diff --git a/applications/apertif/systems/apertif_bf_xc/hdllib.cfg b/applications/apertif/systems/apertif_bf_xc/hdllib.cfg
new file mode 100644
index 0000000000000000000000000000000000000000..4633d5e573f8293629107bc08f72c2635e45b1de
--- /dev/null
+++ b/applications/apertif/systems/apertif_bf_xc/hdllib.cfg
@@ -0,0 +1,13 @@
+hdl_lib_name = apertif_bf_xc
+hdl_library_clause_name = apertif_bf_xc_lib
+hdl_lib_uses_synth =
+hdl_lib_uses_sim = apertif_unb1_correlator apertif_fn_beamformer
+hdl_lib_technology = ip_stratixiv
+
+modelsim_copy_files = 
+
+synth_files =
+    
+test_bench_files = 
+    tb/vhdl/tb_apertif_bf_xc.vhd
+
diff --git a/applications/apertif/systems/apertif_bf_xc/tb/vhdl/tb_apertif_bf_xc.vhd b/applications/apertif/systems/apertif_bf_xc/tb/vhdl/tb_apertif_bf_xc.vhd
new file mode 100644
index 0000000000000000000000000000000000000000..2a2645cff644ca0ad8f9e9cffe533acf3c00aa53
--- /dev/null
+++ b/applications/apertif/systems/apertif_bf_xc/tb/vhdl/tb_apertif_bf_xc.vhd
@@ -0,0 +1,177 @@
+-------------------------------------------------------------------------------
+--
+-- Copyright (C) 2014
+-- ASTRON (Netherlands Institute for Radio Astronomy) <http://www.astron.nl/>
+-- JIVE (Joint Institute for VLBI in Europe) <http://www.jive.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:
+-- . Simulate a minimal Apertif BF->XC subsystem
+-- Description:
+-- . FIXME:
+--   . 1) First use 1 fn_beamformer and copy its 10G output 3 times and feed that to the XC.
+--   . 2) Instantiate 3x fn_beamformer
+-- Usage:
+
+LIBRARY ip_stratixiv_ddr3_mem_model_lib;
+LIBRARY IEEE, common_lib, unb1_board_lib, i2c_lib, tech_ddr_lib;
+USE IEEE.std_logic_1164.ALL;
+USE IEEE.numeric_std.ALL;
+USE common_lib.common_pkg.ALL;
+USE unb1_board_lib.unb1_board_pkg.ALL;
+USE common_lib.tb_common_pkg.ALL; 
+USE tech_ddr_lib.tech_ddr_pkg.ALL;
+
+ENTITY tb_apertif_bf_xc IS
+END tb_apertif_bf_xc;
+
+ARCHITECTURE tb OF tb_apertif_bf_xc IS
+
+  CONSTANT c_sim             : BOOLEAN := TRUE;
+
+  CONSTANT c_unb_nr          : NATURAL := 0; -- UniBoard 0
+  CONSTANT c_node_nr         : NATURAL := 7; -- Back node 3
+  CONSTANT c_id              : STD_LOGIC_VECTOR(7 DOWNTO 0) := TO_UVEC(c_unb_nr, c_unb1_board_nof_uniboard_w) & TO_UVEC(c_node_nr, c_unb1_board_nof_chip_w);
+
+  CONSTANT c_version         : STD_LOGIC_VECTOR(1 DOWNTO 0) := "00";
+  CONSTANT c_fw_version      : t_unb1_board_fw_version := (1, 0);
+
+  CONSTANT c_cable_delay     : TIME := 12 ns;
+  CONSTANT c_eth_clk_period  : TIME := 40 ns;  -- 25 MHz XO on UniBoard
+  CONSTANT c_sa_clk_period   : TIME := 6.4 ns;  
+  CONSTANT c_clk_period      : TIME := 5 ns; 
+  CONSTANT c_pps_period      : NATURAL := 1000; 
+  
+  CONSTANT c_ddr             : t_c_tech_ddr := c_tech_ddr3_4g_800m_master;
+
+  -- DUT
+  SIGNAL clk                 : STD_LOGIC := '0';
+  SIGNAL pps                 : STD_LOGIC := '0';
+  SIGNAL pps_rst             : STD_LOGIC := '0';
+  SIGNAL sa_clk              : STD_LOGIC := '1';
+  SIGNAL sb_clk              : STD_LOGIC := '1';
+
+  SIGNAL WDI                 : STD_LOGIC;
+  SIGNAL INTA                : STD_LOGIC;
+  SIGNAL INTB                : STD_LOGIC;
+
+  SIGNAL eth_clk             : STD_LOGIC := '0';
+  SIGNAL eth_txp             : STD_LOGIC;
+  SIGNAL eth_rxp             : STD_LOGIC;
+  
+  SIGNAL VERSION             : STD_LOGIC_VECTOR(c_unb1_board_aux.version_w-1 DOWNTO 0) := c_version; 
+  SIGNAL ID                  : STD_LOGIC_VECTOR(c_unb1_board_aux.id_w-1 DOWNTO 0)      := c_id;
+  SIGNAL TESTIO              : STD_LOGIC_VECTOR(c_unb1_board_aux.testio_w-1 DOWNTO 0);
+
+  SIGNAL sens_scl            : STD_LOGIC;
+  SIGNAL sens_sda            : STD_LOGIC;
+  SIGNAL si_fn_0_tx          : STD_LOGIC_VECTOR(c_unb1_board_ci.tr.bus_w-1 DOWNTO 0) := (OTHERS => '0');  
+  SIGNAL fn_bn_0_tx          : STD_LOGIC_VECTOR(c_unb1_board_tr_mesh.bus_w-1 DOWNTO 0) := (OTHERS => '0');  
+  
+  -- Signals to interface with the DDR3 memory model.
+  SIGNAL phy_in              : t_tech_ddr3_phy_in;
+  SIGNAL phy_io              : t_tech_ddr3_phy_io;
+  SIGNAL phy_ou              : t_tech_ddr3_phy_ou;   
+
+BEGIN
+
+  ----------------------------------------------------------------------------
+  -- System setup
+  ----------------------------------------------------------------------------
+  clk     <= NOT clk AFTER c_clk_period/2;        -- External clock (200 MHz)
+  eth_clk <= NOT eth_clk AFTER c_eth_clk_period/2;  -- Ethernet ref clock (25 MHz)
+  sa_clk  <= NOT sa_clk  AFTER c_sa_clk_period/2;
+  sb_clk  <= NOT sb_clk  AFTER c_sa_clk_period/2;
+  
+  INTA <= 'H';  -- pull up
+  INTB <= 'H';  -- pull up
+
+  sens_scl <= 'H';  -- pull up
+  sens_sda <= 'H';  -- pull up
+
+  ------------------------------------------------------------------------------
+  -- External PPS
+  ------------------------------------------------------------------------------  
+  proc_common_gen_pulse(1, c_pps_period, '1', pps_rst, clk, pps);
+  
+  ------------------------------------------------------------------------------
+  -- DUT
+  ------------------------------------------------------------------------------
+  u_apertif_unb1_fn_beamformer : ENTITY work.apertif_unb1_fn_beamformer_tp_bg
+    GENERIC MAP (
+      g_sim         => c_sim,
+      g_sim_unb_nr  => c_unb_nr,
+      g_sim_node_nr => c_node_nr
+    )
+    PORT MAP (
+      -- GENERAL
+      CLK         => clk,
+      PPS         => pps,
+      WDI         => WDI,
+      INTA        => INTA,
+      INTB        => INTB,
+
+      sens_sc     => sens_scl,
+      sens_sd     => sens_sda,
+
+      -- Others
+      VERSION     => VERSION,
+      ID          => ID,
+      TESTIO      => TESTIO,
+
+      -- 1GbE Control Interface
+      ETH_clk     => eth_clk,
+      ETH_SGIN    => eth_rxp,
+      ETH_SGOUT   => eth_txp,
+      
+      -- Transceiver clocks
+      SA_CLK      => sa_clk,  --  : IN  STD_LOGIC; -- SerDes Clock BN-BI / SI_FN
+      SB_CLK      => sb_clk,
+  
+      -- Mesh Serial I/O
+      FN_BN_0_RX  => fn_bn_0_tx, --          : IN  STD_LOGIC_VECTOR(c_unb1_board_tr_mesh.bus_w-1 DOWNTO 0) := (OTHERS=>'0');
+      FN_BN_1_RX  => fn_bn_0_tx, --          : IN  STD_LOGIC_VECTOR(c_unb1_board_tr_mesh.bus_w-1 DOWNTO 0) := (OTHERS=>'0');
+      FN_BN_2_RX  => fn_bn_0_tx, --          : IN  STD_LOGIC_VECTOR(c_unb1_board_tr_mesh.bus_w-1 DOWNTO 0) := (OTHERS=>'0');
+      FN_BN_3_RX  => fn_bn_0_tx, --          : IN  STD_LOGIC_VECTOR(c_unb1_board_tr_mesh.bus_w-1 DOWNTO 0) := (OTHERS=>'0');
+  
+      -- Serial I/O
+      SI_FN_0_RX  => si_fn_0_tx, --  : IN    STD_LOGIC_VECTOR(c_unb1_board_ci.tr.bus_w-1 DOWNTO 0);
+      SI_FN_1_RX  => si_fn_0_tx, --  : IN    STD_LOGIC_VECTOR(c_unb1_board_ci.tr.bus_w-1 DOWNTO 0);
+      SI_FN_2_RX  => si_fn_0_tx, --  : IN    STD_LOGIC_VECTOR(c_unb1_board_ci.tr.bus_w-1 DOWNTO 0);
+      SI_FN_3_RX  => si_fn_0_tx, --  : IN    STD_LOGIC_VECTOR(c_unb1_board_ci.tr.bus_w-1 DOWNTO 0);
+      
+      MB_I_in     => phy_in, 
+      MB_I_io     => phy_io, 
+      MB_I_ou     => phy_ou 
+    );  
+
+  ------------------------------------------------------------------------------
+  -- DDR3 memory model
+  ------------------------------------------------------------------------------
+  u_tech_ddr_memory_model : ENTITY tech_ddr_lib.tech_ddr_memory_model
+  GENERIC MAP (
+    g_tech_ddr => c_ddr
+  )
+  PORT MAP (
+    mem3_in => phy_ou,
+    mem3_io => phy_io,
+    mem3_ou => phy_in
+  );
+    
+
+END tb;
diff --git a/applications/apertif/systems/apertif_bg_xc/hdllib.cfg b/applications/apertif/systems/apertif_bg_xc/hdllib.cfg
new file mode 100644
index 0000000000000000000000000000000000000000..38e71166cfeacc8dc78248d863f8ea625b0c5e0d
--- /dev/null
+++ b/applications/apertif/systems/apertif_bg_xc/hdllib.cfg
@@ -0,0 +1,14 @@
+hdl_lib_name = apertif_bg_xc
+hdl_library_clause_name = apertif_bg_xc_lib
+hdl_lib_uses_synth =
+hdl_lib_uses_sim = apertif_unb1_correlator apertif_fn_bf_emu
+
+hdl_lib_technology = ip_stratixiv
+
+modelsim_copy_files = 
+
+synth_files =
+    
+test_bench_files = 
+    tb/vhdl/tb_apertif_bg_xc.vhd
+
diff --git a/applications/apertif/systems/apertif_bg_xc/tb/vhdl/tb_apertif_bg_xc.vhd b/applications/apertif/systems/apertif_bg_xc/tb/vhdl/tb_apertif_bg_xc.vhd
new file mode 100644
index 0000000000000000000000000000000000000000..2a2645cff644ca0ad8f9e9cffe533acf3c00aa53
--- /dev/null
+++ b/applications/apertif/systems/apertif_bg_xc/tb/vhdl/tb_apertif_bg_xc.vhd
@@ -0,0 +1,177 @@
+-------------------------------------------------------------------------------
+--
+-- Copyright (C) 2014
+-- ASTRON (Netherlands Institute for Radio Astronomy) <http://www.astron.nl/>
+-- JIVE (Joint Institute for VLBI in Europe) <http://www.jive.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:
+-- . Simulate a minimal Apertif BF->XC subsystem
+-- Description:
+-- . FIXME:
+--   . 1) First use 1 fn_beamformer and copy its 10G output 3 times and feed that to the XC.
+--   . 2) Instantiate 3x fn_beamformer
+-- Usage:
+
+LIBRARY ip_stratixiv_ddr3_mem_model_lib;
+LIBRARY IEEE, common_lib, unb1_board_lib, i2c_lib, tech_ddr_lib;
+USE IEEE.std_logic_1164.ALL;
+USE IEEE.numeric_std.ALL;
+USE common_lib.common_pkg.ALL;
+USE unb1_board_lib.unb1_board_pkg.ALL;
+USE common_lib.tb_common_pkg.ALL; 
+USE tech_ddr_lib.tech_ddr_pkg.ALL;
+
+ENTITY tb_apertif_bf_xc IS
+END tb_apertif_bf_xc;
+
+ARCHITECTURE tb OF tb_apertif_bf_xc IS
+
+  CONSTANT c_sim             : BOOLEAN := TRUE;
+
+  CONSTANT c_unb_nr          : NATURAL := 0; -- UniBoard 0
+  CONSTANT c_node_nr         : NATURAL := 7; -- Back node 3
+  CONSTANT c_id              : STD_LOGIC_VECTOR(7 DOWNTO 0) := TO_UVEC(c_unb_nr, c_unb1_board_nof_uniboard_w) & TO_UVEC(c_node_nr, c_unb1_board_nof_chip_w);
+
+  CONSTANT c_version         : STD_LOGIC_VECTOR(1 DOWNTO 0) := "00";
+  CONSTANT c_fw_version      : t_unb1_board_fw_version := (1, 0);
+
+  CONSTANT c_cable_delay     : TIME := 12 ns;
+  CONSTANT c_eth_clk_period  : TIME := 40 ns;  -- 25 MHz XO on UniBoard
+  CONSTANT c_sa_clk_period   : TIME := 6.4 ns;  
+  CONSTANT c_clk_period      : TIME := 5 ns; 
+  CONSTANT c_pps_period      : NATURAL := 1000; 
+  
+  CONSTANT c_ddr             : t_c_tech_ddr := c_tech_ddr3_4g_800m_master;
+
+  -- DUT
+  SIGNAL clk                 : STD_LOGIC := '0';
+  SIGNAL pps                 : STD_LOGIC := '0';
+  SIGNAL pps_rst             : STD_LOGIC := '0';
+  SIGNAL sa_clk              : STD_LOGIC := '1';
+  SIGNAL sb_clk              : STD_LOGIC := '1';
+
+  SIGNAL WDI                 : STD_LOGIC;
+  SIGNAL INTA                : STD_LOGIC;
+  SIGNAL INTB                : STD_LOGIC;
+
+  SIGNAL eth_clk             : STD_LOGIC := '0';
+  SIGNAL eth_txp             : STD_LOGIC;
+  SIGNAL eth_rxp             : STD_LOGIC;
+  
+  SIGNAL VERSION             : STD_LOGIC_VECTOR(c_unb1_board_aux.version_w-1 DOWNTO 0) := c_version; 
+  SIGNAL ID                  : STD_LOGIC_VECTOR(c_unb1_board_aux.id_w-1 DOWNTO 0)      := c_id;
+  SIGNAL TESTIO              : STD_LOGIC_VECTOR(c_unb1_board_aux.testio_w-1 DOWNTO 0);
+
+  SIGNAL sens_scl            : STD_LOGIC;
+  SIGNAL sens_sda            : STD_LOGIC;
+  SIGNAL si_fn_0_tx          : STD_LOGIC_VECTOR(c_unb1_board_ci.tr.bus_w-1 DOWNTO 0) := (OTHERS => '0');  
+  SIGNAL fn_bn_0_tx          : STD_LOGIC_VECTOR(c_unb1_board_tr_mesh.bus_w-1 DOWNTO 0) := (OTHERS => '0');  
+  
+  -- Signals to interface with the DDR3 memory model.
+  SIGNAL phy_in              : t_tech_ddr3_phy_in;
+  SIGNAL phy_io              : t_tech_ddr3_phy_io;
+  SIGNAL phy_ou              : t_tech_ddr3_phy_ou;   
+
+BEGIN
+
+  ----------------------------------------------------------------------------
+  -- System setup
+  ----------------------------------------------------------------------------
+  clk     <= NOT clk AFTER c_clk_period/2;        -- External clock (200 MHz)
+  eth_clk <= NOT eth_clk AFTER c_eth_clk_period/2;  -- Ethernet ref clock (25 MHz)
+  sa_clk  <= NOT sa_clk  AFTER c_sa_clk_period/2;
+  sb_clk  <= NOT sb_clk  AFTER c_sa_clk_period/2;
+  
+  INTA <= 'H';  -- pull up
+  INTB <= 'H';  -- pull up
+
+  sens_scl <= 'H';  -- pull up
+  sens_sda <= 'H';  -- pull up
+
+  ------------------------------------------------------------------------------
+  -- External PPS
+  ------------------------------------------------------------------------------  
+  proc_common_gen_pulse(1, c_pps_period, '1', pps_rst, clk, pps);
+  
+  ------------------------------------------------------------------------------
+  -- DUT
+  ------------------------------------------------------------------------------
+  u_apertif_unb1_fn_beamformer : ENTITY work.apertif_unb1_fn_beamformer_tp_bg
+    GENERIC MAP (
+      g_sim         => c_sim,
+      g_sim_unb_nr  => c_unb_nr,
+      g_sim_node_nr => c_node_nr
+    )
+    PORT MAP (
+      -- GENERAL
+      CLK         => clk,
+      PPS         => pps,
+      WDI         => WDI,
+      INTA        => INTA,
+      INTB        => INTB,
+
+      sens_sc     => sens_scl,
+      sens_sd     => sens_sda,
+
+      -- Others
+      VERSION     => VERSION,
+      ID          => ID,
+      TESTIO      => TESTIO,
+
+      -- 1GbE Control Interface
+      ETH_clk     => eth_clk,
+      ETH_SGIN    => eth_rxp,
+      ETH_SGOUT   => eth_txp,
+      
+      -- Transceiver clocks
+      SA_CLK      => sa_clk,  --  : IN  STD_LOGIC; -- SerDes Clock BN-BI / SI_FN
+      SB_CLK      => sb_clk,
+  
+      -- Mesh Serial I/O
+      FN_BN_0_RX  => fn_bn_0_tx, --          : IN  STD_LOGIC_VECTOR(c_unb1_board_tr_mesh.bus_w-1 DOWNTO 0) := (OTHERS=>'0');
+      FN_BN_1_RX  => fn_bn_0_tx, --          : IN  STD_LOGIC_VECTOR(c_unb1_board_tr_mesh.bus_w-1 DOWNTO 0) := (OTHERS=>'0');
+      FN_BN_2_RX  => fn_bn_0_tx, --          : IN  STD_LOGIC_VECTOR(c_unb1_board_tr_mesh.bus_w-1 DOWNTO 0) := (OTHERS=>'0');
+      FN_BN_3_RX  => fn_bn_0_tx, --          : IN  STD_LOGIC_VECTOR(c_unb1_board_tr_mesh.bus_w-1 DOWNTO 0) := (OTHERS=>'0');
+  
+      -- Serial I/O
+      SI_FN_0_RX  => si_fn_0_tx, --  : IN    STD_LOGIC_VECTOR(c_unb1_board_ci.tr.bus_w-1 DOWNTO 0);
+      SI_FN_1_RX  => si_fn_0_tx, --  : IN    STD_LOGIC_VECTOR(c_unb1_board_ci.tr.bus_w-1 DOWNTO 0);
+      SI_FN_2_RX  => si_fn_0_tx, --  : IN    STD_LOGIC_VECTOR(c_unb1_board_ci.tr.bus_w-1 DOWNTO 0);
+      SI_FN_3_RX  => si_fn_0_tx, --  : IN    STD_LOGIC_VECTOR(c_unb1_board_ci.tr.bus_w-1 DOWNTO 0);
+      
+      MB_I_in     => phy_in, 
+      MB_I_io     => phy_io, 
+      MB_I_ou     => phy_ou 
+    );  
+
+  ------------------------------------------------------------------------------
+  -- DDR3 memory model
+  ------------------------------------------------------------------------------
+  u_tech_ddr_memory_model : ENTITY tech_ddr_lib.tech_ddr_memory_model
+  GENERIC MAP (
+    g_tech_ddr => c_ddr
+  )
+  PORT MAP (
+    mem3_in => phy_ou,
+    mem3_io => phy_io,
+    mem3_ou => phy_in
+  );
+    
+
+END tb;