diff --git a/applications/lofar2/libraries/sdp/hdllib.cfg b/applications/lofar2/libraries/sdp/hdllib.cfg new file mode 100644 index 0000000000000000000000000000000000000000..d4df839f258eb81cc7febb610627c832a351e6d4 --- /dev/null +++ b/applications/lofar2/libraries/sdp/hdllib.cfg @@ -0,0 +1,19 @@ +hdl_lib_name = lofar2_sdp +hdl_library_clause_name = lofar2_sdp_lib +hdl_lib_uses_synth = common dp wpfb rTwoSDF filter si st +hdl_lib_uses_sim = +hdl_lib_technology = + +synth_files = + src/vhdl/node_sdp_filterbank.vhd + +test_bench_files = + +regression_test_vhdl = + + +[modelsim_project_file] + + +[quartus_project_file] + diff --git a/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_filterbank.vhd b/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_filterbank.vhd new file mode 100644 index 0000000000000000000000000000000000000000..b3135b0faed987692454dfb88f74e1419f79446e --- /dev/null +++ b/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_filterbank.vhd @@ -0,0 +1,199 @@ +------------------------------------------------------------------------------- +-- +-- 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. +-- +------------------------------------------------------------------------------- + +------------------------------------------------------------------------------- +-- +-- Author: R. van der Walle +-- Purpose: . +-- Description: +-- . +-- Remark: +-- . +------------------------------------------------------------------------------- + +LIBRARY IEEE, common_lib, dp_lib, rTwoSDF_lib, wpfb_lib, filter_lib, si_lib, st_lib; +USE IEEE.STD_LOGIC_1164.ALL; +USE common_lib.common_pkg.ALL; +USE common_lib.common_mem_pkg.ALL; +USE dp_lib.dp_stream_pkg.ALL; +USE rTwoSDF_lib.rTwoSDFPkg.ALL; +USE filter_lib.fil_pkg.ALL; +USE wpfb_lib.wpfb_pkg.ALL; + +ENTITY node_sdp_filterbank IS + GENERIC ( + g_nof_streams : NATURAL := 12 -- CONSTANT + ); + PORT ( + dp_clk : IN STD_LOGIC; + dp_rst : IN STD_LOGIC; + + in_sosi_arr : IN t_dp_sosi_arr(g_nof_streams-1 DOWNTO 0); + pfb_sosi_arr : OUT t_dp_sosi_arr(g_nof_streams/2-1 DOWNTO 0); + + mm_rst : IN STD_LOGIC; + mm_clk : IN STD_LOGIC; + + reg_si_mosi : IN t_mem_mosi := c_mem_mosi_rst; + reg_si_miso : OUT t_mem_miso; + ram_st_sst_mosi : IN t_mem_mosi; -- Subband statistics registers + ram_st_sst_miso : OUT t_mem_miso := c_mem_miso_rst; + ram_fil_coefs_mosi : IN t_mem_mosi; + ram_fil_coefs_miso : OUT t_mem_miso := c_mem_miso_rst + ); +END node_sdp_filterbank; + +ARCHITECTURE str OF node_sdp_filterbank IS + + CONSTANT c_wpfb_lofar_subbands : t_wpfb := + (1, 1024, 0, 6, + 16, 1, 14, 16, 16, + true, false, true, 16, 18, 1, 18, 2, true, 54, 2, 195313, + c_fft_pipeline, c_fft_pipeline, c_fil_ppf_pipeline); + + CONSTANT c_in_dat_w : NATURAL := c_wpfb_lofar_subbands.fil_in_dat_w; + CONSTANT c_nof_channels : NATURAL := 2**c_wpfb_lofar_subbands.nof_chan; + CONSTANT c_nof_data_per_block : NATURAL := c_nof_channels * c_wpfb_lofar_subbands.nof_points; + CONSTANT c_nof_valid_per_block : NATURAL := c_nof_data_per_block / c_wpfb_lofar_subbands.wb_factor; + CONSTANT c_nof_stats : NATURAL := c_nof_valid_per_block; + + CONSTANT c_coefs_file_prefix : STRING := "UNUSED"; --"data/coefs_wide"; + + SIGNAL ram_st_sst_mosi_arr : t_mem_mosi_arr(c_wpfb_lofar_subbands.nof_wb_streams*c_wpfb_lofar_subbands.wb_factor-1 DOWNTO 0); + SIGNAL ram_st_sst_miso_arr : t_mem_miso_arr(c_wpfb_lofar_subbands.nof_wb_streams*c_wpfb_lofar_subbands.wb_factor-1 DOWNTO 0) := (OTHERS => c_mem_miso_rst); + + SIGNAL wpfb_unit_out_sosi_arr : t_dp_sosi_arr(c_wpfb_lofar_subbands.nof_wb_streams*c_wpfb_lofar_subbands.wb_factor-1 DOWNTO 0) := (OTHERS => c_dp_sosi_rst); + SIGNAL wpfb_unit_fil_sosi_arr : t_dp_sosi_arr(c_wpfb_lofar_subbands.nof_wb_streams*c_wpfb_lofar_subbands.wb_factor-1 DOWNTO 0) := (OTHERS => c_dp_sosi_rst); + SIGNAL wpfb_unit_in_sosi_arr : t_dp_sosi_arr(c_wpfb_lofar_subbands.nof_wb_streams*c_wpfb_lofar_subbands.wb_factor-1 DOWNTO 0) := (OTHERS => c_dp_sosi_rst); + SIGNAL si_sosi_arr : t_dp_sosi_arr(g_nof_streams-1 DOWNTO 0) := (OTHERS => c_dp_sosi_rst); + +BEGIN + --------------------------------------------------------------- + -- SPECTRAL INVERSION + --------------------------------------------------------------- + u_si_arr : ENTITY si_lib.si_arr + GENERIC MAP ( + g_nof_streams => g_nof_streams, + g_pipeline => 1, + g_dat_w => c_in_dat_w + ) + PORT MAP( + in_sosi_arr => in_sosi_arr, + out_sosi_arr => si_sosi_arr, + + reg_si_mosi => reg_si_mosi, + reg_si_miso => reg_si_miso, + + mm_rst => mm_rst, + mm_clk => mm_clk, + dp_clk => dp_clk, + dp_rst => dp_rst + ); + + --------------------------------------------------------------- + -- POLY-PHASE FILTERBANK + --------------------------------------------------------------- + -- Connect the 12 ADC streams to the re and im fields of the PFB input. + p_pfb_streams : PROCESS(si_sosi_arr) + BEGIN + FOR I IN 0 TO c_wpfb_lofar_subbands.nof_wb_streams*c_wpfb_lofar_subbands.wb_factor-1 LOOP + wpfb_unit_in_sosi_arr(I) <= si_sosi_arr(2*I); + wpfb_unit_in_sosi_arr(I).re(c_in_dat_w-1 DOWNTO 0) <= si_sosi_arr(2*I).data(c_in_dat_w-1 DOWNTO 0); + wpfb_unit_in_sosi_arr(I).im(c_in_dat_w-1 DOWNTO 0) <= si_sosi_arr(2*I+1).data(c_in_dat_w-1 DOWNTO 0); + END LOOP; + END PROCESS; + + -- PFB + u_wpfb_unit_dev : ENTITY wpfb_lib.wpfb_unit_dev + GENERIC MAP ( + g_big_endian_wb_in => TRUE, + g_wpfb => c_wpfb_lofar_subbands, + g_dont_flip_channels => FALSE, + g_use_prefilter => TRUE, + g_stats_ena => FALSE, + g_use_bg => FALSE, + g_coefs_file_prefix => c_coefs_file_prefix + ) + PORT MAP ( + dp_rst => dp_rst, + dp_clk => dp_clk, + mm_rst => mm_rst, + mm_clk => mm_clk, + + ram_fil_coefs_mosi => ram_fil_coefs_mosi, + ram_fil_coefs_miso => ram_fil_coefs_miso, + + ram_st_sst_mosi => c_mem_mosi_rst, + ram_st_sst_miso => OPEN, + reg_bg_ctrl_mosi => c_mem_mosi_rst, + reg_bg_ctrl_miso => OPEN, + ram_bg_data_mosi => c_mem_mosi_rst, + ram_bg_data_miso => OPEN, + + in_sosi_arr => wpfb_unit_in_sosi_arr, + fil_sosi_arr => wpfb_unit_fil_sosi_arr, + out_sosi_arr => wpfb_unit_out_sosi_arr + ); + + -- Output PFB streams + pfb_sosi_arr <= wpfb_unit_out_sosi_arr; + + --------------------------------------------------------------- + -- SUBBAND STATISTICS + --------------------------------------------------------------- + gen_stats_streams: FOR S IN 0 TO c_wpfb_lofar_subbands.nof_wb_streams-1 GENERATE + gen_stats_wideband: FOR P IN 0 TO c_wpfb_lofar_subbands.wb_factor-1 GENERATE + u_subband_stats : ENTITY st_lib.st_sst + GENERIC MAP( + g_nof_stat => c_nof_stats, + g_in_data_w => c_wpfb_lofar_subbands.fft_out_dat_w, + g_stat_data_w => c_wpfb_lofar_subbands.stat_data_w, + g_stat_data_sz => c_wpfb_lofar_subbands.stat_data_sz + ) + PORT MAP ( + mm_rst => mm_rst, + mm_clk => mm_clk, + dp_rst => dp_rst, + dp_clk => dp_clk, + in_complex => wpfb_unit_out_sosi_arr(S*c_wpfb_lofar_subbands.wb_factor+P), + ram_st_sst_mosi => ram_st_sst_mosi_arr(S*c_wpfb_lofar_subbands.wb_factor+P), + ram_st_sst_miso => ram_st_sst_miso_arr(S*c_wpfb_lofar_subbands.wb_factor+P) + ); + END GENERATE; + END GENERATE; + + --------------------------------------------------------------- + -- COMBINE MEMORY MAPPED INTERFACES + --------------------------------------------------------------- + -- Combine the internal array of mm interfaces for the subband + -- statistics to one array. + u_mem_mux_sst : ENTITY common_lib.common_mem_mux + GENERIC MAP ( + g_nof_mosi => c_wpfb_lofar_subbands.nof_wb_streams*c_wpfb_lofar_subbands.wb_factor, + g_mult_addr_w => ceil_log2(c_wpfb_lofar_subbands.stat_data_sz*c_nof_stats) + ) + PORT MAP ( + mosi => ram_st_sst_mosi, + miso => ram_st_sst_miso, + mosi_arr => ram_st_sst_mosi_arr, + miso_arr => ram_st_sst_miso_arr + ); + +END str;