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'no ST-LINK detected' error when changing USB port of my PC while using STM32F401RE board

Question asked by Chan on Nov 30, 2015
Latest reply on Dec 1, 2015 by Chan
when tyring to download and run, I'm seeing 'No ST-LINK detected' error after I connect the STM32F401RE board to a USB port of my PC which is a different USB port from the one I have been using. When I switch back to old USB port  it just works fine. Somehow the uVision seems to be 'remembering' the USB port of the PC it is using. Does anybody know how to avoid this problem? (I want to use another USB port for some reason.)