07-18-2014 08:49 AM
I want to connect two ZYNQ boards using 3 GTX in each board implemted as one PCIe and two AURORA cores(one SMA and one SFP).
My first step is to connect the boards(bare metal) with sfp via one aurora core in each one. I got confused when connecting the clocks in Aurora core in Vivado.
I get errors for clock domains and reference frequencies.
I do the connections from external ports GT_REF_CLOCK (n and p) and define the input frequences but Vivado outouts error message:
I get also error with aurora data interface clocks directing to axi srtream. How can modify those frequencies or where can i connect them?
07-20-2014 05:44 PM
you can reconfigure the reference clock as 100MHz in your Aurora IP, or reconfigure your input port frequency as 125MHz. you need to make them the same frequency.
07-21-2014 03:25 AM
I know they must have the same frequency.
I tried the external clock being 125Mh but I get the same error...
as I see, there is no option in aurora IP GUI for ref-freq 100MH.
firdota, did fianally your design work?