Reply-To: "Geraldo S."
From: "Geraldo S."
References: <email@example.com> <firstname.lastname@example.org> <email@example.com>
Subject: Re: Open Source Consumer Products
Date: Thu, 21 Nov 2002 19:20:54 +0100
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
NNTP-Posting-Date: 21 Nov 2002 18:22:00 GMT
"Mel Wilson" wrote in message
> In article <firstname.lastname@example.org>,
> "Geraldo S." wrote:
> >"Lewin A.R.W. Edwards" wrote in message
> >> ... on the other hand, you could just buy one, with a warranty, for
> >> $69.95 at Wal-Mart, and scavenge these parts. Oh, wait, what was the
> >> point of this exercise again?
> >What's the rationale behind this story then? A VCR is a pretty one-sided
> >story. Most CD players, tuners, receivers, amplifiers and TV's are built
> >using off the shelf parts. Anyway, except for the mechanism, most things
> >a VCR could probably be built using conventional parts. And when you
> >purchase those parts in large quantities, I'm sure the price would be
> >comparable, maybe slightly more.
> I had a gig once doing firmware for a home keyboard,
> intended to be the kind of thing you'd get at Wal-Mart, or
> Canadian Tire around Christmas. Our engineer did it with a
> 68HC11, an ADSP2105 and a lot of 74-series logic. Far too
> late in the game, we got a Casio at the same price point,
> and we took it apart. It had about six chips in it - a
> couple of 3cm square monsters and maybe four smaller, all
> SMT. We didn't quit then, but the writing was on the wall.
> However dedicated and deft our assembly people were,
> whatever machinery they had, they could never stuff 100
> chips into a board and solder them down for the same cost as
> Casios place-six-chips-and-zap.
> >[ ,,, ]
> >Anyway, the morale of my story is that most consumer electronics will in
> >future be based on generic parts such as MCU's and DSP's
> Incorporated in custom ASICs along with all their glue logic
No. Glue logic is ussually implemented using PLD's.
> > with very few
> >custom parts (programmable logic such as PLD's could still be used but
> >are also COTS parts). And more and more appliciances will use SoC
> >(system-on-a-chip) parts where most of the functionality will be wrought
> I don't agree. These functions are available as COTS but
> manufacturing costs drop enormously when you pay to get them
> repackaged to suit your assembly line.
How's that? I mean most placement robots can handle standard SMD IC's
perfectly well. And I've always had the notion that an engineer (like
myself) has to design the product in such a way that it's easy to assemble,
with the fewest and cheapest parts.