do you know how these numbers (400ps and 60ps) scale with the sampling rate? The manual says they are for 5GS/s, do they change with slower sampling?
Thanks and best regards,
Here is the full version of the program with clock daisy-chaining. Before switching to the external clock, it checks if the clock really is there (by reading an internal scaler), and only then enables it. Note that the code also works without clock daisy-chaining. But without clock daisy-chaining your have some 400 ps time resolution between boards, and with clock daisy-chaining you get some 60 ps.