We are using a 6110 to read a train of bi-polar analog pulses. The pulses consist of a negative and positive half-puls with 250 ns spacing. These are sampled with an external clock on PFI0 of the same high speed.
Up to now we were using traditional NIDAQ 7.0 currently with LV 7.0 on a Win2K PC. Now I ran into a limitation of 16mio samples for a finite scan. While modifying to help this, I decided to move up to mx interface. This is not giving the same results as with the old interface. The first sample (the negativ one) of the twin puls is read correctly. The second puls is obviously wrong. I suspect it is taken with a delay. When run with the maximum internal clock of 5MHz you can verify both halfwaves are correct. The hardware has not changed. Is there a different setup time for the sample puls between traditional and mx interface? Well, I doubt it. What else could I have missed. Thanks Gabi
