Hi
I am trying to using P2.27 and P2.26 as input interrupt pins.
I understand the these interrupts shares the EXINT3 interrupt vector
Has anyone have an example using this function
Regards
Jean-Jacques
Using GPIO2 interrupts with LPC2478
Started by ●December 5, 2014
Reply by ●December 5, 20142014-12-05
Basically, turn on the interrupt and register the handler with the VIC.
Then enable the pin interrupts using IO2IntEnR for rising edge or IO2IntEnF for falling.
In your interrupt handler you then check what pins have active interrupts with
IOxi20IntStatR or IO2IntStatF and then clear them once acted on using IO2IntClr
Baldur
On Fri, Dec 05, 2014 at 02:57:04AM -0800, t...@gotadsl.co.uk [lpc2000] wrote:
> Hi
>
>
> I am trying to using P2.27 and P2.26 as input interrupt pins.
> I understand the these interrupts shares the EXINT3 interrupt vector
>
>
> Has anyone have an example using this function
>
>
> Regards
>
>
> Jean-Jacques
Posted by: Baldur Gislason
Then enable the pin interrupts using IO2IntEnR for rising edge or IO2IntEnF for falling.
In your interrupt handler you then check what pins have active interrupts with
IOxi20IntStatR or IO2IntStatF and then clear them once acted on using IO2IntClr
Baldur
On Fri, Dec 05, 2014 at 02:57:04AM -0800, t...@gotadsl.co.uk [lpc2000] wrote:
> Hi
>
>
> I am trying to using P2.27 and P2.26 as input interrupt pins.
> I understand the these interrupts shares the EXINT3 interrupt vector
>
>
> Has anyone have an example using this function
>
>
> Regards
>
>
> Jean-Jacques
Posted by: Baldur Gislason
