clk200hz.v

本实例是学习fpga的入门程序 希望大家喜欢

////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 1995-2005 Xilinx, Inc.  All rights reserved.
////////////////////////////////////////////////////////////////////////////////
//   ____  ____ 
//  /   /\/   / 
// /___/  \  /    Vendor: Xilinx 
// \   \   \/     Version : 8.1i
//  \   \         Application : xaw2verilog
//  /   /         Filename : clk200hz.v
// /___/   /\     Timestamp : 08/07/2007 00:22:31
// \   \  /  \ 
//  \___\/\___\ 
//
//Command: xaw2verilog -intstyle F:/Xilinx8/FPGA_V1/frequece/clk200hz.xaw -st clk200hz.v
//Design Name: clk200hz
//Device: xc3s400-5pq208
//
// Module clk200hz
// Generated by Xilinx Architecture Wizard
// Written for synthesis tool: XST
`timescale 1ns / 1ps

module clk200hz(CLKIN_IN, 
                RST_IN, 
                CLKFX_OUT, 
                CLKIN_IBUFG_OUT, 
                CLK0_OUT, 
                CLK2X_OUT, 
                LOCKED_OUT);

    input CLKIN_IN;
    input RST_IN;
   output CLKFX_OUT;
   output CLKIN_IBUFG_OUT;
   output CLK0_OUT;
   output CLK2X_OUT;
   output LOCKED_OUT;
   
   wire CLKFB_IN;
   wire CLKFX_BUF;
   wire CLKIN_IBUFG;
   wire CLK0_BUF;
   wire CLK2X_BUF;
   wire GND1;
   
   assign GND1 = 0;
   assign CLKIN_IBUFG_OUT = CLKIN_IBUFG;
   assign CLK2X_OUT = CLKFB_IN;
   BUFG CLKFX_BUFG_INST (.I(CLKFX_BUF), 
                         .O(CLKFX_OUT));
   IBUFG CLKIN_IBUFG_INST (.I(CLKIN_IN), 
                           .O(CLKIN_IBUFG));
   BUFG CLK0_BUFG_INST (.I(CLK0_BUF), 
                        .O(CLK0_OUT));
   BUFG CLK2X_BUFG_INST (.I(CLK2X_BUF), 
                         .O(CLKFB_IN));
   // Period Jitter (unit interval) for block DCM_INST = 0.14 UI
   // Period Jitter (Peak-to-Peak) for block DCM_INST = 0.70 ns
   DCM DCM_INST (.CLKFB(CLKFB_IN), 
                 .CLKIN(CLKIN_IBUFG), 
                 .DSSEN(GND1), 
                 .PSCLK(GND1), 
                 .PSEN(GND1), 
                 .PSINCDEC(GND1), 
                 .RST(RST_IN), 
                 .CLKDV(), 
                 .CLKFX(CLKFX_BUF), 
                 .CLKFX180(), 
                 .CLK0(CLK0_BUF), 
                 .CLK2X(CLK2X_BUF), 
                 .CLK2X180(), 
                 .CLK90(), 
                 .CLK180(), 
                 .CLK270(), 
                 .LOCKED(LOCKED_OUT), 
                 .PSDONE(), 
                 .STATUS());
   defparam DCM_INST.CLK_FEEDBACK = "2X";
   defparam DCM_INST.CLKDV_DIVIDE = 2.000000;
   defparam DCM_INST.CLKFX_DIVIDE = 1;
   defparam DCM_INST.CLKFX_MULTIPLY = 4;
   defparam DCM_INST.CLKIN_DIVIDE_BY_2 = "FALSE";
   defparam DCM_INST.CLKIN_PERIOD = 20.000000;
   defparam DCM_INST.CLKOUT_PHASE_SHIFT = "NONE";
   defparam DCM_INST.DESKEW_ADJUST = "SYSTEM_SYNCHRONOUS";
   defparam DCM_INST.DFS_FREQUENCY_MODE = "LOW";
   defparam DCM_INST.DLL_FREQUENCY_MODE = "LOW";
   defparam DCM_INST.DUTY_CYCLE_CORRECTION = "TRUE";
   defparam DCM_INST.FACTORY_JF = 16'h8080;
   defparam DCM_INST.PHASE_SHIFT = 0;
   defparam DCM_INST.STARTUP_WAIT = "FALSE";
endmodule