my_dcm.vhd

FPGA与ARM EPI通信，控制16路步进电机和12路DC马达 VHDL编写的

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-- Copyright (c) 1995-2010 Xilinx, Inc.  All rights reserved.
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--   ____  ____ 
--  /   /\/   / 
-- /___/  \  /    Vendor: Xilinx 
-- \   \   \/     Version : 12.4
--  \   \         Application : xaw2vhdl
--  /   /         Filename : my_dcm.vhd
-- /___/   /\     Timestamp : 01/04/2013 11:35:13
-- \   \  /  \ 
--  \___\/\___\ 
--
--Command: xaw2vhdl-intstyle D:/FpgaProgram/G510-106T/G510_106T_12_30/ipcore_dir/my_dcm.xaw -st my_dcm.vhd
--Design Name: my_dcm
--Device: xc3s500e-4ft256
--
-- Module my_dcm
-- Generated by Xilinx Architecture Wizard
-- Written for synthesis tool: XST
-- Period Jitter (unit interval) for block DCM_SP_INST = 0.07 UI
-- Period Jitter (Peak-to-Peak) for block DCM_SP_INST = 0.74 ns

library ieee;
use ieee.std_logic_1164.ALL;
use ieee.numeric_std.ALL;
library UNISIM;
use UNISIM.Vcomponents.ALL;

entity my_dcm is
   port ( CLKIN_IN        : in    std_logic; 
          CLKFX_OUT       : out   std_logic; 
          CLKIN_IBUFG_OUT : out   std_logic; 
          CLK0_OUT        : out   std_logic; 
          CLK2X_OUT       : out   std_logic);
end my_dcm;

architecture BEHAVIORAL of my_dcm is
   signal CLKFB_IN        : std_logic;
   signal CLKFX_BUF       : std_logic;
   signal CLKIN_IBUFG     : std_logic;
   signal CLK0_BUF        : std_logic;
   signal CLK2X_BUF       : std_logic;
   signal GND_BIT         : std_logic;
begin
   GND_BIT <= '0';
   CLKIN_IBUFG_OUT <= CLKIN_IBUFG;
   CLK0_OUT <= CLKFB_IN;
   CLKFX_BUFG_INST : BUFG
      port map (I=>CLKFX_BUF,
                O=>CLKFX_OUT);
   
   CLKIN_IBUFG_INST : IBUFG
      port map (I=>CLKIN_IN,
                O=>CLKIN_IBUFG);
   
   CLK0_BUFG_INST : BUFG
      port map (I=>CLK0_BUF,
                O=>CLKFB_IN);
   
   CLK2X_BUFG_INST : BUFG
      port map (I=>CLK2X_BUF,
                O=>CLK2X_OUT);
   
   DCM_SP_INST : DCM_SP
   generic map( CLK_FEEDBACK => "1X",
            CLKDV_DIVIDE => 5.0,
            CLKFX_DIVIDE => 1,
            CLKFX_MULTIPLY => 4,
            CLKIN_DIVIDE_BY_2 => FALSE,
            CLKIN_PERIOD => 40.000,
            CLKOUT_PHASE_SHIFT => "NONE",
            DESKEW_ADJUST => "SYSTEM_SYNCHRONOUS",
            DFS_FREQUENCY_MODE => "LOW",
            DLL_FREQUENCY_MODE => "LOW",
            DUTY_CYCLE_CORRECTION => TRUE,
            FACTORY_JF => x"C080",
            PHASE_SHIFT => 0,
            STARTUP_WAIT => FALSE)
      port map (CLKFB=>CLKFB_IN,
                CLKIN=>CLKIN_IBUFG,
                DSSEN=>GND_BIT,
                PSCLK=>GND_BIT,
                PSEN=>GND_BIT,
                PSINCDEC=>GND_BIT,
                RST=>GND_BIT,
                CLKDV=>open,
                CLKFX=>CLKFX_BUF,
                CLKFX180=>open,
                CLK0=>CLK0_BUF,
                CLK2X=>CLK2X_BUF,
                CLK2X180=>open,
                CLK90=>open,
                CLK180=>open,
                CLK270=>open,
                LOCKED=>open,
                PSDONE=>open,
                STATUS=>open);
   
end BEHAVIORAL;