IO standard issue when connecting USB_uart peripheral to my block design.

[StefanOR]

Hey All,

I am receiving an error message when attempting to connect my usb_uart port to my block design. I am using a Zedboard with vivado 2018.3 and the master github XDC file. 

I will attach images of my block design, error message and  the xdc file to this message. 

Help/ suggestions would be appreciated, I think I just need to set the IO standard somewhere. 

Best!

Zedboard-Master.xdc

[jpeyron]

Hi @StefanOR,

The USB UART bridge is tied directly to the ZYNQ processor.The USB UART Bridge is handled by the ZYNQ processor. When using the Digilent board files the default setting in the block automation is  configured by the board files. You do not need to  and would not be able to use the Uartlite IP Core to connect to the USB UART in this case. I have attached screen shots. The SDK code for the PmodESP32 is made to work for either ZYNQ or Microblaze designs.  

cheers,

Jon