Hi, Thanks for all the quick replies. Just compiling the base station with TASKLET_IS_TASK allows the application to run at least for over half an hour! (Although I will add it to the other applications if that is best.) Is there some sort of race condition? Could you explain what this flag exactly does?
Martin On Mon, Jan 19, 2009 at 22:49, Miklos Maroti <[email protected]>wrote: > Hi, > > Try compiling the base station (and all of your applications) with > defining TASKLET_IS_TASK. Just add the > > CFLAGS += -DTASKLET_IS_TASK > > line to your makefile (and that of the basestation). Please try with > that and let me know if that fixes the problem. > > Miklos > > On Mon, Jan 19, 2009 at 1:42 PM, Martin van de Goor > <[email protected]> wrote: > > Dear all, > > > > I am having a problem with CTP and packet bridging. I am using IRIS > motes, > > the latest TinyOS 2.x cvs version, and Windows/Cygwin. > > First, the application is described. Second, the problem description is > > given. Last, critical code parts are given. > > > > The goal of the application is to obtain distance estimates (based on > RSSI) > > between the Sender component and other nodes. This information should be > > forwarded to the Base node using the Collection Tree Protocol. > > > > There are four components: > > - Sender (ID=7): sends a packet burst every second using AMSend > > - Intercepter (ID=3): receives Sender packets, adds RSSI information, > sends > > new message using Collection interface > > - Base (ID=0): Based on BaseStationC, which acts as a TinyOS 2.x base > > station that forwards packets between the UART and radio. The base is the > > root of the Collection tree. It also adds RSSI information to packets if > it > > receives them from the Sender directly. > > - Listener (pc): Based on RssiDemo. Listens for and displays packets. > > > > Packet received directly by Base: > > Sender 7 RSSI 42 LQI 255 Seq 6 Packet 20 > > > > Packet received by the Intercepter and forwarded to Base: > > Sender 7 RSSI 35 LQI 255 Seq 6 Packet 20 Intercepter 3 THL 1 ETX > 10 > > originSeqNo 149 AM type 11 data 7 > > > > But, usually within a few minutes (not deterministically), serial > > communication stops and usually the error "bad packet" is given by > Listener, > > but not always. Using tos-serial-debug shows that there is no > communication > > at all, but the application is still running as lights keep flashing. The > > base station flashes yellow, indicating it is dropping packets. > > Only restarting 'Base' fixes the problem. The problem does not occur if > the > > Intercepter node is not started. > > > > Does anyone have a suggestion on the type of problem or how to find it? > > Help would be much appreciated! > > > > Best regards, > > > > Martin van de Goor > > > > ***************** > > ** Intercepter > > ***************** > > // sending of collection message > > message_t colMsg; > > event message_t* RssiMsgIntercept.receive(message_t *msg, void *payload, > > uint8_t len) { > > RssiMsg *rssiMsg = payload; > > if (len == sizeof(*rssiMsg)) > > { > > RssiMsg *colRssiMsg = call RssiToRoot.getPayload(&colMsg, > > sizeof(RssiMsg)); > > if (colRssiMsg != NULL) > > { > > *colRssiMsg = *rssiMsg; > > colRssiMsg->rssi = getRssi(msg); > > colRssiMsg->lqi = getLqi(msg); > > > > resultSend = call RssiToRoot.send(&colMsg, sizeof(*colRssiMsg)); > > } > > } > > return msg; > > } > > ***************** > > ** Basestation > > ***************** > > // changes to BaseStationC.nc > > components CollectionC; > > BaseStationP.CollectionControl -> CollectionC; > > BaseStationP.RootControl -> CollectionC; > > BaseStationP.RadioReceive[COL_RSSIMSG] -> > > CollectionC.Receive[COL_RSSIMSG]; > > BaseStationP.RadioSnoop[COL_RSSIMSG] -> CollectionC.Snoop[COL_RSSIMSG]; > > _______________________________________________ > > Tinyos-help mailing list > > [email protected] > > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > >
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