hi, I am working on a TOSSIM application and trying to broadcast a simple message to neighbors. Once nodes get the broadcast message they are supposed to reply back to that message.
In order to achieve above objective, i first tried to run RadioCountToLeds in TOSSIM which is very similar to my objective (i followed the tutorial in http://docs.tinyos.net/index.php/TOSSIM#Injecting_Packets too. but the same result). As mentioned in http://docs.tinyos.net/index.php/TOSSIM#Injecting_Packets, i used packets.py python script too. Following is my output. *1 DEBUG (0): RadioCountToLedsC: timer fired, counter is 1. 2 DEBUG (0): RadioCountToLedsC: packet sent. 3 Delivering Message <RadioCountMsg> 4 [counter=0x7] 5 to 0 at 3073726882 6 DEBUG (0): Received packet of length 2. 7 DEBUG (0): LEDS: Led0 on. 8 DEBUG (0): LEDS: Led1 on. 9 DEBUG (0): LEDS: Led2 on.* Following is my MilliTimer.fired() method. By looking at the following code we know that 1st two lines of my output is from this code and it has worked well. But, as i feel, the rest of the debugging statements are printed because of the packet sent by the python script, not because of the broadcasting message. can anyone tell me is this the way that it's supposed to work? why do we send a packet in the python script? is there any special reason? i want to broadcast messages via nodes themselves. Can i do that with TOSSIM and witout sending packets in python script? *event void MilliTimer.fired() { counter++; dbg("RadioCountToLedsC", "RadioCountToLedsC: timer fired, counter is %hu.\n", counter); if (locked) { return; } else { radio_count_msg_t* rcm = (radio_count_msg_t*)call Packet.getPayload(&packet, NULL); if (call Packet.maxPayloadLength() < sizeof(radio_count_msg_t)) { return; } rcm->counter = counter; if (call AMSend.send(AM_BROADCAST_ADDR, &packet, sizeof(radio_count_msg_t)) == SUCCESS) { dbg("RadioCountToLedsC", "RadioCountToLedsC: packet sent.\n", counter); locked = TRUE; } } }* I really appreciate any response. I am stuck at this point. Thanks in advanced. Lasanthi
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