Re: [Ngspice-users] FW: Ngspice & Cygwin

[Holger V. <hol...@un...>]

Todd,

ngspice version 17 from 2005 is compatible to plain original spice 3.  
You may find a very good introduction and manual at
http://newton.ex.ac.uk/teaching/CDHW/Electronics2/userguide/

If you are in the Cygwin window, and you have created the windows 
version of ngspice with
./configure --with-windows
make
make install

you just call ngspice, and the Windows version window opens up. As an 
example you may then choose the tests directory which gives a lot of 
circuit examples and can be found where the  ngspice sources are 
located, by typing
cd /cygdrive/<your source directory>/tests/general
into the spice window command line.
Typing
source mosmem.cir
will load the mos memory circuit into spice.
run
will start the simulation
display
will give you the output vectors which can be plotted.
plot v(3)
will plot one of the vectors, voltage versus time.

Many othe commands to influence plotting may be found in the user guide. 
Printing (only a very basic type of print) can be done under Windows by 
left clicking your mouse on the icon on the upper left of the plot window.

A major overhaul of ngspice is currently under way to provide PSPICE 
compatibility and many new models.

Regards

Holger




Gilbert, Todd (MPAU) schrieb:
> Holger,
>
> I added "set filetype=ascii" to "spinit", and now the binary aspect is
> eliminated - thanks.  BTW, I'm using version 17.  How would I plot the
> file?  I have many more questions about ngspice usage.  I've been
> perusing the ngspice manual, trying to adapt hspice and spice commands.
> However, there are many that I can't seem to replicate (e.g. -
> recreating an i-v curve, or setting axis parameters and intervals on a
> plot).  Is there a more comprehensive guide to using ngspice - something
> with common-usage examples?
>
> Regards,
> Todd 
>