Subversion Repositories astron_r2sdf_fft

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--
-- Copyright 2020
-- ASTRON (Netherlands Institute for Radio Astronomy) <http://www.astron.nl/>
-- P.O.Box 2, 7990 AA Dwingeloo, The Netherlands
-- 
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
-- 
--     http://www.apache.org/licenses/LICENSE-2.0
-- 
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
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-- Purpose:
-- Description:
--   Generates FFT testbenches (tb_rTwoSDF) for various g_in_dat_w and
--   g_nof_points. Note that twiddlePkg.vhd must be generated for the largest
--   value of g_nof_points used in this structure.
 
library ieee, common_pkg_lib;
use IEEE.std_logic_1164.all;
use IEEE.std_logic_unsigned.all;
use IEEE.numeric_std.all;
use IEEE.std_logic_textio.all;
use STD.textio.all;
use common_pkg_lib.common_pkg.all;
use work.rTwoSDFPkg.all;
 
 
entity tb_tb_rTwoSDF is
end entity tb_tb_rTwoSDF;
 
architecture tb of tb_tb_rTwoSDF is
 
  signal tb_end : std_logic := '0';  -- declare tb_end to avoid 'No objects found' error on 'when -label tb_end'
 
begin
 
--  -- generics for tb
--  g_use_uniNoise_file : boolean  := true;
--  g_in_en             : natural  := 0;     -- 1 = always active, others = random control
--  -- generics for rTwoSDF
--  g_use_reorder       : boolean  := true;
--  g_nof_points        : natural  := 1024;
--  g_in_dat_w          : natural  := 8;   
--  g_out_dat_w         : natural  := 14;   
--  g_guard_w           : natural  := 2      -- guard bits are used to avoid overflow in single FFT stage.   
 
  --u_act_impulse_16p_16i_16o         : entity work.tb_rTwoSDF generic map (false, 1,  true,   16, 16, 16, 2);
  u_act_noise_1024p_8i_14o          : entity work.tb_rTwoSDF generic map (true,  1,  true, 1024,  8, 14, 2);
  u_rnd_noise_1024p_8i_14o          : entity work.tb_rTwoSDF generic map (true,  0,  true, 1024,  8, 14, 2);
  u_rnd_noise_1024p_8i_14o_flipped  : entity work.tb_rTwoSDF generic map (true,  0, false, 1024,  8, 14, 2);
 
end tb;