Any example code to generate and measure both channels using a 4451 DSA card?

I want to generate signals and check the magnitude and phase performance between the inputs on a 4451 DSA card. It seems like there would be some example code already available for this function.

I've attached an example which shows how to perform sychronized input and output with a NI-4451 board. This example only acquires the raw voltages and displays them on a graph. If you want magnitude and phase information, consider using a complex FFT algorithm.
Hope this helps,
Jack Arnold
Application Engineer
National Instruments
Attachments:
DSA_Simultaneous_IO_(reduced_ringing).vi ‏177 KB

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JLudwig wrote:
Any reason why you call getSourceDataLine() twice? ..Oh wait, I know this one (..snaps fingers. yes) it is because I am a mor0n, and forgot the class level (static) attribute declared earlier in the source when I (re)declared the local attribute and called getSourceDatLine (which was redundant, given the next line, which as you point out also called getSourceDataLine).
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Method 1 makes more sense, unless you intend to refactor the code to only instantiate a single SDL for however many times the user presses (what was it? Oh yeah..) 'Generate Tone'.
My 'excuse' for my odd programming is that this was 'hacked down' from a longer program to form an SSCCE. I should have paid more attention to the fine details (and perhaps run a lint checker on it).
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..This is quite handy, thank you.You're welcome. Thanks for letting us know about the error (OK - the pointless redundancy). Thanks to your report, other people who see this code later, will not have to wonder what (the heck) I was thinking when I did that.
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Edit 1: Changed one descriptive word so that it might get by the net-nanny.
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Any example code to generate and measure both channels using a 4451 DSA card?

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