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SERIN from a caller id — Parallax Forums

SERIN from a caller id

ArchiverArchiver Posts: 46,084
edited 2004-05-20 20:25 in General Discussion
Hi All,
I currently have the following resources for my caller ID:


Data sheet MT8841 Data Sheet
http://assets.zarlink.com/DS/zarlink_MT8841_JAN_01.pdf


Application Note MSAN-144 - Applications of the MT8841 Calling Number
Identification Circuit
http://assets.zarlink.com/AN/msan_144.pdf


My Goal is to extract information from the Caller ID, save those
information to my BS2 (on BASIC STAMP Activity Board) and transfer the
retrieved information from BS2 into my Computer either via DEBUG or
SEROUT.


The fact is, I just basically need the main information coming from
the Caller ID IC (i.e. name and phone number) I just don't know what
order or when these array of bytes become available. Assumingly I
have wired everything correctly from the MT8841 to my BS2. Can anyone
please help me grab and perhaps spit at least the name and phone
number from the caller id MT8841 through BS2 and out to my PC either
via DEBUG or SEROUT? I desperately need help.

My current problem right now is that before I can get the name and
phone # information, I have to skip some 300 continuous bits of
alternating "0"s and "1"s, a mark signal composed of 80 plus/minus 10
bits of continours high, 5 to 6 bytes of message information, and mark
bit(0-10).

Any suggestions how to go by waiting for those information to pass and
extract the name and phone number after than?

Does anyone have any suggestions? Thank you.


Sincerely,
UCSD
Ben Gacud
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