-9 in Austin, Texas. Presentations will demonstrate NI LabVIEW as an open graphical programming platform for designing, prototyping, and deploying embedded systems through case studies and technical "how-to" presentations by experts from companies and universities.
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Webcast: Developing with LabVIEW FPGA and Reconfigurable I/O
With LabVIEW FPGA, you can configure the FPGAs on National Instruments reconfigurable I/O hardware without the use of VHDL or other traditional FPGA design tools. You can effectively create your own I/O board and design your own triggering and decision-making logic. Learn how with new features, you can integrate VHDL code and third-party IP cores, as well as speed your loop rates to up to 40 MHz.
View this Webcast.
Support
Example Code: Programmatically Obtaining GPIB Serial Numbers
Using the function ibask (NI-488.2 Version 2.2 or later) provided by the GPIB-32.dll, it is possible to query the GPIB interface board for its serial number. This provides a way to verify the GPIB board serial number if it is necessary for logging in test applications.
Download this example.
Example Code: Implementing a Custom Digital Interface with Intelligent DAQ
This example demonstrates how to implement a custom digital interface with LabVIEW FPGA. You can use this code as a starting point for implementing any serial protocol on intelligent data acquisition (DAQ) hardware.
Download this example.
Example Code: Creating and Checking a Block Check Character
These two example VIs illustrate how to programmatically create a block check character (BCC), also known as a frame check character.
Download this example.
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