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