SV: Re: SV: Re: [sdiy] Simulating SW?

[Magnus Danielson]

From: karl dalen <dalenkarl at yahoo.se>
Subject: SV: Re: SV: Re: [sdiy] Simulating SW?
Date: Sun, 20 Nov 2005 21:29:38 +0100 (CET)
Message-ID: <20051120202939.64930.qmail at web25510.mail.ukl.yahoo.com>

> 
> > For anyone new to simulation... PLEASE thake this advice. Run >the simulation
> AND build the circuit, and compare.  If they >don't look alike, change the 
> simulation
> > models until it really works like the real thing.
> 
> Was'nt the whole idea with the simulating
> hoopla to actually do the opposite! ;)

Yes, yes... and you know that very well. ;)

The point is that don't trust your simulation if your models is too weak to
model what you see, but when they start to make sense (and you will learn to do
that more straight-forward as you have gained experience) then the simulation
tool can be more trusted than in the start. If you *really* understand what you
are doing, you don't need to simulate, but you may occasionally simulate in
order to verify in the middle of the night that you are roughly right.

I don't know why I see the picture of Bob Pease tossing his old computer from
the top of Nationals parking-garage building motivating that now THIS computer
will not lye to him again or the use of the simulation output as papper in the
birdcage with the comment that SPICE printouts is usefull for at least
something... simulation is a bitch if you don't know when you can trust it!!!

> KD (who rather use the plastic strip/bread board to simulate) ;)

That is not simulation, that is doing a test-build, which is certainly a
recommended method of development when you can do it.

Cheers,
Magnus