nRF 802.15.4 Stack API: mlme_scan_req() does not call the callback function

[Canberk]

Hello,

I am trying to setup a PAN coordinator by following these steps:

1. mlme_reset_req() -> successfully responds with a mlme_reset_conf_t by calling the callback function.

2. Set macShortAddress,  macAssociationPermit and macRxOnWhenIdle attributes using the mlme_set() function. They all are successfully set.

3. mlme_start_req() -> nothing happens. It does not throw any errors and does not invoke the callback.

Here is the code for starting up the Wpan:

static void SetupSeqStartWpan()
{
  waiting_response = true;

  static mlme_start_req_t mlme_start_req_container = 
  {
    .pan_id = 0x1234,
    .logical_channel = 13,
    .beacon_order = 15, // nonbeacon-enabled network
    .pan_coordinator = true,
  };

  mlme_start_req(&mlme_start_req_container, SetupSeqStartWpanCb);
}

static void SetupSeqStartWpanCb(mlme_start_conf_t * response)
{
  waiting_response = false;

  if(response->status != MAC_SUCCESS)
  {
    rfhandler_setup_state = SETUP_SEQ_RESET_MLME;
    return;
  }
}

It never calls the SetupSeqStartWpanCb() function after the mlme_start_req() command is issued. 

[Jørgen Holmefjord]

Hi,

Have you debugged the application to make sure there is no hardfault, etc? Can you share a full project that can be used to reproduce this issue?

Best regards,
Jørgen

[Canberk]

Yes I have debugged it and there was no hardfault, assertion etc. 

I have figured out the problem. Changing the MLME-RESET code from this:

static mlme_reset_req_t * mlme_reset_req_container;

static void SetupSeqResetMlme()
{
  waiting_response = true;
  
  mlme_reset_req_container = (mlme_reset_req_t*)sys_mm_alloc( sizeof(mlme_reset_req_t) );

  mlme_reset_req_container->set_default_pib = true;

  mlme_reset_req(mlme_reset_req_container, SetupSeqResetMlmeCb);
}

static void SetupSeqResetMlmeCb(mlme_reset_conf_t * response)
{
  sys_mm_free(mlme_reset_req_container);
  waiting_response = false;

  if(response->status == MAC_SUCCESS)
  {
    rfhandler_setup_state++;
  }
}

to this:

static void SetupSeqResetMlme()
{
  waiting_response = true;

  static mlme_reset_req_t mlme_reset_req_container =
  {
    .set_default_pib = true
  };

  mlme_reset_req(&mlme_reset_req_container, SetupSeqResetMlmeCb);
}

static void SetupSeqResetMlmeCb(mlme_reset_conf_t * response)
{
  waiting_response = false;

  if(response->status == MAC_SUCCESS)
  {
    rfhandler_setup_state++;
  }
}

somehow fixed the issue even though the MLME-RESET.conf callback was reporting MAC_SUCCESS.