Hi Ilias, I don't know details about the PWM clock generation on this microcontroller *but* "TCC_CLOCK_PRESCALER_DIV1" means "no division of the source clock". That will be the case when (compare [1]):
CLOCK_CORECLOCK / (freq * res) = 1 . Calling the function like this: get_prescaler(1, &scale), returns 0 (same value as TCC_CTRLA_PRESCALER_DIV1_Val) resulting in no prescaler selection here [2]. That's why I assume the feature you want should be already there, or am I mistaken? In case you convince me of the contrary :-), there's nothing against improving the peripheral driver implementation. Best regards Peter [1] https://github.com/RIOT-OS/RIOT/blob/master/cpu/samd21/periph/pwm.c#L101 [2] https://github.com/RIOT-OS/RIOT/blob/master/cpu/samd21/periph/pwm.c#L137 Am 12.12.2016 um 14:41 schrieb Ilias Seitanidis: > Dear all, > > I would like a small explanation of the value > "TCC_CTRLA_PRESCALER_DIV*_VAL" in line 84 in [1], is it possible to add the > equivelant value of the "TC_CLOCK_PRESCALER_DIV1"(as found from the atmel > studio). > > Thank you in advance! > > Best regards, > > Ilias > > [1] https://github.com/RIOT-OS/RIOT/blob/master/cpu/samd21/periph/pwm.c . > > > > _______________________________________________ > devel mailing list > devel@riot-os.org > https://lists.riot-os.org/mailman/listinfo/devel > -- Peter Kietzmann Hamburg University of Applied Sciences Dept. Informatik, Internet Technologies Group Berliner Tor 7, 20099 Hamburg, Germany Fon: +49-40-42875-8426 Web: http://www.haw-hamburg.de/inet _______________________________________________ devel mailing list devel@riot-os.org https://lists.riot-os.org/mailman/listinfo/devel
