library IEEE; use IEEE.STD_LOGIC_1164.all; package mypackage is type STATE_array is array (0 to 15) of STD_LOGIC_VECTOR(7 downto 0); type char_array is array (15 downto 0) of STD_LOGIC_VECTOR(7 DOWNTO 0); --remember to change 15 to 31 end mypackage; package body mypackage is end mypackage;