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storing convolution coeeff's Xilinx V2 8000

I would like to store several hundred convolution coefficients for a real time computer vision core using Xilinx's V2 8000 series FPGA. does anyone know the best way to do this? How many logic cells / block RAM does storing many constant coeff's take? Is there anyway to estimate the number of LC/BRAM needed to store, say X coeff's. Would it be better to store the coeff's in some off chip memory (like SRAM)? Also is there a way to import these coefficients into the VHDL using some kind of automated process (i suppose i could write a text parser in C to import all the coefficients into the VHDL before synthesis, but maybe there is a tool to do this kind of thing)? To have to type out several hundred numbers every time I wished to change the filter is ridiculous...

thanks

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Geoffrey Wall
Masters Student in Electrical/Computer Engineering
Florida State University, FAMU/FSU College of Engineering
wallge@eng.fsu.edu
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ECE Machine Intelligence Lab
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http://cavis.fsu.edu/
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Reply to
Geoffrey Wall
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If you have enough RAM on chip, that's the obvious simple way to do it. Should be easy to figure out how much you need. Just compute how many bits you need and round up the width to fit an integer number of chips. Round up more if your size isn't a power of two and such.

search for data2bram

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Reply to
Hal Murray

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