FPGA Math & Analysis VIs and Functions

LabVIEW 2009 FPGA Module Help

Edition Date: June 2009

Part Number: 371599E-01

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Owning Palette: FPGA Module VIs and Functions

Requires: FPGA Module. This topic might not match its corresponding palette in LabVIEW depending on your operating system, licensed product(s), and target.

Use the FPGA Math & Analysis VIs and Functions to perform math, analysis, and control operations in FPGA VIs.

Note This palette is specific to FPGA targets.

Refer to IPNet for additional FPGA functions and example IP.

Palette Object	Description
Analog Period Measurement	Calculates the period of an evenly sampled periodic signal using threshold crossing detection.
Butterworth Filter	Filters one or more input signals using a lowpass or highpass IIR Butterworth filter.
DC and RMS Measurements	Calculates the DC (Mean) and/or RMS values of an input signal. You also can use this VI to calculate the intermediate Sum, Mean Square, or Square Sum values in order to save FPGA resources.
FFT	Computes the Fast Fourier Transform (FFT) point by point.
Notch Filter	Attenuates a specific frequency band in one or more input signals using a second order IIR notch filter.
Rational Resampler	Provides a rational resampling filter, which updates the input sample rate by an L/M factor where L is an interpolation factor and M is a decimation factor.
Scaled Window	Minimizes spectral leakage associated with truncated waveforms. This Express VI scales the windowed time-domain signal so that when a LabVIEW object computes the power or amplitude spectrum of the windowed waveform, all windows provide the same level within the accuracy constraints of the output wavelength.

Subpalette	Description
Control VIs	Use the Control VIs in FPGA VIs to create control applications for FPGA targets.
Generation VIs	Use the Generation VIs in FPGA VIs to generate signals.
High Throughput Math Functions	Use the High Throughput Math functions to achieve high throughput rates when performing fixed-point math and analysis on FPGA targets.
Utilities VIs	Use the Utilities VIs in FPGA VIs to perform various tasks such as detecting state changes of Boolean inputs, detecting zero crossings, delaying the input value, limiting the valid range of a signal, and performing linear interpolation.