Tmote uses a subset of the IEEE 802.15.4 MAC protocol standard and the
complete IEEE 802.15.4 PHY protocol standard.
Best,
-Joe
On 11/24/06, KANG HUI <[EMAIL PROTECTED]> wrote:
Hi, Dr.
I read the paper about SP. In the paper, you said the Mac protocal
experimented on Telos is 802.15.4. But in tmote, it used b-mac without
LPL. Where can I find the code for 802.15.4?
Regards,
Hui
On Fri, 24 Nov 2006, Joe Polastre wrote:
> As per the previous emails,
>
> Set the reliability control flag, and if the message is acknowledged
> by the receiver, the reliability feedback flag will be set. If you do
> not set the reliability control flag, no acknowledgement will be
> requested.
>
> You cannot attach data on the acknowledgement packet, it uses the
> fixed IEEE 802.15.4 standard format.
>
> -Joe
>
> ps: Please cc tinyos-help@millennium.berkeley.edu so others can
> benefit from your questions.
>
> On 11/24/06, Ee Foong Lee <[EMAIL PROTECTED]> wrote:
> > Hi Joe,
> >
> > Thank you. I've solved the problem. I guess my next question is how do I
> > enable or disable acknowledgement. My application need to be able to turn on
> > and off the acknowledgement control at some point. Also, how do the receiver
> > send an acknowledgement back to sender since I need to attach some data on
> > the acknowledgement packet?
> >
> > Thank you.
> >
> > Andre
> >
> >
> >
> > On 11/24/06, Joe Polastre <[EMAIL PROTECTED]> wrote:
> > > 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
> > > > > >
> > > > > > ________________________________
> > > > > > We have the perfect Group for you. Check out the handy changes to
> > Yahoo!
> > > > > > Groups.
> > > > > >
> > > > > >
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> > > > > >
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> > > > > >
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> > > >
> > >
> >
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