Hi Adam,
I looked at the picture, you have to swap the blue wire and the yellow wire
between IOIO and MAX 323 :
IOIO 3 => Tx MAX 323
IOIO 4 => Rx MAX 323
> I've tried swapping the TX/RX over.
Where ? Between GPS Nav and MAX323 or between MAX323 and IOIO ?
The rule is Tx of a device to RX of the other one.
What about the Xcsoar's configuration ?
Have you the datasheet of the MAX323 module ?
Jacques Legalland
http://legalland.free.fr/Tuto.html
Date: Mon, 10 Sep 2012 11:38:44 +1000
From: a...@adam-webb.com
To: xcsoar-user@lists.sourceforge.net
Subject: [Xcsoar-user] IOIO Problems...
Hi All,
I've just put together my IOIO board, with MAX323 etc, and I'm not
getting anything from it.
Attached is a picture of the finished (ish) product, the IOIO board
talks to the phone (SGS2 - until the Streak arrives) fine (hello
IOIO works fine). I am trying to test it by plugging the DB9 into by
GPS-NAV via a standard serial cable. I have tested voltage at
various points on both the MAX323 board and the IOIO and that seems
to be working ok, and I've tried swapping the TX/RX over. There is a
better quality (but larger) pic here
http://www.adam-webb.com/website/ioio2.jpg.
The only suspision I have is the MAX323 board was different to most
pictures which I have seen on various sites/emails. The board looks
something like this
http://i.ebayimg.com/t/RS232-Serial-TTL-Converter-Module-MAX3232-MAX232-/00/s/Mzg4WDUwMA==/$(KGrHqFHJEIE915gDK!pBPhpQE2hy!~~60_35.JPG,
and I have removed the 'jumper' style connections to make things a
bit tidier, and wired the IOIO board onto the bottom (right in the
above pic) set of points.
Can anyone give me either a hint at what my problem might be, or a
way to test out various points?
Cheers
Adam
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