-- Clock Generator library IEEE; use IEEE.std_logic_1164.all; entity clkGen is port (clk : out std_logic); end clkGen; architecture behavior of clkGen is constant clk_period : time := 10 ns; begin clkgen : process begin clk <= '0'; wait for clk_period/2; clk <= '1'; wait for clk_period/2; end process clkgen; end behavior;