Avalon2
Avalon2 is the second machine of Avalon project. using the 55nm ASIC chips
Prototype
FPGA controller
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
2013-11-05
- Update for A3255 controller
- Support 8, 16, 24, 32 miners, 8 and 16 have tested
- Support 6 ~ 10 chip in each miner, 6 and 10 have tested.
2013-10-07
- Only support 16 miners, each miner have 6 A3255
- Cgminer: https://github.com/BitSyncom/cgminer/tree/avalon-55nm, https://github.com/BitSyncom/cgminer/commit/9d9450628923337646f4c50c1efd42652c97c7f9