Hi,
I have been struggling for days trying to tunnel a CTP header over serial
and receive the header in Java. I have just modified the
MultihopOscilloscope program. Here is my code:
The base node of a CTP network receives packets and forwards them on serial
as follows:
event message_t* Receive.receive(message_t* msg, void* payload, uint8_t
len) {
ctp_data_header_t* in = (ctp_data_header_t*) payload;
ctp_data_header_t* out;
out = (ctp_data_header_t*) call SerialSend.getPayload(&uartbuf,
sizeof(ctp_data_header_t));
memcpy(out, in, sizeof(ctp_data_header_t));
uartlen = sizeof(ctp_data_header_t);
call SerialSend.send(0xffff, &uartbuf, uartlen);
return msg;
}
The Java program running on the PC tries to capture the headers as follows:
public class HeaderReceiver implements MessageListener {
MoteIF mote;
void run() {
mote = new MoteIF(PrintStreamMessenger.err);
mote.registerListener(new CtpDataHeader(), this);
}
synchronized public void messageReceived(int dest_addr, Message msg) {
//never called.
}
}
The *CtpDataHeader* class was created with MIG.
Any thoughts on what I am doing wrong?
Thanks a million,
Kevin Doran
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