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Introduction: VHDL FPGA mining in Kintex XC7K325TL-2 devices Post #1
by
Xilinx_guy
on 15/07/2011, 22:31:22 UTC
It looks like I'll have to slog through a series of introductory posts, just to be able to send private messages. 

I'm interested in developing bitcoin miners using new cutting edge FPGA's from Xilinx.  I am targeting the new Artix and Kintex family, which look like they can hit extremely high MHashes/Watt.   
My first trials have been using the VHDL code posted by Olaf.Mandel here:  http://forum.bitcoin.org/index.php?topic=22426.msg300906#msg300906

I'm targeting 3 parallel cores running at 200 MHz each for a hash rate of 600 MH/sec.   The power is phenomenal in the .9V low power part, only 5.2 watts, giving a figure of merit well over 100 MHashes/watt.

These parts are available now in engineering samples, and in full production next year.  I'm thinking that a PCIe card built with 4 of these will run about 25 watts, and produce anywhere from 2.5 to 3 GHashes/sec.   Nice!

I see that mpfrank has rolled his own pipelined VHDL... http://forum.bitcoin.org/index.php?topic=22415.0   I'd like to try it, but I can't send him a message!   Can someone let him know I'd like to try his code on a Kintex?

Xilinx_Guy

P.S.  I work for Xilinx, so I can't ethically build or sell my own FPGA miner.   But I want to help!   Xilinx users can message me for help or advice! 
         For those who want to keep their VHDL/verilog private, I can execute a Xilinx NDA if you are nervous.