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###############################################################################
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## (c) Copyright 2009 Xilinx, Inc. All rights reserved.
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##
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## This file contains confidential and proprietary information
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## of Xilinx, Inc. and is protected under U.S. and
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## international copyright and other intellectual property
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## laws.
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##
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## DISCLAIMER
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## This disclaimer is not a license and does not grant any
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## rights to the materials distributed herewith. Except as
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## otherwise provided in a valid license issued to you by
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## Xilinx, and to the maximum extent permitted by applicable
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## law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
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## WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
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## AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
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## BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
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## INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
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## (2) Xilinx shall not be liable (whether in contract or tort,
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## including negligence, or under any other theory of
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## liability) for any loss or damage of any kind or nature
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## related to, arising under or in connection with these
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## materials, including for any direct, or any indirect,
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## special, incidental, or consequential loss or damage
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## (including loss of data, profits, goodwill, or any type of
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## loss or damage suffered as a result of any action brought
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## by a third party) even if such damage or loss was
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## reasonably foreseeable or Xilinx had been advised of the
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## possibility of the same.
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##
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## CRITICAL APPLICATIONS
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## Xilinx products are not designed or intended to be fail-
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## safe, or for use in any application requiring fail-safe
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## performance, such as life-support or safety devices or
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## systems, Class III medical devices, nuclear facilities,
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## applications related to the deployment of airbags, or any
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## other applications that could lead to death, personal
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## injury, or severe property or environmental damage
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## (individually and collectively, "Critical
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## Applications"). Customer assumes the sole risk and
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## liability of any use of Xilinx products in Critical
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## Applications, subject only to applicable laws and
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## regulations governing limitations on product liability.
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##
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## THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
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## PART OF THIS FILE AT ALL TIMES.
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##
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###############################################################################
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## ____ ____
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## / /\/ /
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## /___/ \ / Vendor : Xilinx
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## \ \ \/ Version : 3.92
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## \ \ Application : MIG
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## / / Filename : readme.txt
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## /___/ /\ Date Last Modified : $Date: 2011/06/02 07:17:00 $
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## \ \ / \ Date Created : Mon Oct 19 2009
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## \___\/\___\
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##
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## Device : Spartan-6
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## Design Name : DDR/DDR2/DDR3/LPDDR
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## Purpose : Steps to run simulation using ISIM/Modelsim simualtor in this folder
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## Assumptions:
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## - Simulation takes place in \sim\ folder of MIG output directory
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## Reference :
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## Revision History:
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###############################################################################
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The sim/functional folder has files to perform functional simulation of the design.
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1. Simulation using Modelsim simulator
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A) sim.do File :
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1) The 'sim.do' file has commands to compile and simulate memory interface
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design and run the simulation for specified period of time.
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2) It has the syntax to Map the required libraries.
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Also, $XILINX environment variable must be set in order to compile glbl.v file
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3) Displays the waveforms that are listed with "add wave" command.
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B) Steps to run the Modelsim simulation:
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1) The user should invoke the Modelsim simulator GUI.
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2) Change the present working directory path to the sim/functional folder.
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In Transcript window, at Modelsim prompt, type the following command to
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change directory path.
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cd
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2) Run the simulation using sim.do file.
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At Modelsim prompt, type the following command:
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do sim.do
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3) To exit simulation, type the following command at Modelsim prompt:
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quit -f
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4) Verify the transcript file for the memory transactions.
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2. Simulation using ISIM simulator
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A) Following files are provided :
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1) The '.prj' file contains the list of all the files associated with the design.
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It also contains the hdl, library and the source file name.
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2) The '.tcl' file contains the Tcl commands for simulation and
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resume on error.
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3) The 'isim.bat' has commands which use '.prj' and '.tcl' files.
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B) Steps to run the ISIM simulation:
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The user should execute the file isim.bat, which does the following steps:
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1) Compiles, elaborates the design and generates the simulation executable using
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the fuse command in 'isim.bat' file.
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2) Invokes the ISIM GUI.
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3) User can add required signals from objects window to the waveform viewer and run
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simulation for specified time using the command "run
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