Re: Official Open Source FPGA Bitcoin Miner (Spartan-6 Now Tops Performance per $!)
For anyone who has run this design on the LX9 microboard, what sort of hashrate did you get? And how many slices were used (and at what unrolling level?).
200MHz
5034 FF [44%]
3247 LUT6 [56%]
0 BRAM
0 DSP48A1
3.125MH/s
in xc6slx9-2. It finishes 1 SHA256(SHA256(x)) every 64 clocks.
With a few tricks it could probably fit 2 engines, for 6.25 MH/s total.
Not exactly going to beat an ATI GPU, but it's a fun toy.
-rph