Thank you for your answer, I have enabled global interrupt flag (I did get interrupts from the serial port) I would like to use the crystal only for the timer. the CPU itself is running on the internal oscillator (default).
-- Ori Idan On Wed, Apr 16, 2008 at 10:43 AM, Neil Davey <[EMAIL PROTECTED]> wrote: > Hi Ori, > > [EMAIL PROTECTED] wrote: > > > I have a simple system with 32.768Khz crystal connected to XTAL1 and > > XTAL2 > > Do I need a special operation to enable it? > > > > I did the following initializations in order to get a 1sec interrupt: > > > > TCCR2B = 0x05; /* Osc/128 prescaler */ > > ASSR = _BV(AS2); > > > Doesn't this attach the timer clock to TOSC pin(s)? > > > TIMSK2 = _BV(TOIE2); /* enable overflow interrupt */ > > > > However no interrupt was generated. > > What did I do wrong? > > > Are you setting the global interrupt flag? sei() > > > > > -- > > Ori Idan > > > Are you wanting to run the whole micro from the 32K crystal, or just the > timer? > > Regards > Neil Davey > > > > _______________________________________________ > AVR-chat mailing list > AVR-chat@nongnu.org > http://lists.nongnu.org/mailman/listinfo/avr-chat > -- ספרים וסיפורים שכתבתי: http://www.thestories.org
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