Re: [Ngspice-users] ngspice vs spice2g6

[Mark G. <bit...@gm...>]

Thank you very much, quite helpful.  I read the manual, but I must
need to start reading things closer, I completely missed that.  Thank
you.

-mdg

On 12/21/06, Aldo Romani <ar...@de...> wrote:
>
>  Mark Goldman wrote:
>
>  Is there a way to convince ngspice to
> output something along the latter format? It seems like it would be
> helpful for me as I explore spice and simple circuits.
>  If you look at the Spice3 manual, in chatper 5 you can read:
>  "Note that the raw output file is different from the data that Spice2
> writes to the standard output, which may also be produced by Spice3 with the
> "-b" command line option."
>  Is that what you're looking for? See the examples below.
>
>
>
>
> ---- output of commands I tried ---
> $ cat example.cir
> Example netlist
> v1 1 0 dc 15
> r1 1 0 2.2k
> r2 1 2 3.3k
> r3 2 0 150
> .end
> $ ngspice < example.cir
>
> Circuit: Example netlist
>
> Note: No ".plot", ".print", or ".fourier" lines; no simulations run
>
>  That's correct. You didn't specify any simulation to be performed.
>  Try executing:
>  ngspice example.cir
>
>  Then, after it loaded the netlist, you're presented the ngspice interactive
> prompt. Here you can enter the interactive commands.
>  Try:
>  op
>  print all   (or print v(1) v(2))
>
>  This tells ngspice to compute the operating point.
>  "Print all" outputs all the results of simulations (normally vectors)
>  You'll find other interactive commands here in section 5
> http://newton.ex.ac.uk/teaching/CDHW/Electronics2/userguide/index.html#toc
>
>  Otherwise, if you need the good ol' spice2 you should:
>  1) add simulation commands in your file.
>  e.g.:
>  Example netlist
> v1 1 0 dc 15
> r1 1 0 2.2k
> r2 1 2 3.3k
> r3 2 0 150
>
> .op
>
> .end
>
>  2) then you may safely run
>  ngspice -b example.cir
>
>
>  Hope this helps,
>  Aldo
>
>
>
>
>  $ spice < example.cir
> 1*******12/20/06 ******** spice 2g.6 3/15/83 ********18:12:21*****
> 0example netlist
> 0**** input listing temperature = 27.000 deg c
> 0***********************************************************************
>  v1 1 0 dc 15
>  r1 1 0 2.2k
>  r2 1 2 3.3k
>  r3 2 0 150
>  .end
> 1****************12/20/06 ************************ spice 2g.6 3/15/83 ******
> ******************18:12:21****************
> 0example netlist
>  0**** small signal bias solution
>  temperature = 27.000 deg c
> 0*******************************************************************************
> ******************************************
>
>  node voltage node voltage
>
>  ( 1) 15.0000 ( 2) 0.6522
>
>  voltage source currents
>
>  name current
>
>  v1 -1.117E-02
>
>  total power dissipation 1.67E-01 watts
> 0
>  job concluded
> 0 total job time 0.00
>
>
>
>
>
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