|
|
------------------------------------------------------------------------------
|
|
|
-- 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
|
|
|
-------------------------------------------------------------------------------
|
|
|
-- Gene_SYNC.vhd
|
|
|
library IEEE;
|
|
|
use IEEE.std_logic_1164.all;
|
|
|
use IEEE.numeric_std.all;
|
|
|
|
|
|
entity Gene_SYNC is
|
|
|
|
|
|
port(
|
|
|
SCLK,raz : in std_logic;
|
|
|
enable : in std_logic;
|
|
|
-- Sysclk : in std_logic;
|
|
|
OKAI_send : out std_logic;
|
|
|
SYNC : out std_logic
|
|
|
);
|
|
|
|
|
|
end Gene_SYNC;
|
|
|
|
|
|
|
|
|
architecture ar_Gene_SYNC of Gene_SYNC is
|
|
|
|
|
|
--signal Sysclk_reg : std_logic;
|
|
|
signal count : integer;
|
|
|
|
|
|
|
|
|
begin
|
|
|
process (SCLK,raz)
|
|
|
begin
|
|
|
if(raz='0')then
|
|
|
SYNC <= '0';
|
|
|
-- Sysclk_reg <= '0';
|
|
|
count <= 14;
|
|
|
OKAI_send <= '0';
|
|
|
|
|
|
elsif(SCLK' event and SCLK='1')then
|
|
|
if(enable='1')then
|
|
|
|
|
|
-- Sysclk_reg <= Sysclk;
|
|
|
if(count=15)then
|
|
|
SYNC <= '1';
|
|
|
count <= count+1;
|
|
|
elsif(count=16)then
|
|
|
count <= 0;
|
|
|
SYNC <= '0';
|
|
|
OKAI_send <= '1';
|
|
|
else
|
|
|
count <= count+1;
|
|
|
OKAI_send <= '0';
|
|
|
end if;
|
|
|
end if;
|
|
|
end if;
|
|
|
end process;
|
|
|
|
|
|
end ar_Gene_SYNC;
|
