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Porting Mac LabView DAQ Application to Windows XP
StevePenn
Member
11-01-2013 03:26 PM
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I have a LabView Application written using LabView 2011 on Mac OS X. It uses
the NI-DAQmx Base drivers. I am porting that code to a Windows machine running
XP and LabView 2012. Trying to run the code, I received errors requesting the
DAQmx Base drivers for Windows. I installed Ni-DAQmx Base 3.7.0 which is
compatible with LabView 2010-2013. We are performing data acquisition using a
USB-6211. In the ReadMe for Ni-DAQmx Base 3.7.0 it says that for USB DAQ
module compatibility you must also install NI-DAQmx version 8.7.2. "Any other
version of NI-DAQmx automatically downloads incompatible firmware that NI-DAQmx
Base 3.7.0 does not support." However NI-DAQmx version 8.7.2 does not support
LabView 2012. The latest version it supports is LabView 8.6. And to my
knowledge one cannot install two different versions of NI-DAQmx. Thus if we
install NI-DAQmx 8.7.2 then we cannot also install a NI-DAQmx version that will
work with LabView 2009-2013.
What is the way out of this mess? I thought that LabView was cross-platform
compatible.
Dennis_Knutson
Knight of NI
11-01-2013 04:50 PM
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Since you are using DAQmx Base, do you really care if LabVIEW does not support the older version of DAQmx? You won't be calling the DAQmx functions and unless I'm mistaken, it should not matter if they are not on the palette.
11-03-2013 05:20 PM
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As I am not the only user of the system, yes it matters that the current LabView installation can run with the latest DAQmx drivers for Windows. Cross-platform compatibility should not mean that I need to disable any Windows data acquisition code in order to run LabView code written on the Mac.
But the point is moot: I tried to uninstall the current DAQmx drivers and install the old version but I could not. The current version uninstalls, but the old version will not install since it is not compatible with LabView 2010-2013.
RyanPoPo
NI Employee (retired)
11-04-2013 06:57 PM
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Steve,
The reason the DAQmx Base readme lists 8.7.2 as the required driver to be install along with Base is so that compatibility can be maintained for Base. Starting in DAQmx 8.8, the newer version of the USB firmware 600x used was no longer compatible with the protocol found in DAQmx Base. Unfortunately, there doesn't seem to be a way to maintain USB support while using newer versions of DAQmx. Since this is on Windows, the recommended action is to convert your Base VIs to regular DAQmx VIs.
There's a tool that may work to help you fo that here: http://joule.ni.com/nidu/cds/view/p/id/446/lang/en
Thanks,
Ryan
Ryan P.
CLA
CLA
