用VHDL语言实现四人智力竞赛抢答器的设计,高分寻高人解答

用VHDL语言实现四人智力竞赛抢答器的设计,高分寻高人解答

各模块VHDL源代码
1、抢答鉴别模块FENG的VHDL源程序
--feng.vhd
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY FENG IS
PORT(CP,CLR:IN STD_LOGIC;
Q :OUT STD_LOGIC);
END FENG;
ARCHITECTURE FENG_ARC OF FENG IS
BEGIN
PROCESS(CP,CLR)
BEGIN
IF CLR='0'THEN
Q<='0';
ELSIF CP'EVENT AND CP='0'THEN
Q<='1';
END IF;
END PROCESS;
END FENG_ARC;

2、片选信号产生模块SEL的VHDL源程序
--sel.vhd
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY SEL IS
PORT(CLK:IN STD_LOGIC;
a:OUT INTEGER RANGE 0 TO 7);
END SEL;
ARCHITECTURE SEL_ARC OF SEL IS 片选信号产生模块SEL
BEGIN
PROCESS(CLK)
VARIABLE AA:INTEGER RANGE 0 TO 7;
BEGIN
IF CLK'EVENT AND CLK='1'THEN
AA:=AA+1;
END IF;
A<=AA;
END PROCESS;
END SEL_ARC;

3、锁存器模块LOCKB的VHDL源程序
-lockb.vhd
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY LOCKB IS
PORT(D1,D2,D3,D4:IN STD_LOGIC;
CLK,CLR:IN STD_LOGIC;
Q1,Q2,Q3,Q4,ALM:OUT STD_LOGIC);
END LOCKB;
ARCHITECTURE LOCK_ARC OF LOCKB IS
BEGIN
PROCESS(CLK)
BEGIN
IF CLR='0'THEN
Q1<='0';
Q2<='0';
Q3<='0';
Q4<='0';
ALM<='0'; 模块LOCKB
ELSIF CLK'EVENT AND CLK='1'THEN
Q1<=D1;
Q2<=D2;
Q3<=D3;
Q4<=D4;
ALM<='1';
END IF;
END PROCESS;
END LOCK_ARC;

4、转换模块CH41A的VHDL源程序
--ch41a..vhd
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY CH41A IS
PORT(D1,D2,D3,D4:IN STD_LOGIC;
Q:OUT STD_LOGIC_VECTOR(3 DOWNTO 0));
END CH41A;
ARCHITECTURE CH41_ARC OF CH41A IS 转换模块CH41A
BEGIN
PROCESS(D1,D2,D3,D4)
VARIABLE TMP:STD_LOGIC_VECTOR(3 DOWNTO 0);
BEGIN
TMP:=D1&D2&D3&D4;
CASE TMP IS
WHEN "0111"=>Q<="0001";
WHEN "1011"=>Q<="0010";
WHEN "1101"=>Q<="0011";
WHEN "1110"=>Q<="0100";
WHEN OTHERS=>Q<="1111";
END CASE;
END PROCESS;
END CH41_ARC;

5、3选1模块CH31A的VHDL源程序
--ch31a.vhd
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY CH31A IS
PORT(SEL:IN STD_LOGIC_VECTOR(2 DOWNTO 0);
D1,D2,D3:IN STD_LOGIC_VECTOR(3 DOWNTO 0);
Q : OUT STD_LOGIC_VECTOR(3 DOWNTO 0));
END CH31A;
ARCHITECTURE CH31_ARC OF CH31A IS
BEGIN
PROCESS(SEL,D1,D2,D3)
BEGIN
CASE SEL IS
WHEN "000"=>Q<=D1;
WHEN "001"=>Q<=D2;
WHEN "111"=>Q<=D3;
WHEN OTHERS=>Q<="1111";
END CASE;
END PROCESS;
END CH31_ARC;

6、倒计时模块COUNT的VHDL源程序
倒计时模块COUNT如图16-7所示，该模块实现答题时间的倒计时，在计满100s后送出声音提示。
--count.vhd
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
ENTITY COUNT IS
PORT(CLK,EN:IN STD_LOGIC; 倒计时 模块COUNT
H,L:OUT STD_LOGIC_VECTOR(3 DOWNTO 0);
SOUND:OUT STD_LOGIC);
END COUNT;
ARCHITECTURE COUNT_ARC OF COUNT IS
BEGIN
PROCESS(CLK,EN)
VARIABLE HH,LL:STD_LOGIC_VECTOR(3 DOWNTO 0);
BEGIN
IF CLK'EVENT AND CLK='1'THEN
IF EN='1'THEN
IF LL=0 AND HH=0 THEN
SOUND<='1';
ELSIF LL=0 THEN
LL:="1001";
HH:=HH-1;
ELSE
LL:=LL-1;
END IF;
ELSE
SOUND<='0';
HH:="1001";
LL:="1001";
END IF;
END IF;
H<=HH;
L<=LL;
END PROCESS;
END COUNT_ARC;

7、显示译码模块DISP的VHDL源程序
--disp.vhd
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY DISP IS 显示译码模块DISP
PORT(D:IN STD_LOGIC_VECTOR(3 DOWNTO 0);
Q:OUT STD_LOGIC_VECTOR(6 DOWNTO 0));
END DISP;
ARCHITECTURE DISP_ARC OF DISP IS
BEGIN
PROCESS(D)
BEGIN
CASE D IS
WHEN"0000"=>Q<="0111111";
WHEN"0001"=>Q<="0000110";
WHEN"0010"=>Q<="1011011";
WHEN"0011"=>Q<="1001111";
WHEN"0100"=>Q<="1100110";
WHEN"0101"=>Q<="1101101";
WHEN"0110"=>Q<="1111101";
WHEN"0111"=>Q<="0100111";
WHEN"1000"=>Q<="1111111";
WHEN"1001"=>Q<="1101111";
WHEN OTHERS=>Q<="0000000";
END CASE;
END PROCESS;
END DISP_ARC;

哦....这样啊

自己不去做，叫人做永远都不会。只有动手过，才有其意义

library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;
use ieee.std_logic_unsigned.all;
--------------------------------------------------------------------
entity exp19 is
port( Clk : in std_logic; --时钟信号
Rst : in std_logic; --复位信号
Kr : in std_logic_vector(3 downto 0); --键盘行
Kc : buffer std_logic_vector(3 downto 0); --键盘列
SPK : out std_logic; --扬声器输出
KEY_State : out std_logic; --按键指示
Door : buffer std_logic; --门状态
Display : out std_logic_vector(7 downto 0); --七段码管显示
SEG_SEL : buffer std_logic_vector(2 downto 0)); --七段码管片选
end exp19;
--------------------------------------------------------------------
architecture behave of exp19 is
signal keyr,keyc : std_logic_vector(3 downto 0);
signal kcount : std_logic_vector(2 downto 0);
signal kflag1,kflag2 : std_logic;
signal buff1,buff2,buff3,buff4,buff5,buff6 : integer range 0 to 15;
signal push_num : integer range 0 to 15; --按键次数
signal Disp_Temp : integer range 0 to 15;
signal Disp_Decode : std_logic_vector(7 downto 0);
signal SEC1,SEC10 : integer range 0 to 9;

signal Clk_Count1 : std_logic_vector(3 downto 0); --1KHz时钟分频计数器
signal Clk_Count2 : std_logic_vector(9 downto 0); --2Hz时钟分频计数器
signal Clk1KHz : std_logic;
signal Clk2Hz : std_logic;
signal Clk1Hz : std_logic;

signal Error_Num : integer range 0 to 3;
signal Error_Flag : std_logic;
signal Error_Count : std_logic_vector(2 downto 0);
signal Music_Count : std_logic_vector(2 downto 0);
begin
process(Clk)
begin
if(Clk'event and Clk='1') then
if(Clk_Count1<10) then
Clk_Count1<=Clk_Count1+1;
else
Clk_Count1<="0001";
end if;
end if;
end process;
Clk1KHz<=Clk_Count1(2);
process(Clk1KHz)
begin
if(Clk1KHz'event and Clk1KHz='1') then
if(Clk_Count2<1000) then
Clk_Count2<=Clk_Count2+1;
else
Clk_Count2<="0000000001";
end if;
end if;
end process;
Clk2Hz<=Clk_Count2(9);

process(Clk2Hz)
begin
if(Clk2Hz'event and Clk2Hz='1') then
Clk1Hz<=not Clk1Hz;
end if;
end process;

process(Clk1KHz) --扫描键盘
begin
if(Clk1KHz'event and Clk1KHz='1') then
if(Kr="希望 你找到答案