USB OTG High-Speed data corruption in STM32F746-Disco Board

[A_R]

Hi

I'm very new to STM32. I create a project with STM32CubeMX for the STM32F746-Disco board and I need to use USB OTG HS for sending data to PC through VCP. The data size which I need to send to PC is 24576 Bytes. The USB connected properly but after some second the send data became corrupted! I mean that the data did not send true, Although the USB connection still is established.

Is there a way to solve this problem?

[chaaalyy]

Many possibilities... Most likely it´s a fifo speed problem. Maybe try dma transfer