Re: spice models

> 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<mogliii@...>  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
>>>
>>> _______________________________________________
>>> Help-gnucap mailing list
>>> Help-gnucap@...
>>> http://lists.gnu.org/mailman/listinfo/help-gnucap
>>>
>>>        
>>
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>>      
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