跑马灯实验

实现几个灯的轮流闪烁。LIBRARYIEEE;USEIEEE.STD_LOGIC_1164.ALL;USEIEEE.STD_LOGIC_UNSIGNED.ALL;ENTITYSHFRTISPORT(CLK:INSTD_LOGIC;MODE:INSTD_LOGIC;EN:INSTD_LOGIC;RESET:INSTD_LOGIC;LEDG:OUTSTD_LOGIC_VECTOR(7DOWNTO0));ENDSHFRT;ARCHITECTUREBEHAVOFSHFRTISTYPEFSM_STIS(S00,S01,S10,S11,S20,S21,S30,S31,S40,S41,S50,S5