FPGA Digital Filter - Labview-fpga Typing CST Test
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FPGA Digital Filter — Labview-fpga Code
Implements a simple moving average filter in FPGA VI.
// FPGA VI pseudo-representation
int buffer[4] = {0};
Loop FPGAClock
{
int input = ReadFPGAInput("In");
buffer[0] = buffer[1]; buffer[1] = buffer[2]; buffer[2] = buffer[3]; buffer[3] = input;
int avg = (buffer[0]+buffer[1]+buffer[2]+buffer[3])/4;
WriteFPGAOutput("FilteredOut", avg);
}Labview-fpga Language Guide
LabVIEW FPGA is a National Instruments platform that allows developers to design and deploy custom FPGA-based hardware logic using graphical programming (G), enabling high-performance, deterministic, and parallel execution for instrumentation, control, and embedded systems.
Primary Use Cases
- ▸High-speed data acquisition
- ▸Deterministic control loops
- ▸Custom instrumentation and test equipment
- ▸Real-time signal processing
- ▸Embedded control with CompactRIO and FlexRIO
Notable Features
- ▸Graphical programming for FPGA
- ▸Hardware-timed deterministic execution
- ▸Integration with LabVIEW host VIs
- ▸Support for DMA FIFO and registers
- ▸Simulation and debugging tools for FPGA
Origin & Creator
Developed by National Instruments (NI), USA-leader in test, measurement, and automation solutions.
Industrial Note
Extensively used in automated test equipment (ATE), aerospace, defense, particle accelerators, high-speed data acquisition, embedded control systems, and real-time signal processing.