I have successfully tried the 'bespice' analog viewer with xschem + ngspice. This is a commercial product, however evaluation license allows to view simulation results from ngspice raw files. Anyone interested, just go to 'Simulation-> "Configure simulators and tools" and replace the

gaw

executable with '`bspwave`' after you have installed the tool. The commercial license allows to do more post processing on the signals, If anyone has such a license please let me know if some basic and useful operations are available, like grouping a set of single signals into a vector bus and other functions. The bespice viewer has digital/mixed/analog windows so it looks interesting.

I am using BeSpice Wave to visualise my sim data. I have a bus signal count[7:0] with vdd high 1.8V and vdd low = 0V. How can I plot it as a vector bus in digital form?

@Filippo I am not sure if BeSpice can handle digital bus notations. However xschem can, see the manual page and a short video.

Ok thank you very much