Hi @Stefan Schippers, I'm trying to invoke xschem to output a spice netlist from a bash script - something I have always done for LVS runs - but I seem to be getting an error which I've not seen before when I have an instance of xschem already running. How can I fix this? Cheers, Tom

tom@tom-workstation:/media/tom/Storage/Linux/repos/discrete-buck$ xschem --rcfile=$PROJECT_ROOT/xschemrc -n -q -o .  --tcl "set top_subckt 0" "sch/tb_sbmix2.sch"
setup_tcp_xschem: problems listening to TCP port: 2021
couldn't open socket: address already in use

This is just a warning. Netlist will be generated correctly. This warning is issued because xschem has tcp listening enabled. Edit your xschemrc, find this line and comment it out.

set xschem_listen_port 2021

Its's always good to disable tcp listening if you don't need to send commands to xschem from other applications. Another possibility is to run the xschem from the bash script with a different tcp port (-

-tcp 2033

)

Thank you very much, @Stefan Schippers