HG_REPOSITORIES/LPP/INSTRUMENTATION/VHD_Lib Files · lib/lpp/lpp_Header/HeaderBuilder.vhd

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             HeaderBuilder.vhd
        
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        pellion
    
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              r178
            
      ------------------------------------------------------------------------------

      --  This file is a part of the LPP VHDL IP LIBRARY

      --  Copyright (C) 2009 - 2012, Laboratory of Plasmas Physic - CNRS

      --

      --  This program is free software; you can redistribute it and/or modify

      --  it under the terms of the GNU General Public License as published by

      --  the Free Software Foundation; either version 3 of the License, or

      --  (at your option) any later version.

      --

      --  This program is distributed in the hope that it will be useful,

      --  but WITHOUT ANY WARRANTY; without even the implied warranty of

      --  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

      --  GNU General Public License for more details.

      --

      --  You should have received a copy of the GNU General Public License

      --  along with this program; if not, write to the Free Software

      --  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 

      ------------------------------------------------------------------------------

      --                    Author : Martin Morlot

      --                     Mail : martin.morlot@lpp.polytechnique.fr

      ------------------------------------------------------------------------------

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      LIBRARY IEEE;

      USE IEEE.std_logic_1164.ALL;

      USE IEEE.numeric_std.ALL;

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      ENTITY HeaderBuilder IS

        GENERIC(

          Data_sz : INTEGER := 32);

        PORT(

          clkm : IN STD_LOGIC;

          rstn : IN STD_LOGIC;

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          Statu        : IN  STD_LOGIC_VECTOR(3 DOWNTO 0);

          Matrix_Type  : IN  STD_LOGIC_VECTOR(1 DOWNTO 0);

          Matrix_Write : IN  STD_LOGIC;

          Valid        : OUT STD_LOGIC;

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              r178
            
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          dataIN  : IN  STD_LOGIC_VECTOR((2*Data_sz)-1 DOWNTO 0);

          emptyIN : IN  STD_LOGIC_VECTOR(1 DOWNTO 0);

          RenOUT  : OUT STD_LOGIC_VECTOR(1 DOWNTO 0);

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          dataOUT  : OUT STD_LOGIC_VECTOR(Data_sz-1 DOWNTO 0);

          emptyOUT : OUT STD_LOGIC;

          RenIN    : IN  STD_LOGIC;

        martin
    
Ajout Header

              r174
            
        pellion
    
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          header     : OUT STD_LOGIC_VECTOR(Data_sz-1 DOWNTO 0);

          header_val : OUT STD_LOGIC;

          header_ack : IN  STD_LOGIC

          );

      END ENTITY;

        pellion
    
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        pellion
    
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      ARCHITECTURE ar_HeaderBuilder OF HeaderBuilder IS

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        SIGNAL Matrix_Param : STD_LOGIC_VECTOR(3 DOWNTO 0);

        SIGNAL Write_reg    : STD_LOGIC;

        SIGNAL Data_cpt     : INTEGER;

        SIGNAL MAX          : INTEGER;

        pellion
    
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        pellion
    
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        TYPE   etat IS (idle0, idle1, pong0, pong1);

        SIGNAL ect : etat;

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        pellion
    
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      BEGIN

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        PROCESS (clkm, rstn)

        BEGIN

          IF(rstn = '0')then

            ect                <= idle0;

            Valid              <= '0';

            header_val         <= '0';

            header(5 DOWNTO 0) <= (OTHERS => '0');

            Write_reg          <= '0';

            Data_cpt           <= 0;

            MAX                <= 128;

        pellion
    
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              r178
            
        pellion
    
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              r319
            
          ELSIF(clkm' event AND clkm = '1')then

            Write_reg <= Matrix_Write;

        pellion
    
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              r178
            
        pellion
    
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              r319
            
            IF(Statu = "0001" OR Statu="0011" OR Statu="0110" OR Statu="1010" OR Statu="1111")THEN

              MAX <= 128;

            ELSE

              MAX <= 256;

            END IF;

        pellion
    
temp

              r178
            
        pellion
    
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              r319
            
            IF(Write_reg = '0' AND Matrix_Write = '1')THEN

              Data_cpt <= Data_cpt + 1;

              Valid    <= '0';

            ELSIF(Data_cpt = MAX)THEN

              Data_cpt   <= 0;

              Valid      <= '1';

              header_val <= '1';

            ELSE

              Valid <= '0';

            END IF;

        pellion
    
Fusion avec martin

              r197
            
        pellion
    
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              r319
            
            CASE ect IS

        pellion
    
Fusion avec martin

              r197
            
        pellion
    
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              r319
            
              WHEN idle0 =>

                IF(header_ack = '1')THEN

                  header_val <= '0';

                  ect        <= pong0;

                END IF;

        pellion
    
Fusion avec martin

              r197
            
        pellion
    
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              r319
            
              WHEN pong0 =>

                header(1 DOWNTO 0) <= Matrix_Type;

                header(5 DOWNTO 2) <= Matrix_Param;

                IF(emptyIN(0) = '1')THEN

                  ect <= idle1;

                END IF;

        pellion
    
Fusion avec martin

              r197
            
        pellion
    
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              r319
            
              WHEN idle1 =>

                IF(header_ack = '1')THEN

                  header_val <= '0';

                  ect        <= pong1;

                END IF;

        pellion
    
Fusion avec martin

              r197
            
        pellion
    
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              r319
            
              WHEN pong1 =>

                header(1 DOWNTO 0) <= Matrix_Type;

                header(5 DOWNTO 2) <= Matrix_Param;

                IF(emptyIN(1) = '1')THEN

                  ect <= idle0;

                END IF;

        pellion
    
Fusion avec martin

              r197
            
        pellion
    
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              r319
            
            END CASE;

          END IF;

        END PROCESS;

        pellion
    
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              r178
            
        pellion
    
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              r319
            
        Matrix_Param <= STD_LOGIC_VECTOR(to_unsigned(to_integer(UNSIGNED(Statu))-1, 4));

        pellion
    
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              r178
            
        pellion
    
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        header(31 DOWNTO 6) <= (OTHERS => '0');

        pellion
    
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        pellion
    
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              r319
            
        WITH ect SELECT

          dataOUT <= dataIN(Data_sz-1 DOWNTO 0) WHEN pong0,

          dataIN(Data_sz-1 DOWNTO 0)            WHEN idle0,

          dataIN((2*Data_sz)-1 DOWNTO Data_sz)  WHEN pong1,

          dataIN((2*Data_sz)-1 DOWNTO Data_sz)  WHEN idle1,

          (OTHERS => '0')                       WHEN OTHERS;

        pellion
    
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              r178
            
        pellion
    
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              r319
            
        WITH ect SELECT

          emptyOUT <= emptyIN(0) WHEN pong0,

          emptyIN(0)             WHEN idle0,

          emptyIN(1)             WHEN pong1,

          emptyIN(1)             WHEN idle1,

          '1'                    WHEN OTHERS;

        pellion
    
Fusion avec martin

              r197
            
        pellion
    
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              r319
            
        WITH ect SELECT

          RenOUT <= '1' & RenIN WHEN pong0,

          '1' & RenIN           WHEN idle0,

          RenIN & '1'           WHEN pong1,

          RenIN & '1'           WHEN idle1,

          "11"                  WHEN OTHERS;

        pellion
    
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              r178
            
        pellion
    
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      END ARCHITECTURE;

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pellion temp	r178	------------------------------------------------------------------------------
		-- This file is a part of the LPP VHDL IP LIBRARY
		-- Copyright (C) 2009 - 2012, Laboratory of Plasmas Physic - CNRS
		--
		-- This program is free software; you can redistribute it and/or modify
		-- it under the terms of the GNU General Public License as published by
		-- the Free Software Foundation; either version 3 of the License, or
		-- (at your option) any later version.
		--
		-- This program is distributed in the hope that it will be useful,
		-- but WITHOUT ANY WARRANTY; without even the implied warranty of
		-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		-- GNU General Public License for more details.
		--
		-- You should have received a copy of the GNU General Public License
		-- along with this program; if not, write to the Free Software
		-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
		------------------------------------------------------------------------------
		-- Author : Martin Morlot
		-- Mail : martin.morlot@lpp.polytechnique.fr
		------------------------------------------------------------------------------
pellion temp	r319	LIBRARY IEEE;
		USE IEEE.std_logic_1164.ALL;
		USE IEEE.numeric_std.ALL;
pellion temp	r178
pellion temp	r319	ENTITY HeaderBuilder IS
		GENERIC(
		Data_sz : INTEGER := 32);
		PORT(
		clkm : IN STD_LOGIC;
		rstn : IN STD_LOGIC;
pellion temp	r178
pellion temp	r319	Statu : IN STD_LOGIC_VECTOR(3 DOWNTO 0);
		Matrix_Type : IN STD_LOGIC_VECTOR(1 DOWNTO 0);
		Matrix_Write : IN STD_LOGIC;
		Valid : OUT STD_LOGIC;
pellion temp	r178
pellion temp	r319	dataIN : IN STD_LOGIC_VECTOR((2*Data_sz)-1 DOWNTO 0);
		emptyIN : IN STD_LOGIC_VECTOR(1 DOWNTO 0);
		RenOUT : OUT STD_LOGIC_VECTOR(1 DOWNTO 0);
pellion temp	r178
pellion temp	r319	dataOUT : OUT STD_LOGIC_VECTOR(Data_sz-1 DOWNTO 0);
		emptyOUT : OUT STD_LOGIC;
		RenIN : IN STD_LOGIC;
martin Ajout Header	r174
pellion temp	r319	header : OUT STD_LOGIC_VECTOR(Data_sz-1 DOWNTO 0);
		header_val : OUT STD_LOGIC;
		header_ack : IN STD_LOGIC
		);
		END ENTITY;
pellion temp	r178

pellion temp	r319	ARCHITECTURE ar_HeaderBuilder OF HeaderBuilder IS
pellion temp	r178
pellion temp	r319	SIGNAL Matrix_Param : STD_LOGIC_VECTOR(3 DOWNTO 0);
		SIGNAL Write_reg : STD_LOGIC;
		SIGNAL Data_cpt : INTEGER;
		SIGNAL MAX : INTEGER;
pellion temp	r178
pellion temp	r319	TYPE etat IS (idle0, idle1, pong0, pong1);
		SIGNAL ect : etat;
pellion temp	r178
pellion temp	r319	BEGIN
pellion temp	r178
pellion temp	r319	PROCESS (clkm, rstn)
		BEGIN
		IF(rstn = '0')then
		ect <= idle0;
		Valid <= '0';
		header_val <= '0';
		header(5 DOWNTO 0) <= (OTHERS => '0');
		Write_reg <= '0';
		Data_cpt <= 0;
		MAX <= 128;
pellion temp	r178
pellion temp	r319
		ELSIF(clkm' event AND clkm = '1')then
		Write_reg <= Matrix_Write;
pellion temp	r178
pellion temp	r319	IF(Statu = "0001" OR Statu="0011" OR Statu="0110" OR Statu="1010" OR Statu="1111")THEN
		MAX <= 128;
		ELSE
		MAX <= 256;
		END IF;
pellion temp	r178
pellion temp	r319	IF(Write_reg = '0' AND Matrix_Write = '1')THEN
		Data_cpt <= Data_cpt + 1;
		Valid <= '0';
		ELSIF(Data_cpt = MAX)THEN
		Data_cpt <= 0;
		Valid <= '1';
		header_val <= '1';
		ELSE
		Valid <= '0';
		END IF;
pellion Fusion avec martin	r197

pellion temp	r319	CASE ect IS
pellion Fusion avec martin	r197
pellion temp	r319	WHEN idle0 =>
		IF(header_ack = '1')THEN
		header_val <= '0';
		ect <= pong0;
		END IF;
pellion Fusion avec martin	r197
pellion temp	r319	WHEN pong0 =>
		header(1 DOWNTO 0) <= Matrix_Type;
		header(5 DOWNTO 2) <= Matrix_Param;
		IF(emptyIN(0) = '1')THEN
		ect <= idle1;
		END IF;
pellion Fusion avec martin	r197
pellion temp	r319	WHEN idle1 =>
		IF(header_ack = '1')THEN
		header_val <= '0';
		ect <= pong1;
		END IF;
pellion Fusion avec martin	r197
pellion temp	r319	WHEN pong1 =>
		header(1 DOWNTO 0) <= Matrix_Type;
		header(5 DOWNTO 2) <= Matrix_Param;
		IF(emptyIN(1) = '1')THEN
		ect <= idle0;
		END IF;
pellion Fusion avec martin	r197
pellion temp	r319	END CASE;
		END IF;
		END PROCESS;
pellion temp	r178
pellion temp	r319	Matrix_Param <= STD_LOGIC_VECTOR(to_unsigned(to_integer(UNSIGNED(Statu))-1, 4));
pellion temp	r178
pellion temp	r319	header(31 DOWNTO 6) <= (OTHERS => '0');
pellion temp	r178
pellion temp	r319	WITH ect SELECT
		dataOUT <= dataIN(Data_sz-1 DOWNTO 0) WHEN pong0,
		dataIN(Data_sz-1 DOWNTO 0) WHEN idle0,
		dataIN((2*Data_sz)-1 DOWNTO Data_sz) WHEN pong1,
		dataIN((2*Data_sz)-1 DOWNTO Data_sz) WHEN idle1,
		(OTHERS => '0') WHEN OTHERS;
pellion temp	r178
pellion temp	r319	WITH ect SELECT
		emptyOUT <= emptyIN(0) WHEN pong0,
		emptyIN(0) WHEN idle0,
		emptyIN(1) WHEN pong1,
		emptyIN(1) WHEN idle1,
		'1' WHEN OTHERS;
pellion Fusion avec martin	r197
pellion temp	r319	WITH ect SELECT
		RenOUT <= '1' & RenIN WHEN pong0,
		'1' & RenIN WHEN idle0,
		RenIN & '1' WHEN pong1,
		RenIN & '1' WHEN idle1,
		"11" WHEN OTHERS;
pellion temp	r178
pellion temp	r319	END ARCHITECTURE;