|
|
------------------------------------------------------------------------------
|
|
|
-- This file is a part of the LPP VHDL IP LIBRARY
|
|
|
-- Copyright (C) 2009 - 2010, 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
|
|
|
------------------------------------------------------------------------------
|
|
|
library ieee;
|
|
|
use ieee.std_logic_1164.all;
|
|
|
library grlib;
|
|
|
use grlib.amba.all;
|
|
|
use grlib.stdlib.all;
|
|
|
use grlib.devices.all;
|
|
|
library lpp;
|
|
|
use lpp.lpp_amba.all;
|
|
|
use lpp.apb_devices_list.all;
|
|
|
use lpp.lpp_fifo.all;
|
|
|
|
|
|
--! Driver APB, va faire le lien entre l'IP VHDL de la FIFO et le bus Amba
|
|
|
|
|
|
entity APB_FifoWrite is
|
|
|
generic (
|
|
|
pindex : integer := 0;
|
|
|
paddr : integer := 0;
|
|
|
pmask : integer := 16#fff#;
|
|
|
pirq : integer := 0;
|
|
|
abits : integer := 8;
|
|
|
Data_sz : integer := 16;
|
|
|
Addr_sz : integer := 8;
|
|
|
addr_max_int : integer := 256);
|
|
|
port (
|
|
|
clk : in std_logic; --! Horloge du composant
|
|
|
rst : in std_logic; --! Reset general du composant
|
|
|
apbi : in apb_slv_in_type; --! Registre de gestion des entr�es du bus
|
|
|
Flag_RE : in std_logic; --! Demande de lecture de la m�moire, g�r� hors de l'IP
|
|
|
Raddr : in std_logic_vector(addr_sz-1 downto 0); --! Adresse du registre de lecture dans la m�moire
|
|
|
apbo : out apb_slv_out_type --! Registre de gestion des sorties du bus
|
|
|
);
|
|
|
end APB_FifoWrite;
|
|
|
|
|
|
--! @details Gestion de la FIFO uniquement en lecture
|
|
|
|
|
|
architecture ar_APB_FifoWrite of APB_FifoWrite is
|
|
|
|
|
|
--signal ReadEnable : std_logic;
|
|
|
signal WriteEnable : std_logic;
|
|
|
--signal FlagEmpty : std_logic;
|
|
|
signal FlagFull : std_logic;
|
|
|
signal DataIn : std_logic_vector(Data_sz-1 downto 0);
|
|
|
signal DataOut : std_logic_vector(Data_sz-1 downto 0);
|
|
|
signal AddrIn : std_logic_vector(Addr_sz-1 downto 0);
|
|
|
--signal AddrOut : std_logic_vector(Addr_sz-1 downto 0);
|
|
|
|
|
|
begin
|
|
|
|
|
|
APB : ApbDriver
|
|
|
generic map(pindex,paddr,pmask,pirq,abits,LPP_FIFO,Data_sz,Addr_sz,addr_max_int)
|
|
|
port map(clk,rst,open,WriteEnable,open,FlagFull,DataIn,DataOut,AddrIn,AddrOut,apbi,apbo);
|
|
|
|
|
|
|
|
|
MEMORY_WRITE : Top_FifoWrite
|
|
|
generic map(Data_sz,Addr_sz,addr_max_int)
|
|
|
port map(clk,rst,flag_RE,WriteEnable,DataIn,Raddr,FlagFull,AddrIn,DataOut);
|
|
|
|
|
|
|
|
|
end ar_APB_FifoWrite;
|
