Multifunction DAQ

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using NI 6009 under Fedora Linux

Hello,

I have an NI 6009 USB DAQ (at least that is what the label in the case reads) and I have installed it under Fedora 11

with kernel 2.6.30.10-105.2.23.fc11.i586. 

I can run the examples and I have been able to generate voltages at both analogue outputs and to read them through

all 4 differential inputs. Nevertheless, there are some anomalies: 

 

1.- When I run lsdaq I get the following output:

 

Detecting National Instruments DAQ Devices
Found the following DAQ Devices:
NI USB-6008: "Dev1"    (USB0::0x3923::0x717A::00E101F0::RAW)

Thus, the system seems to be detecting a 6008 instead of the 6009. Can this be due to an error in the

installed drivers?

 

2.- Consistently with the above result, I run the mxbaseconfig utility and the sampling rate for the different

analog input channels can only be set to 10000 Hz, instead of the expected 48 kHz. I imagine that the voltage

conversion is also being done at 12 bit instead of 14, but I haven't tested it. Is that a consequence of problem

No. 1?

 

3.- When I run the examples, for instance acquire1Scan etc., the program takes about 15-20 seconds to

finish, although the final output is apparently correct. Is that delay normal? Also, from time to time without

apparent cause the programs cause a segment violation, running them again usually works. 

 

4.- Finally, is there any documentation available anywhere about the program commands and functions, that

could facilitate interpreting and modifying the examples and building new ones?

 

 

Thank you very much for any help

 

Juan J. de Miguel

 

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