@Philipp Kravanja wrote:
Hi. i want to use two aquire waveform(s).vi in one LabVIEW vi that aqcuire data from the same device but with a different sampling rate (one channel about 20000Hz, and six channels at about 20-to 50 Hz). When i do this there is data missing. lets say i start aqcuiring at t (time)=0. For the low sampling rate channel i get data for like 1 sec then there are 1,5 secs of data missing i get another second of data and so on. whats the reaseon, or how can i aqcuire with different sampling rates ? do i need two devices ? or is my computer to lame?
by the way, i use
LabView 6.1, a PCI- MIO 16E-4 with a SCB-68 my computer has a AMD Athlon Xp 1700+ processor with 512 MB Ram and my system is windows 2000.
thanks for ay help
Hi Philipp,
your computer is still fine, no need to upgrade here. The strange behavior you encountered is based on the fact that most DAQ boards can only control one task at any given time for each of the card's six segments (analog input, analog output, digital input, digital output, counter 0, counter 1).
As you already correctly persumed, you will need a second device to be able to sample channels with different timing parameters...
Best regards,
Sebastian
Message Edited by SFK on
01-28-2008 12:08 PM
