Dear Ben

I don't understand

I'm sorry if there are error but I'm not english language native

Hello Bitfury group,

I'm working for a "big electronic italian company" and I'm developing for them mining hardware.

They want create new top line products class and is in this new line that mining hardware will be placed.

We have already started developing a breakout board with  the only one existing 55nm chip.

Now we need assurance that you will sell 28nm chip otherwise our work will be lost.

In private message I will send you name of company and CEO contact.

Thanks

Dear Bitfury Group

what is discutible in your behaviour is your stop in sell chips.

I and other had invested money for project device that use your 55nm bitfury chips and now I can only trash its and all already acquired components....

Is thanks to people like our (that had used your chip) that you are now BITFURY and not bitfury.....

Thanks



 

Dear Bitfury,

if I correctly understand, you will not produce 20nm chip...but only sell hash power.

If this is the case you have damage all people that have had faith in your company and have invested real money for project new device...

I'm one of this.

I hope to be wrong.

Please reply me

 

Hi, how you have obtained 3.65 GH?  Have you used mcp2210 usb to spi o other chip? Thanks

Salve

sono un ingegnere elettronico di 45 anni.

Sono in cerca di un imprenditore/finanziatore che sia interessato alla produzione di hardware per effettuare mining.

Ho realizzato prototipi funzionanti.

Scrivetemi qui se realmente interessati: gpezzella@yahoo.com

Grazie

Hi at all

I notice that when bitfury rev2 start I had great HW Error.
It slowly go down in a few minutes.

How can I avoid this?

1)Use big capacitor on power supply?
2)Use soft start at power on?

Now that I had end test I need to acquire rev2 chip but main sell site is down.
Can you help me?

Thanks

Hi at all
I notice that when bitfury chip start, there is great hardware error.

After few second it slowly begin to go down.

Do you think that is better prolong soft start time of Vcore?

If not, how i can reduce it?

Thanks

Hi at all
I notice that when bitfury chip start, there is great hardware error.

After few second it slowly begin to go down.

Do you think that is better prolong soft start time of Vcore?

If not, how i can reduce it?

Thanks

bfgminer support bitfury daisy chain?
If yes which is the max number?
Thanks

Hi VS3
How you obtain 12GH from every device???

I notice that error rate start very high and after slowly go down.

Is soft startup of Vcore a way to improve it?
Thanks

Hello

are many days that http://www.bitfurystrikesback.com/ is offline.

Where I can acquire bitfury II generation chips?

Thanks

Hi Luke
Vladimir say that is better connect miso-mosi-sck of atmel328 with misoout mosiout sckout of bitfury chip. Then write a driver like nf1_init (sorry but in vb.net because it is the language that I know better) and you should translate in C.
About the algorithm that manage the energetic behaviour of device, it should be written in external file "PowerManagementScript" so anyone could change it.
What do you think?

I will ask to vladimir that is SPI GURU

I should connect miso mosi sck in miso out mosi out sck out and a free gpio as chip select?

If it is more easy then do it :-)

Maybe anyone could wrote personal efficiency algorithm in external include file.

Say me how send you this information

Thanks

Hi Luke
The goal is set the device for have the best value mW@GHash (in other words best performance)

For do this I need to measure power and I already do it, but I need also to know hash rate and change number of bit.

In summary I need two function:
1 - receive hash rate
2-  set bit number

I have free pin on MCP2210 and of course free pin on micro

I think you will implement easily this 2 function.

Thanks in advice

1volt x 0.8 ampere
800mw@1.86GHash/sec

Now is 0.8volt x 0.77 ampere
560mW@1.83GHash

430mW at GHash seem good value.
What do you think?