Experimental Physics and
Industrial Control System

Are you sure you have the IACK daisy chain completed on the backplane? If the 
source of the interrupt isn't right next to the cpu, the chain can be open. Then 
the interrupts are not handled.


Garrett Rinehart
Intense Pulsed Neutron Source
Argonne National Laboratory
9700 S. Cass Ave
Argonne, IL  60439
(630)252-6561

> To: tech-talk <[email protected]>
> Subject: XY240 interrupts
> MIME-Version: 1.0
> 
> Hello
> I am currently trying to write some interrupt support for an XYCOM xy240
> I/O board. 
> I have used devConnectInterrupt and intConnect to try and connect my ISR
> with the interrupt from this board, to no avail.
> When I input a signal to one of the interrupt inputs on the board, the
> internal registers change properly, but my ISR does not run. 
> I suspect that either the board is not generating an interrupt, or that it
> is being ignored somehow.
> If anyone has any suggestions I would love to hear them.
> Thanks
> Liam O Neill
> 

Replies:

RE: XY240 interrupts Jeff Hill

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