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PICList Thread
'PCMCIA and PIC'
1999\06\29@152119 by Russell Hay

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I am rather new to the PIC microprocessor and I have a project which I am
working on which requires communication over a phone line.  The thought that
I had would be to use a PCMCIA modem to communicate over the phone line
(very low baud rate for obvious reasons)  Anyway, I have been unable to find
any online documentation of PCMCIA communications.  The only thing I found
were a postings back in '97 on this list talking about interfacing, but
nothing concrete.  I've been referred to pc-card.com which requires a bit of
money to get any kind of real information on the card.  The bit of money is
more than I care to spend on Information.  If someone has any links or maybe
some information about PCMCIA communication, this would help me out a lot.
Thank you in advanced

Russell


Russell C. Hay
Vservers, LLC
spam_OUTRhayTakeThisOuTspamvservers.com
http://www.vservers.com

1999\06\29@153033 by John Perkinton

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Why are you using a pcmcia modem, just use a normal modem and set your pic
up with something like a max232 and run some rs232 routines. cheaper and
easier.

{Original Message removed}

1999\06\29@154038 by Russell Hay

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Much larger to do it that way.  I wanted to use the PCMCIA because it is
smaller and more practical to "carry in your pocket".  The device that I'm
working on is going to be a remote sensor unit which calls into the main
system to report it's data at certain times, but it needs to be small.

Russell C. Hay
Vservers, LLC
.....RhayKILLspamspam@spam@vservers.com
http://www.vservers.com

{Original Message removed}

1999\06\29@154434 by Adam Davis

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It would be much easier and less expensive to use a scenix and the modem virtual
peripheral - as a seperate device from your current design.  In fact, if someone
were to make a 1200 or 2400 bps single chip modem with DAA, then I'd bet a lote
of people would be purchasing it.

-Adam

Russell Hay wrote:
{Quote hidden}

> {Original Message removed}

1999\06\29@162348 by Harold Hallikainen

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       Any particular reason to use PCMCIA instead of ISA?  ISA is
pretty easy and the modems are cheaper.

Harold


Harold Hallikainen
.....haroldKILLspamspam.....hallikainen.com
Hallikainen & Friends, Inc.
See the FCC Rules at http://hallikainen.com/FccRules and comments filed
in LPFM proceeding at http://hallikainen.com/lpfm

On Tue, 29 Jun 1999 12:18:15 -0700 Russell Hay <EraseMErhayspam_OUTspamTakeThisOuTVSERVERS.COM>
writes:
{Quote hidden}

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1999\06\29@174959 by Russell Hay

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Size mainly..

I think I'm going to look into the suggest which Adam Davis made about
scenix with the modem virtual peripheral.. this should make it even smaller
I would think which serves my purposes more so than the PCMCIA, though the
commodity nature of the PCMCIA modem might make it more appealing..

Russell C. Hay
Vservers, LLC
@spam@RhayKILLspamspamvservers.com
http://www.vservers.com

{Original Message removed}

1999\06\29@204149 by Mike Cornelius

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part 0 1990 bytes
Check out "Inside PC Card" by Faisal Haque published by EDN. I used this
text to help me do exactly what you're talking about. It actually turned out
to be very easy to interface the PIC to PCMCIA, you don't need a controller
especially for PCMCIA I/O devices like a modem.

Regards,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Mike Cornelius                  Internet: KILLspammikeKILLspamspambytethis.com.au
Byte This Interactive           Phone:    +61 2 9310-2157
PO Box 1342 Strawberry Hills    FAX:      +61 2 9319-3948
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> {Original Message removed}

1999\06\30@062656 by Jim Main

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----- Original Message -----
From: Mike Cornelius <RemoveMEmikeTakeThisOuTspamBYTETHIS.COM.AU>
To: <spamBeGonePICLISTspamBeGonespamMITVMA.MIT.EDU>
Sent: 30 June 1999 01:31
Subject: Re: PCMCIA and PIC


> Check out "Inside PC Card" by Faisal Haque published by EDN. I used this
> text to help me do exactly what you're talking about. It actually turned
out
> to be very easy to interface the PIC to PCMCIA, you don't need a
controller
> especially for PCMCIA I/O devices like a modem.

What about interfacing the pic to a PCMCIA network card - does the book
cover that as well?

Jim
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1999\06\30@151520 by Eric Smith

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Adam Davis <RemoveMEadavisspamTakeThisOuTBALADYNE.COM> writes:
> if someone were to make a 1200 or 2400 bps single chip modem with DAA,
> then I'd bet a lote of people would be purchasing it.

http://www.xecom.com

Not exactly single chip (no one has ever done that, and there's no good
reason to), and not cheap.  But they are small.

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