I'm studying the idea of compressing a Virtex 2 bitstream for storage in non-Xilinx FLASH as well as microprocessor-based FPGA loading. I wonder if anyone knows of statistics on what compression ratios can be attained for designs of various degrees of complexity. The design I am looking at will compress to about 100K from 500K (using WinZIP as a benchmarking tool). Utilization is moderate and it does not have lots of ROM initializations in the bitstream.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Martin Euredjian eCinema Systems, Inc.
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