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@@ -8,13 +8,19 @@ ModMinerQuad (MMQ)
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The mining bitstream does not survive a power cycle, so cgminer will upload
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it, if it needs to, before it starts mining
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+-
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+
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You must make sure you have an approriate firmware in your MMQ
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Read here for official details of changing the firmware:
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http://wiki.btcfpga.com/index.php?title=Firmware
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The basics of changing the firmware are:
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+ You need two short pieces of conductive wire if your MMQ doesn't have
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+ buttons on the "RESET" and "ISP" pads on the backplane board
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+ Cutting a small (metal) paper-clip in half works well for this
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+
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Join the 2 left pads of the "RESET" pad with wire and the led will dim
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- Without dicsonnecting the "RESET", join the 2 left pads of the "ISP" pad
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+ Without disconnecting the "RESET", join the 2 left pads of the "ISP" pad
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with a wire and it will stay dim
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Release "RESET" then release "ISP" and is should still be dim
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Unplug the USB and when you plug it back in it will show up as a mass
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@@ -41,6 +47,30 @@ The current latest different firmware are:
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The code is currently tested on the modminer091012.bin firmware.
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This comment will be updated when others have been tested
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+-
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+
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+On many linux distributions there is an app called modem-manager that
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+may cause problems when it is enabled, due to opening the MMQ device
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+and writing to it
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+
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+The problem will typically present itself by the flashing led on the
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+backplane going out (no longer flashing) and it takes a power cycle to
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+re-enable the MMQ firmware - which then can lead to the problem happening
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+again
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+
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+You can either disable/uninstall modem-manager if you don't need it or:
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+a (hack) solution to this is to blacklist the MMQ USB device in
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+/lib/udev/rules.d/77-mm-usb-device-blacklist.rules
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+
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+Adding 2 lines like this (just above APC) should help
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+# MMQ
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+ATTRS{idVendor}=="ifc9", ATTRS{idProduct}=="0003", ENV{ID_MM_DEVICE_IGNORE}="1"
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+
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+The change will be lost and need to be re-done, next time you update the
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+modem-manager software
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+
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+TODO: check that all MMQ's have the same product ID
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+
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Bitforce (BFL)
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--------------
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Kano