Resolved! Next error in stm32f4xx_ll_usb.c?
In function USB_EP0_OutStart is: if (dma == 1U) { USBx_OUTEP(0U)->DOEPDMA = (uint32_t)psetup; /* EP enable */ USBx_OUTEP(0U)->DOEPCTL |= USB_OTG_DOEPCTL_EPENA | USB_OTG_DOEPCTL_USBAEP; }In my opinion enabling endpoint should be out of DMA condi...