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Expected Error on CC3100 for STA connect with wrong passphrase

David Switzer
Prodigy 30 points
Other Parts Discussed in Thread: CC3100, CC3100BOOST

Hi;

I am trying to implement the correct error handling in my firmware for cases where the upstream application provides an incorrect passphrase for sl_WlanConnect. What I am seeing using both the CC3100Boost on Windows and on the target custom device is that the CC3100 returns SL_DEVICE_FATAL_ERROR_EVENT with sender SL_ERR_SENDER_WILINK and error code -109 (SL_ERROR_CON_MGMT_STATUS_DISCONNECT_DURING_CONNECT). I would have expected SL_ERROR_CON_MGMT_STATUS_AUTH_REJECT passed to SimpleLinkWlanEventHandler. Also, when I try to reset the device with an sl_Stop()/sl_Start() sequence using a 5s timeout for sl_Stop(), the call to sl_Stop() never returns. What is the correct procedure from recovering from SL_DEVICE_FATAL_ERROR_EVENT?

  • 0
    TI__Mastermind 18455 points
    Hi David,

    As it states in its name, SL_DEVICE_FATAL_ERROR_EVENT is a fatal event, thus you can't relay on the CC3100 timers to work.
    In this case, you need to call to sl_Stop() without any timer setting.

    Can you please provide a bit more information on what is your exact use case and when do you see this event being triggered?
    Are you able to easily recreate this issue?

    Thanks,
    Alon
  • 0 in reply to Alon Srednizki
    TI__Mastermind 18455 points
    Hi David,

    I am closing the thread, if issue still exist please open a new thread and add a link to this one for reference.

    Thanks,
    Alon
  • 0 in reply to Alon Srednizki
    Prodigy 30 points

    Hi Alon;

    I cannot seem to successfully recover from the fatal error. In the getting started sample, I added the following code to the general event handler to handle the error:

    case SL_DEVICE_FATAL_ERROR_EVENT:
    printf("FATAL ERROR --- sender = %d, status = %d\r\n", pDevEvent->EventData.deviceEvent.sender,
    pDevEvent->EventData.deviceEvent.status);
    sl_Stop(0);
    sl_Start(0, NULL, 0);
    printf("Reset CC3100 successfully.\r\n");
    The event thread blocks in sl_Stop() and never returns. Please advise.
  • 0 in reply to Alon Srednizki
    Prodigy 30 points
    Alon, I am using the getting started with STA example application. Here is the welcome banner:

    Getting started with station application - Version 1.2.0

    All I have to do to trigger the event is provide the correct SSID name, the correct security type and ANY incorrect passphrase.