I am using an FPGA to mine bitcoins in a pool, as you can see below I am not really very successful:
[1 accepted, 48 failed, 148.90 +/- 21.27 Mhash/s]
It is running at 150 MhZ but I only have 1 accepted share out of 49. I guess this quota does not look to healhty. Anyone an idea what could be wrong?