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== Firmware ==
== 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.'''
=== [http://downloads.canaan-creative.com/hardware/A3255/prototype/ 2013-12-07] ===
* 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
nonce_send_to_pool = nonce_receive_from_miner-0xc0
* Include all hardware design files under this tar ball
=== TIMEOUT ===
=== 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。
Line 45: Line 55:
  ==> 32:10:1000:12 works fine
  ==> 32:10:1000:12 works fine
  ==> '''32:10:1500:8  not working'''
  ==> '''32:10:1500:8  not working'''
=== [http://downloads.canaan-creative.com/hardware/A3255/prototype/FIRMWARE/2013-11-08/ 2013-11-08] ===
* 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]
* Both [http://downloads.canaan-creative.com/hardware/A3255/prototype/FIRMWARE/2013-11-08/openwrt 703n firmware] and  [http://downloads.canaan-creative.com/hardware/A3255/prototype/FIRMWARE/2013-11-08/FPGA/ FPGA controller firmware] have uploaded
* Change `core_count to 64 to compatible with ealier cgminer
* Software should follow equation below when handle A3255 based miner
nonce_send_to_pool = nonce_receive_from_miner-0xc0
=== [http://downloads.canaan-creative.com/hardware/A3255/prototype/FIRMWARE/2013-11-05/ 2013-11-05] ===
* Support 8, 16 miners, '''8 and 16 have tested'''
* '''ISSUE''': 24, 32 miners not working with 1.5Ghs, works fine with 1Ghs
* Upload the [http://downloads.canaan-creative.com/hardware/A3255/prototype/FIRMWARE/2013-11-05/openwrt 703n firmware]
* Upload the [http://downloads.canaan-creative.com/hardware/A3255/prototype/FIRMWARE/2013-11-05/FPGA/ FPGA controller firmware]
* Support 6 ~ 10  chip in each miner, '''6 and 10 have tested'''
=== [http://downloads.canaan-creative.com/hardware/A3255/prototype/FIRMWARE/2013-10-07/ 2013-10-07] ===
* Only support 16 miners, each miner have 6 A3255 ASICs


== Work without LDO RT9187 ==
== Work without LDO RT9187 ==

Revision as of 09:59, 29 December 2013

Avalon2 is the second machine of Avalon project. using the 55nm ASIC chips

A3255

Chip testing

Prototype

Documents

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.

2013-12-07

  • 8, 16 miners works just fine
  • ISSUE: 32 miners with 10 chips still not working because TIMEOUT issue
  • Change `core_count to 64 to compatible with ealier cgminer
  • Software should follow equation below when handle A3255 based miner
nonce_send_to_pool = nonce_receive_from_miner-0xc0
  • 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
  • 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.

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

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

Links

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