Difference between revisions of "Avalon2"

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(Firmware)
(Firmware)
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= Prototype =
 
= Prototype =
 
[[File:Avalon2 55nm prototype.jpeg | 320px]]
 
[[File:Avalon2 55nm prototype.jpeg | 320px]]
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 +
== Datasheet ==
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* http://downloads.canaan-creative.com/hardware/A3255/datasheet/
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== Reference design ==
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* http://downloads.canaan-creative.com/hardware/A3255/prototype/
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== Chip testing ==
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* Firmwares: http://downloads.canaan-creative.com/hardware/A3255/testing/
  
 
== Firmware ==
 
== Firmware ==

Revision as of 18:21, 10 November 2013

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

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

World wide

ELEN Technology Limited.,
Contact: Eric Chen
Address: Rm.,604,Treasure Center, 42 Hung To Road, Kwun Tong,  Kln. HongKong
FAX:+(852)30071717

Prototype

Avalon2 55nm prototype.jpeg

Datasheet

Reference design

Chip testing

Firmware

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

2013-11-08

  • 8, 16 miners works just fine
  • ISSUE: 24, 32 miners still not working with 1.5Ghs, works fine with 1Ghs
  • Both 703n firmware and 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

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 703n firmware
  • Upload the FPGA controller firmware
  • Support 6 ~ 10 chip in each miner, 6 and 10 have tested

2013-10-07

  • Only support 16 miners, each miner have 6 A3255 ASICs

Links