how to gve delay to rotate stepper motor

..plz can any body suggest me to how modify it work succesfully entity step3 is Port (clk : in STD_LOGIC; dout : out STD_LOGIC_VECTOR (3 downto 0)); end step3; architecture Behavioral of step3 is signal count:std_logic_vector(15 downto 0):=x"0000"; constant dl:time:=3 ms; begin process(clk) begin if(rising_edge(clk))then count<=count+1; dout<="1010"after dl; dout<="1001"after dl; dout<="0101"after dl; dout<="0110"after dl; if(count>x"B71B0")then count<=x"0000"; end if; end if; end process; end Behavioral;

Stepper motor datasheet

any one have the datasheets of stepper motor than pls

connection of stepper motor lcd display

how to connect stepper motor and lcd dispay with 89c51 atmel microcontroller