AnsweredAssumed Answered

STM32F103RB - USB Keyboard

Question asked by marek.marek on Nov 5, 2014
Latest reply on Nov 7, 2014 by Chinzei.Tsuneo
Hi All
I'm working on a project which needs to send few standard USB Keybord commands to a WIN7 Desktop. It is very simple project I'm using F103 and the ST USB library and everything seems to be working fine. When I plug the USB cable into the PC, the device gets enumerated correctly and everything works perfectly. The problem starts if I switch off and on the PC with the USB cable still plugged in - the device is not enumerated at all - I have to unplug the device and plug it back in for it to start working again.

I was hoping that someone had come accross something simillar and could shed some light on this mystery.

Thanks in advance.