sys_conf.vhd

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-- $Id: sys_conf.vhd 1181 2019-07-08 17:00:50Z mueller $
-- SPDX-License-Identifier: GPL-3.0-or-later
-- Copyright 2010-2016 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
--
------------------------------------------------------------------------------
-- Package Name:   sys_conf
-- Description:    Definitions for sys_tst_rlink_n2 (for synthesis)
--
-- Dependencies:   -
-- Tool versions:  xst 12.1-14.7; ghdl 0.29-0.33
-- Revision History: 
-- Date         Rev Version  Comment
-- 2010-12-29   351   1.0    Initial version
------------------------------------------------------------------------------
 
library ieee;
use ieee.std_logic_1164.all;
 
use work.slvtypes.all;
 
package sys_conf is
 
  -- configure clocks --------------------------------------------------------
  constant sys_conf_clkfx_divide : positive   :=   1;
  constant sys_conf_clkfx_multiply : positive :=   1;   -- 
 
  -- configure rlink and hio interfaces --------------------------------------
  constant sys_conf_ser2rri_defbaud : integer := 115200;   -- default 115k baud
  constant sys_conf_hio_debounce : boolean := true;    -- instantiate debouncers
 
  -- derived constants =======================================================
 
  constant sys_conf_clksys : integer :=
    (50000000/sys_conf_clkfx_divide)*sys_conf_clkfx_multiply;
  constant sys_conf_clksys_mhz : integer := sys_conf_clksys/1000000;
 
  constant sys_conf_ser2rri_cdinit : integer :=
    (sys_conf_clksys/sys_conf_ser2rri_defbaud)-1;
  
end package sys_conf;