AVR-Chat

Thanks to all of the help I got a couple of weeks ago with timers, I have been able to get my PWM stuff (mostly) working.

I assume it is possible to tune the PWM period beyond the blunt instrument of the div by registers but I don't see how to do it.

Here are my settings, which give me a 500Hz frequency with an 8M clock.  I would like to get that to between 200 and 300 Hz if I can.  Am I missing a setting that lets me do that, or is it not possible.



	DDRD |= (1 << PD6);		// enable PWM (OC0A, PD6 ) output pin 
	OCR0A = 0;				// set PWM % 0= off 255 = full
	TCCR0A = (1 << COM0A1) | (0 << COM0A0) |  // OC0A in PWM mode
	         (0 << COM0B1) | (0 << COM0B0) |  // OC2B is not used
	         (1 << WGM01)  | (1 << WGM00);  // PWM mode
        TCCR0B = (0 << CS00) | (1 << CS01) | (0 << CS02); // div 8 on clock
	TCCR0B |= (0 << WGM02);  // more PWM mode

Thank  you.