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motorola caller id chip??? — Parallax Forums

motorola caller id chip???

ArchiverArchiver Posts: 46,084
edited 2002-04-17 17:14 in General Discussion
hi,

will the motorola caller id chip work with a stamp?


all i want it to do is check the incoming phone number then send the
phone number to the stamp.


i want to do this without a PC, just the stamp and the caller id chip

http://e-www.motorola.com/brdata/PDFDB/docs/AN1733.pdf

any thoughts?

Steve

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2002-04-17 17:14
    Hi there,Motorola has discontinued its production of their 2 CID chips...i
    suggest Holtek HT9032...still in production $3US.The BS is too slow (i was
    dissapointed...and switched to assembly on a PIC). You need a verfication
    algorithm to check for noise every 7 clocks* in the case of HOltek's chip.*
    consider that the cid sends serial data at 1200bps. You need to sample this at
    16x1200...and check for noise when you get to clock 7 so that you sample the
    middle of the bit.Switch to assembly and a good PIC...the PICS fly-1
    instr/cycle...parallax is too slow Radu


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