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White Rabbit core collection
Commit d8c76720 authored by li hongming's avatar li hongming Committed by Grzegorz Daniluk
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add cute_core_ref_top for ngc generation for LHAASO

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syn/cute_core_ref_design/Manifest.py 0 → 100644
View file @ d8c76720
target = "xilinx"
action = "synthesis"
syn_device = "xc6slx45t"
syn_grade = "-3"
syn_package = "csg324"
syn_top = "cute_core_ref_top"
syn_project = "cute_core_ref.xise"
syn_tool = "ise"
modules = { "local" : "../../top/cute_ref_design/"}
syn/cute_core_ref_design/README 0 → 100644
View file @ d8c76720
As there are thousands of nodes in LHAASO project, we merge the WR function with
user module into one FPGA. So they just need the cute_core. The
syn/cute_core_ref is used to generate the ngc for them.
top/cute_ref_design/cute_core_ref_top.vhd
View file @ d8c76720
-------------------------------------------------------------------------------
-- Title : WRPC reference design for CUTE
-- Project : WR PTP Core
-- URL : http://www.ohwr.org/projects/wr-cores/wiki/Wrpc_core
-------------------------------------------------------------------------------
-- File : cute_core_ref_top.vhd
-- Author(s) : Hongming Li <lihm.thu@foxmail.com>
-- Grzegorz Daniluk <grzegorz.daniluk@cern.ch>
-- Company : Tsinghua Univ. (DEP), CERN
-- Standard : VHDL'93
-------------------------------------------------------------------------------
-- Description: Top-level file for the WRPC reference design on the CUTE.
--
-- This is a reference top HDL that instanciates the WR PTP Core together with
-- its peripherals to be run on a CUTE board.
--
-- There are two main usecases for this HDL file:
-- * let new users easily synthesize a WR PTP Core bitstream that can be run on
-- reference hardware
-- * provide a reference top HDL file showing how the WRPC can be instantiated
-- in HDL projects.
--
-- CUTE: https://www.ohwr.org/projects/cute-wr-dp
--
-------------------------------------------------------------------------------
-- Copyright (c) 2018 CERN
-------------------------------------------------------------------------------
-- GNU LESSER GENERAL PUBLIC LICENSE
--
-- This source file is free software; you can redistribute it
-- and/or modify it under the terms of the GNU Lesser General
-- Public License as published by the Free Software Foundation;
-- either version 2.1 of the License, or (at your option) any
-- later version.
--
-- This source 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 Lesser General Public License for more
-- details.
--
-- You should have received a copy of the GNU Lesser General
-- Public License along with this source; if not, download it
-- from http://www.gnu.org/licenses/lgpl-2.1.html
--
-------------------------------------------------------------------------------
library ieee; library ieee;
use ieee.std_logic_1164.all; use ieee.std_logic_1164.all;
use ieee.numeric_std.all; use ieee.numeric_std.all;
...@@ -7,248 +54,329 @@ use work.gencores_pkg.all; ...@@ -7,248 +54,329 @@ use work.gencores_pkg.all;
use work.wishbone_pkg.all; use work.wishbone_pkg.all;
use work.wr_board_pkg.all; use work.wr_board_pkg.all;
use work.wr_cute_pkg.all; use work.wr_cute_pkg.all;
use work.wrcore_pkg.all;
use work.wr_xilinx_pkg.all;
use work.endpoint_pkg.all;
use work.etherbone_pkg.all;
use work.wr_fabric_pkg.all;
library unisim; library unisim;
use unisim.vcomponents.all; use unisim.vcomponents.all;
entity cute_core_ref_top is entity cute_core_ref_top is
generic generic (
( g_dpram_initf : string := "../../bin/wrpc/wrc_phy8.bram";
-- set to 1 to speed up some initialization processes during simulation g_sfp0_enable : integer:= 1;
g_simulation : integer := 0; g_sfp1_enable : integer:= 0;
g_dpram_initf : string := "../../bin/wrpc/wrc_phy8.bram"; g_cute_version : string:= "2.2";
g_sfp0_enable : boolean:= true; g_aux_sdb : t_sdb_device := c_xwb_xil_multiboot_sdb;
g_sfp1_enable : boolean:= false; g_multiboot_enable : boolean:= false
g_aux_sdb : t_sdb_device := c_xwb_tcpip_sdb; );
g_multiboot_enable : boolean:= false port (
); ---------------------------------------------------------------------------
port -- Clocks/resets
( ---------------------------------------------------------------------------
---------------------------------------------------------------------------
-- Clocks/resets -- Local oscillators
--------------------------------------------------------------------------- clk20m_vcxo_i : in std_logic; -- 20mhz vcxo clock
-- Reset input (active low, can be async)
rst_n_i : in std_logic; clk_125m_pllref_p_i : in std_logic; -- 125 MHz PLL reference
-- Clock input, used to derive the DDMTD clock clk_125m_pllref_n_i : in std_logic;
clk_20m_i : in std_logic;
-- 62.5m dmtd clock, from pll drived by clk_20m_vcxo sfp0_ref_clk_p : in std_logic; -- dedicated clock for xilinx gtp transceiver
clk_dmtd_i : in std_logic; sfp0_ref_clk_n : in std_logic;
-- 62.5m system clock, from pll drived by clk_125m_pllref sfp1_ref_clk_p : in std_logic; -- dedicated clock for xilinx gtp transceiver
clk_sys_i : in std_logic; sfp1_ref_clk_n : in std_logic;
-- 125m reference clock, from pll drived by clk_125m_pllref
clk_ref_i : in std_logic; ---------------------------------------------------------------------------
-- Dedicated clock for the Xilinx GTP transceiver. -- SPI interface to DACs
clk_sfp0_i : in std_logic :='0'; ---------------------------------------------------------------------------
clk_sfp1_i : in std_logic :='0';
--------------------------------------------------------------------------- plldac_sclk : out std_logic;
-- Shared SPI interface to DACs plldac_din : out std_logic;
--------------------------------------------------------------------------- plldac_clr_n : out std_logic;
dac_hpll_load_p1_o : out std_logic; plldac_load_n : out std_logic;
dac_hpll_data_o : out std_logic_vector(15 downto 0); plldac_sync_n : out std_logic;
dac_dpll_load_p1_o : out std_logic;
dac_dpll_data_o : out std_logic_vector(15 downto 0); ---------------------------------------------------------------------------
-- SFP I/O for transceiver
--------------------------------------------------------------------------- ---------------------------------------------------------------------------
-- I2C EEPROM
--------------------------------------------------------------------------- sfp0_tx_p : out std_logic;
eeprom_scl_i : in std_logic; sfp0_tx_n : out std_logic;
eeprom_scl_o : out std_logic; sfp0_rx_p : in std_logic;
eeprom_sda_i : in std_logic; sfp0_rx_n : in std_logic;
eeprom_sda_o : out std_logic; sfp0_det : in std_logic; -- sfp detect
sfp0_scl_i : in std_logic; -- scl
--------------------------------------------------------------------------- sfp0_scl_o : out std_logic; -- scl
-- Flash memory SPI interface sfp0_sda_i : in std_logic; -- sda
--------------------------------------------------------------------------- sfp0_sda_o : out std_logic; -- sda
flash_sclk_o : out std_logic; sfp0_tx_fault : in std_logic;
flash_ncs_o : out std_logic; sfp0_tx_disable : out std_logic;
flash_mosi_o : out std_logic; sfp0_los : in std_logic;
flash_miso_i : in std_logic:='1'; --sfp1_tx_p : out std_logic;
--sfp1_tx_n : out std_logic;
--------------------------------------------------------------------------- --sfp1_rx_p : in std_logic;
-- Onewire interface, Temp Sensor DS18B20 --sfp1_rx_n : in std_logic;
--------------------------------------------------------------------------- --sfp1_det : in std_logic; -- sfp detect
onewire_i : in std_logic; --sfp1_scl_i : in std_logic; -- scl
onewire_oen_o : out std_logic; --sfp1_scl_o : out std_logic; -- scl
--sfp1_sda_i : in std_logic; -- sda
--------------------------------------------------------------------------- --sfp1_sda_o : out std_logic; -- sda
-- UART --sfp1_tx_fault : in std_logic;
--------------------------------------------------------------------------- --sfp1_tx_disable : out std_logic;
uart_rxd_i : in std_logic:='0'; --sfp1_tx_los : in std_logic;
uart_txd_o : out std_logic;
---------------------------------------------------------------------------
--------------------------------------------------------------------------- -- Onewire interface
-- SFP I/O for transceiver and SFP management info ---------------------------------------------------------------------------
--------------------------------------------------------------------------- onewire_oen_o : out std_logic;
sfp0_txp_o : out std_logic; onewire_i : in std_logic; -- 1-wire interface to ds18b20
sfp0_txn_o : out std_logic;
sfp0_rxp_i : in std_logic:='0'; ---------------------------------------------------------------------------
sfp0_rxn_i : in std_logic:='0'; -- UART
sfp0_det_i : in std_logic:='0'; -- sfp detect ---------------------------------------------------------------------------
sfp0_scl_i : in std_logic:='0'; -- scl uart_rx : in std_logic;
sfp0_scl_o : out std_logic; -- scl uart_tx : out std_logic;
sfp0_sda_i : in std_logic:='0'; -- sda
sfp0_sda_o : out std_logic; -- sda ---------------------------------------------------------------------------
sfp0_rate_select_o: out std_logic; -- I2C configuration EEPROM interface
sfp0_tx_fault_i : in std_logic:='0'; ---------------------------------------------------------------------------
sfp0_tx_disable_o : out std_logic; eeprom_scl_i : in std_logic;
sfp0_los_i : in std_logic:='0'; eeprom_scl_o : out std_logic;
sfp0_rx_rbclk_o : out std_logic; eeprom_sda_i : in std_logic;
sfp1_txp_o : out std_logic; eeprom_sda_o : out std_logic;
sfp1_txn_o : out std_logic;
sfp1_rxp_i : in std_logic:='0'; ---------------------------------------------------------------------------
sfp1_rxn_i : in std_logic:='0'; -- Flash memory SPI interface
sfp1_det_i : in std_logic:='0'; ---------------------------------------------------------------------------
sfp1_scl_i : in std_logic:='0';
sfp1_scl_o : out std_logic:='0'; flash_sclk_o : out std_logic;
sfp1_sda_i : in std_logic:='0'; flash_ncs_o : out std_logic;
sfp1_sda_o : out std_logic:='0'; flash_mosi_o : out std_logic;
sfp1_rate_select_o: out std_logic; flash_miso_i : in std_logic:='1';
sfp1_tx_fault_i : in std_logic:='0';
sfp1_tx_disable_o : out std_logic; ---------------------------------------------------------------------------
sfp1_los_i : in std_logic:='0'; -- Miscellanous I/O pins
sfp1_rx_rbclk_o : out std_logic; ---------------------------------------------------------------------------
-- user interface
--------------------------------------------------------------------------- sfp0_led : out std_logic;
-- External WB interface sfp1_led : out std_logic;
--------------------------------------------------------------------------- ext_clk : out std_logic;
wb_slave_o : out t_wishbone_slave_out; usr_button : in std_logic;
wb_slave_i : in t_wishbone_slave_in := cc_dummy_slave_in; usr_led1 : out std_logic;
usr_led2 : out std_logic;
aux_master_o : out t_wishbone_master_out; pps_out : out std_logic
aux_master_i : in t_wishbone_master_in := cc_dummy_master_in; );
---------------------------------------------------------------------------
-- WR fabric interface (when g_fabric_iface = "plainfbrc")
---------------------------------------------------------------------------
wrf_src_o : out t_wrf_source_out;
wrf_src_i : in t_wrf_source_in := c_dummy_src_in;
wrf_snk_o : out t_wrf_sink_out;
wrf_snk_i : in t_wrf_sink_in := c_dummy_snk_in;
---------------------------------------------------------------------------
-- Etherbone WB master interface (when g_fabric_iface = "etherbone")
---------------------------------------------------------------------------
wb_eth_master_o : out t_wishbone_master_out;
wb_eth_master_i : in t_wishbone_master_in := cc_dummy_master_in;
---------------------------------------------------------------------------
-- Timecode I/F
---------------------------------------------------------------------------
tm_link_up_o : out std_logic;
tm_time_valid_o : out std_logic;
tm_tai_o : out std_logic_vector(39 downto 0);
tm_cycles_o : out std_logic_vector(27 downto 0);
---------------------------------------------------------------------------
-- Buttons, LEDs and PPS output
---------------------------------------------------------------------------
led_act_o : out std_logic;
led_link_o : out std_logic;
btn1_i : in std_logic := '1';
btn2_i : in std_logic := '1';
-- 1PPS output
pps_valid_o : out std_logic;
pps_p_o : out std_logic;
pps_led_o : out std_logic;
pps_csync_o : out std_logic;
-- Link ok indication
link_ok_o : out std_logic
);
end cute_core_ref_top; end cute_core_ref_top;
architecture rtl of cute_core_ref_top is architecture rtl of cute_core_ref_top is
component oserdes_4_to_1 is
generic(
sys_w : integer := 1;
dev_w : integer := 4);
port(
data_out_from_device : in std_logic_vector(dev_w-1 downto 0);
data_out_to_pins : out std_logic_vector(sys_w-1 downto 0);
delay_reset : in std_logic;
clk_in : in std_logic;
pll_locked : in std_logic;
clk_div_in : in std_logic;
io_reset : in std_logic);
end component;
-----------------------------------------------------------------------------
-- Signals
-----------------------------------------------------------------------------
-- ext 10M clock output
constant c_DATA_W : integer := 4; -- parallel data width going to serdes
constant c_HALF : integer := 25;-- default high/low width for 10MHz
signal rst_oserdes : std_logic;
signal pll_locked : std_logic;
signal sd_out : std_logic_vector(0 downto 0);
signal sd_data : std_logic_vector(c_DATA_W-1 downto 0);
signal aux_half_high: unsigned(15 downto 0);
signal aux_half_low : unsigned(15 downto 0);
signal aux_shift : unsigned(15 downto 0);
signal pps_valid_d : std_logic;
signal clk_realign : std_logic;
signal new_freq : std_logic;
signal pps : std_logic;
signal pps_csync : std_logic;
attribute maxdelay : string;
attribute maxdelay of pps_csync : signal is "500 ps";
signal pps_valid : std_logic;
signal tm_tai : std_logic_vector(39 downto 0);
signal tm_tai_valid : std_logic;
-- Wishbone buse(s) from masters attached to crossbar
signal cnx_master_out : t_wishbone_master_out_array(0 downto 0);
signal cnx_master_in : t_wishbone_master_in_array(0 downto 0);
-- Wishbone buse(s) to slaves attached to crossbar
signal cnx_slave_out : t_wishbone_slave_out_array(0 downto 0);
signal cnx_slave_in : t_wishbone_slave_in_array(0 downto 0);
-- Not needed now, but useful if application cores are added
signal clk_sys_62m5 : std_logic;
signal clk_ref_125m : std_logic;
signal clk_500m : std_logic;
signal rst_sys_62m5_n : std_logic;
signal rst_ref_125m_n : std_logic;
begin begin
u_wr_core : xwrc_board_cute
generic map(
g_dpram_initf => g_dpram_initf,
g_sfp0_enable => g_sfp0_enable,
g_sfp1_enable => g_sfp1_enable,
g_aux_sdb => g_aux_sdb,
g_cute_version => g_cute_version,
g_phy_refclk_sel => 4,
g_multiboot_enable => g_multiboot_enable)
port map (
areset_n_i => usr_button,
clk_20m_vcxo_i => clk20m_vcxo_i,
clk_125m_pllref_p_i => clk_125m_pllref_p_i,
clk_125m_pllref_n_i => clk_125m_pllref_n_i,
clk_125m_gtp0_p_i => sfp0_ref_clk_p,
clk_125m_gtp0_n_i => sfp0_ref_clk_n,
clk_125m_gtp1_p_i => sfp1_ref_clk_p,
clk_125m_gtp1_n_i => sfp1_ref_clk_n,
clk_sys_62m5_o => clk_sys_62m5,
clk_ref_125m_o => clk_ref_125m,
clk_500m_o => clk_500m,
rst_sys_62m5_n_o => rst_sys_62m5_n,
rst_ref_125m_n_o => rst_ref_125m_n,
plldac_sclk_o => plldac_sclk,
plldac_din_o => plldac_din,
plldac_clr_n_o => plldac_clr_n,
plldac_load_n_o => plldac_load_n,
plldac_sync_n_o => plldac_sync_n,
sfp0_txp_o => sfp0_tx_p,
sfp0_txn_o => sfp0_tx_n,
sfp0_rxp_i => sfp0_rx_p,
sfp0_rxn_i => sfp0_rx_n,
sfp0_det_i => sfp0_det,
sfp0_scl_i => sfp0_scl_i,
sfp0_scl_o => sfp0_scl_o,
sfp0_sda_i => sfp0_sda_i,
sfp0_sda_o => sfp0_sda_o,
sfp0_rate_select_o => open,
sfp0_tx_fault_i => sfp0_tx_fault,
sfp0_tx_disable_o => sfp0_tx_disable,
sfp0_los_i => sfp0_los,
--sfp1_txp_o => sfp1_tx_p,
--sfp1_txn_o => sfp1_tx_n,
--sfp1_rxp_i => sfp1_rx_p,
--sfp1_rxn_i => sfp1_rx_n,
--sfp1_det_i => sfp1_det,
--sfp1_scl_i => sfp1_scl_i,
--sfp1_scl_o => sfp1_scl_o,
--sfp1_sda_i => sfp1_sda_i,
--sfp1_sda_o => sfp1_sda_o,
--sfp1_rate_select_o => open,
--sfp1_tx_fault_i => sfp1_tx_fault,
--sfp1_tx_disable_o => sfp1_tx_disable,
--sfp1_los_i => sfp1_tx_los,
cmp_xwrc_board_cute : xwrc_board_cute eeprom_scl_i => eeprom_scl_i,
generic map ( eeprom_scl_o => eeprom_scl_o,
g_simulation => g_simulation, eeprom_sda_i => eeprom_sda_i,
g_with_external_clock_input => false, eeprom_sda_o => eeprom_sda_o,
g_dpram_initf => g_dpram_initf,
g_fabric_iface => PLAIN, onewire_i => onewire_i,
g_aux_sdb => g_aux_sdb, onewire_oen_o => onewire_oen_o,
g_sfp0_enable => g_sfp0_enable,
g_sfp1_enable => g_sfp1_enable, uart_rxd_i => uart_rx,
g_multiboot_enable => g_multiboot_enable) uart_txd_o => uart_tx,
port map (
rst_n_i => rst_n_i, flash_sclk_o => flash_sclk_o,
clk_20m_i => clk_20m_i, flash_ncs_o => flash_ncs_o,
clk_dmtd_i => clk_dmtd_i, flash_mosi_o => flash_mosi_o,
clk_sys_i => clk_sys_i, flash_miso_i => flash_miso_i,
clk_ref_i => clk_ref_i,
clk_sfp0_i => clk_sfp0_i, wb_slave_o => cnx_slave_out(0),
clk_sfp1_i => clk_sfp1_i, wb_slave_i => cnx_slave_in(0),
dac_hpll_load_p1_o => dac_hpll_load_p1_o,
dac_hpll_data_o => dac_hpll_data_o, wb_eth_master_o => cnx_master_out(0),
dac_dpll_load_p1_o => dac_dpll_load_p1_o, wb_eth_master_i => cnx_master_in(0),
dac_dpll_data_o => dac_dpll_data_o,
sfp0_txp_o => sfp0_txp_o, tm_link_up_o => open,
sfp0_txn_o => sfp0_txn_o, tm_time_valid_o => tm_tai_valid,
sfp0_rxp_i => sfp0_rxp_i, tm_tai_o => tm_tai,
sfp0_rxn_i => sfp0_rxn_i, tm_cycles_o => open,
sfp0_det_i => sfp0_det_i,
sfp0_scl_i => sfp0_scl_i, led_act_o => sfp0_led,
sfp0_scl_o => sfp0_scl_o, led_link_o => sfp1_led,
sfp0_sda_i => sfp0_sda_i, pps_p_o => pps_out,
sfp0_sda_o => sfp0_sda_o, pps_led_o => usr_led1,
sfp0_rate_select_o => sfp0_rate_select_o, pps_valid_o => pps_valid,
sfp0_tx_fault_i => sfp0_tx_fault_i, pps_csync_o => pps_csync,
sfp0_tx_disable_o => sfp0_tx_disable_o, pll_locked_o => pll_locked,
sfp0_los_i => sfp0_los_i, link_ok_o => usr_led2);
sfp0_rx_rbclk_o => sfp0_rx_rbclk_o,
sfp1_txp_o => sfp1_txp_o, cnx_slave_in <= cnx_master_out;
sfp1_txn_o => sfp1_txn_o, cnx_master_in <= cnx_slave_out;
sfp1_rxp_i => sfp1_rxp_i,
sfp1_rxn_i => sfp1_rxn_i, aux_half_high <= to_unsigned(c_HALF, aux_half_high'length);
sfp1_det_i => sfp1_det_i, aux_half_low <= to_unsigned(c_HALF, aux_half_low'length);
sfp1_scl_i => sfp1_scl_i, aux_shift <= to_unsigned(11, aux_half_low'length);
sfp1_scl_o => sfp1_scl_o, new_freq <= '0';
sfp1_sda_i => sfp1_sda_i, rst_oserdes <= not pll_locked;
sfp1_sda_o => sfp1_sda_o, ext_clk <= sd_out(0);
sfp1_rate_select_o => sfp1_rate_select_o,
sfp1_tx_fault_i => sfp1_tx_fault_i, process(clk_ref_125m)
sfp1_tx_disable_o => sfp1_tx_disable_o, begin
sfp1_los_i => sfp1_los_i, if rising_edge(clk_ref_125m) then
sfp1_rx_rbclk_o => sfp1_rx_rbclk_o, if(rst_ref_125m_n = '0' or pll_locked = '0') then -- if new_freq or pll lost lock,
eeprom_scl_i => eeprom_scl_i, pps_valid_d <= '0';
eeprom_scl_o => eeprom_scl_o, elsif(pps_csync = '1') then
eeprom_sda_i => eeprom_sda_i, pps_valid_d <= pps_valid;
eeprom_sda_o => eeprom_sda_o, end if;
onewire_i => onewire_i, end if;
onewire_oen_o => onewire_oen_o, end process;
uart_rxd_i => uart_rxd_i, clk_realign <= (not pps_valid_d) and pps_valid and pps_csync;
uart_txd_o => uart_txd_o,
flash_sclk_o => flash_sclk_o, process(clk_ref_125m)
flash_ncs_o => flash_ncs_o, variable rest : integer range 0 to 65535;
flash_mosi_o => flash_mosi_o, variable v_bit : std_logic;
flash_miso_i => flash_miso_i, begin
wb_slave_o => wb_slave_o, if rising_edge(clk_ref_125m) then
wb_slave_i => wb_slave_i, if (rst_ref_125m_n='0' or pll_locked='0' or clk_realign='1') then
aux_master_o => aux_master_o, rest := to_integer(aux_half_high - aux_shift);
aux_master_i => aux_master_i, v_bit := '1';
wrf_src_o => wrf_src_o, else
wrf_src_i => wrf_src_i, for i in 0 to c_DATA_W-1 loop
wrf_snk_o => wrf_snk_o, if(rest /= 0) then
wrf_snk_i => wrf_snk_i, sd_data(i) <= v_bit;
wb_eth_master_o => wb_eth_master_o, rest := rest - 1;
wb_eth_master_i => wb_eth_master_i, elsif(v_bit = '1') then
tm_link_up_o => tm_link_up_o, sd_data(i) <= '0';
tm_time_valid_o => tm_time_valid_o, v_bit := '0';
tm_tai_o => tm_tai_o, rest := to_integer(aux_half_low-1); -- because here we already wrote first bit
tm_cycles_o => tm_cycles_o, -- from this group
led_act_o => led_act_o, elsif(v_bit = '0') then
led_link_o => led_link_o, sd_data(i) <= '1';
pps_led_o => pps_led_o, v_bit := '1';
btn1_i => btn1_i, rest := to_integer(aux_half_high-1);
btn2_i => btn2_i, end if;
pps_valid_o => pps_valid_o, end loop;
pps_p_o => pps_p_o, end if;
pps_csync_o => pps_csync_o, end if;
link_ok_o => link_ok_o); end process;
U_10MHZ_SERDES: oserdes_4_to_1
generic map(
dev_w => c_DATA_W)
port map(
data_out_from_device => sd_data,
data_out_to_pins => sd_out,
delay_reset => '0',
clk_in => clk_500m,
pll_locked => pll_locked,
clk_div_in => clk_ref_125m,
io_reset => rst_oserdes);
end rtl; end rtl;
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