Bug in serial reading binary data

From sth at magnet.fsu.edu Fri Nov 2 13:17:01 2012
From: sth at magnet.fsu.edu (Scott Hannahs)
Date: Fri, 2 Nov 2012 16:17:01 -0400

Subject: [Mac]Bug in serial reading binary data
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On Oct 31, 2012, at 11:27, PaulRijk <lv_paulrijk at xs4all.nl> wrote:
> Scott,
>
> Indeed, after UNinstalling the FTDI-driver did not see the usb-serial adapter anymore. However, I noticed the problem when communicating with an Arduino-Uno which is visible (and communicating) with or without the FTDI-driver.
> So using the Arduino on the other side I was able to check both.
>
> Thanks for sending the code. Unfortunately I don't have a compiler. Is it possible for you to mail it as an executable?

Ok, so I tested it on my system now that I can get back into the lab.

Mac OS X 10.6.8 / LabVIEW 8.5.1 / VISA 5.20

I see the exact same problem. And it seems to be a VISA thing. This does not appear to be driver related. Not sure why but it is some sort of unexpected feature of VISA? Not sure why \FF shows up as two characters in the bytes at serial port functionality.

-Scott