Test the feedback flag SP_FLAG_F_RELIABLE, *not* the control flag
SP_FLAG_C_RELIABLE. See the documentation for more information in
/opt/moteiv/doc/nesdoc.
Acks will only be used for unicast destinations (ie, 1, 2, 3...)
-Joe
On 11/23/06, Ee Foong Lee <[EMAIL PROTECTED]> wrote:
Hi,
When i used sendAdv to send packets to receiver and i set the flag in
sendAdv to SP_FLAG_C_RELIABLE to acknowledge each packet.
Then, during each sendDone, i tested the flag in the sendDone to see if it
equal to SP_FLAG_C_RELIABLE. But the flag depends on
how you specify the destination address in sendAdv. If i use some specific
address (eg. 1, 2, ...), then the flag will not be set,
but if i use TOS_BCAST_ADDR as the destination address, then the flag is
set. How come?How can I send to a specific address with
the flag get set?
Thank you.
Andre
On 11/3/06, Joe Polastre <[EMAIL PROTECTED]> wrote:
> Using SP, you want to request reliability.
>
> See the SPSend.sendAdv() function definition in /opt/moteiv/doc/nesdoc
> (start by opening index.html and navigating in the left frame). An
> example using reliability is in /opt/moteiv/tos/lib/MultiHopLQI
>
> -Joe
>
> On 11/2/06, Lee Ee Foong < [EMAIL PROTECTED]> wrote:
> > I'm trying to test the ack in the sendDone( ) but the ack field always
set
> > to zero. I call MacControl.enableACK( ) in the StdControl.start( ). Is
> > there something that I did wrong or missing?
> >
> > I wired the components as following:
> >
> > Main.StdControl -> CC2420RadioC;
> > MultiHopEngineM.MacControl -> CC2420RadioC;
> >
> > command result_t StdControl.start()
> > {
> > call MacControl.enableAck();
> > return SUCCESS;
> > }
> >
> >
> > event result_t SendMsg.sendDone[uint8_t id](TOS_MsgPtr pMsg, result_t
> > success)
> > {
> > dbg(DBG_TEMP, "ack is %d \n", pMsg->ack);
> >
> > if (pMsg->ack == 1)
> > call Leds.redToggle();
> > else
> > call Leds.greenToggle();
> >
> > return SUCCESS;
> > }
> >
> >
> >
> > Thank you.
> >
> > Andre
> >
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