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From: | Abhijit Kshirsagar <abhijit86k AT gmail DOT com> |
Date: | Wed, 16 Jan 2013 15:23:25 +0530 |
Message-ID: | <CACNnPRnyahDE8Hhhyc6+UFE6=55zmWVP1f8m=E-p4CJWOb=2=g@mail.gmail.com> |
Subject: | Re: [geda-user] gnetlist hierarchy uref order setting |
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>> 2. The default setting seems to be "append" for geda-gaf 1.6 and beyond - >> but was "prepend" earlier? I can't seem to find if it changed anywhere in >> the source code tree. > I don't think it has changed. I ask because some schematics i had worked with using some early version of gEDA are no longer working because the refdes-es are all appended now - the only explanation is that there was some gnetlistrc lurking somewhere. > Well, spice-sdb is supposed to fix the prefixes for SPICE. I am using spice-sdb, but unless i specify "prepend" my netlists are unusable for SPICE. Here is a minimal example, with geda-gaf 1.8: <http://www.cedt.iisc.ernet.in/people/students/kabhijit/Files/HierarchyTest-post%20to%20gEDA-user.tar.gz> > turn hierarchy off in gnetlist. I read the hierarchical design guidelines given by Peter Kaiser [1] and others [2],[3] and followed them to a T. I also looked into the RF Amplifier design given in the default examples. Does one use a makefile for such a design? Moreover the ease of doing Down-Schematic seems to be lost. > Put (hierarchy-traversal "disabled") in your gnetlistrc. Then I netlist subcircuits separately and > let SPICE do the hierarchy expansion. See > http://www.brorson.com/gEDA/SPICE/intro.html. Seems to be the answer! Looking into this. Thanks. > trouble with memory leaks provoked by large > flat netlists, and it's usually faster to let SPICE do the expansion. Is there any documentation on this wrt ngSPICE? Best Regards, ~Abhijit K [1] http://www.easy-asic.de/downloads/HOWTO_hierarchical_designs.pdf [2] http://transistorgrab.de/en/2009/06/21/hierarchische-designs-mit-geda/ [3] http://wiki.geda-project.org/gschem-projects
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