I am running into troubles with counting on a PCI 6229 card using a
program which is known to work well with our other NI hardware.
I have set up a buffered counting using ctr 0 as the main counter and ctr 1 as the time source.
I have connected ctr1 out (output marked ctr1out on the BNC-2110) to
ctr 0 gate (PFI9) and ctr 0 src to the BNC input (via pin "user 2")
So far so good. Unfortunately if there is not signal on ctr0 src, I get
no return value from the Read-VI (i.e. always an empty matrix).
Furthermore if I set the timebase of ctr1 to 1ms and try to measure a
slow signal (i.e. 200 counts per second), I do not receive 1000 values
a second, 200 of which are 1, 800 of which are 0; instead I end up with
only 200 datapoints, all 1s.
This behaviour is baffeling me; I have used a different box, different
cables to connect the pins on the BNC-2110 block - always the same
result.
Is there something I am missing or is the PCI 6229 unable to use its counters to do buffered, timed counting?
Your input and help would be highly appreciated!
mlg
Gerhard
