设计实验与考核1、 设计一个带计数使能、异步复位、带进位输出的增1六位二进制计数器，计数结果由共阴极七段数码管显示。答：library ieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;entity counter is port(clk,clk1,en,clr:in std_logic; ledout:out std_logic_vector(6 downto 0); scanout,scanout1,co:out std_logic);end counter;architecture a of counter issignal cnt:std_logic_vector(7 downto 0);signal led:std_logic_vector(6 downto 0);signal scan:std_logic;signal hex:std_logic_vector(3 downto 0);begin
