- commit local changes after CVS2SVN

git-svn-id: http://moon:8086/svn/vhdl/trunk@1036 cc03376c-175c-47c8-b038-4cd826a8556b
2014-07-20 13:30:14 +00:00
parent 175cf3a4f4
commit 70e48af3ab
58 changed files with 9720 additions and 9650 deletions
@@ -1,142 +1,142 @@
------------------------------------------------- 
-- Signal Debouncer
-- Jeff Bazinet
-- February 14, 2002
-----------------------------------------------------------------------
-- $Header: /tmp/cvsroot/VHDL/lib/misc/debounce2.vhd,v 1.1 2008-08-23 08:20:29 Jens Exp $
-----------------------------------------------------------------------
-
-
-library ieee; 
-use ieee.std_logic_1164.all;
-library lpm;
-use lpm.lpm_components.lpm_counter;
-
-
-entity debounce is
-	generic(BUFFER_WIDTH:	positive:= 30;
-		CLOCK_DIV: 	positive:= 15
-		);
-	port(	clock:		in std_logic;
-		reset:		in std_logic;
-		signal_in:	in std_logic;
-		signal_out:	out std_logic
-		);
-end entity debounce;
-
-
-architecture rtl of debounce is 
-
-	---------------------------------------------------------------
-	-- SIGNAL DECLARATION
-	---------------------------------------------------------------
-	
-	-- General
-	signal reset_n:	std_logic;
-	
-	-- SLOW CLOCK GENERATION
-	signal clock_reg:	std_logic_vector(CLOCK_DIV-1 downto 0);
-	signal clock_reg_high:	std_logic_vector(CLOCK_DIV-1 downto 1);	
-	signal clock_slow:	std_logic;
-	signal clock_slow_wire:	std_logic;
-	
-	-- DATA BUFFER FILL
-	signal counter_reg:	std_logic_vector(BUFFER_WIDTH-1 downto 0);
-	signal data_buffer_reg:	std_logic_vector(BUFFER_WIDTH-1 downto 0);
-	
-	-- CHECK FOR DEBOUNCE STABILITY
-	signal stable:	std_logic;
-	signal stable_old:	std_logic;
-	signal stable_state_reg:std_logic_vector(BUFFER_WIDTH-1 downto 0);
-	
-	-- PUSH BUTTON ENABLE
-	signal button_pushed:	std_logic;
-	
-	begin
-	
-	---------------------------------------------------------------
-	-- SLOW CLOCK GENERATION
-	---------------------------------------------------------------
-	
-	COUNTER_1: lpm_counter
-		generic map (lpm_width => CLOCK_DIV)
-		port map (
-			clock => clock,
-			sclr => reset_n,
-			cout => clock_slow_wire
-			);
-			
-	process (clock) is
-		begin
-		
-		clock_slow <= clock_slow_wire;
-
-		end process;
-		
-	---------------------------------------------------------------
-	-- DATA BUFFER FILL
-	---------------------------------------------------------------
-	
-	process (clock) is
-		begin
-	
-		if (reset = '0') then
-			-- Initialization
-			data_buffer_reg <= (others => '1');
-		elsif rising_edge(clock_slow) then
-			data_buffer_reg <= data_buffer_reg(BUFFER_WIDTH-2 downto 0) & signal_in;
-		end if;
-	
-	end process;
-	
-	---------------------------------------------------------------
-	-- CHECK FOR DEBOUNCE STABILITY
-	---------------------------------------------------------------
-	
-	process (clock) is
-		begin
-	
-		if (reset = '0') then
-			-- Initialization
-			stable <= '0';
-			stable_old <= '0';
-			stable_state_reg <= (others => '0');
-		elsif rising_edge(clock) then
-			if (data_buffer_reg = stable_state_reg) then
-				stable <= '1';
-				stable_state_reg <= (others => '0');
-			else
-				stable <= '0';
-			end if;
-			stable_old <= stable;
-		end if;
-	
-	end process;
-	 
-	---------------------------------------------------------------
-	-- PUSH BUTTON ENABLE
-	---------------------------------------------------------------
-	
-	process (clock) is
-		begin
-	
-		if (reset = '0') then
-			-- Initialization
-			button_pushed <= '0';
-		elsif rising_edge(clock) then
-			if (stable_old = '0' and stable = '1') then
-				button_pushed <= '1';
-			else
-				button_pushed <= '0';
-			end if;	
-		end if;
-	
-	end process;
-	
-	---------------------------------------------------------------
-	---------------------------------------------------------------
-	 
-	signal_out <= button_pushed;
-	reset_n <= not reset;
-	
-end rtl; 
+------------------------------------------------- 
+-- Signal Debouncer
+-- Jeff Bazinet
+-- February 14, 2002
+-----------------------------------------------------------------------
+-- $Header: D:\usr\cvsroot/VHDL/lib/misc/debounce2.vhd,v 1.1 2008/08/23 08:20:29 Jens Exp $
+-----------------------------------------------------------------------
+
+
+library ieee; 
+use ieee.std_logic_1164.all;
+library lpm;
+use lpm.lpm_components.lpm_counter;
+
+
+entity debounce is
+	generic(BUFFER_WIDTH:	positive:= 30;
+		CLOCK_DIV: 	positive:= 15
+		);
+	port(	clock:		in std_logic;
+		reset:		in std_logic;
+		signal_in:	in std_logic;
+		signal_out:	out std_logic
+		);
+end entity debounce;
+
+
+architecture rtl of debounce is 
+
+	---------------------------------------------------------------
+	-- SIGNAL DECLARATION
+	---------------------------------------------------------------
+	
+	-- General
+	signal reset_n:	std_logic;
+	
+	-- SLOW CLOCK GENERATION
+	signal clock_reg:	std_logic_vector(CLOCK_DIV-1 downto 0);
+	signal clock_reg_high:	std_logic_vector(CLOCK_DIV-1 downto 1);	
+	signal clock_slow:	std_logic;
+	signal clock_slow_wire:	std_logic;
+	
+	-- DATA BUFFER FILL
+	signal counter_reg:	std_logic_vector(BUFFER_WIDTH-1 downto 0);
+	signal data_buffer_reg:	std_logic_vector(BUFFER_WIDTH-1 downto 0);
+	
+	-- CHECK FOR DEBOUNCE STABILITY
+	signal stable:	std_logic;
+	signal stable_old:	std_logic;
+	signal stable_state_reg:std_logic_vector(BUFFER_WIDTH-1 downto 0);
+	
+	-- PUSH BUTTON ENABLE
+	signal button_pushed:	std_logic;
+	
+	begin
+	
+	---------------------------------------------------------------
+	-- SLOW CLOCK GENERATION
+	---------------------------------------------------------------
+	
+	COUNTER_1: lpm_counter
+		generic map (lpm_width => CLOCK_DIV)
+		port map (
+			clock => clock,
+			sclr => reset_n,
+			cout => clock_slow_wire
+			);
+			
+	process (clock) is
+		begin
+		
+		clock_slow <= clock_slow_wire;
+
+		end process;
+		
+	---------------------------------------------------------------
+	-- DATA BUFFER FILL
+	---------------------------------------------------------------
+	
+	process (clock) is
+		begin
+	
+		if (reset = '0') then
+			-- Initialization
+			data_buffer_reg <= (others => '1');
+		elsif rising_edge(clock_slow) then
+			data_buffer_reg <= data_buffer_reg(BUFFER_WIDTH-2 downto 0) & signal_in;
+		end if;
+	
+	end process;
+	
+	---------------------------------------------------------------
+	-- CHECK FOR DEBOUNCE STABILITY
+	---------------------------------------------------------------
+	
+	process (clock) is
+		begin
+	
+		if (reset = '0') then
+			-- Initialization
+			stable <= '0';
+			stable_old <= '0';
+			stable_state_reg <= (others => '0');
+		elsif rising_edge(clock) then
+			if (data_buffer_reg = stable_state_reg) then
+				stable <= '1';
+				stable_state_reg <= (others => '0');
+			else
+				stable <= '0';
+			end if;
+			stable_old <= stable;
+		end if;
+	
+	end process;
+	 
+	---------------------------------------------------------------
+	-- PUSH BUTTON ENABLE
+	---------------------------------------------------------------
+	
+	process (clock) is
+		begin
+	
+		if (reset = '0') then
+			-- Initialization
+			button_pushed <= '0';
+		elsif rising_edge(clock) then
+			if (stable_old = '0' and stable = '1') then
+				button_pushed <= '1';
+			else
+				button_pushed <= '0';
+			end if;	
+		end if;
+	
+	end process;
+	
+	---------------------------------------------------------------
+	---------------------------------------------------------------
+	 
+	signal_out <= button_pushed;
+	reset_n <= not reset;
+	
+end rtl;