What is GTKWave used for?

gtkwave is the waveform analyzer and is the primary tool used for visualization.

How do I open a GTKWave file?

To open a waveform with GTKWave on Linux, run gtkwave /path/to/wave. vcd. On Mac, if you’re using GTKWave, you can open the GTKWave application, and then use file → open new window to access the file.

How do I get GTKWave?

Download GTKWave and all_libs from dspia.com/gtkwave.html as Martin Thompson suggested. Then unzip everything into the same folder. The important thing to make it run under Windows is to put the executable gtkwave.exe into the subfolder all_libs/bin (this is were all the . dlls are located) or to add it to your path.

What is VCD in VLSI?

Value Change Dump (VCD) (also known less commonly as “Variable Change Dump”) is an ASCII-based format for dumpfiles generated by EDA logic simulation tools. A limitation of the format is that it is unable to record the values in memories.

How do I run Gtkwave from terminal?

In order to open GTKWave you can either type gtkwave in terminal, or by clicking on its icon: As you can imagine, there’s nothing you can do by simply opening it alone. In order to see some waveform, you must open through GTKWave some saved dumpfiles.

How do I run Gtkwave on Mac?

Instructions

1. To install gtkwave, run the following command in macOS terminal (Applications->Utilities->Terminal) sudo port install gtkwave Copy.
2. To see what files were installed by gtkwave, run: port contents gtkwave Copy.
3. To later upgrade gtkwave, run: sudo port selfupdate && sudo port upgrade gtkwave Copy.

How do I run GTKWave from terminal?

What is Dumpfile and Dumpvars in Verilog?

Verilog has a standard dump format called VCD that is used to dump the state of the design as it simulates. Use the $dumpfile directive to create a file that contains the dumped waveforms. Use the $dumpvars directive to define the scope of the dump. The example below dumps everything in and below the test module.

What is TCF in VLSI?

TCF (Toggle Count Format) is a proprietary format that provides switching information. Toggle attributes such as static probability (time for which net is high to duration) and transition rate (toggle rate to duration) are used to obtain switching information for power estimation.

What is GTKWave and how does it work?

GTKWave is an application for viewing VCD data. When opening a VCD file with GTKWave, by default, no VCD variables (signals) are displayed. It is thus useful to have an accompanying “save” file which configures various aspects of how GTKWave shows the VCD data, including which variables are displayed, variable aliases, color information, and more.

What is the Order in which signals are added in GTKWave?

The trace (), trace_bits (), group (), and blank () directives add signals to the “Signals” list which are traced in the “Waves” frame. The order in which these signal traces are added determines the order in GTKWave. Add comment line (s) to save file.

What are the different signal search modes in GTKWave?

GTKWave is designed to process a host of signals at once. As such, it is home to three different signal-searching modes, namely, signal search, hierarchy and tree. Signal search. In this mode, the search requester accepts a search string as a regular expression. If a signal is found matching the string, it is listed in Matches section.

How do I use VCD variables with GTKWave?

When opening a VCD file with GTKWave, by default, no VCD variables (signals) are displayed. It is thus useful to have an accompanying “save” file which configures various aspects of how GTKWave shows the VCD data, including which variables are displayed, variable aliases, color information, and more. Write GTKWave save files.