How to start DMA from FPGA-memory to PCIe Domain, once the FPGA has the data ready? How to set the FPGA as the DMA Master?

Hi Nathan,

Thanks for the response. I understand your suggestions. The link you provide is newer than the one I have been using. I will study it, concentrating in the Descriptor Controller.

So far I am on track with your suggestions. I am using the Arria10/Cyclone 10 Avalon-MM DMA for PCIe Example Design; it does read/write the application layer registers; and responds to Legacy Interrupts; it will use On-Chip Memory for DMA transactions. Descriptor Controller is next.

Can you briefly describe the difference between using the Descriptor Controller internally instantiated or when it is not?

Regards,

Martin Lopez