I'm looking for a simple example which contains a spice subcircuit and this subcircuit is referenced from a VerilogA model. My question is: how this spice file read from the VerilogA model, through an include file? Or there is no include file and the spice model found in an other way? Or there is a .lib command in the VerilogA model file?

From the Verilog-AMS Language Reference Manual

Code:

`include "disciplines.va"
`include "constants.va"

module diffPair (c1, b1, e, b2, c2);
 electrical c1, b1, e, b2, c2;

 vertNPN Q1 (c1, b1, e);
 vertNPN Q2 (.c(c2), .b(b2), .e(e));
endmodule
 

Where vertNPN is a spice model line. I assume this code is can not compile. How to fix this code?

It means in the VerilogA source file not needed to reference any Spice library?