Hello folks.
I am trying to build an ethernet SGMII application on UltraZed-EV SOM with its corresponding carrier card.
For that i need 250MHz clock that go inside AXI Subsystem 1G/2.5G xilinx IP to pin mgt_clk [ differential clock]
I found in UltraZed-EV Carrier Card schematics [page 4] clock that is seem to fit , in U6 pins 22,23 I have GTH_REFCLK2_N
and GTH_REFCLK2_P respectively.
I don't have indication in the system that this clock is actually running, so i wonder under what circumstances it is working?
Do i need to activate it via i2c pins of U6 component?
Alternatively, can you suggest other suitable clock for my needs?
Link to the board carrier card manuals:
snippet from the schematics of the carrier showing the clock generator:
Thanks in advance.
