Manual energy level scan

Felix Bruckmüller

Other Parts Discussed in Thread: PMP

Hi,

I am currently using zStack 2.5.0, HOLD_AUTO_START and start the network manualy after some configuration work is done on the device over UART.

Now I want to scan all available channels for their energy level for diagnostic reasons (does the RF part work properly after manufacturing). Currently I am using NLME_EDScanRequest(MAX_CHANNELS_24GHZ, 0x0E) and extrect the needed information from ZDNwkMgr_ProcessEDScanConfirm.

Calling EDScanRequest(MAX_CHANNELS_24GHZ, 0x0E) when the network is already started generates a response and in ZDNwkMgr_ProcessEDScanConfirm pEDScanConfirm->energyDetectList is 0 for every field and pEDScanConfirm->status is 0xFC. I was not able to find the meaning of this error code, so I hope you can help me out.

Is there an other (better) way to do an energy level scan and is there a way to do an energy level scan before network start?

Thanks

Felix

over 14 years ago

0 LAKSHMANAN KUMAR RANGARAJ over 14 years ago

Expert 1795 points

Hi,

You can use uint8 retValue = (uint8) ZDP_MgmtNwkUpdateReq( &destAddr, MAX_CHANNELS_24GHZ, _NIB.scanDuration,
1, _NIB.nwkUpdateId+1,nwkManagerAddr);//nwkManagerAddr

in the call back function call

void xx_ProcessZDOMsgs( zdoIncomingMsg_t *inMsg )
{

case Mgmt_NWK_Update_notify:
    {
        // if(Nwk_EDScan_flg)
            ATCommand_EDScanValueCB(inMsg,buf);
    }
    break;

}

Thanks and Regards

Lakshman,PMP

0 Felix Bruckmüller over 14 years ago in reply to LAKSHMANAN KUMAR RANGARAJ

Intellectual 835 points

Hi,

sorry for my late reply.

Your method would work when the device is connected to an network or has started its own network, but I want to do an energy level scan before starting/joining a network.

Calling NLME_EDScanRequest() always gives back a failure without connection to a network.

Does someone know a solution to do so?

Thanks

Felix

0 Suyash Jain over 14 years ago in reply to Felix Bruckmüller

TI__Genius 10650 points

Hello Felix,

I see that, Status 0xFC suggests that the MAC scan is already in progress. It is defined in one of the Source files. Can you try delaying your call to this function for channel scan. Please let me know if this works for you.

Regards,

Suyash Jain

0 Ilya Averin over 14 years ago

Expert 1815 points

Hi Felix,

The simpler way to check hardware is to use Smart RF Studio. The way you propose seems quite complex.

0 Felix Bruckmüller over 14 years ago in reply to Suyash Jain

Intellectual 835 points

Hello Suyash,

thank your for your answer, it solved a problem I ran into after energy level scan was working.

The original problem was, that neigther ZIGBEE_FREQ_AGILITY nor ZIGBEE_PANID_CONFLICT was defined and so the Network Manager Task wasn't initialised and therefore energy level scan wasn't working properly.

Regards,

Felix

0 LAKSHMANAN KUMAR RANGARAJ over 14 years ago in reply to Felix Bruckmüller

Expert 1795 points

Hi Felix,

Will you please share the piece of code how you solved the issue ?

Thanks and Regards

Lakshman,PMP

0 Felix Bruckmüller over 14 years ago in reply to LAKSHMANAN KUMAR RANGARAJ

Intellectual 835 points

Hi,

I added ZIGBEE_FREQ_AGILITY and ZIGBEE_PANID_CONFLICT as preprocessor symboles.

Then I'm calling NLME_EDScanRequest(MAX_CHANNELS_24GHZ, 0x04)

I process the results at the start of the existing function

static void ZDNwkMgr_ProcessEDScanConfirm( ZDNwkMgr_EDScanConfirm_t *pEDScanConfirm )

(in ZDNwkMgr.c)

I hope this helps

Felix

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Manual energy level scan