02-28-2019 02:30 AM
I'm trying to test a GTP link on an artix-7 currently and cannot get any of the links I am working with to go higher than 0.625gbps, regardless of the values which i put in via the wizard. I have found if I open the properties of on of the links, I can manually change the output divider value which then will change the speed of the link, but this becomes unstable.
Is there a reason why I am being limited to 0.625gbps regardless of the values I choose? Both system clk and refclk are 150MHz.
02-28-2019 07:50 AM - edited 02-28-2019 07:51 AM
This is not expected. Sorry, I will make many questions trying to guide your debug.
02-28-2019 11:22 PM
03-01-2019 02:29 AM
If the PCB was proven to work fine in the past I would
1) upgrade to 2018.3
2) make a simpler IBERT, with few (one or two) active channels