topmiaobiao.vhd

实现秒表的功能。能精确到0.01位。最多能计时1个小时。

LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY TopMiaobiao IS
PORT(CLK,EN,RESET    :IN  STD_LOGIC;
    DisplaySEC01L:OUT STD_LOGIC_VECTOR(6 DOWNTO 0);
    DisplaySEC01R:OUT STD_LOGIC_VECTOR(6 DOWNTO 0);
    DisplaySECL  :OUT STD_LOGIC_VECTOR(6 DOWNTO 0);
    DisplaySECR  :OUT STD_LOGIC_VECTOR(6 DOWNTO 0);
    DisplayMINL  :OUT STD_LOGIC_VECTOR(6 DOWNTO 0);
    DisplayMINR  :OUT STD_LOGIC_VECTOR(6 DOWNTO 0)
     );
END ENTITY TopMiaobiao;
ARCHITECTURE ART OF TopMiaobiao IS
     COMPONENT  miaobiao IS
           PORT(CLK,EN,RESET :IN STD_LOGIC;             
                SEC01L,SEC01R :OUT INTEGER RANGE 0 TO 9; 
                SECL, SECR    :OUT INTEGER RANGE 0 TO 9; 
                MINL ,MINR    :OUT INTEGER RANGE 0 TO 9 
               );
     END COMPONENT  miaobiao;
     COMPONENT  Display IS
           PORT(CLK    :IN  STD_LOGIC;
     			DATA   :IN  INTEGER RANGE 0 TO 9;
     			Display:OUT STD_LOGIC_VECTOR(6 DOWNTO 0)
     			);
     END COMPONENT  Display;
     SIGNAL SEC01L,SEC01R:INTEGER RANGE 0 TO 9; 
     SIGNAL SECL,SECR    :INTEGER RANGE 0 TO 9; 
     SIGNAL MINL,MINR    :INTEGER RANGE 0 TO 9;
     BEGIN
     MiaoBContr:miaobiao PORT MAP(CLK=>CLK,EN=>EN,RESET=>RESET,
                                  SEC01L=>SEC01L,SEC01R=>SEC01R,
                                  SECL=>SECL, SECR=>SECR,
                                  MINL=>MINL ,MINR=>MINR);
     DisSEC01L:Display   PORT MAP(CLK=>CLK,DATA=>SEC01L,Display=>DisplaySEC01L);
     DisSEC01R:Display   PORT MAP(CLK=>CLK,DATA=>SEC01R,Display=>DisplaySEC01R);
	 DisSECL  :Display   PORT MAP(CLK=>CLK,DATA=>SECL,  Display=>DisplaySECL);
     DisSECR  :Display   PORT MAP(CLK=>CLK,DATA=>SECR,  Display=>DisplaySECR);
     DisMINL  :Display   PORT MAP(CLK=>CLK,DATA=>MINL,  Display=>DisplayMINL);
     DisMINR  :Display   PORT MAP(CLK=>CLK,DATA=>MINR,  Display=>DisplayMINR);
END ARCHITECTURE ART;