LIBRARY ieee;
USE ieee.std_logic_1164.ALL;
USE ieee.numeric_std.ALL;

ENTITY chiffre IS
    PORT (
        clk : IN STD_LOGIC;
        rst_n : IN STD_LOGIC;
        nb_fronts : IN STD_LOGIC_VECTOR(28 DOWNTO 0);
        n_max : IN STD_LOGIC_VECTOR(3 DOWNTO 0);
        a : OUT STD_LOGIC;
        b : OUT STD_LOGIC;
        c : OUT STD_LOGIC;
        d : OUT STD_LOGIC;
        e : OUT STD_LOGIC;
        f : OUT STD_LOGIC;
        g : OUT STD_LOGIC
    );
END chiffre;

ARCHITECTURE archi OF chiffre IS
    COMPONENT gen_impuls
        PORT (
            clk : IN STD_LOGIC;
            rst_n : IN STD_LOGIC;
            max : IN STD_LOGIC_VECTOR(28 DOWNTO 0);
            impuls : OUT STD_LOGIC
        );
    END COMPONENT;

    COMPONENT compteur_max_ena
        PORT (
            clk : IN STD_LOGIC;
            rst_n : IN STD_LOGIC;
            max : IN STD_LOGIC_VECTOR(3 DOWNTO 0);
            ena : IN STD_LOGIC;
            valeur : OUT STD_LOGIC_VECTOR(3 DOWNTO 0)
        );
    END COMPONENT;

    COMPONENT BCD7seg
        PORT (
            n : IN STD_LOGIC_VECTOR(3 DOWNTO 0);
            a : OUT STD_LOGIC;
            b : OUT STD_LOGIC;
            c : OUT STD_LOGIC;
            d : OUT STD_LOGIC;
            e : OUT STD_LOGIC;
            f : OUT STD_LOGIC;
            g : OUT STD_LOGIC
        );
    END COMPONENT;

    SIGNAL impulsion : STD_LOGIC;
    SIGNAL nombre : STD_LOGIC_VECTOR(3 DOWNTO 0);

BEGIN
    gen_impuls_1 : gen_impuls
    PORT MAP(
        clk => clk,
        rst_n => rst_n,
        max => nb_fronts,
        impuls => impulsion
    );

    compteur_max_ena_1 : compteur_max_ena
    PORT MAP(
        clk => clk,
        rst_n => rst_n,
        max => n_max,
        ena => impulsion,
        valeur => nombre
    );

    BCD7seg_1 : BCD7seg
    PORT MAP(
        n => nombre,
        a => a,
        b => b,
        c => c,
        d => d,
        e => e,
        f => f,
        g => g
    );
END archi;