vhdl real time clock

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library ieee;

use ieee.std_logic_1164.all;

use ieee.std_logic_arith.all;

use ieee.std_logic_unsigned.all;

entity real_time_clock is

port (clk1 : in std_logic;

seconds : out std_logic_vector(5 downto 0);

minutes : out std_logic_vector(5 downto 0);

miliseconds: out std_logic_vector(4 downto 0);

hex0,hex1,hex2,hex3,hex5,hex5 (o to 6)

);

end real_time_clock ;

architecture Behavioral of real_time_clock is

signal sec,min,mili : integer range 0 to 60 :=0;

signal count : integer :=1;

signal clk : std_logic :='0';

begin

seconds <= conv_std_logic_vector(sec,6);

minutes <= conv_std_logic_vector(min,6);

miliseconds<= conv_std_logic_vector(mili,5);

--clk generation.For 100 MHz clock this generates 1 Hz clock.

process(clk1)

begin

if(clk1'event and clk1='1') then

count <=count+1;

if(count = 50000000) then

clk <= not clk;

count <=1;

end if;

end if;

end process;

process(clk) --period of clk is 1 second.

begin

if(clk'event and clk='1') then

sec <= sec+ 1;

if(sec = 59) then

sec<=0;

min <= min + 1;

if(min = 59) then

hour <= hour + 1;

min <= 0;

if(hour = 23) then

hour <= 0;

end if;

end if;

end if;

end if;

end process;

end Behavioral;

-------------------------------------bcd seven segment-----------------------------------------------------------

LIBRARY ieee;

USE ieee.std_logic_1164.all;

ENTITY bcd7seg IS

PORT ( bcd : IN STD_LOGIC_VECTOR(3 DOWNTO 0);

display : OUT STD_LOGIC_VECTOR(0 TO 6));

END bcd7seg;

ARCHITECTURE Behavior OF bcd7seg IS

BEGIN

PROCESS (bcd)

BEGIN

CASE bcd IS

WHEN "0000" => display <= "0000001";

WHEN "0001" => display <= "1001111";

WHEN "0010" => display <= "0010010";

WHEN "0011" => display <= "0000110";

WHEN "0100" => display <= "1001100";

WHEN "0101" => display <= "0100100";

WHEN "0110" => display <= "0100000";

WHEN "0111" => display <= "0001111";

WHEN "1000" => display <= "0000000";

WHEN "1001" => display <= "0000100";

WHEN OTHERS => display <= "1111111";

END CASE;

END PROCESS;

END Behavior;

THIS IS THE CODE..A LITTLE BIT NOT CLEAR, AND HAS STILL TO WORK ON IT. BUT BIGGEST PROBLEM IS THAT I DON'T KNOW HOW TO CONNECT OUTUPUTS TO SEVEN SEGMENT DISPLAY. I DON'T KNOW HOW TO CONNECT FOR EXAMPLE SECONDS TO HEX4,5....AND HOW TO CHANGE MINUTES USING SW7 DONWTO O