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Message-ID:	<20211116215351.10585.qmail@rahul.net>
Date:	Tue, 16 Nov 2021 13:53:51 -0800
To:	geda-user AT delorie DOT com
Subject:	Re: [geda-user] lepton-netlist spice hierarchy
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John Doty writes:
> Short answer:
> 
> Make a file “lepton.conf” in the project directory, containing the lines:
> 
> [netlist.hierarchy]
> traverse-hierarchy=0
> 
> Long answer:
> 
> You’ve mixed spice-style and layout-style hierarchy. Layout-style, with hierarchy traversal in the netlister using source=, connects pinlabel to refdes by name using symbols with device=INPUT or device=OUTPUT. Spice-style connects pinseq to refdes, in lexical/numeric ordering (P10 after P9), using device=spice-IO . Spice-style is intended for separate netlisting of subcircuits, while layout style flattens out the netlist.
> 
> Spice-style has a few problems:
> 
> 1. The pinseq attribute is overloaded, used also for slotting. This may cause conflicts.
> 
> 2. The association of lexical/numerical ordering of symbol refdes with pinseq is confusing and error-prone.
> 
> 3. It’s incompatible with flattening netlists for layout.
> 
> This is why I made spice-noqsi work properly in layout-style without flattening (traverse-hierarchy=0). You never need to use spice-style (although you may) with spice-noqsi.
> 
> > On Nov 16, 2021, at 1:59 PM, conover AT rahul DOT net (John Conover) [via geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:
> > 
> > John Doty writes:
> >> 
> >> 
> >>> On Nov 15, 2021, at 7:50 PM, conover AT rahul DOT net (John Conover) [via geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:
> >>> 
> >>>   http://www.johncon.com/john/archive/imm-6.tar.gz <http://www.johncon.com/john/archive/imm-6.tar.gz>
> >>> 
> >>> which is the gEDA sources.
> >>> 
> >>> Changing the program names to the Lepton equivilents, all works fine,
> >>> except the Spice file, schematic.cir, has only the power supply on the
> >>> top level, schematic.sch.
> >> 
> >> Well, that’s a complete, complicated project. Can you strip it down into a simple test case to ease debugging? Something like:
> >> with a single, embedded component.
> >> 
> > 
> > http://www.johncon.com/john/archive/toy.tar.gz
> > 
> > 1 transistor, 1 R, 1 C, in 1 X, tape archive is about 4K.
> >

Thanks, John. That's a big help.

    John

-- 

John Conover, conover AT rahul DOT net, http://www.johncon.com/

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