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Commit 28b9edb8 authored by Pepping's avatar Pepping
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libraries/dsp/bf/src/vhdl/.bf.vhd deleted 100644 → 0
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-----------------------------------------------------------------------------
--
-- Copyright (C) 2011
-- ASTRON (Netherlands Institute for Radio Astronomy) <http://www.astron.nl/>
-- P.O.Box 2, 7990 AA Dwingeloo, The Netherlands
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
--
-------------------------------------------------------------------------------
-- Purpose: The bf unit is a structure that places multiple single bf_unit
-- modules in parallel. It can be regarded as a hierarchical level in the design.
--
-- The bf entity takes the input data from the in_sosi_arr and feeds it to
-- all bf_unit modules.
LIBRARY IEEE, common_lib, dp_lib;
USE IEEE.std_logic_1164.ALL;
USE IEEE.numeric_std.ALL;
USE common_lib.common_pkg.ALL;
USE common_lib.common_mem_pkg.ALL;
USE dp_lib.dp_stream_pkg.ALL;
USE work.bf_pkg.ALL;
ENTITY bf IS
GENERIC (
g_bf : t_c_bf := c_bf;
g_bf_weights_file_name : STRING := "UNUSED";
g_ss_wide_file_prefix : STRING := "UNUSED"; -- path_to_file
g_weights_write_only : BOOLEAN := FALSE -- When set to TRUE the M9K blocks are forced to Simple Dual Port mode. When FALSE it is True Dual Port.
);
PORT (
-- System
dp_rst : IN STD_LOGIC := '0';
dp_clk : IN STD_LOGIC;
mm_rst : IN STD_LOGIC;
mm_clk : IN STD_LOGIC;
-- MM interface
ram_ss_ss_wide_mosi : IN t_mem_mosi;
ram_ss_ss_wide_miso : OUT t_mem_miso := c_mem_miso_rst;
ram_bf_weights_mosi : IN t_mem_mosi;
ram_bf_weights_miso : OUT t_mem_miso := c_mem_miso_rst;
ram_st_sst_mosi : IN t_mem_mosi; -- Power statistics memory
ram_st_sst_miso : OUT t_mem_miso := c_mem_miso_rst;
reg_st_sst_mosi : IN t_mem_mosi; -- Power statistics register
reg_st_sst_miso : OUT t_mem_miso := c_mem_miso_rst;
-- ST interface
in_sosi_arr : IN t_dp_sosi_arr(g_bf.nof_input_streams-1 DOWNTO 0); -- subbands
in_siso_arr : OUT t_dp_siso_arr(g_bf.nof_input_streams-1 DOWNTO 0);
out_raw_sosi_arr : OUT t_dp_sosi_arr(g_bf.nof_bf_units-1 DOWNTO 0); -- raw beamlets
out_bst_sosi_arr : OUT t_dp_sosi_arr(g_bf.nof_bf_units-1 DOWNTO 0); -- 16b beamlets
out_qua_sosi_arr : OUT t_dp_sosi_arr(g_bf.nof_bf_units-1 DOWNTO 0) -- 8b beamlets
);
END bf;
ARCHITECTURE str OF bf IS
CONSTANT c_frame_size_in : POSITIVE := g_bf.nof_subbands*g_bf.nof_signal_paths/g_bf.nof_input_streams;
CONSTANT c_reg_st_addr_w : POSITIVE := ceil_log2(2);
CONSTANT c_ram_st_addr_w : POSITIVE := ceil_log2(g_bf.stat_data_sz*g_bf.nof_weights*c_nof_complex); -- The "c_nof_complex" is due to the crosslets capability.
TYPE t_in_siso_2arr IS ARRAY (INTEGER RANGE <>) OF t_dp_siso_arr(g_bf.nof_input_streams-1 DOWNTO 0);
SIGNAL in_siso_2arr : t_in_siso_2arr(g_bf.nof_bf_units-1 DOWNTO 0);
SIGNAL ram_bf_weights_mosi_arr : t_mem_mosi_arr(g_bf.nof_bf_units-1 DOWNTO 0);
SIGNAL ram_bf_weights_miso_arr : t_mem_miso_arr(g_bf.nof_bf_units-1 DOWNTO 0);
SIGNAL ram_st_sst_mosi_arr : t_mem_mosi_arr(g_bf.nof_bf_units-1 DOWNTO 0);
SIGNAL ram_st_sst_miso_arr : t_mem_miso_arr(g_bf.nof_bf_units-1 DOWNTO 0);
SIGNAL reg_st_sst_mosi_arr : t_mem_mosi_arr(g_bf.nof_bf_units-1 DOWNTO 0);
SIGNAL reg_st_sst_miso_arr : t_mem_miso_arr(g_bf.nof_bf_units-1 DOWNTO 0);
SIGNAL ram_ss_ss_wide_mosi_arr : t_mem_mosi_arr(g_bf.nof_bf_units-1 DOWNTO 0);
SIGNAL ram_ss_ss_wide_miso_arr : t_mem_miso_arr(g_bf.nof_bf_units-1 DOWNTO 0);
BEGIN
------------------------------------------------------------------------------
-- The MM multiplexers
------------------------------------------------------------------------------
-- Combine the internal array of mm interfaces for the weight factors to one array that is connected to the port of bf
u_mem_mux_weight : ENTITY common_lib.common_mem_mux
GENERIC MAP (
g_nof_mosi => g_bf.nof_bf_units,
g_mult_addr_w => ceil_log2(g_bf.nof_signal_paths*g_bf.nof_weights)
)
PORT MAP (
mosi => ram_bf_weights_mosi,
miso => ram_bf_weights_miso,
mosi_arr => ram_bf_weights_mosi_arr,
miso_arr => ram_bf_weights_miso_arr
);
-- Combine the internal array of mm interfaces for the beamlet statistics to one array that is connected to the port of bf
u_mem_mux_ram_bst : ENTITY common_lib.common_mem_mux
GENERIC MAP (
g_nof_mosi => g_bf.nof_bf_units,
g_mult_addr_w => c_ram_st_addr_w
)
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
);
-- Combine the internal array of mm interfaces for the beamlet statistics to one array that is connected to the port of bf
u_mem_mux_reg_bst : ENTITY common_lib.common_mem_mux
GENERIC MAP (
g_nof_mosi => g_bf.nof_bf_units,
g_mult_addr_w => c_reg_st_addr_w
)
PORT MAP (
mosi => reg_st_sst_mosi,
miso => reg_st_sst_miso,
mosi_arr => reg_st_sst_mosi_arr,
miso_arr => reg_st_sst_miso_arr
);
-- Combine the internal array of mm interfaces for the ss_wide to one array that is connected to the port of bf
u_mem_mux_ss_wide : ENTITY common_lib.common_mem_mux
GENERIC MAP (
g_nof_mosi => g_bf.nof_bf_units,
g_mult_addr_w => ceil_log2(g_bf.nof_weights*g_bf.nof_signal_paths)
)
PORT MAP (
mosi => ram_ss_ss_wide_mosi,
miso => ram_ss_ss_wide_miso,
mosi_arr => ram_ss_ss_wide_mosi_arr,
miso_arr => ram_ss_ss_wide_miso_arr
);
------------------------------------------------------------------------------
-- The BF units
------------------------------------------------------------------------------
-- Instantiate multiple BF units.
gen_bf_units : FOR J IN 0 TO g_bf.nof_bf_units-1 GENERATE
u_bf_unit : ENTITY work.bf_unit
GENERIC MAP (
g_bf => g_bf,
g_bf_weights_file_name => sel_a_b(g_bf_weights_file_name = "UNUSED", g_bf_weights_file_name, g_bf_weights_file_name & "_" & NATURAL'IMAGE(J)),
g_ss_wide_file_prefix => sel_a_b(g_ss_wide_file_prefix = "UNUSED", g_ss_wide_file_prefix, g_ss_wide_file_prefix & "_" & NATURAL'IMAGE(J)),
g_weights_write_only => g_weights_write_only
)
PORT MAP (
-- System
dp_rst => dp_rst,
dp_clk => dp_clk,
mm_rst => mm_rst,
mm_clk => mm_clk,
-- MM interface
ram_ss_ss_wide_mosi => ram_ss_ss_wide_mosi_arr(J),
ram_ss_ss_wide_miso => ram_ss_ss_wide_miso_arr(J),
ram_bf_weights_mosi => ram_bf_weights_mosi_arr(J),
ram_bf_weights_miso => ram_bf_weights_miso_arr(J),
ram_st_sst_mosi => ram_st_sst_mosi_arr(J),
ram_st_sst_miso => ram_st_sst_miso_arr(J),
reg_st_sst_mosi => reg_st_sst_mosi_arr(J),
reg_st_sst_miso => reg_st_sst_miso_arr(J),
-- ST interface
in_sosi_arr => in_sosi_arr,
in_siso_arr => in_siso_2arr(J),
out_raw_sosi => out_raw_sosi_arr(J),
out_bst_sosi => out_bst_sosi_arr(J),
out_qua_sosi => out_qua_sosi_arr(J)
);
END GENERATE gen_bf_units;
in_siso_arr <= in_siso_2arr(0);
END str;
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