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Re: [Group Buy] 1THs Coincraft A1 28nm ASIC miner shipping from China
Re: [Group Buy] 1THs Coincraft A1 28nm ASIC miner shipping from China
I sent BTC to Qiangminer and got a DHL tacking number last Saturday.
He is very kind and sent my miner quickly.
But, my miner doesn't have pick-up message.
It just [Shipment information received] state.
It mean, he reserved DHL delivery and DHL didn't got package.
Qiangminer didn't reply to my mail from yesterday.
So, I can't get any update from Qiangminer and DHL.
If you consider this Group Buy, be careful.
I can see picked-up message in my tacking information. :-)
He is very kind and sent my miner quickly.
But, my miner doesn't have pick-up message.
It just [Shipment information received] state.
It mean, he reserved DHL delivery and DHL didn't got package.
Qiangminer didn't reply to my mail from yesterday.
So, I can't get any update from Qiangminer and DHL.
If you consider this Group Buy, be careful.
I can see picked-up message in my tacking information. :-)
Re: [CLOSED] Bitmine CoinCraft A1 28nm chip distribution / DIY support
Clarification: SPI Processing shorter Chip Chains
I have been approached by users having difficulties to operate their designs with the official or reference cgminer driver.
Here is the SPI trace provided:
To understand why polling for the ACK (i.e. reading 0x90 00 from the chain) fails in this case, consider how the current implementation accesses the chain:
1) write a command to the first A1, which with every next dummy write is shifted to the next A1
2) to get an ACK, shift the data through the chain until you receive the expected return values
The reference implementation in a first step writes the command and in the second polls for the result. This works with longer chains, but in this case (with 1 or 2 chip chains) fails because the response is obviously returned already while the command is still written.
To circumvent the issue, one needs to search for the ACK already in the RX buffer of the command write step. In the upper case the correct processing would therefore be:
1) write 8 bytes for command 09
2) in the RX buffer search for the ACK (here at position 5)
3) determine how many more words need to be polled for the full ACK (here 2 more words) and do the poll
Unfortunately I have no single chip chain available to test and implement this, but it obviously is no rocket science and should be easily done.
I have been approached by users having difficulties to operate their designs with the official or reference cgminer driver.
Here is the SPI trace provided:
Code:
TX: 8 bytes: 09 00 88 A6 21 84 00 00 //spi_send_command
RX: 8 bytes: 00 00 00 00 09 00 88 A6 //spi_send_command
RX: 2 bytes: 21 84 //spi_poll_result
RX: 2 bytes: 00 00 //spi_poll_result
RX: 2 bytes: 00 00 //spi_poll_result
RX: 8 bytes: 00 00 00 00 09 00 88 A6 //spi_send_command
RX: 2 bytes: 21 84 //spi_poll_result
RX: 2 bytes: 00 00 //spi_poll_result
RX: 2 bytes: 00 00 //spi_poll_result
To understand why polling for the ACK (i.e. reading 0x90 00 from the chain) fails in this case, consider how the current implementation accesses the chain:
1) write a command to the first A1, which with every next dummy write is shifted to the next A1
2) to get an ACK, shift the data through the chain until you receive the expected return values
The reference implementation in a first step writes the command and in the second polls for the result. This works with longer chains, but in this case (with 1 or 2 chip chains) fails because the response is obviously returned already while the command is still written.
To circumvent the issue, one needs to search for the ACK already in the RX buffer of the command write step. In the upper case the correct processing would therefore be:
1) write 8 bytes for command 09
2) in the RX buffer search for the ACK (here at position 5)
3) determine how many more words need to be polled for the full ACK (here 2 more words) and do the poll
Unfortunately I have no single chip chain available to test and implement this, but it obviously is no rocket science and should be easily done.
I had same problem in 1-chip Test.
I just changed additional recv size. :-)
(at [register read] & [result read] )
Re: [CLOSED] Bitmine CoinCraft A1 28nm chip distribution / DIY support
I changed the price $6 per board.
Instead adding shipping fee ( EMS shipping )
My material cost of PCB is $5 and Stencil is $85
And selling it with $6 / $90 each.
Is this fair price?
Instead adding shipping fee ( EMS shipping )
My material cost of PCB is $5 and Stencil is $85
And selling it with $6 / $90 each.
Is this fair price?
Re: [CLOSED] Bitmine CoinCraft A1 28nm chip distribution / DIY support
http://thumb1.photo.ndrive.naver.com/12466325518?type=m3&setidc=2&filelink=yfTmbvStTJqzcRbH2MfRorLctZzh5CYXzrBXVQnCTp7GYMsDdY39QL7tPvicDbfACA==&authtoken=vmXj1+V/HENT4jAODAk29gI=
Anyone need reference board PCB?
I'm selling reference board PCB with stencil.
Here is my site.
http://theminingware.com/
I get if you're not including the actual A1's, but a DIY kit should include everything someone needs to assemble the device. That is, the PCB and stencil are great, but it should include all the SMD components as well. A "platinum" kit or something could also be made available which includes the A1. I'm okay with paying a bit more for all the work you put into producing the kit and sourcing the components, but I can't justify $300 for nothing but PCB's and a stencil. Even if that's a legit cost (I don't want to accuse you of unfair pricing), it's still too much for me to drop on a "kit" that doesn't include everything I'd need to do the job.
I see.
You want complete kit.
I only have 10 set of components for me. ( It was $1330 for 10 set. including shipping fee & customs VAT, I order from Digi-key, mouser, LTC)
It will be $357 per board. ( 1 PCB + set of components + 2 A1 chip )
You are too expensive, maybe it's time to think about some other PCB facility to make you boards and kits ?
Do you need any recomendation ?
OK, what's proper price per board do you think.
Re: [CLOSED] Bitmine CoinCraft A1 28nm chip distribution / DIY support
http://thumb1.photo.ndrive.naver.com/12466325518?type=m3&setidc=2&filelink=yfTmbvStTJqzcRbH2MfRorLctZzh5CYXzrBXVQnCTp7GYMsDdY39QL7tPvicDbfACA==&authtoken=vmXj1+V/HENT4jAODAk29gI=
Anyone need reference board PCB?
I'm selling reference board PCB with stencil.
Here is my site.
http://theminingware.com/
I get if you're not including the actual A1's, but a DIY kit should include everything someone needs to assemble the device. That is, the PCB and stencil are great, but it should include all the SMD components as well. A "platinum" kit or something could also be made available which includes the A1. I'm okay with paying a bit more for all the work you put into producing the kit and sourcing the components, but I can't justify $300 for nothing but PCB's and a stencil. Even if that's a legit cost (I don't want to accuse you of unfair pricing), it's still too much for me to drop on a "kit" that doesn't include everything I'd need to do the job.
I see.
You want complete kit.
I only have 10 set of components for me. ( It was $1330 for 10 set. including shipping fee & customs VAT, I order from Digi-key, mouser, LTC)
It will be $357 per board. ( 1 PCB + set of components + 2 A1 chip )
Re: [CLOSED] Bitmine CoinCraft A1 28nm chip distribution / DIY support
http://thumb1.photo.ndrive.naver.com/12466325518?type=m3&setidc=2&filelink=yfTmbvStTJqzcRbH2MfRorLctZzh5CYXzrBXVQnCTp7GYMsDdY39QL7tPvicDbfACA==&authtoken=vmXj1+V/HENT4jAODAk29gI=
Anyone need reference board PCB?
I'm selling reference board PCB with stencil.
Here is my site.
http://theminingware.com/
This board has a granted public licence on github for 2-chip PCB, so what are you selling then ?
You're selling produced boards or what ?
24 USD per board ? Assembled, without A1 chips or just board and nothing else ?
I checked license for selling.
I'm hust selling PCB and stencil for DIY guys.
24USD per board is chipper than sample PCB making in my country.
It you need many PCB, you need to order it to PCB factory.
But if you need just 5~10 PCB with Stencil, you can save time and money by my item.
You still didn't answer what are you selling :
a) NAKED PCB
b) ASSEMBLED PCB
c) ASSEMBLED PCB WITH A1 CHIPS
answer is A. :-)
you need SMD components.
I'm selling $24 per board. ( b and c are impossible in this price. )
Why would someone pay 24 USD for bare board from KOREA, when public design is published and transport costs more then it's production ?
If you could scale up assembly price to 24, that would mean something, this way it's a rip-off...
Oh, I don't known your PCB maker's sample PCB production fee.
But in my case, I ordered this PCB before, ( 8pc sample production 4 day deliver ) is was $200. ( $25 per board ).
If you need small quantity (5~10), It almost same price with sample production.
You don't need to wait production time.
If you want over 10 pc, you just make your order and wait over a week for production.
I just think someone need this PCB with stencil for small DIY. (It is not a mass production price.)
Re: [CLOSED] Bitmine CoinCraft A1 28nm chip distribution / DIY support
http://thumb1.photo.ndrive.naver.com/12466325518?type=m3&setidc=2&filelink=yfTmbvStTJqzcRbH2MfRorLctZzh5CYXzrBXVQnCTp7GYMsDdY39QL7tPvicDbfACA==&authtoken=vmXj1+V/HENT4jAODAk29gI=
Anyone need reference board PCB?
I'm selling reference board PCB with stencil.
Here is my site.
http://theminingware.com/
This board has a granted public licence on github for 2-chip PCB, so what are you selling then ?
You're selling produced boards or what ?
24 USD per board ? Assembled, without A1 chips or just board and nothing else ?
I checked license for selling.
I'm hust selling PCB and stencil for DIY guys.
24USD per board is chipper than sample PCB making in my country.
It you need many PCB, you need to order it to PCB factory.
But if you need just 5~10 PCB with Stencil, you can save time and money by my item.
You still didn't answer what are you selling :
a) NAKED PCB
b) ASSEMBLED PCB
c) ASSEMBLED PCB WITH A1 CHIPS
answer is A. :-)
you need SMD components.
I'm selling $24 per board. ( b and c are impossible in this price. )
Re: [CLOSED] Bitmine CoinCraft A1 28nm chip distribution / DIY support
http://thumb1.photo.ndrive.naver.com/12466325518?type=m3&setidc=2&filelink=yfTmbvStTJqzcRbH2MfRorLctZzh5CYXzrBXVQnCTp7GYMsDdY39QL7tPvicDbfACA==&authtoken=vmXj1+V/HENT4jAODAk29gI=
Anyone need reference board PCB?
I'm selling reference board PCB with stencil.
Here is my site.
http://theminingware.com/
This board has a granted public licence on github for 2-chip PCB, so what are you selling then ?
You're selling produced boards or what ?
24 USD per board ? Assembled, without A1 chips or just board and nothing else ?
I checked license for selling.
I'm hust selling PCB and stencil for DIY guys.
24USD per board is chipper than sample PCB making in my country.
It you need many PCB, you need to order it to PCB factory.
But if you need just 5~10 PCB with Stencil, you can save time and money by my item.
Anyone need Klondike K16 PCB?
I'm selling Klondike K16 PCB with Avalon Gen1 ASIC.
Here is my site.
http://theminingware.com/
I'm selling Klondike K16 PCB with Avalon Gen1 ASIC.
Here is my site.
http://theminingware.com/
Re: [CLOSED] Bitmine CoinCraft A1 28nm chip distribution / DIY support
http://thumb1.photo.ndrive.naver.com/12466325518?type=m3&setidc=2&filelink=yfTmbvStTJqzcRbH2MfRorLctZzh5CYXzrBXVQnCTp7GYMsDdY39QL7tPvicDbfACA==&authtoken=vmXj1+V/HENT4jAODAk29gI=
Anyone need reference board PCB?
I'm selling reference board PCB with stencil.
Here is my site.
http://theminingware.com/
Re: [CLOSED] Bitmine CoinCraft A1 28nm chip distribution / DIY support
Got my PCB made this week. Anyone else working on a reference build? Would love to compare notes 
http://i.imgur.com/J34PiOI.jpg
http://i.imgur.com/J34PiOI.jpg
I'm in 1 chip testing now.
It works with my Raspberry pi.
https://doc-10-04-docs.googleusercontent.com/docs/securesc/l4djka008adkbo5eb3peri1thtdq598p/ost2lihsqe4b0546nst514da23th9s8l/1394064000000/15398276951700677173/15398276951700677173/0B0zzUhzSOpuLSm45YVpNUHNOM0JYN2Z0UnNuZm5RcTRMd3BV?h=16653014193614665626&e=download
nice job!
could you show assembled board? both sides? would be interesting to see your cooling solution.
I taked picture before sending command to A1.
(It can't be running without heat-sink.)
I attached 55mm fan(with heat-sink assembly) to the bottom of PCB and attached to 50mm Heat-sink top side of asic( using 3M cooling pad. )
I consider Peltier cooling for this summer.
Re: [CLOSED] Bitmine CoinCraft A1 28nm chip distribution / DIY support
Got my PCB made this week. Anyone else working on a reference build? Would love to compare notes
http://i.imgur.com/J34PiOI.jpg
http://i.imgur.com/J34PiOI.jpg
I'm in 1 chip testing now.
It works with my Raspberry pi.
https://doc-10-04-docs.googleusercontent.com/docs/securesc/l4djka008adkbo5eb3peri1thtdq598p/ost2lihsqe4b0546nst514da23th9s8l/1394064000000/15398276951700677173/15398276951700677173/0B0zzUhzSOpuLSm45YVpNUHNOM0JYN2Z0UnNuZm5RcTRMd3BV?h=16653014193614665626&e=download
Re: CoinCraft A1 chips Group Buy - Raising Interest - WWW.CRYPTOWARE.CO.UK
Hi
CRYPTOWARE will be hosting a group buy for Coincraft A1 chips. For those who do not know me, my name is Nathan and i am based in London, United Kingdom. I am a co- owner of a new start up venture called CRYPTOWARE. Please visit www.cryptoware.co.uk for more details. We are a registered start up company in the United Kingdom with a dedicated team behind it. I have made plenty of large transactions with many people on this forum. Sometimes without escrow. If needed i can provide identification. I am starting my fourth group buy . If you want to buy using paypal, please use the website . you must have a verified paypal postal address. Previous Group buy --> https://bitcointalk.org/index.php?topic=421092.0
We will be purchasing a large number of chips depending on the interest on this forum,
Technical specifications* of the CoinCraft A1 ASIC:
Developed on 28nm HPP process from Global Foundries
Custom IC package with power bars for low voltage, high current feeding
Configurable in daisy chain mode for distributed work with up to 253 ASICs.
Standard SPI interface
Hashing power of 25 GH/s in nominal and up to 40 GH/s in Turbo mode
Power usage of 0.35 W/GH in low power, 0.6 W/GH in nominal and 1 W/GH in Turbo mode
Supply voltage of 0.65V in low power, 0.765 V in nominal and 0.85 V in Turbo mode
Mass production available starting from the second week of December 2013
A1 coin craft chips will be priced at $87.50 per chip + 8% fee
ORDERS QTY Process (Paid/Confirmed address)
-------- --- -------------------------
Bitwhizz 250
end18 40
-----------------------------------------------
290
We won;t accept orders yet,
Once the 500 chip minimum is raised in orders, we will proceed with ordering the chips
The payment is priced in dollars,
Please get in touch with either myself or user Tirapon and we will agree the price in bitcoin at the current bitstamp exchange rate. This allows us to get the funds cashed out in dollars, to minimise exposure to the exchange rate.
Regards
Bitwhizz
CRYPTOWARE will be hosting a group buy for Coincraft A1 chips. For those who do not know me, my name is Nathan and i am based in London, United Kingdom. I am a co- owner of a new start up venture called CRYPTOWARE. Please visit www.cryptoware.co.uk for more details. We are a registered start up company in the United Kingdom with a dedicated team behind it. I have made plenty of large transactions with many people on this forum. Sometimes without escrow. If needed i can provide identification. I am starting my fourth group buy . If you want to buy using paypal, please use the website . you must have a verified paypal postal address. Previous Group buy --> https://bitcointalk.org/index.php?topic=421092.0
We will be purchasing a large number of chips depending on the interest on this forum,
Technical specifications* of the CoinCraft A1 ASIC:
Developed on 28nm HPP process from Global Foundries
Custom IC package with power bars for low voltage, high current feeding
Configurable in daisy chain mode for distributed work with up to 253 ASICs.
Standard SPI interface
Hashing power of 25 GH/s in nominal and up to 40 GH/s in Turbo mode
Power usage of 0.35 W/GH in low power, 0.6 W/GH in nominal and 1 W/GH in Turbo mode
Supply voltage of 0.65V in low power, 0.765 V in nominal and 0.85 V in Turbo mode
Mass production available starting from the second week of December 2013
A1 coin craft chips will be priced at $87.50 per chip + 8% fee
ORDERS QTY Process (Paid/Confirmed address)
-------- --- -------------------------
Bitwhizz 250
end18 40
-----------------------------------------------
290
We won;t accept orders yet,
Once the 500 chip minimum is raised in orders, we will proceed with ordering the chips
The payment is priced in dollars,
Please get in touch with either myself or user Tirapon and we will agree the price in bitcoin at the current bitstamp exchange rate. This allows us to get the funds cashed out in dollars, to minimise exposure to the exchange rate.
Regards
Bitwhizz
Do you have PCB+BOM ？spport ?
Do you need Bitmine's 2 chip reference board?
I have 200 pc of Bitmine reference board and 20 set of components except A1 chip.
