Multifunction DAQ

[donald1990]

 3 usb ports with version is 2.0

no external hub or any naother usb device attached to the computer .

i am using Bgao program but still showing the same error

i am using the bgaos code and still getting the same error

[Dj Bucci]

Hey everyone,

I am a grad student overseeing student groups working with the USB-6009 in MATLAB through the session-based interface of the data acquisition toolbox.

A bunch of them are having problems similar to what has been described here. When troubleshooting each group, I go into their computer's Measurement & Automation explorer and attempt to read data (say 100 samples at 1000 samples/sec). It runs successfully three times or so, and then it craps out giving the 200361 error due to buffer overflow. It then stops working until I unplug their DAQ and replug it in to their machine.

Is there any way I can set the USB transfer request count property through the measurement and automation explorer? Or something that isn't Labview?

FYI everyone is using MATLAB r2012a, windows 7 64 bit, and DAQmx 9.5.

[Tunde_S]

Hi Dj Bucci,

I do not believe this particular workaround works for the Measurement and Automation Explorer.

The workaround that John posted here requires access to the lower-level DAQmx API, which is not available in the Measurement and Automation Explorer.

[Dj Bucci]

Yea that's what I thought.

As far MATLAB goes, I don't think their Data Acquisition toolbox is updated to be able to set this either. The only way I could forsee setting this value in MATLAB would be to directly interface with the DAQmx C library through MATLAB...at which point it wouldn't really make sense for me to use MATLAB.

Oh well. Hopefully MATLAB updates their data acq toolbox to include this option soon.

[Hilby]

Hallo!

Sry for bringing up this topic again, but I need your help. I use the USB-6009 with the newest drivers. I got the errormessage after starting and stopping measurements and I need to disconnect the device before I can start a new succsessful measurement.

I cannot use the posted workaround because I do not use Labview.

Is there any workaround for Dasylab or ths MAX?

Hope for help.

Thanks a lot and bye!

Hilby