VXI and VME

cancel
Showing results for 
Search instead for 
Did you mean: 

HPE 1420b Measurement Problems

I have an HPE 1420B freq/cntr board. I can read frequencies using the hpe1420b_stand_meas()
NI driver calls (CVI 5.0), HOWEVER, for low frequency signals I get time-out
errors.

It is not symetrical across channels (occurs near 150 HZ on inp2 but low
frequency ~3Hz works on inp1). I'm using the same code for both channels.

:

What it appears NOT TO BE:

* an aperature problem
* trigger level problem
* signal amplitude
* AC vs DC coupling
* a board problem (2 boards show same effect)
0 Kudos
Message 1 of 1
(5,666 Views)