Hi,
It is possible to connect a spondoolies tech SP20 blade on Raspberry Pi or BeagleBone Black?
Not without considerable development effort.
We give the FPGA - ASIC protocol doc only under NDA.
TechnoBit implemented their own firmware without FPGA.
I don't think it's open source.
I'm working on a driver module for bfgminer that would in theory be able to handle the communications. But not worked out power mgmt yet.