Hello, I have the following device under test (DUT), based on the CDC Standalone example in STM32Cube_FW_F4_V1.27.0. STM32F469I MCUUSB3300 ULPI PHYHCLK and SYSCLK set to 180MHzTXFIFO size is set to 2048 bytes, RXFIFO size is set to 1024 bytesThe DUT ...