HiI'm using OTG HS on the STM32F746 mcu, in device mode, as a CDC VCP. It works when "Internal IP DMA" is disabled. If I enable DMA, the USB device enumerates but CDC_Transmit_HS() no longer works.Please let me know the solution if you have solved al...

HelloI am writing this reply as I saw the same problem with STM32F746.I also tried similar things with you, but the USB doesn't work properly.If you solved this issue already, please let me know the solution.Best regards,Tian Zhang.