APB_FFT.vhd
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| text/x-vhdl
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VhdlLexer
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r53 | ------------------------------------------------------------------------------ | |
-- 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_fft.all; | |||
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r62 | use lpp.lpp_memory.all; | |
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r53 | use work.fft_components.all; | |
--! Driver APB, va faire le lien entre l'IP VHDL de la FFT et le bus Amba | |||
entity APB_FFT is | |||
generic ( | |||
pindex : integer := 0; | |||
paddr : integer := 0; | |||
pmask : integer := 16#fff#; | |||
pirq : integer := 0; | |||
abits : integer := 8; | |||
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r64 | Data_sz : integer := 32; | |
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r53 | 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 | |||
apbo : out apb_slv_out_type --! Registre de gestion des sorties du bus | |||
); | |||
end APB_FFT; | |||
architecture ar_APB_FFT of APB_FFT is | |||
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r64 | signal ReadEnable : std_logic; | |
signal WriteEnable : std_logic; | |||
signal FlagEmpty : std_logic; | |||
signal FlagFull : std_logic; | |||
signal DataIn_re : std_logic_vector(gWSIZE-1 downto 0); | |||
signal DataOut_re : std_logic_vector(gWSIZE-1 downto 0); | |||
signal DataIn_im : std_logic_vector(gWSIZE-1 downto 0); | |||
signal DataOut_im : std_logic_vector(gWSIZE-1 downto 0); | |||
signal DataIn : std_logic_vector(Data_sz-1 downto 0); | |||
signal DataOut : std_logic_vector(Data_sz-1 downto 0); | |||
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r65 | signal AddrIn : std_logic_vector(Addr_sz-1 downto 0); | |
signal AddrOut : std_logic_vector(Addr_sz-1 downto 0); | |||
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r53 | ||
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r62 | signal start : std_logic; | |
signal load : std_logic; | |||
signal rdy : std_logic; | |||
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r64 | ||
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r53 | begin | |
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r62 | APB : ApbDriver | |
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r53 | generic map(pindex,paddr,pmask,pirq,abits,LPP_FFT,Data_sz,Addr_sz,addr_max_int) | |
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r90 | port map(clk,rst,ReadEnable,WriteEnable,FlagEmpty,FlagFull,DataIn,DataOut,AddrIn,AddrOut,apbi,apbo); | |
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r64 | ||
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r53 | ||
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r62 | Extremum : Flag_Extremum | |
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r65 | port map(clk,rst,load,rdy,FlagFull,FlagEmpty); | |
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r64 | ||
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r62 | ||
DEVICE : CoreFFT | |||
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r53 | generic map( | |
LOGPTS => gLOGPTS, | |||
LOGLOGPTS => gLOGLOGPTS, | |||
WSIZE => gWSIZE, | |||
TWIDTH => gTWIDTH, | |||
DWIDTH => gDWIDTH, | |||
TDWIDTH => gTDWIDTH, | |||
RND_MODE => gRND_MODE, | |||
SCALE_MODE => gSCALE_MODE, | |||
PTS => gPTS, | |||
HALFPTS => gHALFPTS, | |||
inBuf_RWDLY => gInBuf_RWDLY) | |||
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r65 | port map(clk,start,rst,WriteEnable,ReadEnable,DataIn_im,DataIn_re,load,open,DataOut_im,DataOut_re,open,rdy); | |
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r64 | ||
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r65 | start <= not rst; | |
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r64 | ||
DataIn_re <= DataIn(31 downto 16); | |||
DataIn_im <= DataIn(15 downto 0); | |||
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r65 | DataOut <= DataOut_re & DataOut_im; | |
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r53 | ||
end ar_APB_FFT; |