Can you check if you are receiving the proper bytes corresponding to
the message on the PC side using seriallisten or serialforwarder and
sflisten? If you are receiving proper bytes, the problem is in your Java
code. Otherwise, the problem might be on the mote side.
- om_p
On Sat, Sep 1, 2012 at 6:11 PM, kevin doran <k.a.dor...@gmail.com> wrote:
> 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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