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Re: gEDA-user: On integrating simulator in gschem



Ivan Stankovic wrote:
On Mon, Mar 15, 2010 at 04:47:05PM -0500, John Griessen wrote:
Al wants more info than you get with SPICE netlist formats.  So Verilog-ams
level of function is possible.

While we're at it, was there a consensus on using verilog-ams as the format
of choice for Al's translation system?

Consensus?  Not yet.  Al does ask for two way translatable formats,
so including enough info to recreate a schematic is implied, but not
how exactly appearance matching it will be.  I'm thinking of graphic
elements as only the generic rectangular boxes at first, then by
way of text attributes, add more later.  the detailed info to
recreate schematic appearance is not needed for effective translation
purposes, just connectivity.  A reasonable goal is to capture
data that assists in putting back a schematic as it was, but not
"doing the layout" part of a schematic.  A big assist would be to
keep any unique identifiers from schematic symbols until a symbol
is changed for simulation purposes.  Then one could relate the
simulation netlist points to the original schematic points for cross
probing, even when the sim netlist is a subset or different in part
from the original.   Then you could do a process of back annotating,
deleting schematic symbols not found in the sim netlist, and saving
the modified schematic as an aid to simulation displaying.  With a small
amount of "symbol layout" time, your new schematic for cross-probing purpose
would be a one-to-one match with the simulation.

Al asked for a format for electric/electronic
netlists that can include any simulator's or schematic/netlist capture
program's circuit information.

John
--
Ecosensory   Austin TX


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