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NIPXIE7965R Datasheet(PDF) 3 Page - National Instruments Corporation |
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NIPXIE7965R Datasheet(HTML) 3 Page - National Instruments Corporation |
3 / 14 page 3/14 www.ni.com NI FlexRIO FPGA modules at rates greater than 800 MB/s for additional processing and I/O integration. You can also stream to and from select PXI Express NI modular instruments for an even greater variety of I/O. PXI NI FlexRIO FPGA modules feature Xilinx Virtex-5 LX FPGAs with up to 128 MB of onboard DRAM, which you can access at bandwidths up to 1.6 GB/s. They feature all the benefits of the PXI platform including synchronization, triggering, and high-speed data transfer to and from their host. Table 4. PXI and PXI Express FPGA Module Comparison National Instruments and third parties offer NI FlexRIO adapter modules, and you can build your own adapter modules using the NI FlexRIO Adapter Module Development Kit (MDK). With custom adapter modules, you can implement the exact analog and digital I/O your application requires, along with graphical FPGA programming provided by LabVIEW. View a current list of NI and third-party adapter modules at . This ability to easily create high-bandwidth P2P data streams helps provide scalable signal ni.com/flexrio processing and I/O integration. LabVIEW FPGA With the high-level graphical programming capabilities of LabVIEW FPGA, programming for the NI 5751 is far simpler than low-level HDL programming. Acquiring samples from one NI FlexRIO digitizer adapter module's analog-to-digital converter at its configured rate and placing the data into an FPGA FIFO is depicted in Figure 3. Figure 3. LabVIEW FPGA Code for Acquiring Data from an NI FlexRIO Digitizer Adapter Module From this point, you may implement your own processing, filtering, fast Fourier transform (FFT), or control. Figure 4 shows custom demodulation using IP from the FPGA RF Communications Library on . ni.com/labs Figure 4. LabVIEW FPGA Code for Demodulating and Decoding I and Q Signals after 4X Decimation For implementing a real-time spectrum analyzer, Figure 5 shows code that performs windowing, conversion to the frequency domain, comparison against a frequency mask, and assertion of a trigger when that mask is exceeded. |
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