Euresys Coaxlink 1629, Hardware Manual

Page: 23 / 75

23
FPGA Status LED
FPGA status LED indicator states
LED
state
Symbol Meaning
Off Board not powered.
Solid
green
FPGA status OK.
All the FPGA clock networks and the DDR memory are operating normally.
Solid
red
FPGA status NOK.
Possible causes are:
● At least one FPGA clock network is not operating normally. This might
be caused by excessive jitter on external clock signals of the CoaXPress or
the PCI Express interfaces.
●
The DDR memory controller has not been able to successfully perform
the calibration procedure.
Coaxlink Hardware Manual