Hi,
I was using PCI6602 to perform some photon counting task. As the 32-bit counter will roll over, it is able to count up to 2^32/80M = 53.68 seconds (when 80MHz timebase is used) before roll over. My question is, is there any preset time lag between the terminal count and the first count of the next round after roll over? Or it is still 12.5 ns? As shown in the attached pic where I measured the photon arrival time for 5~10 mins, it will be good if the lag after the 53.6870 could be known accurately. Any help will be appreciated!