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48 lines
1.9 KiB
VHDL
48 lines
1.9 KiB
VHDL
-- $Id: sys_conf1.vhd 1369 2023-02-08 18:59:50Z mueller $
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-- SPDX-License-Identifier: GPL-3.0-or-later
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-- Copyright 2023- by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
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--
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------------------------------------------------------------------------------
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-- Package Name: sys_conf
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-- Description: Definitions for sys_tst_serloop1_b3 (for synthesis)
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--
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-- Dependencies: -
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-- Tool versions: viv 2022.1; ghdl 2.0.0
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-- Revision History:
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-- Date Rev Version Comment
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-- 2023-02-07 1369 1.0 Initial version
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------------------------------------------------------------------------------
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library ieee;
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use ieee.std_logic_1164.all;
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use work.slvtypes.all;
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package sys_conf is
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-- configure clocks --------------------------------------------------------
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constant sys_conf_clksys_vcodivide : positive := 1;
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constant sys_conf_clksys_vcomultiply : positive := 12; -- vco 1200 MHz
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constant sys_conf_clksys_outdivide : positive := 10; -- sys 120 MHz
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constant sys_conf_clksys_gentype : string := "MMCM";
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constant sys_conf_clkdiv_usecdiv : integer := 100; -- default usec
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constant sys_conf_clkdiv_msecdiv : integer := 1000; -- default msec
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-- configure hio interfaces -----------------------------------------------
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constant sys_conf_hio_debounce : boolean := true; -- instantiate debouncers
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-- configure serport ------------------------------------------------------
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constant sys_conf_uart_defbaud : integer := 115200; -- default 115k baud
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-- derived constants =======================================================
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constant sys_conf_clksys : integer :=
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((100000000/sys_conf_clksys_vcodivide)*sys_conf_clksys_vcomultiply) /
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sys_conf_clksys_outdivide;
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constant sys_conf_clksys_mhz : integer := sys_conf_clksys/1000000;
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constant sys_conf_uart_cdinit : integer :=
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(sys_conf_clksys/sys_conf_uart_defbaud)-1;
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end package sys_conf;
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