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Altera_Forum
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11 years ago

hi! Understanding a coding (counter), help

entity counter is generic ( n : natural := 4; ); port ( clock : in std_logic; reset_n : in std_logic; q : out std_logic_vector(n-1 downto 0) ); end entity; architecture rtl of co...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Hi, On the 2nd part your are *completely* wrong : you can't use the same entity in the description of THIS entity, It is equivalent to saying "A car is made with a car",

I recommand port mapping by names, not by position, some thing like this 


my_counter : entity counter
   generic map ( n => 8, k => 4)
   port map ( 
      clock => KEY(1),
      reset_n => KEY(0),
      Q => Q_int,
      SW => ???,
      KEY => ???,
      LEDR => ???
   );
LEDR <= Q_int;

I think that you only have to modify the "rtl" architecture, that what you have done.