@@ -0,0 +1,97 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE ieee.numeric_std.ALL; | |||
USE work.PFB_PKG.ALL; | |||
USE work.POLY_FIR_PKG.ALL; | |||
USE work.FIVEn_DFT_PKG.ALL; | |||
ENTITY PFB_blk IS | |||
PORT ( | |||
i_clk : IN std_logic; | |||
i_data : IN vect_adc_data_out_pfb; | |||
i_coeffs : IN vect_polyfir_coeffs_in; | |||
o_data : OUT vect_dft_output_pfb); | |||
END ENTITY PFB_blk; | |||
ARCHITECTURE polyfir_dft OF PFB_blk IS | |||
TYPE matrix_polyfir_data_out_transpose IS ARRAY (0 TO cst_nb_parallel_firs_dfts_pfb-1) OF vect_dft_input; | |||
TYPE matrix_dft_output_pfb IS ARRAY (0 TO cst_nb_parallel_firs_dfts_pfb-1) OF vect_dft_output; | |||
SIGNAL input_polyfir_re : vect_adc_data_out := (OTHERS => (OTHERS => '0')); | |||
SIGNAL input_polyfir_im : vect_adc_data_out := (OTHERS => (OTHERS => '0')); | |||
SIGNAL matrix_out_polyfir_re : matrix_fir_data_out := (OTHERS => (OTHERS => (OTHERS => '0'))); | |||
SIGNAL matrix_out_polyfir_im : matrix_fir_data_out := (OTHERS => (OTHERS => (OTHERS => '0'))); | |||
SIGNAL matrix_out_dft_re : matrix_dft_output_pfb := (OTHERS => (OTHERS => (OTHERS => '0'))); | |||
SIGNAL matrix_out_dft_im : matrix_dft_output_pfb := (OTHERS => (OTHERS => (OTHERS => '0'))); | |||
SIGNAL matrix_polyfir_out_transpose_re : matrix_polyfir_data_out_transpose := (OTHERS => (OTHERS => ( OTHERS => '0'))); | |||
SIGNAL matrix_polyfir_out_transpose_im : matrix_polyfir_data_out_transpose := (OTHERS => (OTHERS => ( OTHERS => '0'))); | |||
BEGIN -- ARCHITECTURE polyfir_dft | |||
-- purpose: wiring: placing imaginary and real part in different vectors. | |||
inputs_discriminating_real_imag : FOR i IN 0 TO cst_nb_samples_adc_in_pfb-1 GENERATE | |||
input_polyfir_re(i) <= i_data(2*i); | |||
input_polyfir_im(i) <= i_data(2*i+1); | |||
END GENERATE inputs_discriminating_real_imag; | |||
-- instanciation of 2 polyphase filter (imaginary and real part) | |||
polyfir_blk_re : ENTITY work.poly_fir_blk(polyphase) | |||
PORT MAP( | |||
i_clk => i_clk, | |||
i_coeffs => i_coeffs, | |||
i_data => input_polyfir_re, | |||
o_data => matrix_out_polyfir_re); | |||
polyfir_blk_im : ENTITY work.poly_fir_blk(polyphase) | |||
PORT MAP( | |||
i_clk => i_clk, | |||
i_coeffs => i_coeffs, | |||
i_data => input_polyfir_im, | |||
o_data => matrix_out_polyfir_im); | |||
-- purpose: wiring: transpose the polyfir matrixes | |||
transpose_for: FOR i IN 0 TO cst_nb_parallel_firs_dfts_pfb-1 GENERATE | |||
transpose_data: FOR j IN 0 TO cst_nb_subfilters_pfb-1 GENERATE | |||
matrix_polyfir_out_transpose_re(i)(j) <= matrix_out_polyfir_re(j)(i); | |||
matrix_polyfir_out_transpose_im(i)(j) <= matrix_out_polyfir_im(j)(i); | |||
END GENERATE transpose_data; | |||
END GENERATE transpose_for; | |||
-- instanciation of cst_nb_parallel_firs_dfts_pfb dfts | |||
instanciating_parallel_dfts : FOR i IN 0 TO cst_nb_parallel_firs_dfts_pfb-1 GENERATE | |||
dft_inst : ENTITY work.FFT_tree(instanciating_cells) | |||
GENERIC MAP ( | |||
nb_bits_shift_round => cst_nb_bits_shift_round_pfb) | |||
PORT MAP( | |||
i_clk => i_clk, | |||
i_data_re => matrix_polyfir_out_transpose_re(i), | |||
i_data_im => matrix_polyfir_out_transpose_im(i), | |||
o_data_re => matrix_out_dft_re(i), | |||
o_data_im => matrix_out_dft_im(i) | |||
); | |||
END GENERATE instanciating_parallel_dfts; | |||
-- purpose: wiring: placing imaginary part and real part every other sample | |||
fill_vect_output : FOR parallel_dft_nb IN 0 TO cst_nb_parallel_firs_dfts_pfb-1 GENERATE | |||
fill_line_from_matrix : FOR dft_sample_nb IN 0 TO cst_nb_subfilters_pfb-1 GENERATE | |||
o_data(2*dft_sample_nb+parallel_dft_nb*2*cst_nb_subfilters_pfb) <= matrix_out_dft_re(parallel_dft_nb)(dft_sample_nb); | |||
o_data(2*dft_sample_nb+parallel_dft_nb*2*cst_nb_subfilters_pfb +1) <= matrix_out_dft_im(parallel_dft_nb)(dft_sample_nb); | |||
END GENERATE fill_line_from_matrix; | |||
END GENERATE fill_vect_output; | |||
END ARCHITECTURE polyfir_dft; |
@@ -0,0 +1,52 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE ieee.std_logic_signed.ALL; | |||
USE ieee.numeric_std.ALL; | |||
USE work.used_functions_pkg.ALL; | |||
PACKAGE PFB_PKG IS | |||
-- NOTES and PACKAGES INSTRUCTIONS : | |||
-- please cf. sub_packages instructions | |||
-- | |||
-- this block takes real and imaginary part every other sample, for a total | |||
-- of 2*cst_nb_samples_adc_in_pfb samples in input. | |||
-- does not work yet for 20 subfilters (fir to be re-tested?) | |||
-- input | |||
CONSTANT cst_w_in_pfb : natural := 6; | |||
CONSTANT cst_w_out_pfb : natural := 6; | |||
CONSTANT cst_nb_samples_adc_in_pfb : natural := 80; -- a complete sample is a real AND an imag (both following) | |||
-- polyphase filter | |||
CONSTANT cst_w_coeffs_polyfir_pfb : natural := 8; -- polyfir coeffs bitwidth | |||
CONSTANT cst_nb_coeffs_polyfir_pfb : natural := 200; | |||
CONSTANT cst_polyfir_downsampling_factor_pfb : natural := 8; | |||
-- dft | |||
CONSTANT cst_nb_subfilters_pfb : natural := 10; | |||
CONSTANT cst_w_precision_winograd5_coeffs_pfb : natural := 8; -- dft winograd coeffs bitwidth | |||
CONSTANT cst_w_precision_radix2_coeffs_pfb : natural := 8; -- dft butterfly coeffs bitwidth | |||
CONSTANT cst_nb_bits_shift_round_pfb : natural := 19; -- the number of MSBs to avoid (sign bits) before rounding. For cst_nb_subfilters_pfb=10, 19 works well; for cst_nb_subfilters_pfb=20, 23 should work well. See bellow for a potential correct formula, but please test for your application, don't trust this formula. | |||
-- calculations -- | |||
CONSTANT cst_log2_sup_nb_coeffs_subfilter_pfb : natural := log2_sup_integer(number => cst_nb_coeffs_polyfir_pfb/cst_nb_subfilters_pfb); | |||
CONSTANT cst_w_polyfir_out_dft_in_pfb : natural := cst_w_in_pfb + cst_w_coeffs_polyfir_pfb+cst_log2_sup_nb_coeffs_subfilter_pfb; | |||
CONSTANT cst_log2_nb_parallel_winograd_pfb : natural := log2_sup_integer(number => cst_nb_subfilters_pfb/5); | |||
CONSTANT cst_nb_parallel_firs_dfts_pfb : natural := cst_nb_samples_adc_in_pfb/cst_polyfir_downsampling_factor_pfb; | |||
--CONSTANT cst_nb_bits_shift_round_pfb : natural := 15+4*cst_log2_nb_parallel_winograd_pfb; -- potential corect formula | |||
-- TYPES | |||
SUBTYPE smpl_real_imag_adc_data_in_pfb IS std_logic_vector(cst_w_in_pfb-1 DOWNTO 0); | |||
SUBTYPE smpl_real_imag_polyfir_out_dft_in_pfb IS std_logic_vector(cst_w_polyfir_out_dft_in_pfb-1 DOWNTO 0); | |||
SUBTYPE smpl_real_imag_dft_out_pfb IS std_logic_vector(cst_w_out_pfb-1 DOWNTO 0); | |||
--TYPE vect_fir_out_dft_in_pfb IS ARRAY (0 TO cst_nb_subfilters_pfb-1) OF smpl_real_imag_polyfir_out_dft_in_pfb; | |||
TYPE vect_adc_data_out_pfb IS ARRAY (0 TO 2*cst_nb_samples_adc_in_pfb-1) OF smpl_real_imag_adc_data_in_pfb; | |||
TYPE vect_dft_output_pfb IS ARRAY (0 TO 2*cst_nb_parallel_firs_dfts_pfb*cst_nb_subfilters_pfb-1) OF smpl_real_imag_dft_out_pfb; | |||
END PACKAGE PFB_PKG; | |||
@@ -0,0 +1,142 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE ieee.numeric_std.ALL; | |||
USE work.PFB_PKG.ALL; | |||
USE work.POLY_FIR_PKG.ALL; | |||
USE work.FIVEn_DFT_PKG.ALL; | |||
USE work.simu_pkg.ALL; | |||
USE work.utils.ALL; | |||
LIBRARY std; | |||
USE std.textio.ALL; | |||
USE work.coeff_fir.ALL; | |||
ENTITY pfb_tb IS | |||
GENERIC ( | |||
demi_periode : time := 5 ns; | |||
-- duree de la demi periode des horloges | |||
test_e : string := "D:\Stage\ALMA_OPFB\simu\v0.1 - PFB\tb_txts_files\input.txt"; | |||
-- fichier test contenant les echantillons d'entree | |||
test_s : string := "D:\Stage\ALMA_OPFB\simu\v0.1 - PFB\tb_txts_files\output.txt" | |||
-- fichier contenant les echantillons de sortie | |||
); | |||
END pfb_tb; | |||
ARCHITECTURE beh OF pfb_tb IS | |||
TYPE verif_vect IS ARRAY (0 TO 2*cst_nb_parallel_firs_dfts_pfb*cst_nb_subfilters_pfb-1) OF integer; | |||
--TYPE partial_input_vect IS ARRAY (0 TO 9) OF smpl_in_5ndft; | |||
--TYPE partial_output_vect IS ARRAY (0 TO 9) OF smpl_in_5ndft; | |||
--TYPE vect_from_matrix_fir_data_out IS ARRAY (0 TO cst_nb_subfilters*cst_nb_parallel_firs-1) OF smpl_fir_data_out; | |||
FILE fichier_e : text IS IN test_e; | |||
FILE fichier_s : text IS IN test_s; | |||
--FILE fichier_c : text IS IN test_c; | |||
SIGNAL initialisation : std_logic; | |||
SIGNAL h : std_logic; | |||
SIGNAL entree_pfb : vect_adc_data_out_pfb := (OTHERS => (OTHERS => '0')); | |||
SIGNAL sortie_pfb : vect_dft_output_pfb := (OTHERS => (OTHERS => '0')); | |||
SIGNAL sortie_pfb_sim : vect_dft_output_pfb := (OTHERS => (OTHERS => '0')); | |||
SIGNAL verif : verif_vect; | |||
BEGIN -- ARCHITECTURE beh | |||
module_simu : ENTITY work.pfb_blk(polyfir_dft) | |||
PORT MAP(h, entree_pfb, fir_coeffs_generated, sortie_pfb_sim); | |||
horloge_entree : horloge(h, demi_periode, demi_periode); | |||
--sortie_dft_sim_process : PROCESS(sortie_dft_sim) | |||
-- VARIABLE mots_lignes : natural := 20; | |||
--BEGIN | |||
----FOR k IN 0 TO mots_lignes-1 LOOP | |||
---- FOR j IN 0 TO cst_nb_subfilters-1 LOOP | |||
---- sortie_fir_sim_vect(k*mots_lignes+j) <= sortie_fir_sim(j)(k); | |||
---- END LOOP; | |||
----END LOOP; | |||
--END PROCESS; | |||
source : PROCESS | |||
CONSTANT header : natural := 1; -- nombre de ligne d'en tête | |||
CONSTANT nbr_ech : natural := 800000; -- nombre d'echantillons d'entree dans le fichier test | |||
CONSTANT mots_ligne : natural := 2*cst_nb_samples_adc_in_pfb; -- nombre de mots par ligne dans le ficher | |||
VARIABLE nbr_ligne : natural := 10000; -- nombre de lignes restant à lire dans le fichier | |||
VARIABLE i : natural := 1; | |||
VARIABLE donnee : integer; | |||
VARIABLE tempo : natural := 0; | |||
VARIABLE ligne : line; | |||
VARIABLE head : boolean := false; | |||
BEGIN -- PROCESS source | |||
WAIT UNTIL falling_edge(h); | |||
IF head = true THEN | |||
head := false; | |||
FOR i IN 0 TO header-1 LOOP | |||
readline(fichier_e, ligne); | |||
END LOOP; | |||
END IF; | |||
IF tempo > 0 THEN -- temps de synchro | |||
tempo := tempo -1; | |||
ELSIF nbr_ligne > 0 THEN | |||
readline(fichier_e, ligne); | |||
nbr_ligne := nbr_ligne-1; | |||
FOR k IN 0 TO mots_ligne -1 LOOP | |||
read(ligne, donnee); | |||
entree_pfb(k) <= std_logic_vector(to_signed(donnee, cst_w_in_pfb)); | |||
END LOOP; -- k | |||
END IF; | |||
END PROCESS source; | |||
test : PROCESS | |||
CONSTANT header : natural := 1; -- nombre de ligne d'en tête | |||
CONSTANT nbr_ech : natural := 1000000; --nombre d'echantillons d'entree dans le fichier test | |||
CONSTANT mots_ligne : natural := 2*cst_nb_parallel_firs_dfts_pfb*cst_nb_subfilters_pfb; -- nombre de mots par ligne dans le ficher | |||
VARIABLE nbr_ligne : natural := 10000; -- nombre de lignes restant à lire dans le fichier | |||
VARIABLE i : natural; | |||
VARIABLE donnee : donnee_sortie; | |||
VARIABLE ligne : line; | |||
VARIABLE tempo : natural := 17; | |||
VARIABLE sortie : integer; | |||
VARIABLE head : boolean := false; | |||
BEGIN -- PROCESS test | |||
WAIT UNTIL falling_edge(h); | |||
IF tempo > 0 THEN -- temps de synchro | |||
tempo := tempo -1; | |||
ASSERT false REPORT "Attente_2 ... " SEVERITY note; | |||
ELSIF nbr_ligne > 0 THEN | |||
readline(fichier_s, ligne); | |||
nbr_ligne := nbr_ligne-1; | |||
FOR k IN 0 TO mots_ligne-1 LOOP | |||
read(ligne, donnee(k)); | |||
sortie := to_integer(signed(sortie_pfb_sim(k))); | |||
sortie_pfb(k) <= std_logic_vector(to_signed(donnee(k), cst_w_out_pfb)); | |||
verif(k) <= sortie-donnee(k); | |||
ASSERT verif(k) = 0 REPORT "Valeur dft fausse" | |||
SEVERITY error; | |||
--ASSERT sortie /= donnee(k) REPORT "OK" | |||
-- SEVERITY note; | |||
END LOOP; -- k | |||
END IF; | |||
END PROCESS test; | |||
END ARCHITECTURE beh; |
@@ -0,0 +1,73 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE work.POLY_FIR_PKG.ALL; | |||
ENTITY poly_fir_blk IS | |||
PORT ( | |||
i_clk : IN std_logic; | |||
i_coeffs : IN vect_polyfir_coeffs_in; | |||
i_data : IN vect_adc_data_out; | |||
o_data : OUT matrix_fir_data_out); | |||
END ENTITY poly_fir_blk; | |||
ARCHITECTURE polyphase OF poly_fir_blk IS | |||
SIGNAL matrix3D_reg_out_simple_rif_in : matrix3D_reg_data_out := (OTHERS => (OTHERS => (OTHERS => (OTHERS => '0')))); | |||
SIGNAL matrix_coeffs : matrix_fir_coeffs_in := (OTHERS => (OTHERS => (OTHERS => '0'))); | |||
SIGNAL matrix_fir_out : matrix_fir_data_out := (OTHERS => (OTHERS => (OTHERS => '0'))); | |||
BEGIN -- ARCHITECTURE polyphase | |||
--purpose: fill the polyphase coefficients into a 2D matrix from the filter vector (1D) | |||
fill_coeff : PROCESS(i_coeffs) -- rearrange coeffs into a matrix | |||
VARIABLE coeff_nb : natural; | |||
VARIABLE sf_coeff : natural; | |||
VARIABLE subfilter_nb : natural; | |||
BEGIN | |||
coeff_nb := 0; | |||
sf_coeff := 0; | |||
subfilter_nb := 0; | |||
coeff_for_matrix : FOR coeff_nb IN 0 TO cst_nb_coeffs_filter_in-1 LOOP | |||
matrix_coeffs(subfilter_nb)(sf_coeff) <= i_coeffs(coeff_nb); | |||
subfilter_nb := subfilter_nb+1; | |||
IF (subfilter_nb = cst_nb_subfilters) THEN | |||
sf_coeff := sf_coeff+1; | |||
subfilter_nb := 0; | |||
END IF; | |||
END LOOP coeff_for_matrix; | |||
END PROCESS fill_coeff; | |||
-- instanciation of the shift-reg for polyphasd filter | |||
shift_reg_inst : ENTITY work.POLY_SHIFT_REG(Fill_Matrix) | |||
PORT MAP (i_clk => i_clk, | |||
i_data => i_data, | |||
o_data => matrix3D_reg_out_simple_rif_in | |||
); | |||
-- instanciation of the (cst_nb_subfilters) subfilters | |||
simple_fir_inst_loop : FOR i IN 0 TO cst_nb_subfilters-1 GENERATE | |||
simple_fir_inst : ENTITY work.TREE_FIR(Simple_Fir) | |||
PORT MAP(i_clk => i_clk, | |||
i_coeffs => matrix_coeffs(i), | |||
i_data => matrix3D_reg_out_simple_rif_in(i), | |||
o_data => matrix_fir_out(i) | |||
); | |||
END GENERATE simple_fir_inst_loop; | |||
o_data <= matrix_fir_out; | |||
END ARCHITECTURE polyphase; |
@@ -0,0 +1,108 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE ieee.numeric_std.ALL; | |||
USE ieee.std_logic_unsigned.ALL; | |||
USE ieee.std_logic_signed.ALL; | |||
USE work.PFB_PKG.ALL; | |||
PACKAGE POLY_FIR_PKG IS | |||
-- NOTES and PACKAGE INSTRUCTIONS : | |||
-- cst_downsampling_factor must be a multiplier OF cst_nb_samples_adc_in | |||
-- and cst_nb_subfilters/cst_nb_samples_adc_in*cst_downsampling_factor must be an integer | |||
-- with cst_downsampling_factor < or = cst_nb_subfilters. | |||
-- | |||
-- INPUT : vector of samples (cst_nb_samples_adc_in samples); | |||
-- OUTPUT : 2D matrix of samples (matrix_fir_data_out(y)(x), with y the | |||
-- subfilter number, and x the xth parallel fir); | |||
-- | |||
-- the lower parallel fir, the older result. | |||
-- -- CONSTANTS -- -- | |||
-- ADC | |||
CONSTANT cst_w_in : natural := cst_w_in_pfb ; -- ADC in bitwidth | |||
CONSTANT cst_w_out : natural := cst_w_polyfir_out_dft_in_pfb; | |||
CONSTANT cst_nb_samples_adc_in : natural := cst_nb_samples_adc_in_pfb; -- ADC in nb samples | |||
-- FILTER | |||
--coefficients | |||
CONSTANT cst_w_coeff : natural := cst_w_coeffs_polyfir_pfb; -- coeffs bitwidth | |||
CONSTANT cst_nb_coeffs_filter_in : natural := cst_nb_coeffs_polyfir_pfb; | |||
-- FIR | |||
CONSTANT cst_downsampling_factor : natural := cst_polyfir_downsampling_factor_pfb; | |||
-- POLYPHASE FILTER | |||
CONSTANT cst_nb_subfilters : natural := cst_nb_subfilters_pfb; | |||
-- -- CALCULATIONS -- -- | |||
-- SHIFT REG | |||
CONSTANT cst_nb_coeffs_subfilter_in : natural := cst_nb_coeffs_filter_in/cst_nb_subfilters; | |||
CONSTANT cst_log2_sup_nb_coeffs_subfilter_in : natural := cst_log2_sup_nb_coeffs_subfilter_pfb; | |||
CONSTANT cst_nb_samples_shiftreg_temp_in : natural := cst_nb_coeffs_subfilter_in + cst_nb_samples_adc_in/cst_downsampling_factor; | |||
-- mult | |||
CONSTANT cst_w_mult_out : natural := cst_w_coeff+cst_w_in; | |||
-- adder | |||
CONSTANT cst_log2_adder_stages : natural := cst_log2_sup_nb_coeffs_subfilter_in; | |||
-- fir | |||
CONSTANT cst_w_fir_adder_out : natural := cst_w_mult_out+cst_log2_adder_stages; | |||
CONSTANT cst_nb_parallel_firs : natural := cst_nb_parallel_firs_dfts_pfb; | |||
-- TYPES | |||
-- ADC | |||
SUBTYPE smpl_adc_data_in IS smpl_real_imag_adc_data_in_pfb; | |||
SUBTYPE smpl_fir_data_out IS smpl_real_imag_polyfir_out_dft_in_pfb; | |||
-- SHIFT REG | |||
TYPE vect_adc_data_out IS ARRAY (0 TO cst_nb_samples_adc_in-1) OF smpl_adc_data_in; | |||
TYPE vect_fir_data_in IS ARRAY(0 TO cst_nb_coeffs_subfilter_in-1) OF smpl_adc_data_in; | |||
TYPE vect_reg_data IS ARRAY(0 TO cst_nb_samples_shiftreg_temp_in-1) OF smpl_adc_data_in; | |||
TYPE matrix_reg_data IS ARRAY(0 TO cst_nb_subfilters-1) OF vect_reg_data; | |||
TYPE matrix_reg_data_out IS ARRAY(0 TO cst_nb_parallel_firs-1) OF vect_fir_data_in; | |||
TYPE matrix3D_reg_data_out IS ARRAY (0 TO cst_nb_subfilters-1) OF matrix_reg_data_out; | |||
-- FILTER | |||
SUBTYPE smpl_coeff IS std_logic_vector(cst_w_coeff-1 DOWNTO 0); | |||
-- mult | |||
SUBTYPE smpl_mult_data_out IS std_logic_vector(cst_w_mult_out-1 DOWNTO 0); | |||
SUBTYPE smpl_mult_data_out_signed IS signed(cst_w_mult_out-1 DOWNTO 0); | |||
SUBTYPE smpl_coeffs_signed IS signed(cst_w_coeff-1 DOWNTO 0); | |||
SUBTYPE smpl_mult_data_in_signed IS signed(cst_w_in-1 DOWNTO 0); | |||
TYPE vect_polyfir_coeffs_in IS ARRAY (0 TO cst_nb_coeffs_filter_in-1) OF smpl_coeff; | |||
TYPE vect_data_mult_in_signed IS ARRAY(0 TO cst_nb_coeffs_subfilter_in-1) OF smpl_mult_data_in_signed; | |||
TYPE vect_fir_coeffs_in IS ARRAY(0 TO cst_nb_coeffs_subfilter_in-1) OF smpl_coeff; | |||
TYPE vect_mult_coeffs_signed IS ARRAY(0 TO cst_nb_coeffs_subfilter_in-1) OF smpl_coeffs_signed; | |||
TYPE vect_mult_data_out IS ARRAY(0 TO cst_nb_coeffs_subfilter_in-1) OF smpl_mult_data_out; | |||
TYPE vect_mult_data_out_signed IS ARRAY(0 TO cst_nb_coeffs_subfilter_in-1) OF smpl_mult_data_out_signed; | |||
TYPE matrix_fir_coeffs_in IS ARRAY (0 TO cst_nb_subfilters-1) OF vect_fir_coeffs_in; | |||
-- adder | |||
TYPE vect_adder_generic IS ARRAY(0 TO 2**(cst_log2_adder_stages)-1) OF std_logic_vector(cst_w_fir_adder_out-1 DOWNTO 0); | |||
TYPE vect_adder_generic_signed IS ARRAY(0 TO 2**(cst_log2_adder_stages)-1) OF signed(cst_w_fir_adder_out-1 DOWNTO 0); | |||
TYPE matrix_adder_generic IS ARRAY(0 TO cst_log2_adder_stages) OF vect_adder_generic; | |||
TYPE matrix_adder_generic_signed IS ARRAY(0 TO cst_log2_adder_stages) OF vect_adder_generic_signed; | |||
-- fir | |||
SUBTYPE smpl_fir_adder_data_out IS std_logic_vector(cst_w_fir_adder_out-1 DOWNTO 0); | |||
TYPE vect_fir_adder_data_out IS ARRAY (0 TO cst_nb_parallel_firs-1) OF smpl_fir_adder_data_out; | |||
TYPE vect_fir_data_out IS ARRAY(0 TO cst_nb_parallel_firs-1) OF smpl_fir_data_out; | |||
-- POLYPHASE FILTER | |||
TYPE matrix_fir_data_out IS ARRAY (0 TO cst_nb_subfilters-1) OF vect_fir_data_out; | |||
END; |