Thank you Janos and Miklos. I'm thinking of doing this as well
"Modify RF230RadioC and remove from the layers the CollisionAvoidance layer completely. Just remove the components and correct the wirings. Also remove the LowPowerListening, TrafficMonitor, SoftwareAck and CarrierSense layers. This will improve the timing a lot. You cannot use ACKS in this case." - Miklos as in https://www.millennium.berkeley.edu/pipermail/tinyos-help/2010-June/046901.html will that help? Thank you. Achintha On Thu, Oct 20, 2011 at 10:56 AM, Miklos Maroti <[email protected]>wrote: > Hi Achintha, > > Janos is only partially right. You can disable the software CCA check > (which is doing an RSSI check), but the hardware can still prevent you > to send a message. If it RF230 is in the process of receiving a packet > then you cannot disturb it with a transmit, it will continue receiving > the packet. > > Miklos > > On Thu, Oct 20, 2011 at 5:48 PM, Janos Sallai > <[email protected]> wrote: > > Achintha, > > > > Modify tos/chips/rf230/RF230RadioP.nc such that > > RF230DriverConfig.requiresRssiCca() and requiresSoftwareCCA() always > > return FALSE. This will > > prevent the radio driver from carrying out CCA before sending the > > packet. That is, the packet will be transmitted even if the channel is > > busy. > > > > Janos > > > > On Wed, Oct 19, 2011 at 6:20 PM, Achintha Maddumabandara > > <[email protected]> wrote: > >> Hi, > >> > >> Could someone please tell me how to disable CSMA in RF230? > >> I want to synchronize all the IRIS motes so that I could implement TDMA. > >> > >> There are quite a few references for CC2420 though. > >> > >> Thank you. > >> Achintha > >> -- > >> Achintha > >> > ---------------------------------------------------------------------------------------------------------------- > >> Be GREEN! Read from the SCREEN! > >> > ---------------------------------------------------------------------------------------------------------------- > >> > >> _______________________________________________ > >> Tinyos-help mailing list > >> [email protected] > >> > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > >> > > _______________________________________________ > > Tinyos-help mailing list > > [email protected] > > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > > -- Achintha ---------------------------------------------------------------------------------------------------------------- Be GREEN! Read from the SCREEN! ----------------------------------------------------------------------------------------------------------------
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