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[/] [w11/] [tags/] [w11a_V0.6/] [rtl/] [sys_gen/] [tst_serloop/] [nexys3/] [tb/] [sys_conf1_sim.vhd] - Rev 24
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-- $Id: sys_conf1_sim.vhd 441 2011-12-20 17:01:16Z 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. -- ------------------------------------------------------------------------------ -- Package Name: sys_conf -- Description: Definitions for sys_tst_serloop1_n3 (for test bench) -- -- Dependencies: - -- Tool versions: xst 13.1; ghdl 0.29 -- Revision History: -- Date Rev Version Comment -- 2011-12-11 438 1.0 Initial version ------------------------------------------------------------------------------ library ieee; use ieee.std_logic_1164.all; use work.slvtypes.all; package sys_conf is -- in simulation a usec is shortened to 20 cycles (0.2 usec) and a msec -- to 100 cycles (1 usec). This affects the pulse generators (usec) and -- mainly the autobauder. A break will be detected after 128 msec periods, -- this in simulation after 128 usec or 6400 cycles. This is compatible with -- bitrates of 115200 baud or higher (115200 <-> 8.68 usec <-> 521 cycles) constant sys_conf_clkdiv_usecdiv : integer := 20; -- default usec constant sys_conf_clkdiv_msecdiv : integer := 5; -- shortened ! constant sys_conf_hio_debounce : boolean := false; -- no debouncers constant sys_conf_uart_cdinit : integer := 1-1; -- 1 cycle/bit in sim end package sys_conf;