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nickdigger · 08-30-2013, 03:51 PM

We've got a one-for-three match:

Code:

  EIMSK= (1<<INT0);
  EICRA= (0<<ISC01) | (1<<ISC00);

I have nothing for EIFR. Atmel says EIFR is always cleared (set to 1) when INT0 is config'd as a level interrupt. Nothing for EIFR in the dual-pin setup either, and it works. Not sure if you typo'd the (1 < INTF0) in your code, or just a cut+paste typo.

The ISC00 and ISC01 would be 11 for RISING, 10 for FALLING, 01 for CHANGE, 00 for LOW.. You seem to be... setting yours to 00 ?

08-30-2013, 03:51 PM	#24 (permalink)
nickdigger EcoModding Apprentice Join Date: Aug 2009 Location: terra firma Posts: 138 Thanks: 4 Thanked 24 Times in 22 Posts	We've got a one-for-three match: Code: EIMSK= (1<<INT0); EICRA= (0<<ISC01) \| (1<<ISC00); I have nothing for EIFR. Atmel says EIFR is always cleared (set to 1) when INT0 is config'd as a level interrupt. Nothing for EIFR in the dual-pin setup either, and it works. Not sure if you typo'd the (1 < INTF0) in your code, or just a cut+paste typo. The ISC00 and ISC01 would be 11 for RISING, 10 for FALLING, 01 for CHANGE, 00 for LOW.. You seem to be... setting yours to 00 ?