Hello,
I am trying to use the SFP+ interface of the UltraZedEV card to echo IP traffic (with PL Ethernet).
In my design with Vivado, I use the "GTH-10GBASE-R" IP core.
I have a problem with the "GT reference clock", since in the AVNET card the GTH clocks that can be used DO NOT have a frequency that is valid for the IP core "GTH-10GBASE-R", according to the "UltraScale FPGAs Transceivers Wizard (1.7)" of Vivado.
That is, the AVNET card has the following GTH clocks: 148.5MHz (GTH_REFCLK[0] for HDMI and GTH_REFCLK[5] for Aux) and 250MHz (GTH_REFCLK[2]-SDI). In addition, external clocks to the Carrier could be used, but I have no possibility of having them. These external clocks would be from the SMA interface (GTH_REFCLK[3] and GTH_REFCLK[7]) and from the FMC (GTH_REFCLK[4] and GTH_REFCLK[6]). The GTH_REFCLK[1] would remain, which is from the HDMI_RX.
Of these previous clocks, you would only be able to use the 148.5MHz and 250MHz ones, which are not valid in the core IP "GTH-10GBASE-R", according to the "UltraScale FPGAs Transceivers Wizard (1.7)" of Vivado.
I need to find a reference clock that works for the core IP "GTH-10GBASE-R"...
Somebody could help me?
Can anyone think of any other possibility to use the SFP interface on the UltraZedEV card?
Thank you for helping!