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Altera_Forum's avatar
Altera_Forum
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17 years ago

simulink to hdl RAM

lets say i have series of 50 outputs from my simulink model and now i would liketo add in HDL import (vhdl module) to perfome some manipulation onto those 50 outputs. so first thing is that i ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

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...