fro_light.vhd

1 前大灯可以随意打开和关闭； 2 当汽车左转弯的时候

LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_ARITH.ALL;

ENTITY fro_light IS
  PORT( 
       clk       : IN STD_LOGIC;
       glistenab : IN STD_LOGIC;
       glisten   : OUT STD_LOGIC
      );
end fro_light;

ARCHITECTURE arch_fro_light OF fro_light IS
BEGIN
  process( clk, glistenab)
  BEGIN  
   if( glistenab = '1')THEN
       glisten <= clk;
     else
       glisten <= '0';
     end if;
  end process;
end arch_fro_light;