Using The Included Streaming Example; Creating A Labview Project - National Instruments NI 5791R User Manual And Specifications

Using the Included Streaming Example

Complete the following steps to run an example that acquires a waveform using the NI 5791.
1. Connect an antenna to the RX IN connector on the front panel of the NI 5791.
2. Launch LabVIEW.
3. Select File»Open Project.
4. Navigate to
<labview>\examples\instr\ni579x\Streaming
5. Select Streaming.lvproj.
6. In the Project Explorer window, select Rx Streaming (Host).vi under My Computer to
open the host VI. The Open FPGA VI Reference function in this VI uses the NI 7966R as
the FPGA target by default. If you are using an NI FlexRIO FPGA module other than the
NI 7966R, complete the following steps to change to the FPGA VI to support your target.
a) Specify the center frequency in the LO Frequency [Hz] control.
b) On the block diagram, right-click the Open FPGA VI Reference (PXI-7966R)
function and select Configure Open FPGA VI Reference.
c) In the Configure Open FPGA VI Reference dialog box, click the Browse button
next to the Bitfile button.
d) In the Select Bitfile dialog box that opens, select the bitfile for your desired target.
The bitfile name is based on the adapter module, example type, and FPGA module.
e) Click the Select button.
f) Click OK in the Configure Open FPGA VI Reference dialog box.
g) Save the VI.
7. On the front panel, in the RIO Device pull-down menu, select an NI 5791 resource that
corresponds with the target configured in step 6.
8. Configure your measurement.
a) Specify the center frequency in the LO Frequency [Hz] control.
b) Specify the reference level in the Reference Level [dBm] control.
c) Specify the sample rate in the Sample Rate [S/s] control.
9. Click the Run button to run the VI.
10. The VI acquires data and displays the captured waveform on the Power Level, Power
Spectrum, and I & Q Data graphs.
11. Click the STOP button to stop the VI.
12. Close the VI.

Creating a LabVIEW Project

This section explains how to set up your target and create an FPGA VI and host VI for data
communication. This section focuses on proper project configuration, proper CLIP
configuration, and how to access NI 5791 I/O nodes.
Creating a Project
1. Launch LabVIEW, or if LabVIEW is already running, select File»Create Project.
2. In the Create Project dialog box, select LabVIEW FPGA Project and click Finish.
3. Select FlexRIO on My Computer and click Next.
14 | NI 5791R User Manual and Specifications | ni.com
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