I Want to synchronise event count from both counters (PCI-MIO 16 E board)

[rgharrison]

Hi GVS,

1. You have to give the two counter groups different group numbers. You can just leave it so that counter 0 is the top and counter 1 is the bottom.

2. You can change the freqout by using CTR Control.vi. There is a LabVIEW shipping example in the Help >> Find Examples... >> Hardware Input and Output >> Traditional DAQ >> Counters >> DAQ-STC. The example is Generate Pulse Train on FREQ_OUT.vi

Make sure you make your freq out value very low to start and then increase it until you get error 10920.

Have a good day.

Ron

[gvsoni]

okay
so i did whatever you said.
I got the FREQOUT divided by 16 and did all that i said last time. only improvement is that now the program does run 🙂 but it shows reading of only one counter. the other counter does not read at all !!!

so what next ?

by the way ron, have you checked this program on your computer with a function generator ?

[rgharrison]

Do you have any errors for your second counter? It could be that you don't have enough DMA channels for the second counter. You can use a DAQ Set Device Info function call to have that counter use interrupts if you are out of DMA channels. Hope that helps.

Ron