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CGMiner 3.7.2 with GridSeed GC3355 support

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cgminer-gc3355

CGMiner 3.72 with GridSeed GC3355 support

./configure --enable-scrypt --enable-gridseed

GC3355-specific options can be specified via --gridseed-options or "gridseed-options" in the configuration file as a comma-separated list of sub-options:

  • baud - miner baud rate (default 115200)
  • freq - a choice of 250/400/450/500/550/600/650/700/750/800/850/900/950/1000
  • pll_r, pll_f, pll_od - fine-grained frequency tuning; see below
  • chips - number of chips per device (default 5)
  • per_chip_stats - print per-chip nonce generations and hardware failures

If pll_r/pll_f/pll_od are specified, freq is ignored, and calculated as follows:

  • Fin = 25
  • Fref = int(Fin / (pll_r + 1))
  • Fvco = int(Fref * (pll_f + 1))
  • Fout = int(Fvco / (1 << pll_od))
  • freq = Fout

This version of cgminer turns off all BTC cores so that power usage is low. On a 5-chip USB miner, power usage is around 10 W. GPUs are also supported.

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CGMiner 3.7.2 with GridSeed GC3355 support

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