good day community, i am working on a project which requires me to communicate with several blue pills(f1s) as USB device CDC(virtual com ports) using a USB hub while my f4 acting as USB host, all in USB Full Speed.
I have successfully tried communication of one F4 and one F1 but after i connected a hub to F4 and connect F1 to one of the terminal of hub the data could not be sent from F4.
