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Altera_Forum's avatar
Altera_Forum
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9 years ago

Write a lot of data

I'm considering two options. The first: case (address) is when X"00500" => byte0 <= data; when X"00501" => byte1 <= data; when X"00502" => byte2 <= data; -- and so on end case;...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

address is 16 bit wide. I meant 0-1023 but actually it'll be about 700 registers.

I suppose the second option faster (it's RAM implementation) but then I should allocate 700 16-bit registers. Waste of memory. Not all of my variables 16-bit wide. In the first option i could write (considering data is 16-bit wide) 


case (address) is
    when X"00500" => byte <= data;
    when X"00501" => bit <= data(0);
    when X"00502" => word <= data;
 end case;

I use MAX10. For now I have enough LEs. So my main concern is a speed.