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Readme.txt

LM4550 AC'97 Stereo Audio Codec Expansion Module demo code
Numato Lab
http://www.numato.com
http://www.numato.cc

This package contains source and other files necessary to build LM4550 
AC'97 Stereo Audio Codec Expansion Module demo for the following boards.

1. Elbert V2 Spartan 3A FPGA Development Board
   http://numato.com/elbert-v2-spartan-3a-fpga-development-board.html

2. Mimas Spartan 6 FPGA Development Board
   http://numato.com/mimas-spartan-6-fpga-development-board.html

3. Mimas V2 Spartan 6 FPGA Development Board with DDR SDRAM
   http://numato.com/mimas-v2-spartan-6-fpga-development-board-with-ddr-sdram.html  

4. Saturn Spartan 6 FPGA Development Board with DDR SDRAM
   http://numato.com/saturn-spartan-6-fpga-development-board-with-ddr-sdram.html
   
5. Waxwing Spartan 6 Mini Module With Carrier
   http://numato.com/waxwing-spartan-6-mini-module-with-carrier.html

6. Waxwing Spartan 6 FPGA Development Board
   http://numato.com/waxwing-spartan-6-fpga-development-board.html
   
7. Skoll Kintex 7 FPGA Development Board
   http://numato.com/skoll-kintex-7-fpga-development-board/
   
The LM4550 AC'97 Stereo Audio Codec Expansion Module used to test this code is available at
http://numato.com/fpga-boards/expansion-modules/lm4550-ac97-stereo-audio-codec-expansion-module.html

IO Breakout Boards make it easier to attach expansion modules to Saturn and
Mimas. Please see links to IO Breakout boards below.
http://numato.com/fpga-boards/expansion-modules/io-breakout-module-for-mimas.html
http://numato.com/fpga-boards/expansion-modules/io-breakout-module-for-saturn.html
   
There are two ways to build this project. Either using Xilinx ISE or running 
easy to use batch files. ISE Webpack must be installed with proper license in 
either case. By default the project is configured to build for XC6SLX45. To 
build for a different device you need to open LM4550AudioExpansionModule.xise
in ISE and change the device in project properties and rebuild.

1. Building the project using Xilinx ISE
   Open the project file LM4550AudioExpansionModule.xise using ISE. Right 
   click on the "Generate Programming Files" process in the process window and
   select "Rerun all". You may need to add appropriate user constraints file to
   the project depending on which board you are building the project for. User
   Constraints Files for all supported boards can be found inside "ucf" folder.
   
2. Building the project using Command Line Window
   Open command line window and navigate to the folder where the project files
   are located. Invoke the batch file and give necessary input asked. Make sure
   all build steps finish successfully. You will need to register the path to Xilinx
   build tools (usually C:\Xilinx\xx.xx\ISE_DS\ISE\bin\nt) in PATH environment
   variable for the batch files to work.
   
ISE Webpack software and license is available for free at http://www.xilinx.com
   
When the build finishes successfully a .bin and a .bit file should be created in
the folder name binary.

----------------------------------------------------------------------------------------------------------------
Kintex 7 Series:

There is a "LM4550AudioExpansionModule.xpr" vivado project file. Just open it by double
clicking. By default the project is configured for Skoll. Click "Generate Bitstream"
and choose Yes in any subsequent dialog windows.
----------------------------------------------------------------------------------------------------------------
Sr No.  Numato Lab's FPGA Board    Header Used
        
1          Elbert V2                  P1 
2          Mimas*                     P3
3          Mimas V2                   P6 
4          Saturn LX16**              P10
5          Saturn LX45**              P10
6          Waxwing Carrier            P5
7          Waxwing Dev Board          P4
8          Skoll(IO Expansion on P5)  P12-P1

*  Mimas Expansion Connector connected to Header P1 of Mimas.
** Saturn Expansion Connector connected to Header P2 of Saturn Spartan 6 Development Board.