02 Signal Basics

This chapter describes some basic principles of how signals are represented in impulse. These are not necessary for the use of impulse, but convey a better understanding.

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04 Plots and Cursors

The plot area contains three elements: an axis, the configured plots and cursors. Cursors are part of a view, like plots and folders, but they are not visible in the view configuration hierarchy. So, if you change the view, you also change to a different set of cursors.

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05 Domains and Axes

impulse can display waveforms using multiple domains (e.g., time and frequency) in one view. If your signals are using the same domain, it allows you to display them on multiple axes. 

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06 Ports

As soon as your signals are not bound to a file, but streamed in from different sources like processes, sockets, pipe and drivers, ports are the means by which impulse handles those signals.

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07 Tables

 In addition to the viewer and editor, there is a set of additional tabular presentation UIs in impulse. These tables allow to output the signal content using different forms.

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08 Marker

The eclipse platform supports different markers such as bookmarks, tasks, problems and errors. Based on these mechanisms, impulse allows the user to add annotations, bookmarks and tasks to any signal at a given position.

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09 Preferences

impulse’s preferences are stored within the eclipse preference store. If you open the preferences dialogue, you can manage all the relevant settings. There are preferences pages for views, serializers, ports, templates, .... Settings can be easily imported or exported using the Wallet Editor.

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10 The Signal Script Production

The Signal Scripts production allows the users to analyze and interpret signals in many ways. Combine signals using mathematical operations, generate references, implement protocol parsers, extract statistical informations or search for conflicts automatically.

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12 Searching

The Find dialogue helps you to find signal patterns. It behaves like the standard find dialogue of the text editors. You type in a find expression, select if you want to search forwards or reverse, with or without wrapping and then click find. The active cursor will be placed at the found position.

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13 Working with Charts

Charts can be used to visualize signals and signal-related information. Charts can be extended and configured in many ways. You can define your own charts or integrate existing chart tools.

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14 Templates

Templates simplify the re-use of configuration elements. A template may contain simple defaults, such that all float signals shall be painted red, but they can also contain a rich set of elements containing multiple scripts and folders.

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16 Launcher Integration

An eclipse launch configuration is a description of how to launch a program. The program itself may be a Java program, another Eclipse instance in the form of a runtime workbench, a C program, or something else. The impulse launch integration enables users to bind an impulse port to a launch configuration.

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A03 recTr Trace Record Format

The Impulse trace format (*.recTr) is an open format targeting typical embedded system use-cases. The trace data is packed into a binary format. To generate a trace, you can use open-source multi-language emitters (currently C).

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A04 recJs Script Record Format

RecJs files are wave files build on scripts. You might prepare signal references, define test vectors for your design or script a custom reader. Everything is based on the same simple api that is used in signal scripts and serializers.

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A09 Scripted Reader

If you want to read signal and trace data from a TCP, files, serial, or any other port input and with a format that is unknown to impulse , a scripted reader can help you to get on track.

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