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sdp_pkg.vhd 6.48 KiB
-------------------------------------------------------------------------------
--
-- 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:
-- . This package contains sdp specific constants.
-- Description:
-- Remark:
-- . See Document: L3 SDP Decision: SDP Parameter definitions.
-------------------------------------------------------------------------------
LIBRARY ieee, common_lib, rTwoSDF_lib, fft_lib, filter_lib, wpfb_lib;
USE IEEE.std_logic_1164.ALL;
USE common_lib.common_pkg.ALL;
USE rTwoSDF_lib.rTwoSDFPkg.ALL;
USE fft_lib.fft_pkg.ALL;
USE filter_lib.fil_pkg.ALL;
USE wpfb_lib.wpfb_pkg.ALL;
PACKAGE sdp_pkg is
-------------------------------------------------
-- SDP info record as defined in:
-- LOFAR2-9258-SDP info per antenna band
-------------------------------------------------
TYPE t_sdp_info IS RECORD
station_id : STD_LOGIC_VECTOR(15 DOWNTO 0);
antenna_band_index : STD_LOGIC;
observation_id : STD_LOGIC_VECTOR(31 DOWNTO 0);
nyquist_zone_index : STD_LOGIC_VECTOR(1 DOWNTO 0);
f_adc : STD_LOGIC;
fsub_type : STD_LOGIC;
beam_repositioning_flag : STD_LOGIC;
subband_calibrated_flag : STD_LOGIC;
O_si : STD_LOGIC_VECTOR(7 DOWNTO 0);
N_si : STD_LOGIC_VECTOR(7 DOWNTO 0);
O_rn : STD_LOGIC_VECTOR(7 DOWNTO 0);
N_rn : STD_LOGIC_VECTOR(7 DOWNTO 0);
block_period : STD_LOGIC_VECTOR(15 DOWNTO 0);
beamlet_scale : STD_LOGIC_VECTOR(15 DOWNTO 0);
END RECORD;
-------------------------------------------------
-- SDP specific parameters as defined in:
-- L3 SDP Decision: SDP Parameter definitions
-------------------------------------------------
CONSTANT c_sdp_N_pol : NATURAL := 2;
CONSTANT c_sdp_N_sub : NATURAL := 512;
CONSTANT c_sdp_N_fft : NATURAL := 1024;
CONSTANT c_sdp_S_pn : NATURAL := 12;
CONSTANT c_sdp_Q_fft : NATURAL := 2;
CONSTANT c_sdp_N_taps : NATURAL := 16;
CONSTANT c_sdp_W_adc : NATURAL := 14; CONSTANT c_sdp_W_fir_coef : NATURAL := 16;
CONSTANT c_sdp_W_subband : NATURAL := 18;
CONSTANT c_sdp_P_pfb : NATURAL := c_sdp_S_pn/c_sdp_Q_fft;
CONSTANT c_sdp_S_sub_bf : NATURAL := 488;
CONSTANT c_sdp_f_adc_MHz : NATURAL := 200;
CONSTANT c_sdp_T_adc : TIME := (10**6/c_sdp_f_adc_MHz) * 1 ps;
CONSTANT c_sdp_T_sub : TIME := c_sdp_N_fft * c_sdp_T_adc;
CONSTANT c_sdp_W_sub_weight : NATURAL := 16;
CONSTANT c_sdp_W_sub_magnitude : NATURAL := 2;
CONSTANT c_sdp_W_sub_fraction : NATURAL := c_sdp_W_sub_weight - c_sdp_W_sub_magnitude -1;
CONSTANT c_sdp_W_bf_weight : NATURAL := 16;
CONSTANT c_sdp_W_bf_magnitude : NATURAL := 1;
CONSTANT c_sdp_W_bf_fraction : NATURAL := c_sdp_W_bf_weight - c_sdp_W_bf_magnitude -1;
CONSTANT c_sdp_W_bf_product : NATURAL := c_sdp_W_subband + c_sdp_W_bf_weight -1;
CONSTANT c_sdp_W_beamlet_sum : NATURAL := 18;
CONSTANT c_sdp_W_beamlet : NATURAL := 8;
CONSTANT c_sdp_W_beamlet_scale : NATURAL := 16;
CONSTANT c_sdp_W_gn_id : NATURAL := 5;
CONSTANT c_sdp_N_pn_lb : NATURAL := 16;
-- AIT constants
CONSTANT c_sdp_ait_buf_nof_data_jesd : NATURAL := 1024; -- 1024 14 bit samples fit in one M20k BRAM
CONSTANT c_sdp_ait_buf_nof_data_bsn : NATURAL := 1024; -- 1024 14 bit samples fit in one M20k BRAM
-- In SDP c_nof_channels = 2**nof_chan = 1 and wb_factor = 1,
-- therefore these parameters are not explicitly used in calculation of derived constants
CONSTANT c_sdp_wpfb_subbands : t_wpfb :=
(1, c_sdp_N_fft, 0, c_sdp_P_pfb,
c_sdp_N_taps, 1, c_sdp_W_adc, 16, c_sdp_W_fir_coef,
true, false, true, 16, c_sdp_W_subband, 1, 18, 2,
true, 54, 2, 195313, c_fft_pipeline, c_fft_pipeline,
c_fil_ppf_pipeline);
-- JESD204
CONSTANT c_sdp_jesd204b_bus_w : NATURAL := 12;
CONSTANT c_sdp_jesd204b_nof_bus : NATURAL := 1;
-- AIT MM address widths
CONSTANT c_sdp_jesd204b_addr_w : NATURAL := 8 + ceil_log2(c_sdp_S_pn);
CONSTANT c_sdp_reg_bsn_monitor_input_addr_w : NATURAL := 8;
CONSTANT c_sdp_reg_wg_addr_w : NATURAL := 2 + ceil_log2(c_sdp_S_pn);
CONSTANT c_sdp_ram_wg_addr_w : NATURAL := 10 + ceil_log2(c_sdp_S_pn);
CONSTANT c_sdp_reg_dp_shiftram_addr_w : NATURAL := 1 + ceil_log2(c_sdp_S_pn);
CONSTANT c_sdp_reg_bsn_source_addr_w : NATURAL := 2;
CONSTANT c_sdp_reg_bsn_scheduler_addr_w : NATURAL := 1;
CONSTANT c_sdp_ram_diag_data_buf_jesd_addr_w : NATURAL := ceil_log2(2*c_sdp_ait_buf_nof_data_jesd);
CONSTANT c_sdp_reg_diag_data_buf_jesd_addr_w : NATURAL := 1 + ceil_log2(2);
CONSTANT c_sdp_ram_diag_data_buf_bsn_addr_w : NATURAL := ceil_log2(c_sdp_S_pn*c_sdp_ait_buf_nof_data_bsn);
CONSTANT c_sdp_reg_diag_data_buf_bsn_addr_w : NATURAL := 1 + ceil_log2(c_sdp_S_pn);
CONSTANT c_sdp_reg_aduh_monitor_addr_w : NATURAL := 2 + ceil_log2(c_sdp_S_pn);
-- FSUB MM address widths
CONSTANT c_sdp_ram_fil_coefs_addr_w : NATURAL := ceil_log2(c_sdp_N_fft * c_sdp_N_taps);
CONSTANT c_sdp_ram_st_sst_addr_w : NATURAL := ceil_log2(c_sdp_P_pfb*c_sdp_N_sub*c_sdp_Q_fft*c_sdp_wpfb_subbands.stat_data_sz);
CONSTANT c_sdp_reg_si_addr_w : NATURAL := 1; --enable/disable
CONSTANT c_sdp_ram_equalizer_gains_addr_w : NATURAL := ceil_log2(c_sdp_P_pfb*c_sdp_N_sub*c_sdp_Q_fft);
CONSTANT c_sdp_reg_dp_selector_addr_w : NATURAL := 1; --Select input 0 or 1.
END PACKAGE sdp_pkg;
PACKAGE BODY sdp_pkg IS
END sdp_pkg;