午夜看看-日本在线www-天天操网-久久久精品一区二区-亚洲理论电影-久久久国产一区二区三区

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(fā)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 .03125 s, 2 queries.
主站蜘蛛池模板: 女人毛片a毛片久久人人 | 丰满老熟女毛片 | 免费公开视频人人人人人人人 | 国内精品伊人久久久久妇 | 精品久久免费观看 | 极品丝袜高跟91白沙发在线 | 日韩精品中文字幕视频一区 | 99精品国产一区二区三区 | 久久视屏这里只有精品6国产 | 亚洲国产精品网站久久 | 蕾丝视频永久在线入口香蕉 | 成年人免费在线视频 | 性欧美巨大的视频 | 国产美女又黄又爽又色视频免费 | 国产成人狂喷潮在线观看2345 | 国产激情久久久久影 | 高清精品一区二区三区一区 | 欧美精品综合一区二区三区 | 盗摄偷拍a在线观看 | 久久狠狠一本精品综合网 | 欧美成人免费一级人片 | 一级视频在线观看 | 成在线人永久免费播放视频 | 欧美首页 | 久久青草国产手机看片福利盒子 | 欧美极品video粗暴 | 欧美级| 国产日韩欧美精品一区 | 美女被爆免费视频软件 | 亚洲三级成人 | 99精品视频一区在线视频免费观看 | 久草手机视频在线观看 | 日韩在线欧美在线 | 欧美一级带 | 天干天干天啪啪夜爽爽色 | 亚洲欧美一区二区久久 | 亚洲国产日韩综合久久精品 | 国产精品视频网址 | 亚洲成a v人片在线观看 | 中文字幕人成乱码在线观看 | 一区二区三区在线播放视频 |