How to generate 23khz using PCI-6723

[krishna_ak]

HI,

My requirement is to generate a waveform of 23khz using PCI-6723.

I am able to generate frequency of 23khz when I changed the below parameters

Rate = 800kHz

Frequency = 23kHz

Amplitude = 2

But I would like to generate same frequency for another channel simultaneously

My Question is Simple : - How to generate frequency of 23khz for multiple channels using PCI-6723

Waiting for Reply's ASAP

Regards

krishna

[Michael.Phillips]

Krishna,

Change the physical channel control Dev1/ao0 to Dev1/ao0:1 to output the signal to analog output channels 0 and 1. Also, you will need to change the DAQmx write to be for multiple channels, and use a Merge Signals function to duplicate the waveform for both input channels. Check out the example I have attached.

Of course, you could always just connect two wires to one analog output instead.

[krishna_ak]

Michael P

Thanks for your reply But can u send a same example in Labwindows

Regards

krishna

[Michael.Phillips]

Krishna,

Here is a link to an example program that shows how to perform Continuous Multi-Channel Analog Output with NI-DAQmx. This example allows every output channel to have a different output waveform type with different amplitudes. So, to have both channels output the same waveform you could just have both channels write the same waveform data.

NI-DAQmx: Continuous Multi-Channel Analog Output Example in CVI