decoder.vhd

可以调整时间和设置闹钟的数字钟(VHDL)

library ieee;
use ieee.std_logic_1164.all;
use work.p_alarm.all;
entity decoder is
	port(keypad: in std_logic_vector(9 downto 0);
		value: out t_digital);
end decoder;

architecture art of decoder is
	begin
		with keypad select
			value<= 0 when "0000000001",
					1 when "0000000010",
					2 when "0000000100",
					3 when "0000001000",
					4 when "0000010000",
					5 when "0000100000",
					6 when "0001000000",
					7 when "0010000000",
					8 when "0100000000",
					9 when "1000000000",
					0 when others;
end art;