Subversion Repositories core1990_interlaken

library ieee;

use ieee.std_logic_1164.all;

entity testbench_interlaken_interface is

end entity testbench_interlaken_interface;

architecture tb_interlaken_interface of testbench_interlaken_interface is

    constant   TX_REFCLK_PERIOD        :   time :=  8.0 ns;

    constant   RX_REFCLK_PERIOD        :   time :=  8.0 ns;

    constant   SYSCLK_PERIOD           :   time :=  25.0 ns;

    constant   DCLK_PERIOD             :   time :=  5.0 ns;

--    constant BurstMax

--    constant BurstShort

--    constant PacketLength

    signal System_Clock_In_P : std_logic;

    signal System_Clock_In_N : std_logic;

    signal GTREFCLK_IN_P : std_logic;

    signal GTREFCLK_IN_N : std_logic;

    signal Reset                : std_logic;

    signal TX_Data      : std_logic_vector(63 downto 0);          -- Data transmitted

    signal RX_Data  : std_logic_vector (63 downto 0);        -- Data received

    signal TX_Out_P     : std_logic;

    signal TX_Out_N     : std_logic;

    signal RX_In_P      : std_logic;

    signal RX_In_N      : std_logic;

    signal TX_Link_Up      : std_logic;                         -- In case signal is high transmission may start

    signal TX_SOP          : std_logic;

    signal TX_EOP          : std_logic;

    signal TX_EOP_Valid    : std_logic_vector(2 downto 0);

    signal TX_FlowControl  : std_logic_vector(15 downto 0);

    signal TX_Channel      : std_logic_vector(7 downto 0);

    signal RX_SOP               : std_logic;                         -- Start of Packet

    signal RX_EOP               : std_logic;                         -- End of Packet

    signal RX_EOP_Valid         : std_logic_vector(2 downto 0);      -- Valid bytes packet contains

    signal RX_FlowControl       : std_logic_vector(15 downto 0);     -- Flow control data (yet unutilized)

    signal RX_Channel           : std_logic_vector(7 downto 0);      -- Select transmit channel (yet unutilized)

    signal RX_Link_Up       : std_logic;

    signal TX_Overflow      : std_logic;

    signal TX_Underflow     : std_logic;

    signal RX_FIFO_Full      : std_logic;

    signal RX_FIFO_Empty     : std_logic;

    signal Decoder_lock      : std_logic;

    signal Descrambler_lock  : std_logic;

    signal CRC24_Error       : std_logic;

    signal CRC32_Error       : std_logic;

begin

    RX_In_N <=  TX_Out_N;

    RX_In_P <=  TX_Out_P;

    uut : entity work.interlaken_interface

    port map (

        System_Clock_In_P => System_Clock_In_P,

        System_Clock_In_N => System_Clock_In_N,

        GTREFCLK_IN_P => GTREFCLK_IN_P,

        GTREFCLK_IN_N => GTREFCLK_IN_N,

        reset => reset,

        TX_Data => TX_Data,

        RX_Data => RX_Data,

        RX_In_N => RX_In_N,

        RX_In_P => RX_In_P,

        TX_Out_N => TX_Out_N,

        TX_Out_P => TX_Out_P,

        TX_Link_Up => TX_Link_Up,

        TX_SOP => TX_SOP,

        TX_EOP => TX_EOP,

        TX_EOP_Valid => TX_EOP_Valid,

        TX_FlowControl => TX_FlowControl,

        TX_Channel => TX_Channel,

        RX_SOP => RX_SOP,

        RX_EOP => RX_EOP,

        RX_EOP_Valid => RX_EOP_Valid,

        RX_FlowControl => RX_FlowControl,

        RX_Channel => RX_Channel,

        RX_Link_Up => RX_Link_Up,

        TX_Overflow => TX_Overflow,

        TX_Underflow => TX_Underflow,

        RX_FIFO_Full => RX_FIFO_Full,

        RX_FIFO_Empty => RX_FIFO_Empty,

        Decoder_lock => Decoder_lock,

        Descrambler_lock => Descrambler_lock,

        CRC24_Error => CRC24_Error,

        CRC32_Error => CRC32_Error

    );

    process

    begin

        GTREFCLK_IN_N  <=  '1';

        wait for TX_REFCLK_PERIOD/2;

        GTREFCLK_IN_N  <=  '0';

        wait for TX_REFCLK_PERIOD/2;

    end process;

    GTREFCLK_IN_P <= not GTREFCLK_IN_N;

    process

    begin

        rx_refclk_n_r  <=  '1';

        wait for RX_REFCLK_PERIOD/2;

        rx_refclk_n_r  <=  '0';

        wait for RX_REFCLK_PERIOD/2;

    end process;

    rx_refclk_p_r <= not rx_refclk_n_r;

    process

    begin

        System_Clock_In_N  <=  '1';

        wait for DCLK_PERIOD/2;

        System_Clock_In_N  <=  '0';

        wait for DCLK_PERIOD/2;

    end process;

    System_Clock_In_P <= not System_Clock_In_N;

    simulation : process

    begin

        wait for 1 ps;

            --TX_Enable <= '0';

        TX_EOP <= '0';

        TX_SOP <= '0';

        TX_Channel <= X"01";

        TX_EOP_Valid <= "111";

        TX_Data <= (others=>'0');

        reset <= '1';

        TX_FlowControl <= (others => '0');

        wait for 20*SYSCLK_PERIOD;

        wait for SYSCLK_PERIOD;

        reset <= '0';

        --TX_SOP <= '1';

        --TX_Enable <= '1';

        TX_Data <= X"1f5e5d5c5b5a5958";

        wait for SYSCLK_PERIOD;

        --TX_EOP <= '1';

        wait until (TX_Link_Up = '1');

        wait for SYSCLK_PERIOD*10;

        TX_FlowControl(0) <= '1';

        TX_SOP <= '1';

        TX_EOP <= '1';

        TX_Data <= X"2f5e5d5c5b5a5958";

        wait for SYSCLK_PERIOD;

        TX_EOP <= '0';

        TX_Data <= X"3f5e5d5c5b5a5958";

        wait for SYSCLK_PERIOD;

        TX_SOP <= '0';

        TX_EOP <= '0';

        TX_EOP <= '0';

        --reset <= '1';

        TX_Data <= X"4f21a2a3a4a5a6a7";

        wait for SYSCLK_PERIOD;

--        TX_FlowControl(0) <= '1';

        TX_SOP <= '1';

        TX_Data <= X"5f5e5a5c5b60f2a0";

        wait for SYSCLK_PERIOD;

        TX_SOP <= '0';

        TX_EOP <= '1';

        TX_Data  <= X"635e22a3a4a5a7a7";

        wait for SYSCLK_PERIOD;

        TX_EOP <= '0';

        --TX_SOP <= '1';

        TX_Data  <= X"70000FFF000000F0";

        wait for SYSCLK_PERIOD*2;

        TX_SOP <= '1';

        TX_Data <= X"2f5e5d5c5b5a5958";

        wait for SYSCLK_PERIOD;

        TX_SOP <= '0';

        TX_EOP <= '1';

        wait for SYSCLK_PERIOD;

        TX_EOP <= '0';

        --TX_SOP <= '0';

        TX_Data  <= X"8050505050050505";

        --wait for SYSCLK_PERIOD*3;                          

        wait for SYSCLK_PERIOD;

        TX_Data  <= X"9486576758050505";

        wait for SYSCLK_PERIOD;

        TX_EOP <= '1';

        TX_Data <= X"60b35d5dc4a582a7";

        wait for SYSCLK_PERIOD; --Test influencing pause state position

        TX_EOP <= '0';

        wait for SYSCLK_PERIOD*16;

        TX_SOP <= '1';

        TX_Data <= X"4f21a2a3a4a5a6a7";

        wait for SYSCLK_PERIOD;

        TX_Data <= X"995e5a5c5b60f2a0";

        wait for SYSCLK_PERIOD;

        TX_Data  <= X"635e22a3a4a5a7a7";

        wait for SYSCLK_PERIOD;

        TX_Data  <= X"70000FFF000000F0";

        wait for SYSCLK_PERIOD*2;

        TX_Data <= X"2f5e5d5c5b5a5958";

        wait for SYSCLK_PERIOD;

        TX_Data <= X"4f21a2a3a4a5a6a7";

        wait for SYSCLK_PERIOD;

        TX_Data <= X"5f5e5a5c5b60f2a0";

        wait for SYSCLK_PERIOD;

        TX_Data  <= X"635e22a3a4a5a7a7";

        wait for SYSCLK_PERIOD;

        TX_Data  <= X"70000FFF000000F0";

        wait for SYSCLK_PERIOD*2;

        TX_Data <= X"2f5e5d5c5b5a5958";

        wait for SYSCLK_PERIOD*12;

        TX_Data <= X"4f5e5d5c5b5a5958";

        wait for SYSCLK_PERIOD;

        TX_SOP <= '0';

        TX_EOP <= '1';

        wait for SYSCLK_PERIOD;

        wait for SYSCLK_PERIOD*4;

        wait;

    end process;

end architecture tb_interlaken_interface;