You cannot create 2 DMA channels using same producer ports. for this kind of implementation you can create a GPIF to USB Manual channel., and the other CPU to S-port (the CPU is responsible to copy the same data to this channel).
The other way is to create a CY_U3P_DMA_TYPE_MULTICAST DMA channel. We have provided one example in USBBulkLoopMulticast firmware in the FX3 SDK. Please check. Let us know for further clarification.
Thank you for your quick response.
Yes, I already saw the CY_U3P_DMA_TYPE_MULTICAST which involve to use a manual DMA channel. That is why I was asking if there was another way to work with the same producer and 2 consumers with automatic DMA channel.
Would it take lots of CPU resources to do this copy from CPU to S-Port?
You cannot associate 2 channels with one port, we cannot suggest any other way to do the same. Yes, it will consume some of CPU resource, we do not have recorded/documented this data, but it mostly depends on your application. You can check what you get in your case