?? led7.vhd.bak
字號(hào):
library ieee;
use ieee.std_logic_1164.all;
entity led7 is
port( ledin : in std_logic_vector(3 downto 0);
ledout : out std_logic_vector(6 downto 0);
clk : in std_logic);
end led7;
architecture behav of led7 is
begin
com1:process(clk)
begin
if (clk'event and clk='1') then
case ledin is
when "0000" => ledout<="1000000";--0
when "0001" => ledout<="1111001";--1
when "0010" => ledout<="0100100";--2
when "0011" => ledout<="0110000";--3
when "0100" => ledout<="0011001";--4
when "0101" => ledout<="0010010";--5
when "0110" => ledout<="0000010";--6
when "0111" => ledout<="1111000";--7
when "1000" => ledout<="0000000";--8
when "1001" => ledout<="0010000";--9
when others => ledout<="1111111";--nothing
end case;
end if;
end process com1;
end behav;
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