BeSpice Wave is a perfect waveform viewer for ngspice as it supports it’s raw binary and ascii waveform format. Ngspice is an open source spice simulator that is directly based on the legendary Berkley spice simulator. A raw waveform file is generated if the “–rawfile=FILE” command line option is specified…
Recently we have worked with Stefan Schippers from XSchem to interface BeSpice Wave with XSchem. XSchem is an open source schematic editor. BeSpice Wave is our graphical waveform viewer. This solution allows to visualize simulation results for SPICE simulations from XSchem. If you are looking for a waveform viewer for…
When Cadence Spectre performs a simulation, it writes all simulation results to a directory. This directory can be opened for exploring the simulation results. By default these files are in PSF or PSFXL format. Here we will give a short overview on the PSF and PSFXL file structure. The most…
Analog regression testing is an essential part of analog design verification. Regression test are used to validate analog behavioral models. They also make sure that a previouslytested analog block still performs as expected after a change. Once analog regression tests have been set up, they can also facilitate other tasks:…
The algorithms used for analog waveform comparisons can be straightforward. You can simply traverse all curves in a file and find the matching curve in a reference file. Now compute the difference between 2 curves and integrate the result to obtain the absolute error. Dividing this by the norm of…
Our waveform parser makes reading PSF files from Python easy. For this purpose we have extended our parser library to a self-contained Python module. This module is implemented as a C/C++ extension to Python. As a consequence you get the full performance of a C/C++ library and the ease of…
The new BeSpice Wave version has a new page for digital and mixed-signal data. Digital curves are shown in a specialized plot window. The analog curves are shown in a classical analog plot window. This makes BeSpice Wave a full mixed-signal waveform viewer. Download our free evaluation version to test…
We will be at the Design Automation Conference in San Francisco from June 25-27. We will be present on Concept Engineering‘s booth (booth 2608) to present our plug-in to SpiceVision and StarVision. Don’t hesitate to meet us there.
We will be at the Design Automation Conference in Austin, Texas from June 19-21.We will be present on Concept Engineering‘s booth (booth 1028) to present our plug-in to SpiceVision and StarVision. Don’t hesitate to meet us there.
Many post processing algorithms and tools exist for Spice simulation results. However in many situations the existing tools are not sufficient or complicated to use. Things get even worse when you try to automate things or work on many curves from multiple simulation runs. An obvious solution is to write…
