Continuous AO using PXI-6733

[NK_LHP]

We are having some issues with the PXI-6733. Our need is to continuously generate an analog output Square wave and then read back the frequency and duty information via CAN. We are not getting the wave that we want, possibly due to some timing issue or some other issue. Typically we generate square wave with frequency of 1000 Hz and 70% duty. The typical sampling info is Fs = 10,000 samples/s and #s=100,000 samples. I am using the following sequence of AO vi’s and Property Node:

Our ECU returns frequency as zero or any incorrect value.

Alternatively, if we play the wave using a PXI-5412 Function Generator, we get the exact frequency reply via CAN. Our customer does not have the PXI-5412 and we definitely need the same results using PXI-6733.

[tbob]

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@NK_LHP wrote:

. I am using the following sequence of AO vi’s and Property Node:

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You didn't write your sequence.  Better yet, attach your vi so that we can see what is wrong.  Typically, you would put the Write function inside a loop so that it would continuously write the data.  Then you should see a continuous wave until you stop the loop.

What property node are you using?