On Dec 8, 2006, at 8:43 AM, Lorenzo Mainardi wrote:
Hi, I'm trying to send and receive message in Tinyos-2.x. I have
been foolowed the chapter 3 of Tutorial and I write this code:
event void Timer.fired(){
dbg("beacon", "Timer fired\n");
if(busy)
dbg("beacon", "BUSY!!!");
if(!busy){
beaconPayloadPtr = (BeaconMsg*) (call Packet.getPayload
(&beaconPacket, NULL));
beaconPayloadPtr -> msgCode=BEACON_CODE;
beaconPayloadPtr -> seed = call Random.rand16();
if (call BSend.send(AM_BROADCAST_ADDR, &beaconPacket, sizeof
(BeaconMsg)) == SUCCESS) {
// busy = TRUE;
dbg("beacon", "Message sent");
}
}}
event void BSend.sendDone(message_t *msg, error_t error){
dbg("beacon", "send done\n");
if (&beaconPacket == msg) {
busy = FALSE;
}
}
If I try to debug my application, I send but I don't receive any
signal from the event sendDone.I think to have well linked all the
modules and interfaces
Could you help me?
You are using TOSSIM? If you do not specify a radio topology then the
default is for nodes to have a noise value of 0 dBm, which is well
above their clear channel threshold. So the MAC layer backs off forever.
Phil
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