NAME
gnetlist - gEDA/gaf Netlist extraction/generation
SYNOPSIS
gnetlist [-e] [-i] [-I] [-q] [-s] [-v] [-l schem_file] [-m schem_file ]
[-n] [ -O option ] [-h | --help] [-g guile_procedure] [-c scheme_string
] [-o output_filename] schematic1 [... schematicN]
DESCRIPTION
gnetlist is the netlist extraction/generation program which is part
gEDA (GPL Electronic Design Automation) toolset. This program takes a
schematic for its input and outputs a netlist.
gnetlist depends heavily on guile (a scheme based scripting language).
It uses guile to define the output format. Basically gnetlist reads a
schematic, creates an internal representation of the various
connections, and then a guile script extracts the connections into some
netlist format.
gnetlist is very much so a work in progress. Currently it supports the
following backends:
· Allegro netlist format (-g allegro)
· BOM / BOM2 - Bill of Materials (-g bom and -g bom2)
· Partslist 1,2,3 - More Bill of Materials (-g partslist[1-3])
· DRC - Start of a design rule checker (-g drc)
· DRC2 - A second design rule checker (-g drc2)
· gEDA - native format, mainly used for testing (-g geda)
· Gossip netlist format (-g gossip)
· PADS netlist format (-g pads)
· PCB / PCBboard (-g PCB and -g PCBboard)
· PCB actions file for forward annotating pin/pad names from schematic
to layout (-g pcbpins)
· gsch2pcb backend (-g gsch2pcb)
· ProtelII netlist format (-g protelII)
· Spice compatible netlist format (-g spice)
· Enhanced spice compatible netlist format (-g spice-sdb)
· Tango netlist format (-g tango)
· Verilog code (-g verilog)
· VHDL code (-g vhdl)
· VIPEC netlist format (-g vipec)
· Bartels Autoengineer netlist format (-g bae)
· GOSSIP system simulation system netlist format (-g gossip)
· MAXASCII netlist format (-g maxascii)
· VHDL-AMS netlist format (-g vams)
· Futurenet2 netlist format (-g futurenet2)
· SWITCAP switched capacitor simulator netlist format (-g switcap)
· RF Cascade netlist format (-g cascade)
· RACAL-REDAC netlist format (-g redac)
· SystemC netlist backend (-g systemc)
· Calay format netlist backend (-g calay)
· Osmond format netlist backend (-g osmond)
· Eagle netlist format (-g eagle)
· Netlister for symbolic circuit analysis using Mathematica (-g
mathematica)
· LiquidPCB format netlist backend (-g liquidpcb)
For more info on these formats please look at the README.*
Please read the official documentation on how to use gnetlist, since
this man page just describes the command line arguments and a few
examples on how to run gnetlist.
OPTIONS
gnelist accepts the following options:
-q Quiet mode on. This mode turns off all
warnings/notes/messages. (optional)
-v Verbose mode on. This mode gives as much feedback to the user
as possible. (optional)
-g guile_procedure
Specify the guile procedure which is executed to create the
netlist. Use "-g help" to display a list of available backends.
-o output_filename
Specify the filename which will contain the netlist generated
by gnetlist. If this option is not specified the default
filename is "output.net".
-l scheme_file
Specify a filename which contains scheme code to be loaded and
execute before any backend is loaded or any guile procedure
(using -g flag) is executed. This flag can be specified
multiple times and can be used to pass information to backends.
-e, --embed
Force embedding contents of .include file when using the spice-
sdb backend.
-O string
Pass the given option to the specified backend.
-m scheme_file
Specify a filename which contains scheme code to be loaded and
execute after the backend is loaded but still before any guile
procedure (using -g flag) is executed. This flag can be
specified multiple times and can be used to pass information to
backends. This flag, for example, allows the user to override
variables inside of the backends (such as paths).
-n, --nomunge
Do not autocorrect the refdes attributes. Only applies to the
spice-sdb backend.
-c string
Pass the specified string to the guile interpreter. This
allows you to execute arbitrary guile scripts from the command
line. Be sure to surround the string with either single or
double quotes to satisfy your shell. The string is execute
before any init or netlist backend scheme code is loaded or
executed.
-I, --include
Put .INCLUDE <filename> in output file instead of model file’s
contents.
-h, --help
Print out short command line help.
-i Interactive mode. After the schematic is read in and parsed
then go into interactive mode. Interactive mode allows the
user to execute guile procedures directly.
-s Sort output netlist (for Gnucap)
schematic1 [... schematicN]
At least one schematic file must be specified. If multiple
schematics are specified then they are sequentially read in and
parsed with the assumption that they are all part of the same
design. It is important that the schematic(s) follow all the
options (ie last).
EXAMPLES
These examples assume that you have a stack_1.sch in the current
directory.
gnetlist requires that at least one schematic to be specified on the
command line:
./gnetlist stack_1.sch
This is not very useful since it does not direct gnetlist to do
anything.
Specify a guile procedure name to get gnetlist to output a netlist:
./gnetlist -g geda stack_1.sch
The netlist output will be written to a file called "output.net"
in the current working directory.
You can specify the output filename by using the -o flag:
./gnetlist -g geda stack_1.sch -o stack.netlist
The spice backend is run against the schematic(s) if you specify
-g spice and the tango backend is run if you specify -g tango.
To interact with the guile interpreter:
./gnetlist -i stack_1.sch
You will get a prompt where you can execute guile procedures.
To get a more verbose feedback as to what gnetlist is doing run
with the -v flag:
./gnetlist -v -g geda stack_1.sch
ENVIRONMENT
gnetlist respects the following environment variable:
GEDADATA
Specifies where the various required scheme and rc files are
located (the default is ${prefix}/share/gEDA). This
environment variables does not need to be set by the end user
unless they are moving the executables to a new install
${prefix}.
AUTHOR
Ales Hvezda and many others
SEE ALSO
gschem(1), gsymcheck(1)
COPYRIGHT
Copyright © 1999-2008 Ales Hvezda
This document can be freely redistributed according to the terms of the
GNU General Public License version 2.0.