Avalon2

From Bitcoin Wiki
Revision as of 18:18, 10 November 2013 by Xiangfu (talk | contribs) (→‎Firmware)
Jump to navigation Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

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

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