Even one chip would be super useful. More would be cool. 8 would be awesome as that's a full bank. And 16 would be super awesome as that's a full board. So keep me in mind when samples start popping up. You'll get them back eventually, if you want, unless I blow one up or do something retarded.
I have that in mind from day 1! I will try to find something for you in advance before samples come out:) When arer you going to need them Yesterday? No jocks when do you think you will get to the point that lack of chips will stop the development? Calm down dude.  I am calm but if bkkcoins do not get some chips he can not move forward. You know that timing matters mostly.  I will fill pretty good if i can order PCB's somewhere in china and have them in my hands waiting for chips not the opposite. In order this to happen chips are needed in a first place Four layer PCB is not a joke and in small quantities it needs time. PCB fab should be carefully chosen+ logistics+customs and so on so on If all of the above shit is sorted out first it will be great at least for me |
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10X I have just pm'ed Mrb Please try to find the one with blown caps. This one looks damaged and unusable and is removed from the unit already. 10 Chips doing nothing on a blown PCB just perfect  Our chances are bigger there i guess |
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Mrb bought that broken unit. However, i think bkk have enough time.
Loshia, you are from eu?
Yes i am from EU Can you post full nick of Mrb or link to his profile 10X |
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I have that in mind from day 1!
I will try to find something for you in advance before samples come out:)
When arer you going to need them Yesterday?
No jocks when do you think you will get to the point that lack of chips will stop the development?
I won't be ready to really use them until I have a PIC programmed and signalling data to the ASIC pins. I doubt that will be within a week. It should be before two weeks, end of May. If I have boards first I'll build and test one without the ASIC. If I don't have boards first I'll put an ASIC on a proto-board already sitting in Bkk, and connect the PIC to test my code. It should mine even if at low clock to prevent overheating. (Thank you Dangerous Prototypes for making easy, cheap proto-boards). That way when a board arrives I'll know the code works and it's just the board I'm debugging. Or the other way round. If I get into June and have a programmed PIC and working power supply on board but no chips, then I'll be stalled. OK. PM me a week before you get stuck if chips are not available i will took them from my unit and i will send them to you Or i will send some if there are available as samples from my zefir order Guy's Please help us and try to find a post (i can not find it) of the guy with blown caps - he has a module with 10 chips out of his unit. it will just do the job. PM him and ask if he will sell it so we can collect BTC and organize it for BKK 10X |
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Even one chip would be super useful. More would be cool. 8 would be awesome as that's a full bank. And 16 would be super awesome as that's a full board. So keep me in mind when samples start popping up. You'll get them back eventually, if you want, unless I blow one up or do something retarded.
I have that in mind from day 1! I will try to find something for you in advance before samples come out:) When arer you going to need them Yesterday? No jocks when do you think you will get to the point that lack of chips will stop the development? |
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Great news then... so... what are the next steps BKKcoins?
Can we get a rough development run down from here on out?
Calm down dude I guess next steps are 1. finish PCB 2. Order prototypes 3. Code PIC FW meanwhile 4. Get chips from somewhere 5. Debug 6. fix issues if any 7. repeat 2-6 and so on... do not pressure on BKK he is working like crazy already safe him some time answering pls What we can do is to collect some BTC and buy broken AVALON hash unit or two and send to BKK this will speedup the process. I am in with BTC as long as someone finds it for sale ate reasonable price. He will need just 20-30 chips i guess. There were threads with damaged/broken modules already PS: https://bitcointalk.org/index.php?topic=189334.0 PM'd already asking if he can sale us something https://bitcointalk.org/index.php?topic=178168.20 - Another thread There was a post here with blown caps but i can not find it. That is what we need to get and find out the guy and ask |
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So, I've read thru the comm. specs and we're golden. All looks like it will work ok, and is pretty darn close to expectations.
If USB protocol has a place to stuff in a serial# when attaching then I can have the PIC supply that info so you can do udev rules or whatever. I was planning to put a serial# in the flash code anyway, only so it'll have some unique ID. It does just appear as a serial tty device.
Sounds great! We just need to have some udev info different for each PIC so we can distinguish between them. It is not necessary to be the serial number. Any way you have more important stuff to deal with. We will discuss it when time comes Thank you BkkCoins!!!! |
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I think probably each USB chain will appear as one unit. Not sure yet as I haven't got into the cgminer code, but if you have a dozen or two boards you don't really want a display with 12-24 lines of 300MHz each - or do you? I wouldn't. And what about people with 60 boards on one chain...
That is true for sure. let us say a have 10 ttyUSb or 10 boards not chained. if there is usb serial i can write udev rules and name them so i will know for sure that ttyKLO1 matches particular board. When there is issue i do not have to disconnect and reconnect the boards one by one to find out which board is causing it. Otherwise on each reboot linux will auto name the boards and their tty name will be different. That is what i am talking about The similar question and response for Icarus boards https://bitcointalk.org/index.php?topic=79835.msg1164605#msg1164605When USB has serial or some unique attribute it will be golden for dudes having more than one board - Multiple usb cables going to a hub Otherwise we will have many ttyUSb not knowing which board corresponds to what PS: i am not mentioning the fact that there might be other usb devices in the system and multiple instances of cgminer to be executd one for Icarus one for Klondike and so on. Having the option to assign unique name to each ttyUSb will save us a lot of trouble. the cgminer will be feed with -S/dev/TTY accordingly |
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Just a question BKKcoins... will each board have a serial / id number?
+1 for USb serial so we can distinguish multiple boards in cgminer |
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Bump
Any updates here mails received? I do still have nothing
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Done a little bit study about the cooling, after adding two nexus real silent fan at exhaust, this is the profile I get from a script which recorded the temp each half an hour for several days  After ambient temperature reached 20C, both fan3 and temp3 start to accelerate upwards, means cooling effect start to drop. I have not tested the temp1 at higher than 26C, but I suppose that after the fan reaches 3000+ RPM and temp3 being higher than 47C, the noise and the module temp will become unacceptable I'm considering two options: Use an air conditioner to keep the intake below 20C, or underclock the avalon when temp3 is higher than 45 degree Another option is to take all the modules out and mount the cooling fan directly on the heatsink, like someone's cooling on BlockErupter blades, I believe this will dramatically reduce the temp3 by at least 5 degree, but then the other side of the module also need to be actively cooled, it will need at least 3 fans for each module and 9 fans for all 3 modules...  The existing fans in avalon are industry grade server fans, works quite well, but the datacable and powercable all blocked part of the air that flow through the heatsink Dude, I was worried about cooling also. My avalon clocked at 300 making 71 GH steady was ok at about 30C ambient for three days in a row. However that was for three days only. I have air conditioner now and ambient is at 23C. I do really think that at 35C it will be OK as ngzhang stated but i am not going to try it anyway |
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do the BOM/gerber files exist? could I take a look please?
Dude all that exists is here: https://github.com/bkkcoins/klondikepls check to see if the file you are looking for is inside |
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Good news from the field. I just got an email from Avalon with a tracking number for batch #2. Wish me luck.
As always, thank you team Avalon. Wish I could meet you at the conference this weekend, but I didn't get the airplane tickets in time.
Super! |
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Please forgive my ignorance but have we got the final schematics to work with? Or just the PCB board gerber file?
As long as i know we still do not have them. Bkk will build demo pcb first solder the chips test it with FW mininig and tweak it if something went wrong. After that we will have them. Bkk can comment it also but that should be right way to go as long as he is not making just clone of Avalon PCB but designing it from scratch. Providing final schematics in the moment will be like "shooting in the dark" |
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Looks like Avalon put up a couple more docs. Chip footprint drawing and heat sink dwg file which I can't read. Apparently there isn't an open source dwg viewer. No surprise on the footprint - pretty much exactly what I had already. Getting close to done on the PCB design. I did a lot of data tracks today and then realized I'd placed most of the vias in the keep out area around each chip for heat sink contact. Fail. So had to move and redo a lot of today's work. Placed first parts order for prototype, and ordered a RasPi to test as mine master. For miner i am using my trusty tp-link WR-842Nd. Works great. But probably it will be a better idea to us PC (Linux) first to avoid any USB issues that my come from miner host whatever it is. |
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And no single mail about trade-ins?
Anyone got trad-in mail yet?
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Wow! Just received letter from avalon store, that my orders can't be delivered, cos no phone number. But my Order Page is empty  Suppose I need write another ticket to support... It means that they are working on batch2 delivery already When do you got it? 10X |
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