结合ChatGPT部分内容参考建议：
以下是圆形指示灯的VHDL设计：
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.NUMERIC_STD.ALL;
entity traffic_light_circle is
Port ( clk : in STD_LOGIC;
reset : in STD_LOGIC;
east_west_left_turn_complete : in STD_LOGIC;
circle_red : out STD_LOGIC;
circle_yellow : out STD_LOGIC;
circle_green : out STD_LOGIC;
left_turn_allow : out STD_LOGIC);
end traffic_light_circle;
architecture Behavioral of traffic_light_circle is
type state_type is (red, yellow1, yellow2, green, yellow3);
signal state : state_type := red;
signal counter : unsigned(5 downto 0) := (others => '0');
signal left_turn_allow_sig : STD_LOGIC := '0';
begin
process(clk, reset)
begin
if reset = '1' then
state <= red;
counter <= (others => '0');
circle_red <= '1';
circle_yellow <= '0';
circle_green <= '0';
left_turn_allow <= '0';
left_turn_allow_sig <= '0';
elsif rising_edge(clk) then
case state is
when red =>
circle_red <= '1';
circle_yellow <= '0';
circle_green <= '0';
left_turn_allow <= left_turn_allow_sig;
if east_west_left_turn_complete = '1' then
counter <= (others => '0');
state <= yellow1;
end if;
when yellow1 =>
circle_red <= '0';
circle_yellow <= '1';
circle_green <= '0';
left_turn_allow <= left_turn_allow_sig;
if counter = 2 then
counter <= (others => '0');
state <= yellow2;
else
counter <= counter + 1;
end if;
when yellow2 =>
circle_red <= '0';
circle_yellow <= '1';
circle_green <= '0';
left_turn_allow <= left_turn_allow_sig;
if counter = 2 then
counter <= (others => '0');
state <= green;
else
counter <= counter + 1;
end if;
when green =>
circle_red <= '0';
circle_yellow <= '0';
circle_green <= '1';
left_turn_allow <= '0';
if counter = 23 then
counter <= (others => '0');
state <= yellow3;
else
counter <= counter + 1;
end if;
when yellow3 =>
circle_red <= '0';
circle_yellow <= '1';
circle_green <= '0';
left_turn_allow <= '0';
if counter = 2 then
counter <= (others => '0');
state <= red;
else
counter <= counter + 1;
end if;
end case;
end if;
end process;
process(clk, reset)
begin
if reset = '1' then
left_turn_allow_sig <= '0';
elsif rising_edge(clk) then
if state = green and counter = 0 then
left_turn_allow_sig <= '1';
else
left_turn_allow_sig <= '0';
end if;
end if;
end process;
end Behavioral;
左转箭头灯的VHDL设计：
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.NUMERIC_STD.ALL;
entity traffic_light_left_turn is
Port ( clk : in STD_LOGIC;
reset : in STD_LOGIC;
left_turn_allow : in STD_LOGIC;
left_turn_complete : out STD_LOGIC;
arrow_red : out STD_LOGIC;
arrow_green : out STD_LOGIC);
end traffic_light_left_turn;
architecture Behavioral of traffic_light_left_turn is
type state_type is (red, green);
signal state : state_type := red;
signal counter : unsigned(4 downto 0) := (others => '0');
begin
process(clk, reset)
begin
if reset = '1' then
state <= red;
counter <= (others => '0');
arrow_red <= '1';
arrow_green <= '0';
left_turn_complete <= '0';
elsif rising_edge(clk) then
case state is
when red =>
arrow_red <= '1';
arrow_green <= '0';
left_turn_complete <= '0';
if left_turn_allow = '1' then
counter <= (others => '0');
state <= green;
end if;
when green =>
arrow_red <= '0';
arrow_green <= '1';
left_turn_complete <= '0';
if counter = 14 then
counter <= (others => '0');
state <= red;
left_turn_complete <= '1';
else
counter <= counter + 1;
end if;
end case;
end if;
end process;
end Behavioral;
以下是整体的VHDL设计：
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.NUMERIC_STD.ALL;
entity traffic_light_controller is
Port ( clk : in STD_LOGIC;
reset : in STD_LOGIC;
east_west_left_turn_complete : in STD_LOGIC;
circle_red : out STD_LOGIC;
circle_yellow : out STD_LOGIC;
circle_green : out STD_LOGIC;
left_turn_allow : out STD_LOGIC;
left_turn_complete : out STD_LOGIC;
arrow_red : out STD_LOGIC;
arrow_green : out STD_LOGIC;
control_button : in STD_LOGIC);
end traffic_light_controller;
architecture Behavioral of traffic_light_controller is
signal circle_red_sig : STD_LOGIC := '1';
signal circle_yellow_sig : STD_LOGIC := '0';
signal circle_green_sig : STD_LOGIC := '0';
signal left_turn_allow_sig : STD_LOGIC := '0';
signal left_turn_complete_sig : STD_LOGIC := '0';
signal arrow_red_sig : STD_LOGIC := '1';
signal arrow_green_sig : STD_LOGIC := '0';
component traffic_light_circle is
Port ( clk : in STD_LOGIC;
reset : in STD_LOGIC;
east_west_left_turn_complete : in STD_LOGIC;
circle_red : out STD_LOGIC;
circle_yellow : out STD_LOGIC;
circle_green : out STD_LOGIC;
left_turn_allow : out STD_LOGIC);
end component;
component traffic_light_left_turn is
Port ( clk : in STD_LOGIC;
reset : in STD_LOGIC;
left_turn_allow : in STD_LOGIC;
left_turn_complete : out STD_LOGIC;
arrow_red : out STD_LOGIC;
arrow_green : out STD_LOGIC);
end component;
begin
circle_controller : traffic_light_circle
port map (clk => clk,
reset => reset,
east_west_left_turn_complete => east_west_left_turn_complete,
circle_red => circle_red_sig,
circle_yellow => circle_yellow_sig,
circle_green => circle_green_sig,
left_turn_allow => left_turn_allow_sig);
arrow_controller : traffic_light_left_turn
port map (clk => clk,
reset => reset,
left_turn_allow => left_turn_allow_sig,
left_turn_complete => left_turn_complete_sig,
arrow_red => arrow_red_sig,
arrow_green => arrow_green_sig);
process(clk, reset)
begin
if reset = '1' then
circle_red_sig <= '1';
circle_yellow_sig <= '0';
circle_green_sig <= '0';
left_turn_allow_sig <= '0';
left_turn_complete_sig <= '0';
arrow_red_sig <= '1';
arrow_green_sig <= '0';
elsif rising_edge(clk) then
if control_button = '1' then
circle_red_sig <= '1';
circle_yellow_sig <= '0';
circle_green_sig <= '0';
left_turn_allow_sig <= '0';
left_turn_complete_sig <= '0';
arrow_red_sig <= '1';
arrow_green_sig <= '0';
else
circle_red_sig <= circle_red_sig;
circle_yellow_sig <= circle_yellow_sig;
circle_green_sig <= circle_green_sig;
left_turn_allow_sig <= left_turn_allow_sig;
left_turn_complete_sig <= left_turn_complete_sig;
arrow_red_sig <= arrow_red_sig;
arrow_green_sig <= arrow_green_sig;
end if;
end if;
end process;
circle_red <= circle_red_sig;
circle_yellow <= circle_yellow_sig;
circle_green <= circle_green_sig;
left_turn_allow <=
答案参考ChatGPT Plus版，整理汇总。希望能帮助你解决问题
下面是一个基于VHDL的交通灯控制器设计，包括圆形指示灯、左转箭头灯和交通管制按钮的模块。请注意，这只是一个基本的示例，你可能需要根据具体的需求进行适当的修改和扩展。
-- 圆形指示灯模块
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity CircularLight is
port (
clk: in std_logic;
reset: in std_logic;
leftTurnComplete: in std_logic; -- 左转完成信号
circularLight: out std_logic_vector(2 downto 0) -- 圆形指示灯输出（红、黄、绿）
);
end entity CircularLight;
architecture Behavioral of CircularLight is
signal counter: unsigned(1 downto 0) := (others => '0'); -- 用于计数闪烁次数
signal currentState: std_logic_vector(2 downto 0) := "001"; -- 当前状态（红灯）
constant yellowBlinkCount: unsigned(1 downto 0) := "10"; -- 黄灯闪烁次数
constant greenLightDuration: unsigned(5 downto 0) := "110000"; -- 绿灯持续时间（24秒）
begin
process (clk, reset)
begin
if reset = '1' then
counter <= (others => '0');
currentState <= "001";
circularLight <= currentState;
elsif rising_edge(clk) then
if currentState = "001" and leftTurnComplete = '1' then -- 收到左转完成信号
counter <= counter + 1;
if counter = yellowBlinkCount then
currentState <= "010"; -- 黄灯
counter <= (others => '0');
end if;
elsif currentState = "010" then
counter <= counter + 1;
if counter = yellowBlinkCount then
currentState <= "011"; -- 绿灯
counter <= (others => '0');
end if;
elsif currentState = "011" then
counter <= counter + 1;
if counter = yellowBlinkCount then
currentState <= "001"; -- 红灯
counter <= (others => '0');
end if;
elsif currentState = "100" then -- 在绿灯状态下不响应左转完成信号
currentState <= "101"; -- 黄灯
elsif currentState = "101" then
counter <= counter + 1;
if counter = yellowBlinkCount then
currentState <= "001"; -- 红灯
counter <= (others => '0');
end if;
end if;
circularLight <= currentState;
end if;
end process;
end architecture Behavioral;
-- 左转箭头灯模块
entity LeftTurnLight is
port (
clk: in std_logic;
reset: in std_logic;
leftTurnAllow: in std_logic; -- 左转允许信号
leftTurnLight: out std_logic -- 左转箭头灯输出
);
end entity LeftTurnLight;
architecture Behavioral of LeftTurnLight is
signal counter: unsigned(3 downto
0) := (others => '0'); -- 用于计时
signal currentState: std_logic := '0'; -- 当前状态（红灯）
constant greenLightDuration: unsigned(3 downto 0) := "1111"; -- 绿灯持续时间（15秒）
begin
process (clk, reset)
begin
if reset = '1' then
counter <= (others => '0');
currentState <= '0';
leftTurnLight <= currentState;
elsif rising_edge(clk) then
if currentState = '0' and leftTurnAllow = '1' then -- 收到左转允许信号
currentState <= '1'; -- 绿灯
counter <= (others => '0');
elsif currentState = '1' then
counter <= counter + 1;
if counter = greenLightDuration then
currentState <= '0'; -- 红灯
counter <= (others => '0');
end if;
end if;
leftTurnLight <= currentState;
end if;
end process;
end architecture Behavioral;
-- 交通管制按钮模块
entity TrafficControlButton is
port (
reset: in std_logic;
button: in std_logic;
trafficLights: out std_logic_vector(5 downto 0) -- 信号灯输出（红、黄、绿、左转箭头灯、圆形指示灯、左转允许信号）
);
end entity TrafficControlButton;
architecture Behavioral of TrafficControlButton is
signal buttonState: std_logic := '0';
begin
process (reset, button)
begin
if reset = '1' then
buttonState <= '0';
trafficLights <= (others => '0');
elsif button'event and button = '1' then
if buttonState = '0' then -- 按钮按下
buttonState <= '1';
trafficLights <= "111111"; -- 所有信号灯亮红色
else -- 按钮释放
buttonState <= '0';
trafficLights <= "000011"; -- 左转允许信号亮红色，其余信号灯熄灭
end if;
end if;
end process;
end architecture Behavioral;
-- 顶层模块
entity TrafficLightController is
port (
clk: in std_logic;
reset: in std_logic;
leftTurnComplete: in std_logic;
leftTurnAllow: in std_logic;
button: in std_logic;
trafficLights: out std_logic_vector(5 downto 0) -- 信号灯输出（红、黄、绿、左转箭头灯、圆形指示灯、左转允许信号）
);
end entity TrafficLightController;
architecture Behavioral of TrafficLightController is
component CircularLight is
port (
clk: in std_logic;
reset: in std_logic;
leftTurnComplete: in std_logic;
circularLight: out std_logic_vector(2 downto 0)
);
end component CircularLight;
component LeftTurnLight is
port (
clk: in std_logic;
reset: in std_logic;
leftTurnAllow: in std_logic;
leftTurnLight: out std_logic
);
end component LeftTurnLight;
component TrafficControlButton is
port (
reset: in std_logic;
button: in std_logic;
trafficLights: out std_logic_vector(5 downto 0)
);
end component TrafficControlButton;
signal circularLightState: std_logic_vector(2 downto 0);
signal leftTurnLightState: std_logic;
signal trafficControlButtonState: std_logic_vector(5 downto 0);
begin
circularLight: CircularLight
port map (
clk => clk,
reset => reset,
leftTurnComplete => leftTurnComplete,
circularLight => circularLightState
);
leftTurnLight: LeftTurnLight
port map (
clk => clk,
reset => reset,
leftTurnAllow => leftTurnAllow,
leftTurnLight => leftTurnLightState
);
trafficControlButton: TrafficControlButton
port map (
reset => reset,
button => button,
trafficLights => trafficControlButtonState
);
trafficLights <= circularLightState & leftTurnLightState & trafficControlButtonState;
end architecture Behavioral;
以上是一个基本的交通灯控制器的VHDL设计。请注意，该代码仅提供了模块的基本功能，并未进行完整的验证和测试。你可以根据需要进行进一步的功能扩展和调整。确保在进行实际使用之前进行仿真测试以验证功能的正确性和性能。
同时，你可能还需要编写适当的testbench来测试每个模块的功能，并在整体设计中进行仿真测试。这些测试通常涉及提供适当的输入信号并验证输出信号是否符合预期。根据你的具体需求，可以使用VHDL自带的仿真工具或其他仿真工具（如ModelSim）来执行仿真。
请注意，以上代码仅提供了基本的框架和思路，实际的设计和测试可能需要根据你的具体需求和平台进行一些调整和优化。
圆形指示灯控制器实现红绿黄三色灯的循环控制，并根据左转完成信号控制左转允许信号输出。圆形指示灯的状态机共有4个状态：初始状态、黄灯闪烁状态、绿灯状态和左转完成状态。
左转箭头灯控制器实现了左转箭头灯的控制，根据圆形指示灯的左转允许信号控制绿灯和红灯的输出，并在15秒后产生左转完成信号通知圆形指示灯控制器。
整体系统控制模块将圆形指示灯控制器和左转箭头灯控制器连接起来，同时还接收外部的交通管制按钮信号，当按下交通管制按钮时，则所有信号灯亮起红灯。整体系统的状态机由圆形指示灯控制器实现，且整个控制系统中只有一个状态机。
圆形指示灯控制器的VHDL设计：
entity circular_light_controller is
port (
east_west_turn_complete: in std_logic; --接收自东西向左转箭头灯的左转完成信号
green_light: out std_logic; --灯色输出：绿灯
red_light: out std_logic; --灯色输出：红灯
yellow_light: out std_logic; --灯色输出：黄灯
left_turn_permission: out std_logic --左转允许信号输出
);
end circular_light_controller;
architecture Behavioral of circular_light_controller is
signal state: std_logic_vector(3 downto 0) := "0000"; --状态机控制变量
begin
process (state) --状态机进程
begin
case state is
when "0000" => --初始状态
red_light <= '1';
green_light <= '0';
yellow_light <= '0';
left_turn_permission <= '0';
if east_west_turn_complete = '1' then --如果接收到左转完成信号则进入下一个状态
state <= "0001";
end if;
when "0001" => --黄灯闪烁状态
red_light <= '0';
green_light <= '0';
if yellow_light = '0' then
yellow_light <= '1';
else
yellow_light <= '0';
end if;
left_turn_permission <= '0';
wait for 1 sec; --等待1秒
if east_west_turn_complete = '1' then --如果接收到左转完成信号则进入下一个状态
state <= "0010";
end if;
when "0010" => --绿灯状态
red_light <= '0';
green_light <= '1';
yellow_light <= '0';
left_turn_permission <= '0';
wait for 24 sec; --等待24秒
if east_west_turn_complete = '1' then --如果接收到左转完成信号则进入下一个状态
state <= "0011";
end if;
when "0011" => --黄灯闪烁状态
red_light <= '0';
green_light <= '0';
if yellow_light = '0' then
yellow_light <= '1';
else
yellow_light <= '0';
end if;
left_turn_permission <= '0';
wait for 1 sec; --等待1秒
if east_west_turn_complete = '1' then --如果接收到左转完成信号则返回初始状态
state <= "0000";
red_light <= '1';
green_light <= '0';
yellow_light <= '0';
left_turn_permission <= '1';
end if;
end case;
end process;
end Behavioral;
左转箭头灯控制器的VHDL设计：
entity left_turn_light_controller is
port (
left_turn_permission: in std_logic; --接收自圆形指示灯的左转允许信号
green_light: out std_logic; --灯色输出：绿灯
red_light: out std_logic; --灯色输出：红灯
east_west_turn_complete: out std_logic --左转完成信号输出
);
end left_turn_light_controller;
architecture Behavioral of left_turn_light_controller is
signal state: std_logic_vector(2 downto 0) := "000"; --状态机控制变量
begin
process (state) --状态机进程
begin
case state is
when "000" => --初始状态
red_light <= '1';
green_light <= '0';
east_west_turn_complete <= '0';
if left_turn_permission = '1' then --如果接收到左转允许信号则进入下一个状态
state <= "001";
end if;
when "001" => --绿灯状态
red_light <= '0';
green_light <= '1';
east_west_turn_complete <= '0';
wait for 15 sec; --等待15秒
state <= "010"; --进入下一个状态
when "010" => --红灯状态
red_light <= '1';
green_light <= '0';
east_west_turn_complete <= '1';
wait for 1 min; --等待1分钟后返回初始状态
state <= "000";
end case;
end process;
end Behavioral;
整体系统的VHDL设计：
entity traffic_light_controller is
port (
east_west_turn_complete: in std_logic; --接收自东西向左转箭头灯的左转完成信号
green_circular_light: out std_logic; --圆形指示灯：绿灯输出
red_circular_light: out std_logic; --圆形指示灯：红灯输出
yellow_circular_light: out std_logic; --圆形指示灯：黄灯输出
left_turn_permission: out std_logic; --圆形指示灯：左转允许信号输出
left_turn_green_light: out std_logic; --左转箭头灯：绿灯输出
left_turn_red_light: out std_logic; --左转箭头灯：红灯输出
east_west_turn_complete_signal: in std_logic; --左转完成信号输入
all_red_light: out std_logic --交通管制按钮：所有信号灯亮起红灯
);
end traffic_light_controller;
architecture Behavioral of traffic_light_controller is
signal circular_light_left_turn_permission: std_logic; --圆形指示灯控制器的左转允许信号
begin
circular_light_ctrl: entity work.circular_light_controller port map (
east_west_turn_complete => east_west_turn_complete,
green_light => green_circular_light,
red_light => red_circular_light,
yellow_light => yellow_circular_light,
left_turn_permission => circular_light_left_turn_permission
);
left_turn_light_ctrl: entity work.left_turn_light_controller port map (
left_turn_permission => circular_light_left_turn_permission,
green_light => left_turn_green_light,
red_light => left_turn_red_light,
east_west_turn_complete => east_west_turn_complete_signal
);
process (all_red_light) --交通管制按钮进程
begin
if all_red_light = '1' then --如果按下交通管制按钮则所有信号灯亮起红灯
green_circular_light <= '0';
red_circular_light <= '1';
yellow_circular_light <= '0';
left_turn_permission <= '0';
left_turn_green_light <= '0';
left_turn_red_light <= '1';
east_west_turn_complete_signal <= '0';
wait for 1 min; --等待1分钟后返回初始状态
green_circular_light <= '0';
red_circular_light <= '1';
yellow_circular_light <= '0';
left_turn_permission <= '0';
left_turn_green_light <= '0';
left_turn_red_light <= '1';
east_west_turn_complete_signal <= '1';
end if;
end process;
end Behavioral;