Posted on March 01, 2007 at 14:12Hi Guys.
I'm using a STR712FR2 with the Rowley Crossworks IDE.
I'm having problems with my external interrupts, in that I can't exit the interrupt function.
I'm using P0.10.
I initialised the interrupts as follows:
P0.10 as a TTL input.
XTI->MRH |= 0x20;
XTI->TRH |= 0x20;
EIC->IER0 |= 0x20;
And I set the priority and enable global interrupts.
But like I said my problem isn't entering the interrupt, it's exiting it.
The code supplied by Rowley takes care of reading the IVR and before I exit the function I do the following:
EIC->IPR |= 0x20;
XTI->PRH |= 0x20;
and I read port 0 on the advice of a colleague.
Can anyone tell me what I might be doing wrong?
Thanks
Neil
