LL driver parameters settings as follows., hpcd.Instance = USB_OTG_FS; hpcd.Init.dev_endpoints = 4; //11 hpcd.Init.use_dedicated_ep1 = 0; hpcd.Init.ep0_mps = 0x40; hpcd.Init.dma_enable = 0; hpcd.Init.low_power_enable = 1; hpcd.Init.phy_itface = PCD_P...