vdhl code for 7segment display

library ieee;

use ieee.std_logic_1164.all;

Entity seq2 is

Generic ( CLOCK_FREQ : integer := 49999999 );

port (clk : in std_logic;

reset : in std_logic;

PB : in std_logic ;

Tout : inout integer;

x : out bit_vector (6 downto 0) );

end seq2;

architecture Timer of seq2 is

signal clk1 : STD_LOGIC;

signal cntr1s : integer range 0 to CLOCK_FREQ;

begin

process(clk) is begin

if(rising_edge(clk)) then

if(cntr1s=CLOCK_FREQ) then

cntr1s <= 0;

clk1 <= '1';

else

cntr1s <= cntr1s +1;

clk1 <= '0';

end if;

end if;

end process;

process(clk1, reset) is

begin

if(reset='1') then

Tout <= 0;

elsif(rising_edge(clk1)) then

Tout <= Tout +1;

end if;

end process;

end Timer;

architecture structure of seq2 is

constant T1 : integer := 10 ;

constant T2 : integer := T1 + 10;

constant T3 : integer := T2 + 5;

constant T4 : integer := T3 + 20;

constant T5 : integer := T4 + 5;

constant T6 : integer := T5 + 3;

begin

process (clk, PB )

begin

if (PB = '0' ) then

x <= "11001111";

elsif

(PB = '1') then

case Tout is

when T1 => x <= "1001111";

when T2 => x <= "0110010";

when T3 => x <= "0000110";

when T4 => x <= "1001100";

when T5 => x <= "0100100";

when T6 => x <= "01100";

when others => Null;

end case;

end if;

end process;

end structure;

this is the program i wrote but displays everything at the same time without any delay.

Two more questions first.

Why have you got 2 architectures for the seq2 entity? You can only use 1 architecture at a time.

In the testbench you instantiate the seq entity. But the code you posted shows the Seq2 entity. What is the correct code?

Also - please use code tags or post the source files.

library ieee;

use ieee.std_logic_1164.all;

entity seq2_tb is

end seq2_tb;

architecture test of seq2_tb is

signal A: std_logic;

signal s: bit_vector ;

signal B : std_logic;

signal C: std_logic;

begin

instance1: entity work.seq2(Timer)

port map (PB=>A, X=>S ,clk =>B , reset=>C);

S<="1001111" after 10 sec;

S<="0110010" after 15 sec;

S<="0000110" after 20 sec;

S<="1001100" after 25 sec;

S<="0100100" after 30 sec;

S<="01100" after 35 sec;

end test;

Another test bench i wrote.

Because you have only instantiated the timer architecture, there is no switch to select which character.

You can only use 1 architecture when you instantiate a component. You need to combine the architectures.