Send data from USB via FX3 to FPGA

Hello,

I want to send some data from USB (Isochronous OUT Endpoint) via FX3 to FPGA.

First I tried with manual DMA Channel, but it didn't work, although the commit of the buffer reported success. But it only commits once, though filling the buffer continuously. So I changed to Multi DMA Channels (many to one). Now I get a "ERROR_INVALID_SEQUENCE" when the buffer is committing.

Have anyone experience with sending data from USB to FX3? Are there some advice to pay attention to? Exist an example, which don't discard or immediately send back the data?

Would be great to get some suggestions.

Thanks,

Janina