You might try ensuring that you have a solid 0 (gnd) value
on the pin to start with. Just swapping the pin between gnd
and the battery supply should do the trick. If you're the cautious
sort you could use a 1k resistor to do the connections.

MS


patrick kuckertz wrote:
Hi,
it is still not working. But I have placed the code in start and have changed this two lines, cause i am using pin6 (INT0) sbi(EICRA,ISC01); sbi(EICRA,ISC00); Now I do not get the interrupt. But unfortunately i do not get it with hardware,too. And there is an interrupt raised. Does anyone how much volt the signal should have? I use 3V and I use half a second as duration, which is too long. But I get not a single interupt... Patrick


*/patrick kuckertz <[EMAIL PROTECTED]>/* wrote:

    Hi,
I want to create an interrupt with an own circuit for mica2. In my program I do this in init(): // -- Triger on rising edge
      sbi(EICRB,ISC01);
sbi(EICRB,ISC00); //-- Enable Interrupt
      sbi(EIMSK , INT0);
and I have added this: //Interrupt routine
     TOSH_SIGNAL(SIG_INTERRUPT0){
      call Leds.yellowOn();
      if (busy != 0){
       call CountTime.Start();
       atomic
        {
         busy = 1;
        }
       call Timer.start(TIMER_ONE_SHOT, delaytime * 8);
       }
        }
However, when I switch on the mote i get directly this interrupt.
    But somehow it does not start the timer... I have added an LED to
    check in timer.fired.
    I have not even attached the hardware.
Best Regards, Patrick Kuckertz

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