Hi
I am interested in developing the Bitfury “H” board into a standalone (computer driven) miner, I am primarily a hardware engineer and do very little with software so I need some real help. I would like to propose a single chip interface (CY7C65211) as the USB to SPI adapter. This UART is very flexible and from everything I have read in the forums just may work. I am fully aware power brick will be required and I have omitted the “H” board power connections from the drawing. I really am interested in your comments as to if this is even possible and if so what software would recognize it. I am inserting a rough drawing for your review and comment. This drawing is basically direct from the app note.
Thanks and please be kind.
You need a bit of processing power to get the bitfury ASICs
to do useful work. Can this CY7C65211 execute user defined
code or is it just an USB transceiver chip? If the latter is
the case, you could add a processor for that. We use an
ARM Cortex M3, fast and cheap.
Also the ASICs have 1V8 IO signals, so there should be
level shifters somewhere in the SPI path. Coming from the
processor it could be just resistor dividers (SCK and MOSI),
coming from the ASICs it can be a small chip (MISO).
intron
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. And also, just by the PCIe power connectors there was a text "Please use both 12V connectors & PCI polarity" which got truncated to "Please use both". There was a small tribute to Satoshi also, which got truncated. Mental note: Do not use text with multiple lines.
