Question

棒形固定在线段的左侧，点线段要根据时钟单独显示。但同时显示这是一个示例图片https://imgur.com/LXGVUJO

    library ieee;
  use ieee.std_logic_1164.all;

 entity adventure is
port(clk : in std_logic;
     dot_seg : out std_logic;
     select_seg : out std_logic_vector(7 downto 0);
     player_in : in std_logic_vector(1 downto 0);
     seg : out std_logic_vector(6 downto 0));

  end adventure;

  architecture behavior of adventure is
    signal dot_clk : std_logic;
    signal player_clk : std_logic;
  begin
    process(clk)                
     variable dot_cnt : integer := 0;
     variable player_cnt : integer := 0;
   begin
    if rising_edge(clk) then        
        if dot_cnt >= 5000000 then  -- dot_seg clk
            dot_cnt := 0;
            dot_clk <= not dot_clk;
        else
            dot_cnt := dot_cnt + 1;
        end if;

        if player_cnt >= 50005 then -- player_seg clk
            player_cnt := 0;
            player_clk <= not player_clk;
        else
            player_cnt := player_cnt + 1;
        end if;

    end process;

process(clk, dot_clk, player_clk)       
begin

    if player_clk = '1' then        -- player 
        case player_in is                       
            when "00" => seg <= "1000110";
            when "01" => seg <= "1000011";
            when "10" => seg <= "0010101";
            when "11" => seg <= "1000110";
        end case;
        select_seg <= "01111111";
    end if;

    if dot_clk = '1' then       -- dot(road) segment
        dot_seg <= '1';                ---- put in seg <= "0000000"; ???
        select_seg <= "01011111";
    else
        dot_seg <='1';                 ---- put in seg <= "0000000"; ???
        select_seg <= "10101111";
    end if;


end process;
 end behavior;

Answer 1

在第二步尝试类似的操作

signal digit_display : std_logic := '0';

process(clk)       
begin

    if rising_edge(clk) then

      digit_display <= not(digit_display);

      if digit_display = '1' then

        dot_seg <= '0';

        if player_clk = '1' then        -- player 
          case player_in is                       
            when "00" => seg <= "1000110";
            when "01" => seg <= "1000011";
            when "10" => seg <= "0010101";
            when "11" => seg <= "1000110";
            select_seg <= "01111111";
          end case;
        end if;

      else

        seg <= "0000000"; -- Full off, I don't know polarity

        if dot_clk = '1' then       -- dot(road) segment
          dot_seg <= '1';
          select_seg <= "01011111";
        else
          dot_seg <='1';
          select_seg <= "10101111";
        end if;

      end if;

    end if;

end process;

如果clk太快而不能使digit_display闪烁，则可以放置一个这样的计数器：

signal digit_display_count : unsigned(15 downto 0) := (others => '0');

if digit_display_count = 100 then -- Choose an appropriate value
  digit_display       <= not(digit_display);
  digit_display_count <= (others => '0')
else
  digit_display_count <= digit_display_count + 1;
end if;

我想根据不同的网络时钟显示细分，但是我不能

1 个答案: