[Tinyos-help] Automatic TX Power Setting

[Ittipong Khemapech]

Hi Janos,

Finally, I did it. Many thanks for your suggestions.

Ittipong

On 11/03/2008, Ittipong Khemapech <ik.tinyos at googlemail.com> wrote:
>
> Hi Janos,
>
> Thanks for your reply. I'll try it.
>
> Ittipong
>
> On 11/03/2008, Janos Sallai <sallai at isis.vanderbilt.edu> wrote:
> >
> >  Ittipong,
> >
> >
> >
> > You will need to refactor your code such that you catch the sendDone
> > event after sending each message, and send the next one only after that.
> >
> >
> >
> > Janos
> >
> >
> >
> > *From:* tinyos-help-bounces at millennium.berkeley.edu [mailto:
> > tinyos-help-bounces at millennium.berkeley.edu] *On Behalf Of *Ittipong
> > Khemapech
> > *Sent:* Tuesday, March 11, 2008 11:00 AM
> > *To:* tinyos-help
> > *Subject:* [Tinyos-help] Automatic TX Power Setting
> >
> >
> >
> > Hi,
> >
> > I am working on automatic TX power setting. I have the following codes:
> >
> > implementation {
> >    message_t pkt;
> >    bool busy = FALSE;               // Used to check if mote is still
> > busy sending
> >    uint16_t sentpkts = 0;           // Number of sent packets
> >    uint8_t current_tx;                // Used to adapt transmission
> > power, start with the minimum level
> >    uint8_t i;                              // Used to count number of
> > transmissions
> >
> > .......
> >
> >    event void MetricsSendTimer.fired() {
> >
> >        if (!busy) {
> >
> >            MetricsMsg* metricsMsg = (MetricsMsg*)(call Packet.getPayload(&pkt,
> > NULL));
> >            // Allowable tx power levels are 3, 7, 11, 15, 19, 23, 27 and
> > 31
> >            for (current_tx = 3; current_tx <= 31; current_tx += 4) {
> >
> >                // Mote sends 20 times for each tx power level
> >                for (i = 1; i <= 20; i++) {
> >
> >                    call CC2420Packet.setPower(&pkt, current_tx);
> >                    current_tx = call CC2420Packet.getPower(&pkt);
> >
> >                    // Write current tx and no of sent pkts to the
> > payload
> >                    metricsMsg->txpower = current_tx;
> >                    metricsMsg->pkt_no = sentpkts;
> >                    metricsMsg->run_no = i;
> >
> >                    if (call AMSend.send(AM_BROADCAST_ADDR, &pkt,
> > sizeof(MetricsMsg)) == SUCCESS) {
> >                        busy = TRUE;
> >
> >                    }
> >
> >                }
> >
> >            }
> >        }
> >    }
> >
> > .......
> > }
> >
> > I've run Listen (with BaseStation) and got i = 1 and current_tx = 3 all
> > the time. They weren't increased.
> >
> > I have been stuck for a day. Please help.
> >
> > Thanks,
> > Ittipong
> >
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.millennium.berkeley.edu/pipermail/tinyos-help/attachments/20080313/633d7667/attachment.html