gnupic: ADC using an RC circuit instead of a ADC port??
Subject:
Re: ADC using an RC circuit instead of a ADC port??
From:
Brent Picasso ####@####.####
Date:
3 Sep 2002 14:55:51 -0000
Message-Id: <20020903145441.92052.qmail@web40607.mail.yahoo.com>
Yes, I remember seeing the 16F88 on their website, but
couldn't find a distributor for it!
Is it not in production yet? Who would be the first
parts house to sell it?
Thanks,
Brent
--- Martin Peach ####@####.#### wrote:
> Brent Picasso wrote:
> > I want to track a pressure sensor to track changes
> in
> > a automobile's manifold pressure.
> >
> > I want to measure it at for at least every
> ignition on
> > the engine... at 10,000 RPM with a 4 cylinder
> engine
> > that happens every 4ms or so.
>
> >
> > Any ideas on a 16F628 + ADC equivalent PIC I could
> > use?
>
> You could wait (how long?) for the 16F88: it will
> (possibly...) have 7
> channels of 10-bit A/D at hundreds of kHz sampling
> rate and is
> compatible with 16F628. OTOH the 18F8XX2 28 or
> 40-pin chips might be
> easier to obtain right now.
> The PIC ADC seems to be an internal implementation
> of the
> sample-and-discharge-through-resistor method.
>
> /\/\/\/*=Martin
__________________________________________________
Do You Yahoo!?
Yahoo! Finance - Get real-time stock quotes
http://finance.yahoo.com
