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@@ -1,6 +1,7 @@
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This README contains extended details about FPGA mining with cgminer
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+
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Bitforce
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--bfl-range Use nonce range on bitforce devices if supported
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@@ -17,11 +18,23 @@ C source is included for a bitforce firmware flash utility on Linux only:
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bitforce-firmware-flash.c
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Using this, you can change the bitstream firmware on bitforce singles.
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It is untested with other devices. Use at your own risk!
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+
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To compile:
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make bitforce-firmware-flash
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-To run, specify the BFL port and the flash file e.g.:
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- ./bitforce-firmware-flash /dev/ttyUSB0 alphaminer_832.bfl
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+To flash your BFL, specify the BFL port and the flash file e.g.:
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+ sudo ./bitforce-firmware-flash /dev/ttyUSB0 alphaminer_832.bfl
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It takes a bit under 3 minutes to flash a BFL and shows a progress % counter
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+Once it completes, you may also need to wait about 15 seconds,
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+then power the BFL off and on again
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+
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+If you get an error at the end of the BFL flash process stating:
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+ "Error reading response from ZBX"
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+it may have worked successfully anyway.
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+Test mining on it to be sure if it worked or not.
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+
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+You need to give cgminer about 10 minutes mining with the BFL to be sure of
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+the MH/s value reported with the changed firmware - and the MH/s reported
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+will be less than the firmware speed since you lose work on every block change.
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Icarus
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Kano