Question

请问如何让程序中输入code的值赋值给信号q（程序可以编译通过但code不能实现赋值的功能）

library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;
entity kz is
port(clk : in std_logic;
L,E,G: in std_logic;
code: in std_logic_vector(4 downto 0);
c :out std_logic;
control : out std_logic_vector(4 downto 0)
);
end;
architecture aaa of kz is
signal q : std_logic_vector(4 downto 0):=code;
signal x : std_logic;
begin
process(L,G,E)
begin
if clk'event and clk='1' then
if L='1' then
q<=q+'1';x<='1';
end if;
if G='1' then
q<=q-'1';x<='1';
end if;
if E='1' then
end if;
end if;
end process;
control<=q;
c<=x;
end;

Answer 1

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