Hello guys, I have a problem. Maybe I set somethings in the wrong way. How can I see the netlist? the simulation seems is never ended, because the red button is still red. Where do I wrong?

Simulation won’t “end” until the xterm window is closed. There are probably other ways to view the netlist but you can see it by selecting options->show netlist window. It should appear after you netlist

From the menu bar

Simulation-->edit Netlist

will bring up the netlist if you have vim installed. if not already installed, you can install vim editor by

sudo apt install vim-gtk

Oh, Thanks!! options->show netlist window, it works. Now, I am able to plot the results. I was using "edit netlist" does not works for me. 🤔

The red button is on because the terminal window with the ngspice prompt is not closed. After the simulation is finished you can enter commands to ngspice, like

plot vout

. If you close the window (by writing

exit

to ngspice or clicking the 'X' button on the window border) the Simulate button will return white.