Handling DIO Interrupts with 6602

[ashady]

Hi,

I'm looking for the easiest way to check if one of the DIO changed its state, without continuously checking.

I thought about using interrupts but I can't find any thing about it, programming in C++.

Thanks,

Amit

[Abhinav T]

Amit,

Have you considered using change detection? Change detection essentially acts as a trigger on digital channels and allows you to trigger certain tasks such as a read or a write from the digital port. Here is a DevZone document that describes how change detection works. There is also a shipping example for ANSI C that shows how you can setup change detection.

Hope this helps!

[ashady]

Thanks for you quick reply, Abhinav.

I'll only be able to check it only on wednesday.

Are you sure "change detection" is supported by 660x Cards ?

(It seems every card but the 660x has that feature - http://zone.ni.com/devzone/cda/tut/p/id/3288 )

[Abhinav T]

Amit,

I apologize for not seeing that previously but unfortunately your card's digital input does not support triggering. You can only trigger the counter operations.