LAB3/src/moving_average_filter_en.vhd

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+LIBRARY IEEE;
+USE IEEE.STD_LOGIC_1164.ALL;
+USE ieee.numeric_std.ALL;
+
+ENTITY moving_average_filter_en IS
+	GENERIC (
+		-- Filter order expressed as 2^(FILTER_ORDER_POWER)
+		FILTER_ORDER_POWER : INTEGER := 5;
+
+		TDATA_WIDTH : POSITIVE := 24
+	);
+	PORT (
+		aclk : IN STD_LOGIC;
+		aresetn : IN STD_LOGIC;
+
+		s_axis_tvalid : IN STD_LOGIC;
+		s_axis_tdata : IN STD_LOGIC_VECTOR(TDATA_WIDTH - 1 DOWNTO 0);
+		s_axis_tlast : IN STD_LOGIC;
+		s_axis_tready : OUT STD_LOGIC;
+
+		m_axis_tvalid : OUT STD_LOGIC;
+		m_axis_tdata : OUT STD_LOGIC_VECTOR(TDATA_WIDTH - 1 DOWNTO 0);
+		m_axis_tlast : OUT STD_LOGIC;
+		m_axis_tready : IN STD_LOGIC;
+
+		enable_filter : IN STD_LOGIC
+	);
+END moving_average_filter_en;
+
+ARCHITECTURE Behavioral OF moving_average_filter_en IS
+
+	-- Component declarations
+	COMPONENT all_pass_filter IS
+		GENERIC (
+			TDATA_WIDTH : POSITIVE := 24
+		);
+		PORT (
+			aclk : IN STD_LOGIC;
+			aresetn : IN STD_LOGIC;
+
+			s_axis_tvalid : IN STD_LOGIC;
+			s_axis_tdata : IN STD_LOGIC_VECTOR(TDATA_WIDTH - 1 DOWNTO 0);
+			s_axis_tlast : IN STD_LOGIC;
+			s_axis_tready : OUT STD_LOGIC;
+
+			m_axis_tvalid : OUT STD_LOGIC;
+			m_axis_tdata : OUT STD_LOGIC_VECTOR(TDATA_WIDTH - 1 DOWNTO 0);
+			m_axis_tlast : OUT STD_LOGIC;
+			m_axis_tready : IN STD_LOGIC
+		);
+	END COMPONENT;
+
+	COMPONENT moving_average_filter IS
+		GENERIC (
+			FILTER_ORDER_POWER : INTEGER := 5;
+			TDATA_WIDTH : POSITIVE := 24
+		);
+		PORT (
+			aclk : IN STD_LOGIC;
+			aresetn : IN STD_LOGIC;
+
+			s_axis_tvalid : IN STD_LOGIC;
+			s_axis_tdata : IN STD_LOGIC_VECTOR(TDATA_WIDTH - 1 DOWNTO 0);
+			s_axis_tlast : IN STD_LOGIC;
+			s_axis_tready : OUT STD_LOGIC;
+			
+			m_axis_tvalid : OUT STD_LOGIC;
+			m_axis_tdata : OUT STD_LOGIC_VECTOR(TDATA_WIDTH - 1 DOWNTO 0);
+			m_axis_tlast : OUT STD_LOGIC;
+			m_axis_tready : IN STD_LOGIC
+		);
+	END COMPONENT;
+
+	-- Internal signals for the all-pass filter
+	SIGNAL all_pass_s_tvalid : STD_LOGIC;
+	SIGNAL all_pass_s_tready : STD_LOGIC;
+
+	SIGNAL all_pass_m_tvalid : STD_LOGIC;
+	SIGNAL all_pass_m_tdata : STD_LOGIC_VECTOR(TDATA_WIDTH - 1 DOWNTO 0);
+	SIGNAL all_pass_m_tlast : STD_LOGIC;
+	SIGNAL all_pass_m_tready : STD_LOGIC;
+
+	-- Internal signals for the moving average filter
+	SIGNAL moving_avg_s_tvalid : STD_LOGIC;
+	SIGNAL moving_avg_s_tready : STD_LOGIC;
+	
+	SIGNAL moving_avg_m_tvalid : STD_LOGIC;
+	SIGNAL moving_avg_m_tdata : STD_LOGIC_VECTOR(TDATA_WIDTH - 1 DOWNTO 0);
+	SIGNAL moving_avg_m_tlast : STD_LOGIC;
+	SIGNAL moving_avg_m_tready : STD_LOGIC;
+
+BEGIN
+
+	-- Instantiate the all-pass filter
+	all_pass_inst : all_pass_filter
+	GENERIC MAP(
+		TDATA_WIDTH => TDATA_WIDTH
+	)
+	PORT MAP(
+		aclk => aclk,
+		aresetn => aresetn,
+
+		s_axis_tvalid => all_pass_s_tvalid,
+		s_axis_tdata => s_axis_tdata,
+		s_axis_tlast => s_axis_tlast,
+		s_axis_tready => all_pass_s_tready,
+
+		m_axis_tvalid => all_pass_m_tvalid,
+		m_axis_tdata => all_pass_m_tdata,
+		m_axis_tlast => all_pass_m_tlast,
+		m_axis_tready => all_pass_m_tready
+	);
+
+	-- Instantiate the moving average filter
+	moving_avg_inst : moving_average_filter
+	GENERIC MAP(
+		FILTER_ORDER_POWER => FILTER_ORDER_POWER,
+		TDATA_WIDTH => TDATA_WIDTH
+	)
+	PORT MAP(
+		aclk => aclk,
+		aresetn => aresetn,
+
+		s_axis_tvalid => moving_avg_s_tvalid,
+		s_axis_tdata => s_axis_tdata,
+		s_axis_tlast => s_axis_tlast,
+		s_axis_tready => moving_avg_s_tready,
+
+		m_axis_tvalid => moving_avg_m_tvalid,
+		m_axis_tdata => moving_avg_m_tdata,
+		m_axis_tlast => moving_avg_m_tlast,
+		m_axis_tready => moving_avg_m_tready
+	);
+
+	-- Assign filter control signals based on enable_filter
+	all_pass_s_tvalid    <= s_axis_tvalid WHEN enable_filter = '0' ELSE '0';
+	moving_avg_s_tvalid  <= s_axis_tvalid WHEN enable_filter = '1' ELSE '0';
+
+	all_pass_m_tready    <= m_axis_tready WHEN enable_filter = '0' ELSE '0';
+	moving_avg_m_tready  <= m_axis_tready WHEN enable_filter = '1' ELSE '0';
+
+	-- Main AXIS assignments based on enable_filter
+	s_axis_tready        <= all_pass_s_tready   WHEN enable_filter = '0' ELSE moving_avg_s_tready;
+	m_axis_tvalid        <= all_pass_m_tvalid   WHEN enable_filter = '0' ELSE moving_avg_m_tvalid;
+	m_axis_tdata         <= all_pass_m_tdata    WHEN enable_filter = '0' ELSE moving_avg_m_tdata;
+	m_axis_tlast         <= all_pass_m_tlast    WHEN enable_filter = '0' ELSE moving_avg_m_tlast;
+
+END Behavioral;