Hi all, I am trying to run testbench for LDO with DC analysis and sweeping one voltage to get the VTC but i get some error and not able to proceed? How do i proceed?

Please send the

Jaga_LDO_VC_LY_tb1.spice

file generated by xschem in the simulation directory (usually ~/.xschem/simulations) and also the

Jaga_LDO_VC_LY_xsch.spice

file that you are including into the testbench.

Hello Stefan.. I have attached both of them.

@Antaryami Panigrahi 2 things to fix: 1. You should not include

Jaga_LDO_VC_LY_xsch.spice

, the

Jaga_LDO_VC_LY

subcircuit is already present in the testbench. 2. create a

.spiceinit

file in the directory where simulation is done (usually

~/.xschem/simulations

) with following content:

set ngbehavior=hsa
set ng_nomodcheck

The above file is needed to set ngspice in HSPICE compatibility, needed for skywater and other open source pdks. With these changes simulation runs fine.

Thank you so much @Stefan Schippers, 😀. It almost crushed my head. It's working.😁. Why the other SPICE gave me a tough time ?