data_rom.vhd

正弦波发生器

LIBRARY ieee;
USE ieee.std_logic_1164.all;

LIBRARY altera_mf;
USE altera_mf.altera_mf_components.all;

ENTITY data_rom IS
	PORT
	(
		address		: IN STD_LOGIC_VECTOR (5 DOWNTO 0);
		inclock		: IN STD_LOGIC ;
		q		: OUT STD_LOGIC_VECTOR (7 DOWNTO 0)
	);
END data_rom;


ARCHITECTURE SYN OF data_rom IS

	SIGNAL sub_wire0	: STD_LOGIC_VECTOR (7 DOWNTO 0);



	COMPONENT altsyncram
	GENERIC (
		intended_device_family		: STRING;
		width_a		: NATURAL;
		widthad_a		: NATURAL;
		numwords_a		: NATURAL;
		operation_mode		: STRING;
		outdata_reg_a		: STRING;
		address_aclr_a		: STRING;
		outdata_aclr_a		: STRING;
		width_byteena_a		: NATURAL;
		init_file		: STRING;
		lpm_hint		: STRING;
		lpm_type		: STRING
	);
	PORT (
			clock0	: IN STD_LOGIC ;
			address_a	: IN STD_LOGIC_VECTOR (5 DOWNTO 0);
			q_a	: OUT STD_LOGIC_VECTOR (7 DOWNTO 0)
	);
	END COMPONENT;

BEGIN
	q    <= sub_wire0(7 DOWNTO 0);

	altsyncram_component : altsyncram
	GENERIC MAP (
		intended_device_family => "Cyclone",
		width_a => 8,
		widthad_a => 6,
		numwords_a => 64,
		operation_mode => "ROM",
		outdata_reg_a => "UNREGISTERED",
		address_aclr_a => "NONE",
		outdata_aclr_a => "NONE",
		width_byteena_a => 1,
		init_file => "./dataHEX/SDATA.hex",
		lpm_hint => "ENABLE_RUNTIME_MOD=YES, INSTANCE_NAME=rom1",
		lpm_type => "altsyncram"
	)
	PORT MAP (
		clock0 => inclock,
		address_a => address,
		q_a => sub_wire0
	);



END SYN;