USART 9 bit receiver with address detect

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  1. - 29th October 2006, 02:14 #1
    meldavia's Avatar
    meldavia Guest

    Question USART 9 bit receiver with address detect

    I need to program a PIC16F648 as a slave device using the address detect mode under interrupt. The idea is to flag the foreground program only when an address match has occurred with a small data packet attached that was read correctly. I would then ACK the host and set a global flag to tell the foreground that a packet has been received.

    eg:- if I am address $85 then

    $185 (address $85 , thats me so I read on)
    $10 (eg:- packet length 16 bytes)
    $CC (checksum)
    $nn....$nn (16 bytes of data)

    if all went well, I then send an ACK to the host
    and flag the foreground routine that a packet is ready.

    Can anyone point me to a code example to save me some time? Thanks in advance, Dave
    Last edited by meldavia; - 29th October 2006 at 02:17.
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