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Clock 的代码
clock.fit
-- MAX+plus II Compiler Fit File
-- Version 10.2 07/10/2002
-- Compiled: 11/10/2005 10:42:38
-- Copyright (C) 1988-2002 Altera Corporation
-- Any megafunction design, and
clock.hif
HIF003
--
-- Copyright (C) 1988-2002 Altera Corporation
-- Any megafunction design, and related net list (encrypted or decrypted),
-- support information, device programming or simulation file, an
clock.acf
--
-- Copyright (C) 1988-2002 Altera Corporation
-- Any megafunction design, and related net list (encrypted or decrypted),
-- support information, device programming or simulation file, and any
clock.vhd
Library IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
USE IEEE.STD_LOGIC_ARITH.ALL;
ENTITY clock IS
PORT(clk: IN STD_LOGIC; --system clock,1HZ
settime: IN STD