I have found, in my great stack of electronics magazines, the article from
the August 1996 Popular Electronics, about a Caller ID - PC interface, using
a PIC and the Motorola CallerID chip. Anyone who wants it can mail me
off-list - I've scanned it in.

-Randy Glenn
E-Mail: PICxpert@yahoo.com
Web: http://i.am/PICxpert

Currently wondering why I can't get in to Safe Mode - where's a Mac when you
need it?

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of John Mullan
Sent: Thursday, February 03, 2000 6:20 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: [PICLIST] More about PIC and CallerID


Well, I was able to discover 2 chips that seem to be good for decoding the
caller ID stuff.....

MC14LC5447      Motorola
MT88E43BE       Mitel

Even found the odd FSK Modem chip but were not proper audio freqs for CID.


If anyone comes across some PIC source code on how to generate the CallerID
transmission please, by all means forward it to myself.  I can figure out
the actual data bits to send, but generating a carrier frequency and
modulating it at the correct frequencies is beyond me. I'm more or less just
a "digital" type, analog scares me :)

John Mullan

PS:  I suppose I could just do some fancy switching to send the data portion
through to the remote phones......


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