@@ -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; |