#xschem @Stefan Schippers Not able to load ac waveforms in internal xschem viewer. Please suggest what could be the issue.

after the ac analysis you need to do a:

write cs_ac_tb.raw

If you want to keep the previous op analysis too add these two lines:

set appendwrite

write cs_ac_tb.raw

However if you do so loading the raw data with the menu will load the first dataset (the OP analysis). To expicitly load the AC data do this at the xshem terminal prompt:

xschem raw_read $netlist_dir/cs_ac_tb.raw ac

@Stefan Schippers AC waveform is not getting plotted. Can you please suggest what is missing.

Remove the

set appendwrite

, remove the writing of the operating point raw file, keep only the

write

after the

ac

command. Run the command from the xschem prompt:

% xschem raw_read $netlist_dir/cs_ac_tb.raw ac
Raw file data read: /home/schippes/.xschem/simulations/cs_ac_tb.raw
points=121, vars=88, datasets=1
1

If you get '1' as the return value the file is loaded. Then double click in the graph and select nodes to plot. If you don't get '1' there is some other problem.

Yes, it is working now after removing

set appendwrite

. Thanks for the help. How can xschem command prompt be accessed ?

If you run xschem from a terminal, the terminal becomes the xschem prompt. Xschem has a tcl interpreter embedded.