名稱：4位密碼鎖可修改密碼及錯(cuò)誤報(bào)警（代碼在文末付費(fèi)下載）

軟件：Quartus

語(yǔ)言：VHDL

要求：

按鍵包括，0~9，確認(rèn)，重置，修改，密碼4位，

要能設(shè)定密碼，重置密碼，如果密碼輸入正確會(huì)亮綠燈，

連續(xù)三次輸入錯(cuò)誤會(huì)報(bào)警。

演示視頻：

部分代碼展示

LIBRARY?ieee;
???USE?ieee.std_logic_1164.all;
--按鍵包括，0~9，確認(rèn)，重置，修改,密碼4位
--要能設(shè)定密碼，重置密碼，如果密碼輸入正確會(huì)亮綠燈，
ENTITY?mimasuo?IS
???PORT?(
??????clk??????????:?IN?STD_LOGIC;--時(shí)鐘
??????--數(shù)字輸入按鍵
??????key_0????????:?IN?STD_LOGIC;
??????key_1????????:?IN?STD_LOGIC;
??????key_2????????:?IN?STD_LOGIC;
??????key_3????????:?IN?STD_LOGIC;
??????key_4????????:?IN?STD_LOGIC;
??????key_5????????:?IN?STD_LOGIC;
??????key_6????????:?IN?STD_LOGIC;
??????key_7????????:?IN?STD_LOGIC;
??????key_8????????:?IN?STD_LOGIC;
??????key_9????????:?IN?STD_LOGIC;
??????
??????clear_key????:?IN?STD_LOGIC;--4-清除輸入
??????confirm_key??:?IN?STD_LOGIC;--3-確認(rèn)鍵
??????reset????????:?IN?STD_LOGIC;--2-復(fù)位
??????modify_key???:?IN?STD_LOGIC;--1--修改
??????lock_up_key??:?IN?STD_LOGIC;--0--上鎖
??????
??????alarm????????:?OUT?STD_LOGIC;--報(bào)警，紅燈
??????led_open?????:?OUT?STD_LOGIC;--開(kāi)鎖，綠燈,當(dāng)為低電平時(shí)，對(duì)應(yīng)的LED燈點(diǎn)亮
??????led_lock?????:?OUT?STD_LOGIC;--關(guān)鎖
??????--數(shù)碼管?
??????bit_select???:?OUT?STD_LOGIC_VECTOR(5?DOWNTO?0);--數(shù)碼管位選
??????seg_select???:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0)--數(shù)碼管段選
???);
END?mimasuo;
ARCHITECTURE?behave?OF?mimasuo?IS
--模塊例化
???COMPONENT?alarm_on?IS
??????PORT?(
?????????clk??????????:?IN?STD_LOGIC;
?????????current_state?:?IN?STD_LOGIC_VECTOR(2?DOWNTO?0);
?????????alarm????????:?OUT?STD_LOGIC
??????);
???END?COMPONENT;
???
???COMPONENT?reset_password?IS
??????PORT?(
?????????clk??????????:?IN?STD_LOGIC;
?????????password?????:?IN?STD_LOGIC_VECTOR(15?DOWNTO?0);
?????????correct_password?:?OUT?STD_LOGIC_VECTOR(15?DOWNTO?0);
?????????confirm??????:?IN?STD_LOGIC;
?????????current_state?:?IN?STD_LOGIC_VECTOR(2?DOWNTO?0)
??????);
???END?COMPONENT;

設(shè)計(jì)文檔(文檔點(diǎn)擊可下載)：

1. 工程文件

2. 程序文件

3. 程序編譯

4. RTL圖

5. 仿真圖

5.1 alarm模塊仿真

5.2 display模塊仿真

5.3 key_jitter模塊仿真

5.4 mima_input模塊仿真

5.5 mimasuo_ctrl模塊仿真

5.6 reset_password模塊仿真

點(diǎn)擊鏈接獲取代碼文件：http://www.hdlcode.com/index.php?m=home&c=View&a=index&aid=168