Need to Interface to Tek2440 Dig scope, and acquire & perform FFT's

[MrRob]

I am sort of cluless where to start to get a Tek 2440 (1989 or so)  500 MHz Digitizing scope to work in CVI 8.0.1. I need the whole setup within a day - The USB to GPIB is working fine - the only problem is the command syntax is older --- i.e. *IDN? does not work but changing it to ID? brings back a successful string.

The TekMate 2400A for this in oscilloscope is dead and the DOS software decrepit! What I do have is the Tek 2440 scope that works fine; I found both the drivers for the USB-GPIB-B external adaptor and the tek24xx driver for this instrument. My ultimate goal is to capture the data in digital form & perform FFT's on the captured data, then store, print, compare, etc.

Anyone have anything compatible like this? Right now I am going  through the tutorial http://zone.ni.com/devzone/cda/tut/p/id/3512#toc0 at the NI web site.

Thank you

[Former NI Employee MS]

Hi Mr. Rob,

Just give a try to the following driver: Tektronik tk24xx Oscilloscope.

Best regards,

[MrRob]

Thank you for your help. I was able to build an Instrument driver for thre Tek2440 oscilloscope in CVI... however it had a link error when I went to debug/build ... in a undefined _menu definition within a CVI startup library. Editing the instrument driver for the 2440 was actually fun & rewarding, although this device has the older GPIB commands that needed syntax fixes.

So, this was a partial failure in the link error, and no User Interface panel was found for this device which menas i would have to link objects within CVI to the panel.

I realize that CVI was more than I needed and have switched to the LabView 8 graphical type of application. I am hoping to do this in steps where I can create a block flow diagram of dependencies and conditions and operate the on-screen 2440 scope. The next step will be capture of data for signal analysis, fft, harmonics, power spectrum, etc. I miss that the Tek Math Pak 2402A used to make this so easy albeit slow and cumbersome.

MrRob

[MrRob]

Success! I am able to conneect to the 2440 scope and change the settings. Now is the task of creating a block flow control diagram including data transfer to a file or memory, parsing it, and then performing analysis. I would like to also have a display of data sent, comparitive plots, and a means to print etc.

[Kalin_T]

MrRob,

Congratulations on successfully building a CVI driver for your device!
Normally the device drivers downloadable from our website come with an example program. You should try finding one first. If you don't find one, then create a new post and give us a lot of detail in terms of what you have done so far and what you are trying to achieve. Attaching some initial code would be helpful if you wish others to review your work so far and give you some pointers.

Best regards,