Re: [Gnucap-devel] Qucs plugin for GNUCap

[Richard Crozier]

On 05/07/2013 08:10, Raghunandan Mudadla wrote:
> Hello I am Raghunandan. I am working on a Qucs plugin for gnucap I am 
> presently looking at the .sch files uploaded at the website but al 
> told me that Qucs uses another format to drive the simulator can u 
> please tell me the details.
>
> Thank You.

Hi Raghunandan,

You should CC the qucs and gnucap developers mailing lists (you will 
need to sign up for the mailing list here: 
https://lists.sourceforge.net/lists/listinfo/qucs-devel ) so you don't 
depend on just me to answer any questions.

Yes, the .sch files which are edited by the GUI are converted to Qucs 
netlists. The simulation backend, called qucsator, takes these netlists 
as input. You can find some examples of the Qucs netlist format in the 
pdf here:

http://qucs.sourceforge.net/docs/spicetoqucs.pdf

The following may also have some useful information:

http://qucs.sourceforge.net/docs/equations.pdf

Someone also wrote a python program to convert .sch to the netlist 
format, but I haven't tried it see:

https://sourceforge.net/p/qucs/feature-requests/21/

and possibly this (I don't know if it is the same thing)

https://github.com/zonca/python-qucs

Unfortunately there is not at present an easy way to convert a schematic 
into a netlist for viewing. The only way to do this currently is to run 
a simulation, then view the last netlist created. I am currently working 
on an option to do this, but will take a while.

Regards,
Richard


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