--- Quote Start ---
That would require using the HPS part of the device.
Can the USB be used with the FPGA-side only?
--- Quote End ---
Look at the block diagram on the second page of the schematic; there is no FPGA I/O connection to an external USB PHY like there is on the DE-series boards. The ULPI PHY connects to the HPS side.
I'm sure there is probably some option for the FPGA to access the HPS peripherals and you could use that to access the ULPI PHY, but that approach is probably a waste of your time. Software already exists for interfacing to the ULPI PHY, so its likely a more productive application of your time to use the HPS-to-FPGA bridges to transfer data to the HPS side and then use the processor to pass that over USB.
That's just my opinion of course :)
Note: there might be a way of customizing the USB DMA buffers so that you can transfer from FPGA-to-USB, but you would use Linux on the processor to implement/coordinate that.
Cheers,
Dave
Honored Contributor
