Hui,
Thanks for your answer.
So I call the MacControl.enableAck() to enable ACK mode. But from the
sending mode, how do I check if the packet has been sent successfully ? Like
you said, sendDone is called after the packet is placed in the queue, not after
ACK is received.
I am sorry but I am completely new to TinyOS. I would appreciate it if you
could give me detailed instructions.
Thanks again,
Heo
Hui KANG <[EMAIL PROTECTED]> wrote:
The sendDone function only indicates that the message is put into the
send stack, which done not necessarily mean that the message is received
by the other node.
I think you should use MacControl.enableAck to receive the
acknowledgement.
Regards,
Hui
On 1/9/2007, "Heo Heo" wrote:
> I was trying to use interface SendMsg of GenericComm to send a message (based
> on the Oscilloscope example). This interface provides 2 functions:
>
> - send(Destination, Size, Msg);
> - sendDone(TOS_MsgPtr sent, result_t success)
>
> I thought I would be able to check if the packet has been sent successfully
> by looking at the "success" field of sendDone. However, when I test it by
> having a mote UNICAST to a different one (which I intentionally turned OFF),
> it surprises me that sendDone always provides me a success that equals
> SUCCESS. By saying UNICAST, I meant I put the address of the other mote as
> destination address, instead of using TOS_BCAST_ADDR.
>
> So, what is wrong with this, and what is the best way to check if a message
> has been successfully sent or not.
>
> Thanks a lot for any help.
> Heo
>
>
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