Harold,

>         I don't recall if your PIC had a serial port, which would make a
> difference.  I've got several products that are simultaneously sending
> and receiving DMX, scanning pots and keyswitches, exchanging data with
> printer ports, etc.  These are all with a single 16c74 running at 16 MHz.
>  If you're bit banging... good luck!

    Do you send and receive a DMX packet while doing other things? Using the
USART interrupts? The PIC16C87X have an USART that I think is capable of
this, but as I'm new to controllers, I haven't the time to try it yet.

    What do you mean with 'bit banging'?

    Best regards,

    Brusque
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