设计一个比较电路,当输入的4位二进制数>9时,输出1,否则为0.谢谢!用VHDL语言

2025-01-04 07:19:46
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回答1:

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

ENTITY comparator IS
PORT(data_in:IN STD_LOGIC_VECTOR(3 DOWNTO 0));
y:out STD_LOGIC);
END comparator;

ARCHITECTURE one OF comparator IS
BEGIN

p1:PROCESS(data_in)
BEGIN
IF data_in>9 THEN
y <= '1';
ELSE
y <= '0';
END IF;
END PROCESS p1;
END one;