@@ -0,0 +1,34 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE ieee.numeric_std.ALL; | |||
USE work.POLY_FIR_PKG.ALL; | |||
ENTITY add_blk IS | |||
GENERIC(w_out : IN natural); | |||
PORT(i_clk : IN std_logic; | |||
i_data1 : IN smpl_adder_generic; | |||
i_data2 : IN smpl_adder_generic; | |||
o_data : OUT smpl_fir_adder_data_out | |||
); | |||
END add_blk; | |||
ARCHITECTURE add OF add_blk IS | |||
SIGNAL smpl_stages_out : smpl_adder_generic := (OTHERS => '0'); | |||
BEGIN -- ARCHITECTURE add | |||
-- purpose: creates the add process for the adding tree | |||
-- type : sequential | |||
-- inputs : i_clk, i_data1, i_data2 | |||
-- outputs: o_data | |||
adding_process : PROCESS (i_clk) IS | |||
BEGIN -- PROCESS adding_process | |||
IF rising_edge(i_clk) THEN -- rising clock edge | |||
smpl_stages_out(w_out DOWNTO 0) <= std_logic_vector(unsigned(signed(i_data1(w_out-1)&i_data1(w_out-1 DOWNTO 0))+signed(i_data2(w_out-1)&i_data2(w_out-1 DOWNTO 0)))); | |||
END IF; | |||
END PROCESS adding_process; | |||
o_data <= smpl_stages_out; | |||
END ARCHITECTURE add; |
@@ -0,0 +1,42 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE ieee.numeric_std.ALL; | |||
USE work.POLY_FIR_PKG.ALL; | |||
ENTITY MULT_BLK IS | |||
PORT(i_clk : IN std_logic; | |||
i_data : IN vect_fir_data_in; | |||
i_coeffs : IN vect_fir_coeffs_in; | |||
o_data : OUT vect_mult_data_out | |||
); | |||
END MULT_BLK; | |||
ARCHITECTURE Mult_Path OF MULT_BLK IS | |||
SIGNAL data_mult_signed : vect_mult_data_out_signed; | |||
SIGNAL coeffs_signed : vect_mult_coeffs_signed; | |||
SIGNAL data_signed : vect_data_mult_in_signed; | |||
BEGIN | |||
-- purpose: wiring: cast the i_data and i_coeffs into signed | |||
cast : FOR i IN 0 TO cst_nb_coeffs_subfilter_in-1 GENERATE | |||
data_signed(i) <= signed(i_data(i)); | |||
coeffs_signed(i) <= signed(i_coeffs(i)); | |||
END GENERATE cast; | |||
-- purpose: calculate and send cast result to output | |||
mult : PROCESS(i_clk) | |||
BEGIN | |||
IF rising_edge(i_clk) THEN | |||
FOR i IN 0 TO cst_nb_coeffs_subfilter_in-1 LOOP | |||
data_mult_signed(i) <= data_signed(i) * coeffs_signed(i); | |||
o_data(i) <= std_logic_vector(unsigned(data_mult_signed(i))); | |||
END LOOP; | |||
END IF; | |||
END PROCESS; | |||
END Mult_Path; |
@@ -0,0 +1,85 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE ieee.numeric_std.ALL; | |||
USE work.POLY_FIR_PKG.ALL; | |||
ENTITY PARTIAL_FIR IS | |||
PORT(i_clk : IN std_logic; | |||
i_coeffs : IN vect_fir_coeffs_in; | |||
i_data : IN vect_fir_data_in; | |||
o_data : OUT smpl_fir_adder_data_out | |||
); | |||
END PARTIAL_FIR; | |||
ARCHITECTURE Adder_Tree OF PARTIAL_FIR IS | |||
SIGNAL matrix_adder_tree : matrix_adder_generic := (OTHERS => (OTHERS => (OTHERS => '0'))); | |||
--SIGNAL matrix_adder_tree_signed : matrix_adder_generic_signed := (OTHERS => (OTHERS => (OTHERS => '0'))); | |||
SIGNAL vect_i_coeffs : vect_fir_coeffs_in; | |||
SIGNAL mult_out : vect_mult_data_out := (OTHERS => (OTHERS => '0')); | |||
BEGIN | |||
-- purpose: assign the filter in a decreasing order | |||
in_assignment : FOR i IN 0 TO cst_nb_coeffs_subfilter_in-1 GENERATE | |||
vect_i_coeffs(i) <= i_coeffs(cst_nb_coeffs_subfilter_in-1-i); | |||
END GENERATE in_assignment; | |||
-- instanciation of MULT_BLK(Mult_Path), multiplying each element from i_data | |||
-- with the correct coefficient in vect_i_coeffs | |||
mult_inst : ENTITY work.MULT_BLK(Mult_Path) | |||
PORT MAP(i_clk => i_clk, | |||
i_data => i_data, | |||
i_coeffs => vect_i_coeffs, | |||
o_data => mult_out | |||
); | |||
-- purpose: fill the input (which is the result of multiplication) of the addition tree matrix | |||
-- inputs: mult_out | |||
-- outputs: matrix_adder_tree(0) | |||
mult_out_wire : FOR i IN 0 TO cst_nb_coeffs_subfilter_in-1 GENERATE | |||
matrix_adder_tree(0)(i)(cst_w_mult_out-1 DOWNTO 0) <= mult_out(i)(cst_w_mult_out-1 DOWNTO 0); | |||
END GENERATE mult_out_wire; | |||
-- purpose: wiring: construct the adder tree. Construction: | |||
-- | |||
-- 0-+--+----+-> | |||
-- 1/ / / | |||
-- 2-+/ / | |||
-- 3/ / | |||
-- 4-+--+/ | |||
-- 5/ / | |||
-- 6-+/ | |||
-- 7/ | |||
-- | |||
-- inputs: matrix_adder_tree(0) | |||
-- outputs: matrix_adder_tree(cst_log2_adder_stages) | |||
stages_loop : FOR stage IN 1 TO cst_log2_adder_stages GENERATE | |||
cell_loops : FOR cell IN 0 TO 2**(cst_log2_adder_stages-stage)-1 GENERATE | |||
add_inst : ENTITY work.add_blk(add) | |||
GENERIC MAP(w_out => cst_w_mult_out+stage-1) | |||
PORT MAP(i_clk => i_clk, | |||
i_data1 => matrix_adder_tree(stage-1)((2**(stage-1))*2*cell), | |||
i_data2 => matrix_adder_tree(stage-1)((2**(stage-1))*(2*cell+1)), | |||
o_data => matrix_adder_tree(stage)((2**stage)*cell) | |||
); | |||
END GENERATE cell_loops; | |||
END GENERATE stages_loop; | |||
-- take the result when adder tree finished | |||
o_data <= matrix_adder_tree(cst_log2_adder_stages)(0); | |||
END Adder_Tree; |
@@ -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 +1,200 @@ | |||
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; | |||
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. | |||
FUNCTION log2_sup_integer (number : natural) RETURN natural; | |||
FUNCTION log2_inf_integer (number : natural) RETURN natural; | |||
-- -- CONSTANTS -- -- | |||
-- ADC | |||
CONSTANT cst_w_in : natural := 6; -- ADC in bitwidth | |||
CONSTANT cst_nb_samples_adc_in : natural := 80; -- ADC in nb samples | |||
-- FILTER | |||
--coefficients | |||
CONSTANT cst_w_coeff : natural := 8; -- coeffs bitwidth | |||
CONSTANT cst_nb_coeffs_filter_in : natural := 7*20; | |||
CONSTANT cst_log2_sup_nb_coeffs_subfilter_in : natural := 3; | |||
-- FIR | |||
CONSTANT cst_downsampling_factor : natural := 8; | |||
-- POLYPHASE FILTER | |||
CONSTANT cst_nb_subfilters : natural := 20; | |||
-- -- CALCULATIONS -- -- | |||
CONSTANT cst_w_out : natural := cst_w_in + cst_w_coeff+cst_log2_sup_nb_coeffs_subfilter_in; | |||
-- SHIFT REG | |||
CONSTANT cst_nb_coeffs_subfilter_in : natural := cst_nb_coeffs_filter_in/cst_nb_subfilters; | |||
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_samples_adc_in/cst_downsampling_factor; | |||
-- TYPES | |||
-- ADC | |||
SUBTYPE smpl_adc_data_in IS std_logic_vector(cst_w_in-1 DOWNTO 0); | |||
SUBTYPE smpl_fir_data_out IS std_logic_vector(cst_w_out-1 DOWNTO 0); | |||
-- 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 | |||
SUBTYPE smpl_adder_generic IS std_logic_vector(cst_w_fir_adder_out-1 DOWNTO 0); | |||
SUBTYPE smpl_adder_generic_signed IS signed(cst_w_fir_adder_out-1 DOWNTO 0); | |||
TYPE vect_adder_generic IS ARRAY(0 TO 2**(cst_log2_adder_stages)-1) OF smpl_adder_generic; | |||
TYPE vect_adder_generic_signed IS ARRAY(0 TO 2**(cst_log2_adder_stages)-1) OF smpl_adder_generic_signed; | |||
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; | |||
-- TYPE matrix_coeffs_polyphase_filter IS array(0 to cst_nb_subfilters) OF vect_mult_coeffs; | |||
END; | |||
PACKAGE BODY POLY_FIR_PKG IS | |||
--functions | |||
FUNCTION log2_sup_integer (number : natural) RETURN natural IS | |||
VARIABLE result : natural; | |||
BEGIN | |||
IF(number <= 1) THEN | |||
result := 0; | |||
ELSIF(number = 2) THEN | |||
result := 1; | |||
ELSIF(number > 2 AND number <= 4) THEN | |||
result := 2; | |||
ELSIF(number > 4 AND number <= 8) THEN | |||
result := 3; | |||
ELSIF(number > 8 AND number <= 16) THEN | |||
result := 4; | |||
ELSIF(number > 16 AND number <= 32) THEN | |||
result := 5; | |||
ELSIF(number > 32 AND number <= 64) THEN | |||
result := 6; | |||
ELSIF(number > 64 AND number <= 128) THEN | |||
result := 7; | |||
ELSIF(number > 128 AND number <= 256) THEN | |||
result := 8; | |||
ELSIF(number > 256 AND number <= 512) THEN | |||
result := 9; | |||
ELSIF(number > 512 AND number <= 1024) THEN | |||
result := 10; | |||
ELSIF(number > 1024 AND number <= 2048) THEN | |||
result := 11; | |||
ELSIF(number > 2048 AND number <= 4096) THEN | |||
result := 12; | |||
ELSIF(number > 4096 AND number <= 8192) THEN | |||
result := 13; | |||
ELSIF(number > 8192 AND number <= 16384) THEN | |||
result := 14; | |||
ELSIF(number > 16384 AND number <= 32768) THEN | |||
result := 15; | |||
END IF; | |||
RETURN result; | |||
END FUNCTION; | |||
FUNCTION log2_inf_integer (number : natural) RETURN natural IS | |||
VARIABLE result : natural; | |||
BEGIN | |||
IF(number < 2) THEN | |||
result := 0; | |||
ELSIF(number >= 2 AND number < 4) THEN | |||
result := 1; | |||
ELSIF(number >= 4 AND number < 8) THEN | |||
result := 2; | |||
ELSIF(number >= 8 AND number < 16) THEN | |||
result := 3; | |||
ELSIF(number >= 16 AND number < 32) THEN | |||
result := 4; | |||
ELSIF(number >= 32 AND number < 64) THEN | |||
result := 5; | |||
ELSIF(number >= 64 AND number < 128) THEN | |||
result := 6; | |||
ELSIF(number >= 128 AND number < 256) THEN | |||
result := 7; | |||
ELSIF(number >= 256 AND number < 512) THEN | |||
result := 8; | |||
ELSIF(number >= 512 AND number < 1024) THEN | |||
result := 9; | |||
ELSIF(number >= 1024 AND number < 2048) THEN | |||
result := 10; | |||
ELSIF(number >= 2048 AND number < 4096) THEN | |||
Result := 11; | |||
ELSIF(Number >= 4096 AND number < 8192) THEN | |||
result := 12; | |||
ELSIF(number >= 8192 AND number < 16384) THEN | |||
result := 13; | |||
ELSIF(number >= 16384 AND number < 32768) THEN | |||
result := 14; | |||
END IF; | |||
RETURN result; | |||
END FUNCTION; | |||
END PACKAGE BODY; |
@@ -0,0 +1,141 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE ieee.numeric_std.ALL; | |||
USE work.POLY_FIR_PKG.ALL; | |||
USE work.simu_pkg.ALL; | |||
USE work.utils.ALL; | |||
LIBRARY std; | |||
USE std.textio.ALL; | |||
USE work.coeff.ALL; | |||
ENTITY poly_fir_tb IS | |||
GENERIC ( | |||
demi_periode : time := 5 ns; | |||
-- duree de la demi periode des horloges | |||
test_e : string := "D:\Stage\ALMA_OPFB\simu\polyphase_fir - v0.2\tb_txts_files\input.txt"; | |||
-- fichier test contenant les echantillons d'entree | |||
test_s : string := "D:\Stage\ALMA_OPFB\simu\polyphase_fir - v0.2\tb_txts_files\output.txt" | |||
-- fichier contenant les echantillons de sortie | |||
--fir_addr : std_logic_vector(band5a_w_fc-1 DOWNTO 0) := std_logic_vector(unsigned(band5a_fc_index, band5a_w_fc)) | |||
-- coeff de décimation | |||
); | |||
END poly_fir_tb; | |||
ARCHITECTURE beh OF poly_fir_tb IS | |||
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_fir : vect_adc_data_out := (OTHERS => (OTHERS => '0')); | |||
SIGNAL sortie_fir : vect_from_matrix_fir_data_out := (OTHERS => (OTHERS => '0')); | |||
SIGNAL sortie_fir_sim : matrix_fir_data_out := (OTHERS => (OTHERS => (OTHERS => '0'))); | |||
--SIGNAL coeffs_fir : vect_fir_coeffs_in := ; | |||
SIGNAL sortie_fir_sim_vect : vect_from_matrix_fir_data_out := (OTHERS => (OTHERS => '0')); | |||
SIGNAL verif : donnee_sortie; | |||
BEGIN -- ARCHITECTURE beh | |||
module_simu : ENTITY work.poly_fir_blk(polyphase) | |||
PORT MAP(h, fir_coeffs_generated, entree_fir, sortie_fir_sim); | |||
horloge_entree : horloge(h, demi_periode, demi_periode); | |||
sortie_fir_sim_process : PROCESS(sortie_fir_sim) | |||
VARIABLE mots_lignes : natural := cst_nb_parallel_firs; | |||
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*cst_nb_subfilters+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 := cst_nb_samples_adc_in; -- nombre de mots par ligne dans le ficher | |||
VARIABLE nbr_ligne : natural := 10000; --2750; --15625; -- 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_fir(k) <= std_logic_vector(to_signed(donnee, cst_w_in)); | |||
END LOOP; -- k | |||
END IF; | |||
END PROCESS source; | |||
test : PROCESS | |||
CONSTANT header : natural := 1; -- nombre de ligne d'en tête | |||
CONSTANT nbr_ech : natural := 2000000; --nombre d'echantillons d'entree dans le fichier test | |||
CONSTANT mots_ligne : natural := 200; -- 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 := 8; | |||
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_fir_sim_vect(k))); | |||
sortie_fir(k) <= std_logic_vector(to_signed(donnee(k), cst_w_out)); | |||
verif(k) <= sortie - donnee(k); | |||
ASSERT verif(k) = 0 REPORT "Valeur fir FAUSSE" | |||
SEVERITY error; | |||
--ASSERT sortie /= donnee(k) REPORT "OK" | |||
-- SEVERITY note; | |||
END LOOP; -- k | |||
END IF; | |||
END PROCESS test; | |||
END ARCHITECTURE beh; |
@@ -0,0 +1,82 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE work.POLY_FIR_PKG.ALL; | |||
ENTITY POLY_SHIFT_REG IS | |||
PORT(i_clk : IN std_logic; | |||
i_data : IN vect_adc_data_out; | |||
o_data : OUT matrix3D_reg_data_out | |||
); | |||
END POLY_SHIFT_REG; | |||
ARCHITECTURE Fill_Matrix OF POLY_SHIFT_REG IS | |||
TYPE vect_i_data_temp IS ARRAY (0 TO cst_nb_subfilters-1) OF smpl_adc_data_in; | |||
SIGNAL data_matrix : matrix3D_reg_data_out; | |||
--SIGNAL data_temp : vect_reg_data := (OTHERS =>(OTHERS => '0')); | |||
SIGNAL data_temp : matrix_reg_data := (OTHERS => (OTHERS => (OTHERS => '0'))); | |||
SIGNAL reg_i_data_temp : vect_i_data_temp := (OTHERS => (OTHERS => '0')); | |||
BEGIN | |||
-- purpose: fill a 3D matrix from a register. Each row is the input of the | |||
-- input of a partial filter; each 2D matrix rows-columns is the input for a | |||
-- subfilter | |||
-- inputs: reg_i_data_temp, i_data | |||
-- outputs: data_temp (3D matrix of std_logic_vectors) | |||
PROCESS (i_clk) IS | |||
VARIABLE subfilter_nb : natural := 0; | |||
VARIABLE data_subfilter_nb : natural := 0; | |||
BEGIN -- PROCESS | |||
IF rising_edge(i_clk) THEN -- rising clock edge | |||
-- add the new data to the register | |||
FOR i IN 0 TO cst_nb_subfilters-1 LOOP -- register to store previous data | |||
reg_i_data_temp(i) <= i_data(cst_nb_samples_adc_in-cst_nb_subfilters+i); | |||
END LOOP; -- i | |||
-- shifting the old samples towards reg_i_data_temp(0) | |||
FOR i IN 0 TO cst_nb_subfilters-1 LOOP | |||
data_temp(i)(0 TO cst_nb_samples_shiftreg_temp_in-cst_nb_parallel_firs-1) <= data_temp(i)(cst_nb_parallel_firs TO cst_nb_samples_shiftreg_temp_in-1); | |||
END LOOP; -- i | |||
-- fill a temp 2D matrix for each subfilter (equivalent to filling a temp | |||
-- vector for 1 filter) | |||
parallel_fir_for : FOR parallel_fir_nb IN 0 TO cst_nb_parallel_firs-1 LOOP | |||
fill_data_temp : FOR data_nb IN 0 TO cst_nb_subfilters-1 LOOP -- fill data and copy previous content | |||
IF(data_nb < cst_downsampling_factor) THEN | |||
data_temp(cst_nb_subfilters-1-((parallel_fir_nb*cst_downsampling_factor+data_nb) MOD cst_nb_subfilters))(cst_nb_samples_shiftreg_temp_in-cst_nb_parallel_firs+parallel_fir_nb) <= i_data(cst_downsampling_factor*parallel_fir_nb+data_nb); | |||
ELSE | |||
IF((parallel_fir_nb*cst_downsampling_factor+data_nb)-cst_nb_subfilters < 0) THEN | |||
data_temp(cst_nb_subfilters-1-((parallel_fir_nb*cst_downsampling_factor+data_nb) MOD cst_nb_subfilters))(cst_nb_samples_shiftreg_temp_in-cst_nb_parallel_firs+parallel_fir_nb) <= reg_i_data_temp(data_nb); | |||
ELSE | |||
data_temp(cst_nb_subfilters-1-((parallel_fir_nb*cst_downsampling_factor+data_nb) MOD cst_nb_subfilters))(cst_nb_samples_shiftreg_temp_in-cst_nb_parallel_firs+parallel_fir_nb) <= i_data(cst_downsampling_factor*parallel_fir_nb+data_nb-cst_nb_subfilters); | |||
END IF; | |||
END IF; | |||
END LOOP fill_data_temp; | |||
END LOOP parallel_fir_for; -- parallel_fir_nb | |||
o_data <= data_matrix; | |||
END IF; | |||
END PROCESS; | |||
-- purpose: wiring (filling the 3D out matrix) for each line, for each subfilter | |||
third_dimension : FOR subfilter_nb IN 0 TO cst_nb_subfilters-1 GENERATE | |||
second_dimension : FOR parallel_fir IN 0 TO cst_nb_parallel_firs-1 GENERATE | |||
first_dimension : FOR data_nb IN 0 TO cst_nb_coeffs_subfilter_in-1 GENERATE | |||
data_matrix(subfilter_nb)(parallel_fir)(data_nb) <= data_temp(subfilter_nb)(data_nb+parallel_fir); | |||
END GENERATE first_dimension; -- data_nb | |||
END GENERATE second_dimension; -- parallel_fir | |||
END GENERATE third_dimension; -- subfilter_nb | |||
END Fill_Matrix; |
@@ -0,0 +1,79 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE work.POLY_FIR_PKG.ALL; | |||
ENTITY POLY_SHIFT_REG IS | |||
PORT(i_clk : IN std_logic; | |||
i_data : IN vect_adc_data_out; | |||
o_data : OUT matrix3D_reg_data_out | |||
); | |||
END POLY_SHIFT_REG; | |||
ARCHITECTURE Fill_Matrix OF POLY_SHIFT_REG IS | |||
TYPE vect_i_data_temp IS ARRAY (0 TO cst_nb_subfilters-1) OF smpl_adc_data_in; | |||
TYPE matrix_i_data_temp IS ARRAY (0 TO 1) OF vect_i_data_temp; | |||
SIGNAL data_matrix : matrix3D_reg_data_out; | |||
--SIGNAL data_temp : vect_reg_data := (OTHERS =>(OTHERS => '0')); | |||
SIGNAL data_temp : matrix_reg_data := (OTHERS => (OTHERS => (OTHERS => '0'))); | |||
--VARIABLE reg_i_data_temp : vect_i_data_temp := (OTHERS => (OTHERS => '0')); | |||
BEGIN | |||
-- purpose: fill a 3D matrix from a register. Each row is the input of the | |||
-- input of a partial filter; each 2D matrix rows-columns is the input for a | |||
-- subfilter | |||
-- inputs: reg_i_data_temp, i_data | |||
-- outputs: data_temp (3D matrix of std_logic_vectors) | |||
PROCESS (i_clk) IS | |||
VARIABLE subfilter_nb : natural := 0; | |||
VARIABLE data_subfilter_nb : natural := 0; | |||
VARIABLE reg_i_data_temp : matrix_i_data_temp; | |||
BEGIN -- PROCESS | |||
IF rising_edge(i_clk) THEN -- rising clock edge | |||
-- shifting the old samples towards data_temp(0) | |||
FOR i IN 0 TO cst_nb_subfilters-1 LOOP | |||
data_temp(i)(0 TO cst_nb_samples_shiftreg_temp_in-cst_nb_parallel_firs-1) <= data_temp(i)(cst_nb_parallel_firs TO cst_nb_samples_shiftreg_temp_in-1); | |||
END LOOP; -- i | |||
-- fill a temp 2D matrix for each subfilter (equivalent to filling a temp | |||
-- vector for 1 filter) | |||
parallel_fir_for : FOR parallel_fir_nb IN 0 TO cst_nb_parallel_firs-1 LOOP | |||
FOR i IN 0 TO cst_nb_subfilters-1 LOOP | |||
reg_i_data_temp(1) := reg_i_data_temp(0); | |||
END LOOP; | |||
fill_previous_content : FOR data_nb IN cst_downsampling_factor TO cst_nb_subfilters-1 LOOP | |||
data_temp(cst_nb_subfilters-1-((cst_downsampling_factor*parallel_fir_nb+data_nb) MOD cst_nb_subfilters))(cst_nb_samples_shiftreg_temp_in-cst_nb_parallel_firs+parallel_fir_nb) <= reg_i_data_temp(1)(cst_nb_subfilters-1-((cst_downsampling_factor*parallel_fir_nb+data_nb) MOD cst_nb_subfilters)); | |||
END LOOP fill_previous_content; -- data_nb | |||
fill_data_temp : FOR data_nb IN 0 TO cst_downsampling_factor-1 LOOP -- fill data | |||
data_temp(cst_nb_subfilters-1-((cst_downsampling_factor*parallel_fir_nb+data_nb) MOD cst_nb_subfilters))(cst_nb_samples_shiftreg_temp_in-cst_nb_parallel_firs+parallel_fir_nb) <= i_data(cst_downsampling_factor*parallel_fir_nb+data_nb); | |||
reg_i_data_temp(0)(cst_nb_subfilters-1-((cst_downsampling_factor*parallel_fir_nb+data_nb) MOD cst_nb_subfilters)) := i_data(cst_downsampling_factor*parallel_fir_nb+data_nb); | |||
END LOOP fill_data_temp; | |||
END LOOP parallel_fir_for; -- parallel_fir_nb | |||
o_data <= data_matrix; | |||
END IF; | |||
END PROCESS; | |||
-- purpose: wiring (filling the 3D out matrix) for each line, for each subfilter | |||
third_dimension : FOR subfilter_nb IN 0 TO cst_nb_subfilters-1 GENERATE | |||
second_dimension : FOR parallel_fir IN 0 TO cst_nb_parallel_firs-1 GENERATE | |||
first_dimension : FOR data_nb IN 0 TO cst_nb_coeffs_subfilter_in-1 GENERATE | |||
data_matrix(subfilter_nb)(parallel_fir)(data_nb) <= data_temp(subfilter_nb)(data_nb+parallel_fir); | |||
END GENERATE first_dimension; -- data_nb | |||
END GENERATE second_dimension; -- parallel_fir | |||
END GENERATE third_dimension; -- subfilter_nb | |||
END Fill_Matrix; |
@@ -0,0 +1,13 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE ieee.numeric_std.ALL; | |||
USE work.POLY_FIR_PKG.ALL; | |||
PACKAGE simu_pkg IS | |||
TYPE donnee_sortie IS ARRAY (0 TO 200-1) OF integer; | |||
CONSTANT w_x_simu : natural := 4; | |||
END; |
@@ -0,0 +1,6 @@ | |||
library ieee; | |||
USE ieee.std_logic_1164.all; | |||
USE work.POLY_FIR_PKG.all; | |||
package coeff is | |||
CONSTANT fir_coeffs_generated : vect_polyfir_coeffs_in := (X"04",X"00",X"00",X"00",X"00",X"00",X"ff",X"ff",X"ff",X"fe",X"fe",X"fe",X"fd",X"fd",X"fc",X"fc",X"fb",X"fb",X"fa",X"fa",X"f9",X"f9",X"f9",X"f8",X"f8",X"f8",X"f7",X"f7",X"f7",X"f8",X"f8",X"f8",X"f9",X"f9",X"fa",X"fb",X"fc",X"fe",X"ff",X"01",X"02",X"04",X"07",X"09",X"0b",X"0e",X"10",X"13",X"16",X"19",X"1c",X"1f",X"22",X"25",X"27",X"2a",X"2d",X"30",X"32",X"35",X"37",X"39",X"3b",X"3d",X"3f",X"40",X"41",X"42",X"42",X"42",X"42",X"42",X"42",X"41",X"40",X"3f",X"3d",X"3b",X"39",X"37",X"35",X"32",X"30",X"2d",X"2a",X"27",X"25",X"22",X"1f",X"1c",X"19",X"16",X"13",X"10",X"0e",X"0b",X"09",X"07",X"04",X"02",X"01",X"ff",X"fe",X"fc",X"fb",X"fa",X"f9",X"f9",X"f8",X"f8",X"f8",X"f7",X"f7",X"f7",X"f8",X"f8",X"f8",X"f9",X"f9",X"f9",X"fa",X"fa",X"fb",X"fb",X"fc",X"fc",X"fd",X"fd",X"fe",X"fe",X"fe",X"ff",X"ff",X"ff",X"00",X"00",X"00",X"00",X"00",X"04"); | |||
end package coeff; |
@@ -0,0 +1,31 @@ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
USE work.POLY_FIR_PKG.ALL; | |||
ENTITY TREE_FIR IS | |||
PORT( i_clk : IN std_logic; | |||
i_coeffs : IN vect_fir_coeffs_in; | |||
i_data : IN matrix_reg_data_out; | |||
o_data : OUT vect_fir_data_out | |||
); | |||
END TREE_FIR; | |||
ARCHITECTURE Simple_Fir OF TREE_FIR IS | |||
SIGNAL partial_fir_out : vect_fir_adder_data_out := (OTHERS => (OTHERS => '0')); | |||
BEGIN | |||
-- purpose: wiring: instanciation of each partial FIR to make 1 FIR | |||
partial_fir_for : FOR i IN 0 TO cst_nb_parallel_firs-1 GENERATE | |||
partial_fir_inst : ENTITY work.PARTIAL_FIR(Adder_Tree) | |||
PORT MAP( i_clk => i_clk, | |||
i_coeffs => i_coeffs, | |||
i_data => i_data(i), | |||
o_data => partial_fir_out(i) | |||
); | |||
o_data(i)<= partial_fir_out(i)(cst_w_fir_adder_out-1 DOWNTO cst_w_fir_adder_out-cst_w_out); | |||
END GENERATE partial_fir_for; | |||
END Simple_Fir; |
@@ -0,0 +1,33 @@ | |||
-- *********************** Divers fonction utiles *************************** | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
PACKAGE utils IS | |||
PROCEDURE horloge ( SIGNAL h: OUT std_logic; th, tb : time); | |||
PROCEDURE horloge_retard ( SIGNAL h : OUT std_logic; periode : time ; | |||
retard : time); | |||
END utils; | |||
--------------------------------------------------- | |||
PACKAGE BODY utils IS | |||
PROCEDURE horloge ( SIGNAL h : OUT std_logic; th, tb : time) IS | |||
BEGIN | |||
LOOP | |||
h <= '0', '1' AFTER tb; | |||
WAIT FOR tb + th ; | |||
END LOOP; | |||
END; | |||
PROCEDURE horloge_retard ( SIGNAL h : OUT std_logic; periode : time ; | |||
retard : time) IS | |||
BEGIN | |||
h <= '0'; | |||
WAIT FOR retard; | |||
LOOP | |||
h <= '1' , '0' AFTER periode/2 ; | |||
WAIT FOR periode; | |||
END LOOP; | |||
END; | |||
END utils; |