CC2650: BLE Observer+Peripheral Application

Thanks Marie for the response. Appreciate the effort.

Yes I saw that document and read it.
Upon Button press "GAPObserverRole_StartDiscovery" will be called and start discovering the nearby BLEs.

My custom board doesn't have any button or any kind of user input mechanisms. In this scenario how can I initiate "GAPObserverRole_StartDiscovery" call?

I already tried with a timer by calling "GAPObserverRole_StartDiscovery" call from timer handler, but its not working.
Not working in the sense, I am not getting any hit under "GAP_DEVICE_INFO_EVENT" and there is plenty of BLE broadcasters at my work place.

Help me find a way to call "GAPObserverRole_StartDiscovery" to initiate observer code without disturbing the overall code flow.

Hi Danish,

A timer sounds like a goo idea. Are you sure GAPObserverRole_StartDiscovery() is called?

Hi Marie,

Yes I did. I will try it again.

static void scan_timer_callback(UArg arg)
{
GAPObserverRole_StartDiscovery(DEFAULT_DISCOVERY_MODE,
DEFAULT_DISCOVERY_ACTIVE_SCAN,
DEFAULT_DISCOVERY_WHITE_LIST);
}

This is my timer callback function.

Can you suggest any alternatives.

Thanks,
Danish

Hi Danish,

Can you enable active scan, and use a sniffer to see if your device is sending out scan request packets?

Hi Marie,

I haven't found the exact solution, that I was looking for.

But I found that, calling "GAPObserverRole_StartDiscovery" from a different thread such as, a timer callback or a new task is doesn't seem to be working.

Then I called the "GAPObserverRole_StartDiscovery" from the same thread and it is start working. Please see the code below.

      // If RTOS queue is not empty, process app message.
      while (!Queue_empty(appMsgQueue))
      {
        sbpEvt_t *pMsg = (sbpEvt_t *)Util_dequeueMsg(appMsgQueue);
        if (pMsg)
        {
          // Process message.
          SimpleBLEPeripheral_processAppMsg(pMsg);

#ifndef DISCOVERY_TASK
          GAPObserverRole_StartDiscovery(DEFAULT_DISCOVERY_MODE,
                                        DEFAULT_DISCOVERY_ACTIVE_SCAN,
                                        DEFAULT_DISCOVERY_WHITE_LIST);
#endif
          // Free the space from the message.
          ICall_free(pMsg);
        }
      }

Not quite sure about the stability of this work around.

PS: we don't have a sniffer setup at our work place to monitor the scanning as you mentioned in the previous responses. 

Thanks and Regards,

Danish

Hi Danish,

The observer task is not designed for being called from any other task than the application task. However, a timer within this task should have no issue with calling GAPObserverRole_StartDiscovery().