I wonder if someone could help me with proper shutdown and restart of a bulk HOST IN USB endpoint. I am using an STM32469I, with HS USB via ULPI. I can start USB streaming to the host, but at termination I get many spurious Tx interrupts on the endpoint.
I've tried using USBD_LL_OpenEP and USBD_LL_CloseEP, but after the close the endpoint does not work properly.
I've tried using USBD_LL_OpenEP, and then to stop just disabling the endpoint interrupt in DAINTMSK. This works in some cases, but seems to lead to race conditions and so is unreliable. There must be a better way.