this circuit is good for use? (bitfury chip)

[avivmas]

hello people
I'm not really a professional.
but i want to try this circuit with my raspberry pi.
https://i.imgur.com/o2m2UMq.png
i have bitfury 55nm chip.
i can use it? not make some problem?
missing something or it will not work?

thanks for help!

[dentldir]

You will need some kind of a level shifter to get the 3.3v signal from the Pi down to 1.8v and back if I understand correctly.  I've seen everything from a single resistor to dedicated level shifter ICs in the Bitfury design thread.

[avivmas]

thanks.
and what i need in IOVDD and IOREF?
IOVDD leave like this or to connect them to 0.9V?

[Deafboy]

Raspberry pi shield with just a few chips would be great. Avivmas, if you do that post the pictures.

[avivmas]

when the community here help me I can build something...

[dentldir]

I believe they both connect to 0.9V.

Sorry, that was totally wrong.  IOVDD is 1.8V.  IOREF is 0.9V.

[avivmas]

thanks 
IOREF is not GND? you sure that is need 0.9?

[dropt]

Here's a link to a 49 page thread started by the chip designer.  All of the questions you are asking have been answered in the linked thread.  Also answered in this thread are most (if not all) the questions you're going to ask as you proceed with your project.

https://bitcointalk.org/index.php?topic=228677.0

[balanghai]

Is this a single chip setup per pi? Isn't it a bit costly to do that?

[avivmas]

is more cheaper

[vs3]

Here are some good news for you:

Punin (and buzzDave) 16-chip modular design:

Update:
{...}
And last but not least I was given permission to release our M-board and H-card schematics to the public!

Download in zipped eagle .sch format here:
M-Board v2.3
H-Card v1.2

You can also check the NanoFury project for a 1-chip design (see my signature)

Enjoy!