Xilinx CoreGen Block Memory Generator

Memory Initialization:
http://cseweb.ucsd.edu/classes/sp08/cse141L/lab4/coregen-tutorial.html


Memory Initialization
http://www.xilinx.com/support/documentation/ip_documentation/blk_mem_gen/v7_3/pg058-blk-mem-gen.pdf


The memory contents can be optionally initialized using a memory coefficient (COE) file or
by using the default data option. A COE file can define the initial contents of each individual
memory location, while the default data option defines the initial content of all locations.

Hints for creating COE files


How to open Memory Editor:
http://forums.xilinx.com/t5/Installation-and-Licensing/problem-in-memory-editor-in-ise-12-3/td-p/187608

Use Memory Editor:  

In ISE 10.1.03, Memory Editor can be accessed from the CORE Generator interface by selecting Tools -> Memory Editor.  

In ISE 11.1 and later, Memory Editor can be accessed from a script file. Use mem_edit.bat (Windows platforms) or mem_edit (Linux platforms). This script is available in the $XILINX/bin/&ltOS&gt directory. 

The Memory Editor can be used to create COE files in two ways: 

1. Enter your memory data values directly into the Memory Editor GUI and then select File -> Generate -> COE files(s) to create the COE files. 
2. Enter your memory data into Excel (use whatever formulas you need there), export to CSV format, and then Import the CSV into Memory Editor (File -> Import -> CSV file). When a CSV file is imported, Memory Editor prompts you to specify the Memory Depth, Word Width, Data and Address Radix, and Start Address. 

After the CSV file has been imported, you should inspect the Memory Content window for accuracy, and then select File -> Generate -> COE files(s) to create the COE files.


Creating a Memory
http://www.xilinx.com/itp/xilinx10/isehelp/cgn_p_memed_single_block.htm