Hi all!
I'm trying to generate interrupts using timer0 on a Mega128 but
unfortunately can't see any change in overflow and capture/compare
flags. This is the code I tried (compiled using WinAVR 20081205):
TCCR0 = _BV(CS02);
cli();
while (1)
{
if (TIFR & _BV(OCF0))
{
DEBUG_PORT ^= _BV(DEBUG_PIN);
TIFR |= _BV(OCF0);
}
}
I tried the same with TOV0 flag without success. If I read the counter
register TCNT0 I can see the counter counting from 0x00 to 0xff. I
verified in the list file that all registers and bits are correct.
Surprisingly the code works well if changed to timer2.
Can anyone give me a hit why timer0 is not raising this flags in my
code?
Kind regards
Jan
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