病房呼叫系统vhdl代码编写

病房呼叫系统的VHDL代码编写需要根据具体的硬件设计进行，以下是一个简单的病房呼叫系统VHDL代码示例：

-- 定义输入信号
entity call_system is
    port (
        call_button : in std_logic; -- 呼叫按钮信号
        stop_button : in std_logic; -- 停止呼叫按钮信号
        clk : in std_logic;         -- 时钟信号
        reset : in std_logic        -- 复位信号
    );
end entity call_system;

-- 定义输出信号
architecture rtl of call_system is
    signal call_signal : std_logic;      -- 呼叫信号
    signal stop_signal : std_logic;      -- 停止呼叫信号
    signal call_status : std_logic;      -- 呼叫状态
    signal stop_status : std_logic;      -- 停止状态
    signal call_indicator : std_logic;   -- 呼叫指示灯
    signal stop_indicator : std_logic;   -- 停止指示灯
begin
    -- 呼叫按钮检测
    process (clk, reset)
    begin
        if reset = '1' then
            call_signal <= '0';
            call_status <= '0';
        elsif rising_edge(clk) then
            if call_button = '1' then
                call_signal <= '1';
                call_status <= '1';
            else
                call_signal <= '0';
                call_status <= '0';
            end if;
        end if;
    end process;

    -- 停止按钮检测
    process (clk, reset)
    begin
        if reset = '1' then
            stop_signal <= '0';
            stop_status <= '0';
        elsif rising_edge(clk) then
            if stop_button = '1' then
                stop_signal <= '1';
                stop_status <= '1';
            else
                stop_signal <= '0';
                stop_status <= '0';
            end if;
        end if;
    end process;

    -- 呼叫指示灯控制
    process (call_signal, reset)
    begin
        if reset = '1' then
            call_indicator <= '0';
        elsif call_signal = '1' then
            call_indicator <= '1';
        else
            call_indicator <= '0';
        end if;
    end process;

    -- 停止指示灯控制
    process (stop_signal, reset)
    begin
        if reset = '1' then
            stop_indicator <= '0';
        elsif stop_signal = '1' then
            stop_indicator <= '1';
        else
            stop_indicator <= '0';
        end if;
    end process;

end architecture rtl;

以上代码仅仅是一个简单的示例，实际代码需要根据具体的硬件设计进行编写。