Re: [Help-gnucap] testing verilog netlist input

[John Griessen]

I've done a small spice netlist along with two other verilog netlists as a test.
It uses a pulse, but the simulation output stays zeros for all times.

The very last step entering an instance seems to not have the parameters of the 
pulse defined...even though they show in a list
in the vpulse module.  Here is everything I did, and the  gnucap-verilog>list 
results:



gnucap-verilog>clear
gnucap-verilog>spice
gnucap-spice>.get ./vpulse.ckt
'pulse volt source
gnucap-spice>.verilog
gnucap-verilog>include verilog_io.net
gnucap-verilog>resistor #(.r(1500) ) R3 ( .n(out), .p(0 ));
gnucap-verilog>verilog_io #(.footprint(none) ) U2 ( .GND(0 ), .IN(in), 
.OUT(out))
gnucap-verilog>vpulse V1 (.p(in),.n(0));
gnucap-verilog>list
module vpulse (p,n);
vsource #(pulse.iv( 0.), .pv( 1.), .delay( 1.u), .rise( 1.n), .fall( 1.n), 
.width( 5.u), .period(NA( Inf))) V2 (.p(p),.n(n));
endmodule // vpulse

module verilog_io (GND,OUT,IN);
capacitor #(.c( 1.25u)) C1 (.p(B),.n(GND));
inductor #(.l( 0.001)) L1 (.p(B),.n(OUT));
resistor #(.r( 1.K)) R1 (.p(IN),.n(B));
endmodule // verilog_io

resistor #(.r( 1.5K)) R3 (.p(0),.n(out));
verilog_io #(.footprint(none)) U2 (.GND(0),.OUT(out),.IN(in));
vpulse #() V1 (.p(in),.n(0));
gnucap-verilog>
====================run a sim==============================
print tran v(in out)
tran 0 10 .001 trace all >./out.gnucap
this results in
       #Time       v(in)      v(out)
 0.         0.         0.
 10.E-6     0.         0.

and,
gnucap-verilog>tran 0 10 .0001 trace all >./out.gnucap
gives some transient values changing.
#Time       v(in)      v(out)
 0.         0.         0.
 1.E-6      424.E-15   0.
 1.001E-6   1.         299.8E-12
 1.002E-6   1.         1.4984E-9
 1.003E-6   1.         3.8944E-9
 1.004E-6   1.         7.4859E-9

So, I have data going in from netlists and a simulation finally.

gnucap-verilog>param  shows nothing.

How would I change just the pulse parameters interactively?

John Griessen