Re: [Help-gnucap] spice models

[asomers]

In your schematic, you need to rename your LM317 from U1 to X1 .
Spice expects that all subckt components' reference designators will
start with 'X'.  I think there is a gschem attribute which will rename
the part from U... to X... during spice netlist generation, but I
don't remember what attribute that is.  The easiest thing is to just
change the name in the schematic.

On Tue, Jul 6, 2010 at 4:46 PM, Mogliii <address@hidden> wrote:
> OK, I got a bit closer to my aim.
>
> I found this very helpful page: http://www.brorson.com/gEDA/SPICE/t1.html
>
> Following this I made the following schematic:
> http://users.ecs.soton.ac.uk/mets09r/test3.sch
>
> I copied the spice model I found here [1] into a subckt file
> http://users.ecs.soton.ac.uk/mets09r/LM317.subckt
> and gave the LM317 the following attributes:
>    device = LM317            (apparently not necessary)
>    refdes = U1
>    value = LM317             (exactly the same as the .SUBCKT LM317 1 2 3 in
> spice file)
>    file = LM317.subckt     (file with spice model is located in same
> directory as sch file)
>
> Now when I load it in gspiceui the netlist finds the spicefile and netlists
> all. But when I do the simulation I get the following console output:
>
>    Gnucap 0.35
>    The Gnu Circuit Analysis Package
>    Never trust any version less than 1.0
>    Copyright 1982-2006, Albert Davis
>    Gnucap comes with ABSOLUTELY NO WARRANTY
>    This is free software, and you are welcome
>    to redistribute it under certain conditions
>    according to the GNU General Public License.
>    See the file "COPYING" for details.
>    **************************************************************
>    U1 3 2 1 LM317
>                   ^ ? need 1 more nodes
>    @@#
>    @@@incomplete:d_logic.cc:73:parse_spice
>    U1 3 2 1 LM317
>                   ^ ? need more nodes
>    U1 3 2 1 LM317
>                   ^ ? need and,nand,or,nor,xor,xnor,inv
>    J1 1 3 4 JN
>    ^ ? illegal type
>    .MODEL JN NJF(BETA=1E-4 VTO=-7)
>                 ^ ? not implemented
>    model  is not a logic family (LOGIC)
>
>
> The J1 seems to be the problem?
>
> Now my questions:
>    1) Do I have to rewrite the spice model to work with gnucap?
>    2) gEDA includes the LM317 as symbol, but apparently no spice model? Is
> this correct?
>
>
> I appreciate your help in advance
>
>
> [1]
> http://groups.google.com/group/sci.electronics.cad/browse_frm/thread/fbf84f10d86a4d23/e66bf3354362d541?q=LM317+spice+model&rnum=3#e66bf3354362d541
>
>
> On 07/05/2010 08:48 AM, Mogliii wrote:
>>
>> Since attachments seem not to be allowed on this mailinglist :(( (compare
>> my previous email) so I uploaded them.
>>
>> 1) the spicelib thing has been already resolved. Use scones instead of
>> make.
>>
>> 3) Schematics
>> http://users.ecs.soton.ac.uk/mets09r/current-source.sch
>>
>> Explanation of circuit
>> http://users.ecs.soton.ac.uk/mets09r/lm317.png
>>
>>
>> Any help appreciated
>>
>> _______________________________________________
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>>
>
>
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