Thanks for the answer. I'm going to implement RNG for the SAMR21 then. Ok for the RTC.
How about the Energy Saving (MCU) for the SAMR21? Cheers, Baptiste 2014-12-04 9:58 GMT+01:00 Ludwig Ortmann <[email protected]>: > Hi, > > On Thu, Dec 04, 2014 at 09:07:31AM +0100, Baptiste Clenet wrote: > > I've got some questions about the implementation of RIOT on the SAMR21: > > > > - RNG: There is no HW module in samd21 but the transceiver at86rf233 > > provides one (see 40.2 in datasheet). Should we implement it anyway? > > Yes, the source for random data is up to the platform. As long as it's > documented it can even be an unconnected pin of the CPU. > > > - What's the difference between RTT (Real Time Timer) and RTC (Real > Time > > Counter) for the SAMR21? > > From the RIOT documentation of the RTC interface: > "Low-level RTC (Real Time Clock) peripheral driver." > The RTC is intended to count calendar time, not system time. Therefore > it is treated differently from other timers. Refer to the R21 > datasheet chapter 17. for details. > > Cheers, Ludwig > _______________________________________________ > devel mailing list > [email protected] > http://lists.riot-os.org/mailman/listinfo/devel >
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