On Wed, 2003-02-12 at 12:05, Egil Kvaleberg wrote: > In terms of doing documentation and analysis of digital signals, would > any of the gEDA tools be suitable? Perhaps GTKWave?
In order to stay somewhat compatible to cadence, I write vcd files by hand and view/print them in GTKWave. So far I have had only good experience with only one problem: To have the timing intervall annotations (time scale) to fit round timings. A good thing about this method is that I can use the vcd's as input for testbenches. > > What I am thinking here is in terms of initial design amd documentation > of timing and waveforms, not viewing results of simulations. Automated > check of timing constraints is fine, but even a tool that helps in > documenting and visualizing certainly helps. You can try out http://www.timinganalyzer.net/ which is a java implementation of a timing analyzer which doesn't seem to be open source, but still a development version for free use. One thing to learn from TimingAnalyzer is that the scripting language for the program is the same as the program: Java. I did have some problem to change timing from ns to us as in the digital world today everything seem to be ns. > > Egil
