Re: gEDA-user: gnucap - oscillator example

[Dan McMahill <dan@xxxxxxxxxxxx>]

Paul Tan wrote:
> Hi Dan,
> 
>> "give the the script to do what I just did".
> 
> Do you mean:
> 1)  the user activated a submenu item, and he/she wants to
>     display the "Scheme/shell" script that was activated?
> or
> 
> 2) The user wants to display the last user input dialog
>     before he/she click OK?  Like a repeat last Macro?

What I meant was this.  You fire up a GUI simulation environment.  Set 
the top level schematic, pick a transient analysis, set things like 
start/stop time, set any design variables that may need setting (power 
supply voltage, amplitude/frequency of some source, a resistor value, 
etc), run the sim and plot some outputs.  Now you pick some "save 
simulation script" option and you'll get a script that if you execute 
it, you'll reproduce the simulation.

The idea is that maybe you want to do something more complicated in a 
scripting environment but you can use the gui as a 'script builder' for 
working out the basic simulation commands.

An example output (in no particular language) that I'm envisioning would 
be something like:

------------------------------

# the top netlist
design = mynetlist.net

# include model libraries
include_model = transistors.lib
include_model = chips.lib

# set design variables
setparam R1=10k
setparam VDD=1.8

# set up a transient sim
analysis name=tran1 type=tran start=0 stop=1u

# set up an ac sim
analysis name=ac1 type=ac ......

# run the sims
run tran1
run ac1

# do post processing (fft's, differential/common mode calculations, etc)

# plot the outputs
plot ......

------------------------

In other words, it doesn't have info like "user clicked here" but it has 
all the info needed to reproduce the configured simulation.

Now that the user has the basic commands all in place in a file it can 
be much easier to expand what the simulation covers (say a power supply 
sweep, amplitude sweep, temperature sweep, stability of multiple loops, 
etc).

> 
> 
> Dan, have you got a chance to try the
> "Generic Gschem Dynamic Scripting Tools Menus" package I posted
> http://archives.seul.org/geda/dev/Jul-2008/msg00012.html ?
> 
> If you did, any thoughts and suggestions?

I have not.  Do you have a web page with maybe a screen shot and example 
of what it does?

Were you able to take advantage of any of the work I did a few years 
back in adding some guile functions to gschem to support adding a 'pcb' 
or 'gnucap' menu?  Sadly, I ran out of time and never quite hit critical 
mass on that.

> -----Original Message-----
> From: Dan McMahill <dan@xxxxxxxxxxxx>
> To: gEDA user mailing list <geda-user@xxxxxxxxxxxxxx>
> Sent: Wed, 9 Jul 2008 5:27 pm
> Subject: Re: gEDA-user: gnucap - oscillator example
> 
> 
> 
> al davis wrote:
> 
>> If you can make the gEDA/PCB/gnucap combination work well enough
>> that 100% schematic driven gives you all the functionality of a
>> command line, you have my complete support.  If you can just
>> make it do beginner tasks well, without holding them back, you
>> have my complete support.
> 
> What can be really useful is for the gui driven setup to have a menu
> choice that says "give the the script to do what I just did".  That 
> sort
> of functionality can be a huge benefit when learning to use whatever
> scripting/programming capability might be available for a simulation
> environment or simulator.  Now you somewhat have the best of both
> worlds.  The gui doesn't provide the only interface so you're not
> limited by gui sorts of constraints but it is there to help you with
> simple things and for getting you started on the more complicated 
> things.
> 
> -Dan
> 
> 
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> 
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