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Altera_Forum's avatar
Altera_Forum
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12 years ago

How to measure distance between two data

really i have a problem for measure the distance between these data as the following.could i can make it in vhdl from enter this data to vhdl to measure distance between them. d(s1,s2)=(1+1+0+1+1)...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

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well just a clocked process will do. 


process(clk)
begin
if rising_edge(clk) then
   if clear = '1' then
       sum <= accum;
       accum <= (others => '0');
   else
       accum <= accum +distance;
   end if;
end if;
end process;

assuming distance is an incoming stream of samples, one per clock period. you control the clear signal using a counter for your samples.

--- Quote End ---

sorry kaz . i didn't undersatand that .if you remember that distance is output ,i make a signal instead of output but it every clk increment the accum.

could you plz illustrate.