-- PROJECT FOFB
-- COMBPM ELECTRON TOP LEVEL
-- RBR
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity top_combpm_electron is
port(
gt_clk : out std_logic; -- Data clock from GT
rst_n : in std_logic; -- Asyncheonous reset
free_100_clk : in std_logic; -- Freerunning clock for GT
-- Differential reference clock inputs and buffered output
mgtref_clk_p : in std_logic;
mgtref_clk_n : in std_logic;
mgtref_buf_clk : out std_logic;
-- SFP interfaces
sfp_txp : out std_logic;
sfp_txn : out std_logic;
sfp_rxp : in std_logic;
sfp_rxn : in std_logic;
sfp_rx_los : in std_logic;
sfp_mod_abs : in std_logic;
sfp_tx_disable : out std_logic;
sfp_tx_fault : in std_logic;
-- AXIS interface
m_axis_tid : out std_logic_vector(0 downto 0);
m_axis_tdest : out std_logic_vector(9 downto 0);
m_axis_tdata : out std_logic_vector(127 downto 0);
m_axis_tstrb : out std_logic_vector(15 downto 0);
m_axis_tkeep : out std_logic_vector(15 downto 0);
m_axis_tlast : out std_logic;
m_axis_tuser : out std_logic_vector(0 downto 0);
m_axis_tvalid : out std_logic;
m_axis_tready : in std_logic;
-- AXI bus interface
s_axi_awaddr : in std_logic_vector(7 downto 0);
s_axi_awprot : in std_logic_vector(2 downto 0);
s_axi_awvalid : in std_logic;
s_axi_awready : out std_logic;
s_axi_wdata : in std_logic_vector(32-1 downto 0);
s_axi_wstrb : in std_logic_vector(32/8-1 downto 0);
s_axi_wvalid : in std_logic;
s_axi_wready : out std_logic;
s_axi_bresp : out std_logic_vector(1 downto 0);
s_axi_bvalid : out std_logic;
s_axi_bready : in std_logic;
s_axi_araddr : in std_logic_vector(7 downto 0);
s_axi_arprot : in std_logic_vector(2 downto 0);
s_axi_arvalid : in std_logic;
s_axi_arready : out std_logic;
s_axi_rdata : out std_logic_vector(32-1 downto 0);
s_axi_rresp : out std_logic_vector(1 downto 0);
s_axi_rvalid : out std_logic;
s_axi_rready : in std_logic
);
end top_combpm_electron;
architecture struct of top_combpm_electron is
--------------------------
-- INTERFACE ATTRIBUTES --
--------------------------
ATTRIBUTE X_INTERFACE_INFO : STRING;
ATTRIBUTE X_INTERFACE_PARAMETER : STRING;
ATTRIBUTE X_INTERFACE_INFO of rst_n : SIGNAL is "xilinx.com:signal:reset:1.0 rst_n RST";
ATTRIBUTE X_INTERFACE_PARAMETER of rst_n : SIGNAL is "POLARITY ACTIVE_LOW";
ATTRIBUTE X_INTERFACE_PARAMETER of free_100_clk: SIGNAL is "FREQ_HZ 100000000";
ATTRIBUTE X_INTERFACE_PARAMETER of mgtref_buf_clk: SIGNAL is "FREQ_HZ 156250000";
ATTRIBUTE X_INTERFACE_PARAMETER of gt_clk: SIGNAL is "FREQ_HZ 156250000, ASSOCIATED_BUSIF m_axis:s_axi";
ATTRIBUTE X_INTERFACE_INFO of sfp_txn: SIGNAL is "xilinx.com:interface:sfp:1.0 sfp TXN";
ATTRIBUTE X_INTERFACE_INFO of sfp_rxn: SIGNAL is "xilinx.com:interface:sfp:1.0 sfp RXN";
ATTRIBUTE X_INTERFACE_INFO of sfp_txp: SIGNAL is "xilinx.com:interface:sfp:1.0 sfp TXP";
ATTRIBUTE X_INTERFACE_INFO of sfp_rxp: SIGNAL is "xilinx.com:interface:sfp:1.0 sfp RXP";
ATTRIBUTE X_INTERFACE_INFO of sfp_rx_los: SIGNAL is "xilinx.com:interface:sfp:1.0 sfp RX_LOS";
ATTRIBUTE X_INTERFACE_INFO of sfp_mod_abs: SIGNAL is "xilinx.com:interface:sfp:1.0 sfp MOD_ABS";
ATTRIBUTE X_INTERFACE_INFO of sfp_tx_disable: SIGNAL is "xilinx.com:interface:sfp:1.0 sfp TX_DISABLE";
ATTRIBUTE X_INTERFACE_INFO of sfp_tx_fault: SIGNAL is "xilinx.com:interface:sfp:1.0 sfp TX_FAULT";
ATTRIBUTE X_INTERFACE_INFO of mgtref_clk_p: SIGNAL is "xilinx.com:interface:diff_clock:1.0 mgtrefclk CLK_P";
ATTRIBUTE X_INTERFACE_INFO of mgtref_clk_n: SIGNAL is "xilinx.com:interface:diff_clock:1.0 mgtrefclk CLK_N";
ATTRIBUTE X_INTERFACE_PARAMETER of mgtref_clk_p: SIGNAL is "FREQ_HZ 156250000";
------------------------
-- SIGNAL DECLARATION --
------------------------
signal sync_rst : std_logic; -- Reset synchonized to clock
signal rst : std_logic;
signal tx_disable : std_logic;
signal rx_commadeten : std_logic;
signal srst_gt : std_logic;
signal frame_counter : std_logic_vector(15 downto 0);
signal frame_error : std_logic;
signal gt_usrclk : std_logic;
signal gt_datarx : std_logic_vector(15 downto 0);
signal gt_datatx : std_logic_vector(15 downto 0);
signal gt_powergood : std_logic;
signal gt_qplllock : std_logic;
signal gt_txclkactive : std_logic;
signal gt_rxclkactive : std_logic;
signal gt_txresetdone : std_logic;
signal gt_rxresetdone : std_logic;
signal gt_rxbyteisaligned : std_logic;
signal gt_rxbyterealign : std_logic;
signal gt_rxcommadet : std_logic;
signal gt_txfault : std_logic;
signal gt_rxlos : std_logic;
signal gt_modabs : std_logic;
signal gt_rstall : std_logic;
signal gt_rxcommadeten : std_logic;
signal gt_txdisable : std_logic;
signal gt_rxcdrlock : std_logic;
begin
---------------------------
-- RESET SYNCHRONIZATION --
---------------------------
inst_cdc_arst: xpm_cdc_async_rst
port map(
src_arst => rst,
dest_clk => gt_clk,
dest_arst => sync_rst
);
-- Reset invert polarity
rst <= not rst_n;
----------------------
-- AXI-MM INTERFACE --
----------------------
axiitf_inst: entity work.combpm_protocol_electron_ctrl_axi
generic map(
G_ADDR_W => 8
)
port map(
sfp_txfault_i => gt_txfault,
sfp_rxlos_i => gt_rxlos,
sfp_modabs_i => gt_modabs,
sfp_txdisable_o => tx_disable,
gt_powergood_i => gt_powergood,
gt_qplllock_i => gt_qplllock,
gt_txclkactive_i => gt_txclkactive,
gt_rxclkactive_i => gt_rxclkactive,
gt_rxcdrlock_i => gt_rxcdrlock,
gt_txresetdone_i => gt_txresetdone,
gt_rxresetdone_i => gt_rxresetdone,
gt_rxbyteisaligned_i => gt_rxbyteisaligned,
gt_rxbyterealign_i => gt_rxbyterealign,
gt_rxcommadet_i => gt_rxcommadet,
gt_rxcommadeten_o => rx_commadeten,
gt_rstall_o => srst_gt,
protocol_framecnt_i => frame_counter,
protocol_frameerror_i => frame_error,
clk => gt_usrclk,
reset => sync_rst,
S_AXI_AWADDR => S_AXI_AWADDR,
S_AXI_AWPROT => S_AXI_AWPROT,
S_AXI_AWVALID => S_AXI_AWVALID,
S_AXI_AWREADY => S_AXI_AWREADY,
S_AXI_WDATA => S_AXI_WDATA,
S_AXI_WSTRB => S_AXI_WSTRB,
S_AXI_WVALID => S_AXI_WVALID,
S_AXI_WREADY => S_AXI_WREADY,
S_AXI_BRESP => S_AXI_BRESP,
S_AXI_BVALID => S_AXI_BVALID,
S_AXI_BREADY => S_AXI_BREADY,
S_AXI_ARADDR => S_AXI_ARADDR,
S_AXI_ARPROT => S_AXI_ARPROT,
S_AXI_ARVALID => S_AXI_ARVALID,
S_AXI_ARREADY => S_AXI_ARREADY,
S_AXI_RDATA => S_AXI_RDATA,
S_AXI_RRESP => S_AXI_RRESP,
S_AXI_RVALID => S_AXI_RVALID,
S_AXI_RREADY => S_AXI_RREADY
);
--------------------------------------
-- LIBERA ELECTRON PROCOTOL DECODER --
--------------------------------------
protocol_inst: entity work.combpm_protocol_electron
port map(
rst_n => rst_n,
clk => gt_usrclk,
gt_datarx => gt_datarx,
gt_datatx => gt_datatx,
gt_powergood => gt_powergood,
gt_qplllock => gt_qplllock,
gt_txclkactive => gt_txclkactive,
gt_rxclkactive => gt_rxclkactive,
gt_txresetdone => gt_txresetdone,
gt_rxresetdone => gt_rxresetdone,
gt_rxcdrlock => gt_rxcdrlock,
gt_rxbyteisaligned => gt_rxbyteisaligned,
gt_rxbyterealign => gt_rxbyterealign,
gt_rxcommadet => gt_rxcommadet,
gt_txfault => gt_txfault,
gt_rxlos => gt_rxlos,
gt_modabs => gt_modabs,
gt_rstall => gt_rstall,
gt_rxcommadeten => gt_rxcommadeten,
gt_txdisable => gt_txdisable,
m_axi_tid => m_axis_tid,
m_axi_tdest => m_axis_tdest,
m_axi_tdata => m_axis_tdata,
m_axi_tstrb => m_axis_tstrb,
m_axi_tkeep => m_axis_tkeep,
m_axi_tlast => m_axis_tlast,
m_axi_tuser => m_axis_tuser,
m_axi_tvalid => m_axis_tvalid,
m_axi_tready => m_axis_tready,
tx_disable_i => tx_disable,
rx_commadeten_i => rx_commadeten,
srst_gt_i => srst_gt,
frame_counter_o => frame_counter,
frame_error_o => frame_error
);
----------------
-- GT WRAPPER --
----------------
gt_clk <= gt_usrclk;
inst_gtwrapper: entity work.combpm_gtwrapper
port map(
-- 100MHz clock, main ref clock
clk_100 => free_100_clk,
-- Usrclock for data transfer
usrclk => gt_usrclk,
-- Async reset active low
rst_n => rst_n,
-- Differential reference clock inputs and buffered output
mgtrefclk_p => mgtref_clk_p,
mgtrefclk_n => mgtref_clk_n,
mgtrefclk => mgtref_buf_clk,
-- SFP interfaces
sfp_txp(0) => sfp_txp,
sfp_txn(0) => sfp_txn,
sfp_rxp(0) => sfp_rxp,
sfp_rxn(0) => sfp_rxn,
sfp_rx_los(0) => sfp_rx_los,
sfp_mod_abs(0) => sfp_mod_abs,
sfp_tx_disable(0) => sfp_tx_disable,
sfp_tx_fault(0) => sfp_tx_fault,
-- GT interfaces
gt_datarx => gt_datarx,
gt_datatx => gt_datatx,
gt_powergood(0) => gt_powergood,
gt_qplllock(0) => gt_qplllock,
gt_txclkactive(0) => gt_txclkactive,
gt_rxclkactive(0) => gt_rxclkactive,
gt_txresetdone(0) => gt_txresetdone,
gt_rxresetdone(0) => gt_rxresetdone,
gt_rxbyteisaligned(0) => gt_rxbyteisaligned,
gt_rxbyterealign(0) => gt_rxbyterealign,
gt_rxcommadet(0) => gt_rxcommadet,
gt_txfault(0) => gt_txfault,
gt_rxlos(0) => gt_rxlos,
gt_rxcdrlock(0) => gt_rxcdrlock,
gt_modabs(0) => gt_modabs,
gt_rstall(0) => gt_rstall,
gt_rxcommadeten(0) => gt_rxcommadeten,
gt_txdisable(0) => gt_txdisable
);
end architecture struct;