@Stefan Schippers When I create a symbol so that I can include an extracted netlist, how can I match the port order to that of the extracted netlist?

@Harald Pretl There’s a discussion here about setting the order of ports in the extracted netlist. https://open-source-silicon.slack.com/archives/C016HUV935L/p1677358505708119?thread_ts=1677353770.126889&cid=C016HUV935L

Thanks, good pointer! I have now matched the

xschem

symbol to the extracted netlist port order using the

sim_pinnumber

property.

Good you got it right!. Anyway the tutorial page is here

@Stefan Schippers is there a way to grab the pinlist from the (included) (extracted) spice netlist? There is a small risk that after the next extraction the pin order changes, and this goes undetected. An automatism would be much safer.

@Stefan Schippers the tutorial “here” link you posted above points to a local file:// URL. Is there one on the net?

Sorry, I have corrected above post. The link is: https://xschem.sourceforge.io/stefan/xschem_man/tutorial_use_existing_subckt.html

@Stefan Schippers What would work (maybe I implement this in the future): A script given the

xschem

symbol file and the extracted netlist could parse the extracted netlist, and based on the pinorder in the extracted spice netlist adjust the

sim_pinnumber

property of an already existing (handdrawn) symbol. While doing it can check for matching of the pins between these two entities (spice and sym) and report and error. An autocreation of symbol from spice netlist I think is not that important, as usually one starts with a symbol plus something behind for first simulation, and later replace it by an extracted netlist.