I do not need it to pass data on different UARTS, just to be able to receive it in a buffer and distinguish from which endpoint it arrived. The goal is to create multiple wireless RS232 ports with full hardware flow support, so the data would be pass...
I have implemented USB CDC device on this platform using CubeMx code generator. Used it to drive stepper motors.I tried multiplying USB descriptor, but it still just showed up as only one CDC device.