How to receive stream of bytes using PIC USART

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  1. - 16th June 2009, 16:57 #31
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    dhouston
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    OK - it has only one stop bit. It appears that various manufacturers use their own protocol.

    60 packets per second x 5 bytes per packet x 10 bits per byte = 3000 bits per second which, at 4800bps, means 30 (or fewer - depends on pace) idle bit-times between packets.

    I would capture 10 bytes, scan them for the first initial byte (>127) and then look at the following 4 bytes for your data.

    EDIT: 9 bytes would guarantee one complete packet.
    Last edited by dhouston; - 16th June 2009 at 17:10.
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