分频：

模式选择：

数码管显示：

四、源程序

顶层文件： LIBRARY IEEE;

USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_UNSIGNED.ALL;

ENTITY washing IS PORT(

clk:IN STD_LOGIC; clear:IN STD_LOGIC;

up,down,mode,sure,choice,pause,start:IN STD_LOGIC;-- DISP:OUT STD_LOGIC_VECTOR(7 DOWNTO 0); beep:OUT STD_LOGIC;

LED1:OUT STD_LOGIC_VECTOR(4 DOWNTO 0); LED2:OUT STD_LOGIC_VECTOR(2 DOWNTO 0); CAT:OUT STD_LOGIC_VECTOR(5 DOWNTO 0); row:OUT STD_LOGIC_VECTOR(7 DOWNTO 0); colg:OUT STD_LOGIC_VECTOR(7 DOWNTO 0); colr:OUT STD_LOGIC_VECTOR(7 DOWNTO 0) );

END washing;