ASCII files represent standard text files that can be opened by all common spreadsheet and word processing applications.You can request repair, schedule calibration, or get technical support.This document starts by exploring the common features of a logic analyzer used in viewing and analyzing digital data.The article then dives into how the NI Digital Waveform Editor can be used in conjunction with National Instruments products, such as the NI Logic Analyzer solution, to view and analyze digital waveforms in a graphical and interactive environment.
In order to capture the necessary data, logic analyzers provide the ability to trigger the start of an acquisition, whether it be through a software command or complex sequential pattern matching, as well as the ability to probe or connect to the digital system under test. ![]() At the very minimum, a logic analyzers user interface includes the ability to simultaneously view and analyze multiple channels of digital data so that the state of the digital system can be viewed and the timing relationships between signals determined. The display on most logic analyzers allow users to pan through the acquired data and mark sections of the data for easy location later. Recent PC-based logic analyzers allow engineers to use the familiar operating environment of their desktop computer to acquire, analyze, and present their digital data. National Instruments offers a Logic Analyzer and Pattern Generator solution that combines interactive software with modular hardware. By leveraging the performance and flexibility of the standard PC, users can store an almost unlimited amount of acquired data to be analyzed by custom algorithms or quickly viewed with software packages, such as the NI Digital Waveform Editor. This paper takes a look at how to get started with the NI Digital Waveform Editor and some of its key features that can be used to view and analyze digital signals. While usually used for creating new digital waveforms with automatic fill patterns, with the NI Digital Waveform Editor you can leverage the powerful, interactive environment to display and analyze signals after acquisition. With features such as searching, bookmarks and cursors, the NI Digital Waveform Editor offers a simple but effective interface for managing digital data. Furthermore, you can link the design and test of your digital device together by importing existing test vectors in ASCII or Value Change Dump (.VCD) file formats from popular spreadsheet and digital simulation packages. This allows you to use a single environment for viewing data not only acquired from your device under test but also from the simulation phases of your product. View Vcd Waveform Full Power OfThis PC-Based logic analyzer solution allows the full power of the computer to be used to perform complex analysis, data logging, and report generation. SignalExpress is a software environment that allows you to interactively create analysis and acquisition programs without requiring any knowledge of programming. Once data is acquired with SignalExpress, you can view, analyze, and edit your saved digital data in the NI Digital Waveform Editor by navigating to Tools Digital Waveform Editor. Once the NI Digital Waveform Editor screen has launched, you can uses the features discussed below to open and analyze your data. To learn more about the NI 100 MHz Logic AnalyzerPattern Generator Solution, visit the Getting Started Guide and Product Page linked below. The NI Digital Waveform Editor can open Hierarchical Waveform Storage (HWS), ASCII, and VCD files. The HWS file format is an open standard used for storing scientific and engineering data. It is capable of saving device configuration settings as well as multiple channels of waveform data, measurements, and associated header information. HWS also offers compression options, making this format the best choice for very large or multiple data records.
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