I have written a program to count the rising edges of a square wave produced by a function generator using the DAQmx functions. The counter is read in a time loop with a period of 1 second, so we take a sample once every second. It appears that the program is working correctly accept for the fact the the counts are continuously 2% lower than they should be. We are guessing that this is due to the fact that the timed loop really isn't taking a full second to complete each iteration. Any suggestions on how to fix these timing errors? The counters are read from the NI 6608 Device if that is of any help.
