Re: Assertion faileed

> If I understand correctly... the simulation does not show that the
> output voltage does not reach zero before .0012s. The plot is a bit
> misleading here, look at the data points (few).

Right, I expected the output voltage to reach zero when the input voltage r=
eached about 0.6-0.7 V (about 20 us before the input pulse reached zero)  I=
 originally used 1000 points for the transient simulation, which gives a re=
solution of 1.4 us.  I just tried increasing to 5000 points, but it didn't =
make any noticeable difference in either plot.

> The Gnucsator transient command wrapper ignores most arguments, and runs
> with automatic time steps. There was no need to change this yet.

That explains another difference between the qucsator and gnucsator simulat=
ions, namely with qucsator, the input pulse reaches zero precisely at the s=
pecified T2 value, while with gnucsator, it reaches zero 0.2 ms later; this=
 is more like ngspice, which specifies the pulse width rather than T1 and T=
2 values.

> Some simulator options are global, and can be set in the .rc file or at t=
he
> top of the input file, by hand. ".options trtol=3D1" etc. But fixed time
> stepping is an argument to the transient command.

Thanks -- that's good to know.  I'll also try your suggestion to capture th=
e exact time when the signal reaches zero.