Re: Spartan-3A XC3S1400A development board?

Ron wrote:
Greetings,

Would anyone happen to know where if could purchase an FPGA development
board with the Xilinx Spartan-3A XC3S1400A FPGA on it (or a socketed
board capable of accepting an XC3S1400A) please? I need the 32
multipliers on the 1400A, but the starter board Xilinx sells through
Avnet only comes with the XC3S700A FPGA which only has 16 usable
multipliers (yes, I know there are actually 20, but since I'm doing
extended precision binary multiplication I can only use 16 of them. Why
on earth Xilinix incorporated a number of multipliers that isn't a power
of two is beyond me!). Incidentally, the FPGA doesn't necessarily have
to be a Spartan or even a Xilinx part as long as it has fast hardware
multipliers.

My I/O needs are minimal. All I really need are 8 switches and 8 Leds
(although a hexadecimal display would be great). Basically all I need is
something to display a binary factor of the RSA-704 and RSA-768
challenge numbers. ;-)

Any suggestions?

Thanks,

Ron

You could get a MicroBlaze development kit from Xilinx authorized distributors for $595. The Spartan-3E has 36 multipliers (which presents, it appears, 32 for your needs) and isn't geared toward I/O optimized needs like the Spartan-3A but logic optimized (or at least that's their marketing pitch).

http://www.xilinx.com/onlinestore/spartan_boards.htm

Maybe you can use the MicroBlaze, maybe you can't. It's a shame the board isn't offered separately.

- John_H
.

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