---------------------------------------------
--Project Gump
--Marc Binette
--Ralph Nevins
--Lambert Lo
----------------------------------------------
--servo_controller_comp.vhd
--This makes a package with all the components
--used in the servo controller
--these are a counter, a hold register, a register,
--and a comparator

LIBRARY ieee;
USE ieee.std_logic_1164.ALL;


PACKAGE servo_controller_package IS

--constants are used to set up the generic
--components
CONSTANT count : positive := 12;
CONSTANT holdreg : positive := 8;

--counter component
	COMPONENT servo_controller_counter 
		PORT(clock : IN std_logic;
			overflow : BUFFER std_logic;
			topfourbits : BUFFER std_logic_vector(3 DOWNTO 0);
			count_out : BUFFER std_logic_vector(count-1 DOWNTO 0));
	END COMPONENT;

--hold register component
	COMPONENT servo_controller_8bithold
		PORT(load, reset : IN std_logic;
			data : IN std_logic_vector(holdreg-1 DOWNTO 0);
			hold_out : BUFFER std_logic_vector(holdreg-1 DOWNTO 0));
	END COMPONENT;

--register component
	COMPONENT servo_controller_register8bit 
		PORT(load, reset : IN std_logic;
		data_in : IN std_logic_vector(holdreg-1 DOWNTO 0);
			register_out : buffer std_logic_vector(holdreg-1 DOWNTO 0));
	END COMPONENT ;

--comparator component
	COMPONENT servo_controller_comparator 
		PORT(reg_in : IN std_logic_vector(holdreg-1 DOWNTO 0);
			cnt_in : IN std_logic_vector(count-1 DOWNTO 0);
			compare_out : buffer std_logic);
	END COMPONENT;

--dflipflop component
	COMPONENT servo_controller_dflip IS
		PORT(load, datain : IN std_logic;
			dataout : OUT std_logic);
	END COMPONENT;

END PACKAGE;