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名称:基于FPGA的数字电子钟VHDL代码Quartus仿真(文末获取)
软件:Quartus
语言:VHDL
代码功能:
1)设计一个能显示秒、分、时的24小时数字钟
2)用数码管显示出时,分,秒,复位显示00:00:00
3)通过按键可对时,分,秒进行设置
1. 工程文件
2. 程序文件
3. 程序编译
4. RTL图
5. 仿真图
整体仿真图
分频模块仿真
计时模块
显示模块
部分代码展示:
LIBRARY ieee; USE ieee.std_logic_1164.all; ENTITY Digital_clock IS PORT ( clk_in : IN STD_LOGIC;--50MHz reset : IN STD_LOGIC;--reset key_hour : IN STD_LOGIC;--修改小时 key_minute : IN STD_LOGIC;--修改分钟 key_second : IN STD_LOGIC;--修改miao钟 bit_select : OUT STD_LOGIC_VECTOR(5 DOWNTO 0);--数码管位选 seg_select : OUT STD_LOGIC_VECTOR(7 DOWNTO 0)--数码管段选 ); END Digital_clock; ARCHITECTURE bahave OF Digital_clock IS --模块声明 COMPONENT display IS PORT ( clk : IN STD_LOGIC; hour_time : IN STD_LOGIC_VECTOR(7 DOWNTO 0); minute_time : IN STD_LOGIC_VECTOR(7 DOWNTO 0); second_time : IN STD_LOGIC_VECTOR(7 DOWNTO 0); bit_select : OUT STD_LOGIC_VECTOR(5 DOWNTO 0);--数码管位选 seg_select : OUT STD_LOGIC_VECTOR(7 DOWNTO 0)--数码管段选 ); END COMPONENT; COMPONENT fenping IS PORT ( clk_in : IN STD_LOGIC; clk_1Hz : OUT STD_LOGIC ); END COMPONENT; COMPONENT jishi IS PORT ( clk_in : IN STD_LOGIC; reset : IN STD_LOGIC;--reset key_hour : IN STD_LOGIC;--修改小时 key_minute : IN STD_LOGIC;--修改分钟 key_second : IN STD_LOGIC;--修改miao钟 clk_1Hz : IN STD_LOGIC; hour_time : OUT STD_LOGIC_VECTOR(7 DOWNTO 0); minute_time : OUT STD_LOGIC_VECTOR(7 DOWNTO 0); second_time : OUT STD_LOGIC_VECTOR(7 DOWNTO 0) ); END COMPONENT; SIGNAL hour_time : STD_LOGIC_VECTOR(7 DOWNTO 0); SIGNAL minute_time : STD_LOGIC_VECTOR(7 DOWNTO 0); SIGNAL second_time : STD_LOGIC_VECTOR(7 DOWNTO 0); SIGNAL clk_1Hz : STD_LOGIC; BEGIN --分频到1Hz fenping_Hz : fenping PORT MAP ( clk_in => clk_in, clk_1Hz => clk_1Hz ); --计时模块 i_jishi : jishi PORT MAP ( clk_in => clk_in, reset =>reset, key_hour=> key_hour, key_minute=> key_minute, key_second => key_second,--修改miao钟 clk_1Hz => clk_1Hz, hour_time => hour_time,--时 minute_time => minute_time,--分 second_time => second_time--秒 ); --显示模块 i_display : display PORT MAP ( clk => clk_in, hour_time => hour_time, minute_time => minute_time, second_time => second_time, bit_select =>bit_select,--数码管位选 seg_select =>seg_select--数码管段选 ); END bahave;
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