Ok today saw the first bitstream in operation working correctly in all FPGA positions. We found a magic combination of coms stability and tool settings to allow a Icarus style bitstream to build. Now don't to excited as to achieve the coms stability we made the serial interface and hash core all run on a common clock of 50MHz so that's way off on the performance. However we are migrating this now to 100Mhz operation as the next stage and crossed fingers that will work. After that we will improve the coms modules and fix the problem properly so we can go faster again.
We needed a small tweek for stability on the in-built programmer but that tweek has worked and we are now checking that is ok on a large sample of boards.If that sample test proves positive we will move to full shipping release tomorrow.
Yohan,
goood news! Are you using a miner to test them or are you feeding them by hand, so to speak?
spiccioli