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The LUT has an address port.... and you simply use that to control what value you want to read out from the LUT... for example, if I want to read out the very first element in the LUT (index of 0), then I would simply pass a zero to that address port...
Similarly if I want the 100th element, then I would pass 99 (# of element - 1, because address starts at zero) to the address port...
Inside the LUT GUI, you have an option to specify the number of bits to use for the address... that number of bits control the number of data elements you can store in your LUT.... specifically, you can store up to 2^(address bit) - 1 of elements in the LUT...
Hope this clears it up...
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Hello wronghorizon, I have the same problem as long as store info in DE2 borad concern.
I have a file with 2^18 elements and 16 bit data, so i wonder if using LUT is quiete enoguh and correcto to do or I should stored that info in any RAM memory (SDRAM for instance) of the DE2 borad. If so, cna I do this form simulink usign DSP builder??
Please let me know
Thanks!!!
ismagine
Honored Contributor
