![]() | Volume 5: No. 43 |
Hugo de Garis of ATR (Kyoto) believes that evolvable hardware
(EHW) based on FPGA chips will become a billion dollar industry.
At present, he counts only three researchers working on it.
Tetsuya Higuchi, at ETL, has $1M from MITI to develop an evolvable
chip by 3/97. (Automatic welding is one of his test domains.)
Hitoshi Hemmi, at ATR, uses genetic programming to develop
functions in software, then downloads them to programmable gate
arrays. Adrian Thompson, at Sussex University, is the only person
modifying the FGPA configuration with each evolutionary step.
One advantage of EHW is that you don't need to synchronize to an
external clock pulse: the logic circuits will form around the time
constants of the hardware substrate. (Inman Harvey argues that
the digital domain is too spikey, and that analog functions
should be used instead.) One test application by Thomson was
an oscillator with a period in milliseconds, evolved from
nanosecond components. FGPA reprogramming currently takes
30 minutes, but Xilinx is about to introduce an $80 Series 6000
FPGA that will be much faster. Thompson intends to evolve
control links that will be faster than the software provided
by Xilinx. The next EHard workshop/conference will be in Japan
in 10/96. [ There is now a web page for neuro-fuzzy VLSI
implementations and their application to real-time control,
at If you have questions on genetic programming, see
the GP home page, FAQ, papers, bibliography, code archive,
and links at