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[DPRG] Serial Woes
Subject: [DPRG] Serial Woes
From: DeltaGraph at aol.com
DeltaGraph at aol.com
Date: Sat Feb 3 14:08:09 CST 2007
Eric,
Almost sounds like an I2Cish type of thing, like where you might need an
open collector transisitor on your receiver (BrainStem RX) coupled to 1 wire bus
that is pulled up with a resistor. In this case you would need an inverter
or replace all of that with an open collector non-inverting buffer -- this
would of course maintain the polarity of signals received by Parallax module and
it should still work.
Now then I would think you would need to invert the 1 wire bus signal into
the TX line on the Acroname module.
Does that sound right.
What is the parallax module doing with the wire when nothing is happening?
Floating I presume.
In any case I would say you need to decouple any direct drive of the pin.
Does taht seem to amke sense?
Ron
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