open-source-silicon.dev

<@U0172QZ342D>, <@U01819B63HP> I have installed ngspice-42. I am trying to run digital simulation on ngpice I am getting below error on running:
ngspice vlnggen top.v

Error:
sh: 1: verilator: not found
Current directory: /home/deepak/workspace/SRAM_MPW7_testing/Testings/digital_openlane run/src/top_obj_dir
com_fopen() cannot open Vlng.h: No such file or directory
ngspice-42 done

I tried reinstalling ngspice-42 to verify if this file is missed during installation , it is showing same error still.

I think ngspice uses the verilog simulator called "verilator" to handle simulation of verilog code. So you may try to install verilator. However I am not very expert in verilog mixed mode simulation with ngspice.

yes it uses verilator. Let me check once installing that as well.

After installing verilator it worked....Now getting errors in my code....that i will look up.

Another question ...in below command :
ngspice vlnggen top.v
-&gt; Can we use  verilog netlist obtained after openlane run intsead of initial verilog??

<@U02NJ79GX0D> I am sorry I have not tried this, so I can not help here :disappointed: Try to post the question to <#C016HUV935L|analog-design>.