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LPC interrupt problem

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alzomor

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lpc interrupt

Hi

I am using MCB2130 of Kiel.
My program use FIQ and RIQ on EXTINT1 & EXINT2
When simulating on Keil every thing is OK
but in Real worled it seams that the interrupts are not working
Dose the 5v tolerant of the IO's means that the EXTINT can be 0-5V or
it had to be 0-3.3V?

Salam
Hossam Alzomor
www.i-g.org
 

keil lpc interrupt

Hi,

5V tolerant I/O means your interrupts can be 5V.

There have been some restrictions on analog input pins for 3.3V only but not on digital inputs.

Did you already have a look at the Application Notes from Philips how to handle interrupts?

There is an extensive list of microcontroller documents here:
**broken link removed**
Got to the Application Notes and look for AN10254

Hope this helps you to get your interrupts going

Bob
 

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    alzomor

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lpc interrupt

Hi

I already have interrupts working on the Keil simulator but it don't work on board with 5 volt.

the interrupts also works on the board with level 3.3 with switch on P0.14

Salam
Hossam
 

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