NI USB-6251: How to acquire digital waveforms with MATLAB?

[Christian P]

Hi all,

i'm using NI USB-6251 and i wonder how to acquire digital waveforms with MATLAB R2007b?

Best Regards
Christian

[rpurser]

Hi,

A google search for "matlab data acquisition"  will turn up a number of solutions for you.

-Rob

[Ken_Tobler]

Hi!

The MathWorks, Inc.'s Data Acquisition Toolbox supports some National Instruments cards and DAQmx:
http://digital.ni.com/public.nsf/allkb/1F8D330AA1DDC7448625699F000168D3?OpenDocument

And here a tutorial:
http://zone.ni.com/devzone/cda/tut/p/id/3005

Best regards
Ken

[Mike_Wu]

Hi, I am trying to use NI usb-6251 to acquire signal under matlab, but daqhwinfo('nidaq') can not find the adaptor.

my matlab is 32 bits 2009 Ra, my os is windows 7 64 bits. I already installed NI hardware driver version 9.0.2.

so what can I do to resolve this problem?

thank you

[manisha.singh]

Hi Mike,

For win7, try starting MATLAB in admin mode. Right click on MATLAB icon and select run as admin.

Regards,

Manisha

The MathWorks

[Mike_Wu]

the matlab can read usb-6251 following your instruction!

Thank you a lot!