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-- $Id: tb_tst_serloop_s3.vhd 444 2011-12-25 10:04:58Z mueller $

--

-- Copyright 2011- by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>

--

-- This program is free software; you may redistribute and/or modify it under

-- the terms of the GNU General Public License as published by the Free

-- Software Foundation, either version 2, 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 complete details.

--

------------------------------------------------------------------------------

-- Module Name:    tb_tst_serloop_s3 - sim

-- Description:    Test bench for sys_tst_serloop_s3

--

-- Dependencies:   simlib/simclk

--                 vlib/xlib/dcm_sfs

--                 sys_tst_serloop_s3 [UUT]

--                 tb/tb_tst_serloop

--

-- To test:        sys_tst_serloop_s3

--

-- Target Devices: generic

--

-- Revision History: 

-- Date         Rev Version  Comment

-- 2011-12-23   444   1.1    use new simclk

-- 2011-11-17   426   1.0.1  use dcm_sfs now

-- 2011-11-06   420   1.0    Initial version 

------------------------------------------------------------------------------

library ieee;

use ieee.std_logic_1164.all;

use ieee.numeric_std.all;

use ieee.std_logic_textio.all;

use std.textio.all;

use work.slvtypes.all;

use work.xlib.all;

use work.simlib.all;

entity tb_tst_serloop_s3 is

end tb_tst_serloop_s3;

architecture sim of tb_tst_serloop_s3 is

  signal CLK50 : slbit := '0';

  signal CLK_STOP  : slbit := '0';

  signal CLKS  : slbit := '0';

  signal I_RXD : slbit := '1';

  signal O_TXD : slbit := '1';

  signal I_SWI : slv8 := (others=>'0');

  signal I_BTN : slv4 := (others=>'0');

  signal O_FUSP_RTS_N : slbit := '0';

  signal I_FUSP_CTS_N : slbit := '0';

  signal I_FUSP_RXD : slbit := '1';

  signal O_FUSP_TXD : slbit := '1';

  signal RXD : slbit := '1';

  signal TXD : slbit := '1';

  signal SWI : slv8 := (others=>'0');

  signal BTN : slv4 := (others=>'0');

  signal FUSP_RTS_N : slbit := '0';

  signal FUSP_CTS_N : slbit := '0';

  signal FUSP_RXD : slbit := '1';

  signal FUSP_TXD : slbit := '1';

  constant clock_period : time :=   20 ns;

  constant clock_offset : time :=  200 ns;

  constant delay_time :   time :=    2 ns;

begin

  SYSCLK : simclk

    generic map (

      PERIOD => clock_period,

      OFFSET => clock_offset)

    port map (

      CLK       => CLK50,

      CLK_STOP  => CLK_STOP

    );

  DCM_S : dcm_sfs

    generic map (

      CLKFX_DIVIDE   => 5,

      CLKFX_MULTIPLY => 6,

      CLKIN_PERIOD   => 20.0)

    port map (

      CLKIN   => CLK50,

      CLKFX   => CLKS,

      LOCKED  => open

    );

  UUT : entity work.sys_tst_serloop_s3

    port map (

      I_CLK50      => CLK50,

      I_RXD        => I_RXD,

      O_TXD        => O_TXD,

      I_SWI        => I_SWI,

      I_BTN        => I_BTN,

      O_LED        => open,

      O_ANO_N      => open,

      O_SEG_N      => open,

      O_MEM_CE_N   => open,

      O_MEM_BE_N   => open,

      O_MEM_WE_N   => open,

      O_MEM_OE_N   => open,

      O_MEM_ADDR   => open,

      IO_MEM_DATA  => open,

      O_FUSP_RTS_N => O_FUSP_RTS_N,

      I_FUSP_CTS_N => I_FUSP_CTS_N,

      I_FUSP_RXD   => I_FUSP_RXD,

      O_FUSP_TXD   => O_FUSP_TXD

    );

  GENTB : entity work.tb_tst_serloop

    port map (

      CLKS      => CLKS,

      CLKH      => CLKS,

      CLK_STOP  => CLK_STOP,

      P0_RXD    => RXD,

      P0_TXD    => TXD,

      P0_RTS_N  => '0',

      P0_CTS_N  => open,

      P1_RXD    => FUSP_RXD,

      P1_TXD    => FUSP_TXD,

      P1_RTS_N  => FUSP_RTS_N,

      P1_CTS_N  => FUSP_CTS_N,

      SWI       => SWI,

      BTN       => BTN

    );

  I_RXD        <= RXD          after delay_time;

  TXD          <= O_TXD        after delay_time;

  FUSP_RTS_N   <= O_FUSP_RTS_N after delay_time;

  I_FUSP_CTS_N <= FUSP_CTS_N   after delay_time;

  I_FUSP_RXD   <= FUSP_RXD     after delay_time;

  FUSP_TXD     <= O_FUSP_TXD   after delay_time;

  I_SWI <= SWI after delay_time;

  I_BTN <= BTN after delay_time;

end sim;