Hi Miklos! Miklos Maroti wrote: > These are acknowledged messages, right? What if you turn off > acknowledgments? Miklos
Yes. If I'm calling PacketAcknowledgements.noAck(msg), there is no significant effect. Is there any other way to disable ACK on RF230? Thanks, Andrey > On Wed, Feb 18, 2009 at 11:48 PM, Andrey Gursky <andrey.gur...@online.ua> > wrote: >> Hi Miklos! >> >> Miklos Maroti wrote: >>> On Tue, Feb 17, 2009 at 5:05 PM, Andrey Gursky <andrey.gur...@online.ua> >>> wrote: >>>> Hi Miklos! >>>> >>>> Miklos Maroti wrote: >>>>>>> Did you try RF230_SLOTTED_MAC ever? You should be able to get better >>>>>>> performance. >>>>>> No, I haven't yet heard about your implementation for IRIS. Thanks for >>>>>> the >>>>>> tip! I'll try it. Approx. 2x increase of transfer speed sounds really >>>>>> good. >>>> I've just tested this option. I'm getting the following speed increase >>>> with appropriate packet travel on 2 motes: >>>> one way: 160 -> 177 packets/s >>>> two way: 77 -> 84 packets/s >>> I might have tuned it down, I will take a look. Do you use two motes >>> only? Can you test a 3-mote setup where mote X is transmitting to mote >>> (X+1 mod 3)? Or can you send me your code so I can take a look? >> The test with 3 motes is now ready. Every mote sends the next packet in a >> task that is being posted in sendDone(). The results in comparison to >> default MAC: >> 53 -> 60 packets/s >> >>>> Could something yet influence the results? I'm using the default >>>> channel, packet length. >>> Should be fine. >> To mention: I'm using RF230_DEF_POWER=15 >> And I assume it is regardless, whether it and RF230_SLOTTED_MAC are defined >> through CFLAGS or PFLAGS. >> >>>>> No, it works only on the RF230. >>>> It's a pity. >>> It would not be hard to port it to the CC2420. >> OK. >> >> And may be you know the actual state about enabling blip (b6lowpan) on IRIS? >> >> --- >> >> By the way, I'm trying to implement the dynamical channel switch (e.g. for >> quickly RSSI tests) per command through uart, so that I must not reflash >> each time 2 or more motes. Now I have to carefully manage a variable, that >> saves the current channel assignment. I cannot find any function in rf230 >> stack to get the current channel. Is it hard to implement one? >> >> >> Thanks! >> Andrey >> > > _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
