07-09-2005 12:20 PM
07-11-2005 02:55 PM
07-11-2005 06:55 PM
Hi Sean,
I tried the code which you have sent and tried to run using internal clock as reference. Now i am missing data at lower speeds even at lower speeds.
Regards,
Siddu
07-12-2005 05:13 PM
07-13-2005 01:37 PM
Hi Sean,
Thanks for the help. I could do the loop back test till 2.5Mhz clock rate. I am getting jumbled data for any of the clock rates beyond that. Am not sure whether the results depend on the pc speed and other factors like windows version. Still confused on why we could not work at higher speeds and suspect whether the card can really operate at 20Mhz.
Regards,
Siddu
07-14-2005 11:14 AM
Hello Siddu,
First, the benchmark for 20 MHz is for a single timing engine at a time. Since you are using both timing engines (one for input, one for output), then you will lose some bandwidth because the board must share an internal bus between the two groups. That will cause some overhead. Nonetheless, I think you should be able to go faster than 3.3 MHz. I have presented this issue to a developer and am waiting on a response. In the meantime, would you be willing to try this in NI-DAQmx?
Regards,
Sean C.
07-14-2006 05:38 PM
07-17-2006 03:25 PM