System Workbench for STM32

Hello,

no one can help me?

I recently that question how I can fasten the usb data transfer between the stm32F4 discovery board and the PC. The problem was I only had a max data rate of about 60 kByte/s. I figure out that this is the max data rate in usb cdc class interrupt transfer mode. Every 1ms the stm transmits 64 Byte.

But I want to transmit data more often. Therefore I need the bulk transfer mode.

Is anybody out there who has already implemented the USB CDC connection in bulk mode? The example in CubeMX is only in interrupt mode. And i have no real starting point to change the interrupt mode into bulk mode, so that I can reach data rates of 500KBytes/s and more.

Thanks in advance,

Florian