AnsweredAssumed Answered

STM32F4 USB device library - won't recoginize device on reset

Question asked by norton.mark on Nov 21, 2012
Latest reply on Mar 3, 2013 by harasak
Hi All,
I am having a problem the STM32F4 USB library labeled version 2.1.0.  If I start the device and then plug in the USB, all is good.  If I have the USB connected and start the device, my PC will not recognize the device.  I created a composite MSC & CDC device.  However, I tried just the supplied MSC and that will also not work.  I am not using the VBus to signal the stack (Port A.9).  Any ideas?