Video Learning Series : Interfacing LED & Switch ::: Task - 3 with Codes & Video

 Video Learning Series : Interfacing LED & Switch ::: Task - 3

Click Here For Video ::: Video Learning Series (vhdlbynaresh.blogspot.com)

Video Link -
https://www.youtube.com/watch?v=P5hYdB_n6xo&list=UU91Msf7ixvSGlnx_RsKTd7Q


TASK 3  ::::    Interfacing LED & Switch With Cyclone II FPGA Device. -
Description -    LED's Starts Blinking when Switch is pressed & Remains same as it's last update when Switch is released.
In our video we take 8 LED's as output packed in 7- segment package.


VHDL Code -


library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;
use ieee.std_logic_unsigned.all;

entity sl3 is
port (clk : in std_logic;
din : in std_logic;
dout : out std_logic_vector (7 downto 0));
end sl3;

architecture sl2_arc of sl3 is
begin
    p0 : process (clk,din) is
    variable m : std_logic_vector (24 downto 0) := (others=>'0');
    begin
        if (rising_edge (clk)) then
            m := m + 1;
        end if;
        if (din='0') then
            case m(24) is
                when '0' => dout <= "00000000";
                when others => dout <= "11111111";
            end case;
        end if;
    end process p0;
       
end sl2_arc;




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Best Regard //

Naresh Singh Dobal

nsdobal@gmail.com