6733 multiple frequency waveforms

I am working with the PCI-6733 DAQ card in the DIAQMX C environment (Not Labview).
I need the card to perform two separate (but not simultaneously on the same card) functions
I need to be able to generate 8 sine waves of independently varying frequencies (from 50 to 70 Hz).
I need to be able to generate 8 square wave of independently varying frquencies (from 1 to 10KHz).
Any examples out there?
Thanks,
A Hancock

A. Hancock,
There is a handy example that illustrates waveform output using the onboard clock located in the DAQmx example folder. Assuming you installing DAQmx to it's default location, it would be located:
C:\Program Files\National Instruments\NI-DAQ\Examples\DAQmx ANSI C\Analog Out\Generate Voltage\Cont Gen Volt Wfm-Int Clk
Simply load a regular waveform into this example. It defaults to a sin wave, you could easily adapt it for a square wave.
Changing the frequency is relatively straightforward, simply make a call to the DAQmxSetSampClkRate function before or while the task is running. This and all of the other functions are detailed in the DAQmx API located here:
"C:\Program Files\National Instruments\NI-DAQ\Docs\cdaqmx.chm"
or under Start > Programs > National Instruments > NI-DAQ > NI-DAQ C Reference Help.
Good luck,
--Paul
Applications Engineering
National Instruments, Inc
http://www.ni.com/support
--Paul Mandeltort
Automotive and Industrial Communications Product Marketing

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Vadi,
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http://www.ni.com/ask

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Interfacing with hardware is seldom easy. That is why I lean toward NI stuff since they have made there stuff resonably simple and they have good supprt.
When interfacing with hardware from others, we have to look fo rthe manufacuer of the hardware to provide enough support to get started.
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If English is not your primary language, plese feel free to post in both English and your native language. We have contributors that can handle most languages so do not let English get in the way.
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6733 multiple frequency waveforms

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