FPGA Implementation of a LUT-based Input Processing
应用文章
Introduction
The Keysight Technologies, Inc. M3602A FPGA Design Environment simplifies the development of custom processing functions for the following PXIe modules: M3100A, M3102A, M3201A, M3202A, M3300A, M3302A with -FP1 (FPGA Programming) option enabled and one of the options -K32 (Kintex-7 K325T FPGA) or -K41 (Kintex-7 K410T FPGA) for the logic.
The user-friendly graphical environment simplifies the development of custom DSP for the FPGA device enabling special modes of operation or new control structures.
This application note demonstrates the FPGA capabilities of the Keysight M3100A and M3300A PXIe digitizer modules with -FP1 option enabled to perform signal transformation using a lookup table (LUT). The LUT is filled with the first-order Taylor’s polynomial coefficients (y = ax + b) to implement a piecewise first-order linear approximation of any nonlinear function.
This demo runs on the following Keysight PXIe modular digitizers with option -FP1 (enabled FPGA programming): M3100A (100 MS/s, 14 bits, 100 MHz) and M3300A (digitizer part of the AWG + digitizer combo).