Hi, I think our only m0+/802.15.4 board is the samr21-xpro and there are problems with the current/old network stack because of its memory demands. That said: which protocol on top of IP are you interested in? I assume you want to ignore RPL and any other side-tasks for this evaluation?
Cheers, Ludwig Am 17. März 2015 17:46:52 MEZ, schrieb Simon Vincent <simon.vinc...@xsilon.com>: >Hi Craig, > >We have a 802.15.4 transceiver that is capable of 250kbps. We are >thinking of using this with a Cortex M0+ but wanted to make sure that >the M0+ would have the processing power to handle the >802.15.4/6lowpan/ipv6 stack at a datarate of 250kbps. > >I just wondered if anyone had done any datarate measurements on >existing >development boards using the Cortex M0+? > >- Simon > >On 17/03/15 16:20, Craig Younkins wrote: >> Hi Simon, >> >> Throughput will be highly dependent upon the RF environment and what >> transceiver you are using. The M0+ most likely has enough power to do > >> it under ideal conditions, but retransmissions due to collisions will > >> limit the effective bandwidth. >> >> You can use 900 mhz and 2.4 ghz transceivers with 15.4. ~900 is >> significantly less crowded but lower theoretical bandwidth. The Atmel > >> 212B is 900 Mhz and specs 1000 kbps as the max air data rate. >> >> Which transceiver are you using? >> >> Craig Younkins >> >> On Tue, Mar 17, 2015 at 11:42 AM, Simon Vincent >> <simon.vinc...@xsilon.com <mailto:simon.vinc...@xsilon.com>> wrote: >> >> Has anyone done any performance tests to see what throughput can >> be achieved using RIOT? >> >> I would be interested to know if the Cortex M0+ is powerful >enough >> to sustain 250Kb/s TCP over 6lowpan/802.15.4. >> >> Does RIOT have any mechanism to measure CPU usage? >> >> - Simon >> _______________________________________________ >> devel mailing list >> devel@riot-os.org <mailto:devel@riot-os.org> >> http://lists.riot-os.org/mailman/listinfo/devel >> >> >> >> >> _______________________________________________ >> devel mailing list >> devel@riot-os.org >> http://lists.riot-os.org/mailman/listinfo/devel > > > >------------------------------------------------------------------------ > >_______________________________________________ >devel mailing list >devel@riot-os.org >http://lists.riot-os.org/mailman/listinfo/devel _______________________________________________ devel mailing list devel@riot-os.org http://lists.riot-os.org/mailman/listinfo/devel
