Re: Installing ISR for Interrupt 5

Bryan Armstrong <bryan.armstrong-6tN4nzCoH/[email protected]>
Newsgroups gmane.comp.hardware.microcontrollers.tini
Message-ID <[email protected]>
Chris Musial wrote:
> Thanks for the response.  You had said to make sure J5 is not installed, however
> we are using it for the netboot.  Could that be what's causing the rapid
> interrupts?  Is the use of J5 incompatible with using int 5?  (And if int 5
> can't be used, presumably ints 2-4 can't be used since they share the same
> interrupt vector and enable bit).

This could cause the interrupts you are seeing.  Try removing J5 to see 
if the interupts stop.  P1.7 is INT5.  You can use any interrupt line 
that is physically unencumbered.  P1.5 (INT3) and P1.6 (INT4) can be 
used if you do not need flow control for serial 4.

-- 
--
Bryan Armstrong
bryan.armstrong-6tN4nzCoH/[email protected]


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