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GPIO Pin interrupt issue

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GPIO Pin interrupt issue

‎06-15-2016 01:26 PM
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lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by suhel on Thu May 29 22:31:29 MST 2014
Hi,

i am working with LPC4370, and i am using two GPIO pin interrupts, Pin_Int0_IRQ and  Pin_Int1_IRQ, i have configured them as edge sensitive (rising edge), but the issue is even though i connect the input to ground, it fires an interrupt, continously as long as it is connected. if i leave it floating there is no interrupt.

form the GPIO input pins i tried Pulling them down  as well as both pull up and pull down disabled.

can any one point out where i might be going wrong.

Regards,
Suhel
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‎06-15-2016 01:26 PM
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lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by rocketdawg on Fri May 30 08:55:37 MST 2014
we will have to see the pin setup code and the ISR code.  Otherwise you will have to provide a crystal ball we can gaze into.
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