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| Line 7: |
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| * Firmwares: http://downloads.canaan-creative.com/hardware/A3255/testing/ | | * Firmwares: http://downloads.canaan-creative.com/hardware/A3255/testing/ |
|
| |
|
| = Prototype = | | = [Avalon2 prototype Prototype] = |
| [[File:Avalon2 55nm prototype.jpeg | 320px]] | | [[File:Avalon2 55nm prototype.jpeg | 320px]] |
|
| |
| == Documents ==
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| * [http://downloads.canaan-creative.com/hardware/A3255/prototype/ Reference design]
| |
| * [http://downloads.canaan-creative.com/hardware/A3256/avalon/Manual/110G%20Hash%20Avalon%20Assemble%20Manual.pdf Assemble Manual]
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|
| |
| == Firmware ==
| |
| '''For latest 703N firmware please goto here: http://downloads.canaan-creative.com/software/avalon/latest/. from 20131229. the cgminer will support both Avalon 110nm and Avalon A3255 prototype machine.'''
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|
| |
| === [http://downloads.canaan-creative.com/hardware/A3255/prototype/ 2013-12-07] ===
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| * 8, 16 miners works just fine
| |
| * '''ISSUE''': 32 miners with 10 chips still not working because [https://en.bitcoin.it/wiki/Avalon2#TIMEOUT TIMEOUT issue]
| |
| * Change `core_count to 64 to compatible with ealier cgminer
| |
| * Software should follow equation below when handle A3255 based miner
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| nonce_send_to_pool = nonce_receive_from_miner-0xc0
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| * Include all hardware design files under this tar ball
| |
|
| |
| === TIMEOUT ===
| |
| * TIMEOUT的有效值范围为[0,255]，FPGA controller根据TIMEOUT的配置来控制申请/计算任务的时间。当TIMEOUT值配置为1时，FPGA controller会每隔0.033s申请一次任务，也表示芯片已计算完当前HASH区间。
| |
| * TIMEOUT配置与申请/计算任务时间间隔的公式为
| |
| TIME_OF_MINER_FINISH_HASH_RANGE = TIMEOUT * 0.033s
| |
| TIMEOUT = TIME_OF_MINER_FINISH_HASH_RANGE / 0.033s
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|
| |
| * 若FPGA controller连接的一个小模块上的计算能力为10GHs（10个芯片，每芯片1G），则FPGA controller申请任务的时间间隔为
| |
| 2^32 / 10*1000*1000*1000 = 0.4s
| |
| 0.4s/0.033s = 12 # TIMEOUT应配置为12
| |
|
| |
| * 如果使用prototype中的FPGA固件，你们的硬件设计一定要满足下面的式子：
| |
| 发送全部任务的时间 一定要小于 FPGA申请任务的时间(也就是ASIC算完自己区间的时间)
| |
| ((11+2+chip_num)*4*10/115200)*miner_num*1000 + DELAY_IN_MS*miner_num < (128591 / chip_num / frequency) * 33ms
| |
|
| |
| 解释一下：
| |
| 11+2+chip_num)*4 ==> CHIP_NUM的任务长度，单位Byte
| |
| ((11+2+chip_num)*4*10/115200)*miner_num*1000 ==> 发送MINER_NUM个这样的任务所需要的时间，单位是ms
| |
| DELAY_IN_MS*miner_num ==> 总的Delay时间，DELAY_IN_MS见cgminer代码：driver-avalon.c:1132
| |
| (128591 / chip_num / frequency) * 33ms ==> TIMEOUT值，详见Wiki文档
| |
|
| |
| 几个测试的例子，仅供参考：
| |
| MINER_NUM:CHIP_NUM:FREQUENCY:TIMEOUT
| |
| ==> 16:10:1000:12 works fine
| |
| ==> 16:10:1500:8 works fine
| |
| ==> 24:10:1000:12 works fine
| |
| ==> 24:10:1500:8 works fine
| |
| ==> 32:6:1000:21 works fine
| |
| ==> 32:6:1500:12 works fine
| |
| ==> 32:10:1000:12 works fine
| |
| ==> '''32:10:1500:8 not working'''
| |
|
| |
| == Work without LDO RT9187 ==
| |
| * Connect the C20 right pad to C15 or C14 left pad
| |
| * Please keep the Vcore to between 0.95v and 1.05v, the origin design was 1v.
| |
| * If the crystal not working, try to reduce the R28(by default it's 1K), if reduce the R28 didn't make crystal back to working. try repace the crystal with a better brand.
| |
|
| |
| [[File:Avalon2 work without LDO RT9187 2.jpeg | 320px]] [[File:Avalon2 work without LDO RT9187 1.jpeg | 320px]]
| |
|
| |
| = 55nm open design =
| |
| * form
| |
| https://github.com/formtapez/avalon
| |
| https://bitcointalk.org/index.php?topic=323175.0
| |
| Supported by official BFGMiner 3.8+
| |
| * flyonwall
| |
| https://bitcointalk.org/index.php?topic=323175.msg3759895#msg3759895
| |
| * Technobit Team
| |
| https://bitcointalk.org/index.php?topic=323727.0
| |
| here is the design, BOM：
| |
| http://ge.tt/2B4qW051/v/0?c
| |
| Here is CGminer patch and dd-wrt cgminer build
| |
| http://technobit.eu/index.php?controller=attachment&id_attachment=30
| |
| Windows drivers
| |
| http://technobit.eu/index.php?controller=attachment&id_attachment=9
| |
| Windows HEXminer software
| |
| http://technobit.eu/index.php?controller=attachment&id_attachment=29
| |
| Specs
| |
| 16 chip board
| |
| Hash rate - about 24 Gh/s overclocked
| |
| 16 bit PIC controller
| |
| 2 line power suply
| |
| Voltage controled by command in the software/firmware
| |
| USB connector
| |
| molex 4 pin power connector
| |
| Review: https://bitcointalk.org/index.php?topic=355323.0
| |
| * George Hahn
| |
| https://github.com/GeorgeHahn/Avalon
| |
| * Dan
| |
| http://arselin.com/drillbit/2013/12/01/avalon-gen2-miners-by-drillbit-systems/
| |
| http://www.drillbitsystem.com/avalon/
| |
| * Carlos
| |
| https://github.com/ctapang/DesignEntry/
| |
| * Zhaodong
| |
| https://github.com/BitDragonfly/A3256-mono
| |
| * Ardulon 2
| |
| https://code.google.com/p/ardulon-miner/source/browse/#svn%2Ftrunk
| |
|
| |
|
| = Chip sales agent = | | = Chip sales agent = |
Avalon2 is the second machine of Avalon project. using the 55nm ASIC chips
A3255
Chip testing
[Avalon2 prototype Prototype]
Chip sales agent
China mainland（中国大陆地区代理）
深圳阿瓦龙电子有限公司
淘宝：http://avalon8.taobao.com/
联系人：陈先生
电话：0755-36820585
手机：13528785811
QQ：1816404459
邮箱：1816404459@qq.com
Worldwide
ELEN Technology Limited.,
Contact: Eric Chen
Email: eric_chen@elen-tech.com
Phone (852)31658617
FAX:+(852)30071717
Address: Rm.,604,Treasure Center, 42 Hung To Road, Kwun Tong, Kln. HongKong
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