Monday, 15 July 2013

Design of BCD to 7-Segment Driver For Common Anode using When-Else Statement

Design of BCD to 7-Segment Driver For Common Anode using When-Else (Data Flow Modeling Style)-

Output Waveform : BCD to 7 Segment Driver


Program-


-------------------------------------------------------------------------------
--
-- Title       : segment7_driver
-- Design      : vhdl_test
-- Author      : Naresh Singh Dobal
-- Company     : nsd
--
-------------------------------------------------------------------------------
--
-- File        : BCD to 7 Segment Driver using when else.vhd

   

library IEEE;
use IEEE.STD_LOGIC_1164.all;

entity segment7_driver is
     port(
         bcd : in STD_LOGIC_VECTOR(3 downto 0);
         seg7 : out STD_LOGIC_VECTOR(6 downto 0)
         );
end segment7_driver;

architecture segment7_driver_arc of segment7_driver is
begin

    seg7 <= "0000001" when (bcd="0000")else
            "1001111" when (bcd="0001")else
            "0010010" when (bcd="0010")else
            "0000110" when (bcd="0011")else
            "1001100" when (bcd="0100")else
            "0100100" when (bcd="0101")else
            "1100000" when (bcd="0110")else
            "0001111" when (bcd="0111")else
            "0000000" when (bcd="1000")else
            "0001100" when (bcd="1001")else
            "1111111" ;

end segment7_driver_arc;

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