For our new design, there will be two FPC402 with each one connected to 4 SFP+. And there’s another QSFP-DD connected to FPGA directly.
SFP LED blinking can be synchronized by CTRL4 to CTRL3 pin daisy chain. But how to synchronize SFP LED blinking and QSFP-DD LED blinking in the system? Can I connect 1Hz LED clocks from FPGA to the FPC402 CTRL3 pin for LED blink synchronization?