成人免费一级片_国产一区导航_av资源在线免费观看_91黄色免费视频_亚洲欧美日韩色_91国产精品一区

Rss & SiteMap

曙海教育集團論壇 http://www.bjzhda.cn

曙海教育集團論壇
共20 條記錄, 每頁顯示 10 條, 頁簽: [1] [2]
[瀏覽完整版]

標題:FPGA 時鐘問題

1樓
wangxinxin 發表于:2010-12-19 14:00:46
剛學不久~

我要做24H製的時鐘~但我一直DEBUG~一直用不出來~

Xilinx ISE 8.2i軟體~

請會的人幫我看一下哪出錯了~謝



library IEEE;

use IEEE.STD_LOGIC_1164.ALL;

use IEEE.STD_LOGIC_ARITH.ALL;

use IEEE.STD_LOGIC_UNSIGNED.ALL;


---- Uncomment the following library declaration if instantiating

---- any Xilinx primitives in this code.

--library UNISIM;

--use UNISIM.VComponents.all;


entity CLOCK_00_60 is

    Port ( CLK : in  STD_LOGIC;

           RESET : in  STD_LOGIC;

           ENABLE : out  STD_LOGIC_VECTOR (6 downto 0);

           SEGMENT : out  STD_LOGIC_VECTOR (6 downto 0));

end CLOCK_00_60;


architecture Behavioral of CLOCK_00_60 is

signal SCAN_CLK :STD_LOGIC;

signal COUNT_CLK :STD_LOGIC;

signal DECODE_BCD :STD_LOGIC_VECTOR (3 downto 0);

signal mineable :STD_LOGIC;

signal hreable :STD_LOGIC;

signal POSITION:STD_LOGIC_VECTOR (6 downto 0);

signal DIVIDER:STD_LOGIC_VECTOR (29 downto 1);

signal COUNT_BCD:STD_LOGIC_VECTOR (23 downto 0);


begin

-------------------------------------------------

process (CLK,RESET)

begin

if RESET = '0' then

 DIVIDER <= ( others => '0');

elsif CLK' event and CLK = '1' then

 DIVIDER <= DIVIDER + 1 ;

end if;

end process;

COUNT_CLK<=DIVIDER(24);

SCAN_CLK<=DIVIDER(15);

------------------------------------------------秒

process(RESET,SCAN_CLK)

begin

if RESET = '0' then

 COUNT_BCD <= ( others => '0');

elsif SCAN_CLK' event and SCAN_CLK = '1' then

 if   COUNT_BCD(3 downto 0)= x"9" then

    COUNT_BCD(3 downto 0)<= x"0";

    COUNT_BCD(7 downto 4)<= COUNT_BCD(7 downto 4)+1;

 else

   COUNT_BCD(3 downto 0)<= COUNT_BCD(3 downto 0)+1;

 end if;

end if;

end process;

mineable <= '1' when COUNT_BCD(7 downto 0) = x"59" else '0';

----------------------------------------------------------分


process(RESET,SCAN_CLK)

begin

if RESET = '0' then

 COUNT_BCD <= ( others => '0');

 if mineable = '1' then

elsif SCAN_CLK' event and SCAN_CLK = '1' then

 if   COUNT_BCD(11 downto 8)= x"9" then

    COUNT_BCD(11 downto 8)<= x"0";

    COUNT_BCD(15 downto 12)<= COUNT_BCD(15 downto 12)+1;

 else

   COUNT_BCD(11 downto 8)<= COUNT_BCD(11 downto 8)+1;

 end if;

end if;

end if;

end process;

hreable <= '1' when COUNT_BCD(15 downto 8) = x"59" else '0';

-------------------------------------------------------------時

process(RESET,SCAN_CLK)

begin

if RESET = '0' then

 COUNT_BCD <= ( others => '0');

  if mineable = '1' and hreable = '1' then

elsif SCAN_CLK' event and SCAN_CLK = '1' then

 if   COUNT_BCD(19 downto 16)= x"9" then

    COUNT_BCD(19 downto 16)<= x"0";

    COUNT_BCD(23 downto 20)<= COUNT_BCD(23 downto 20)+1;

  if   COUNT_BCD(19 downto 16)= x"2" then

   COUNT_BCD(23 downto 20)<= x"0";

 else

   COUNT_BCD(19 downto 16)<= COUNT_BCD(19 downto 16)+1;

  end if;

 end if;

  end if;

end if;

end process;



process(RESET,SCAN_CLK)

begin

if RESET = '0' then

 POSITION <= "1111110";

elsif SCAN_CLK' event and SCAN_CLK = '1' then

 POSITION<="111111"&POSITION(0);

end if;

end process;

ENABLE<=POSITION;

-----------------------------------------------------------

process(POSITION,SCAN_CLK)

begin

case POSITION is

 when "1111110" => DECODE_BCD <=COUNT_BCD(3 downto 0);    --秒

 when "1111101" => DECODE_BCD <=COUNT_BCD(7 downto 4);    --秒

 when "1111011" => DECODE_BCD <=COUNT_BCD(11 downto 8);   --分

 when "1110111" => DECODE_BCD <=COUNT_BCD(15 downto 12);   --分

   when "1101111" => DECODE_BCD <=COUNT_BCD(19 downto 16);   --時

   when "1011111" => DECODE_BCD <=COUNT_BCD(23 downto 20);   --時

 when others => null;

end case;

end process;

 

with DECODE_BCD Select

SEGMENT<= "1000000" when X"0",

  "1111001" when X"1",

  "0100100" when X"2",

  "0110000" when X"3",

  "0011001" when X"4",

  "0010010" when X"5",

  "0000010" when X"6",

  "1111000" when X"7",

  "0000000" when X"8",

  "0010000" when X"9",

  "1111111" when others;


end Behavioral;
共20 條記錄, 每頁顯示 10 條, 頁簽: [1] [2]

Copyright © 2000 - 2009 曙海教育集團
Powered By 曙海教育集團 Version 2.2
Processed in .01563 s, 2 queries.
主站蜘蛛池模板: 五月婷婷六月婷婷 | 久久国产一区 | 欧美视频在线看 | 国产原创视频在线 | 五月色丁香 | 亚洲国产精品第一页 | 一级片在线 | 国产一级片在线播放 | 亚洲成人久久久 | 成人欧美一区 | 免费国产视频 | 99免费精品视频 | 午夜aaaa | 国产午夜视频在线 | 国产精品国产三级国产aⅴ无密码 | 日韩黄色影院 | 丰满肥臀噗嗤啊x99av | 久久久国产精品x99av | 午夜视频网 | 青草久久久 | 偷拍青青草| 欧美一区二区在线视频 | 91精品国产毛片武则天 | 国产一区二区三区在线看 | 日日夜夜伊人 | 2018天天操| 成人欧美一区二区三区黑人免费 | 一级国产黄色片 | 加勒比久久综合 | 三级视频在线播放 | 国产精品美女久久 | 久久九九国产精品 | 日韩欧美大片在线观看 | 九色porny原创自拍 | 久久精品婷婷 | 天堂欧美城网站 | 国产中文字幕在线播放 | 日韩成人一区二区 | 欧美日韩偷拍视频 | 99热这里只有精品5 日本全黄裸体片 | 欧美黄在线观看 |