eliminate the use of joystick for configuring coordinator and end device in the example program of TIMAC

Hi Pratap, 

I will try to give you few pointer which you could use to achieve the requirements:

On the device which you want to always configure as the coordinator 

In the function MSA_Init() at the end add the call to the function - which will start the device as a coordinator. 

MSA_CoordinatorStartup();

You can chose a more detailed approach for ex-, where you can first start an active scan to collect the beacons and for each MAC_MLME_BEACON_NOTIFY_IND you will check if the PANID of network around you is not the same as the one you are trying to select, etc. 

Now, on the device which you want to always configure as the end device 

In the function MSA_Init() at the end add the call to the function - which will start the network discovery 

/* Start the device as a direct message device and beacon disabled*/
if (!msa_IsStarted)
{
/* Decide if direct or indirect messaging is used */
msa_IsDirectMsg = MSA_DIRECT_MSG_ENABLED;

if (msa_IsDirectMsg)
{
/* Start the device as an DIRECT messaging device */
if (msa_BeaconOrder != 15)
MSA_ScanReq(MAC_SCAN_PASSIVE, MSA_MAC_BEACON_ORDER + 1);
else
MSA_ScanReq(MAC_SCAN_ACTIVE, 3);
}
else
{
/* Start the device as an INDIRECT messaging device and beacon disabled */
/* Beacon network doesn't work with polling */
if (!msa_IsStarted)
{
msa_IsDirectMsg = FALSE;
MSA_ScanReq(MAC_SCAN_ACTIVE, 3);
}
}
}

And in case the coordinator was not started, to avoid this device becoming the coordinator (which the sample application would do) you would need to change the code at 

ase MAC_MLME_SCAN_CNF:
/* Check if there is any Coordinator out there */
pData = (macCbackEvent_t *) pMsg;

/* If there is no other on the channel or no other with sampleBeacon start as coordinator */
if (((pData->scanCnf.resultListSize == 0) && (pData->scanCnf.hdr.status == MAC_NO_BEACON)) || (!msa_IsSampleBeacon))
{
 // MSA_CoordinatorStartup();  --> Comment this line and you can try to start the network discovery again, etc
}
else if ((msa_IsSampleBeacon) && pData->scanCnf.hdr.status == MAC_SUCCESS)
{
/* Start the devive up as beacon enabled or not */
MSA_DeviceStartup();

/* Call Associate Req */
MSA_AssociateReq();
}
break;

Hope this helps. 

Regards