Combining Multifuction DAQ boards with RS-232 Serial Portng input

[jo0743a]

I am running a PXI system with Multifuction DAQ boards as well as a GPS sensor running into the Serial Port.  The Multifuction boards run at a programmed speed while the GPS always update at once a second.  Eventially the boards and / or the GPS run out of buffer and LabView reads the GPS data incorrectly.  I need a solution to be able to read these two sources in an asynchronized manner.  

[Ryan_V[DE]]

jo0743a,

It sounds like you need to read data more often. If this is not possible, you need to read more data whenever you do read. Are you programming in LabVIEW or a text-based language? In LabVIEW, you can put the acquisitions in separate while loops and they will be able to run at different rates. In a text-base language, you would need to look into multithreading to independently control your read loop rates.

Hope this helps,
Ryan V.
National Instruments