time base of two PCIE6537

[pawel]

Hi

Two DIO PCIe6537 are connected by the RTSI cable.

The idea is they get the same trigger and start sampling simultaneously. 

All would be fine if not the time stamp in the waveform which is exactly jittering between +-1ms (in steps of 1ms). So it can be -1,0,+1 ms difference between two cards.

It is a big problem for me, so hopefully someone has a magic trick how to sync the time stamping of the DIO.

Is the DIO time stamping resolution of 1ms?

How to improve the time stamping of it? Any links?

thanks

Pawel

[Efrain_G]

Hey Pawel,

While your hardware might be synchronized correctly, timestamps are determined by your operating system. This can result in dissimilar timestamps. You might find the following Knowledge Base useful:

http://digital.ni.com/public.nsf/websearch/5D42CCB17A70A06686256DBA007C5EEA?OpenDocument