Timeslot extension

[Tong Yu]

Hello all,

After several tests about extending Timeslot, I have some questions.

1. I found out that the Timeslot will keep extending automatically after a successful extension, right?

2. If I am right about the first question, then about the extension length, in my code, extend.length_us = 200, and the "callback_action" will be set to "NRF_RADIO_SIGNAL_CALLBACK_ACTION_END" if the total length above 120,000,000 us, so that the Timeslot will end rather than exceed the 128s limit and extend failed.
   I used the "NRF_LOG_INFO" printed the result:
   :INFO:NRF_EVT_RADIO_SESSION_IDLE
   :INFO:NRF_EVT_RADIO_SESSION_CLOSED
   :INFO: extend_success_count = 600000
   :INFO: extend_fail_count = 0

    case NRF_RADIO_CALLBACK_SIGNAL_TYPE_EXTEND_SUCCEEDED: 
   
        if(total_timeslot_length >= 120000000)
        {
            signal_callback_return_param.callback_action = NRF_RADIO_SIGNAL_CALLBACK_ACTION_END;
        }else
        {
        total_timeslot_length += 200;
        extend_success_count++;
        }
   
        break;
   
    case NRF_RADIO_CALLBACK_SIGNAL_TYPE_EXTEND_FAILED: 
   
        fail_count++;
   
        break;
   

Also in Timeslot event handler:

    case NRF_EVT_RADIO_SESSION_IDLE:
        
        sd_radio_session_close();
        NRF_LOG_INFO("NRF_EVT_RADIO_SESSION_IDLE\r\n");

        break;

    case NRF_EVT_RADIO_SESSION_CLOSED: 
        
        NRF_LOG_INFO("NRF_EVT_RADIO_SESSION_CLOSED\r\n");
        NRF_LOG_INFO(" extend_success_count            = %d\r\n", extend_success_count);
        NRF_LOG_INFO(" extend_fail_count               = %d\r\n", fail_count);

        break;

But the problem is: the real time about the extension was far less that 120 seconds, only few seconds and as I increase the "extend_length", the real time get even shorter, so where is the problem?

Many thanks!

[Tong Yu]

Thanks, but I don't think I got any extension failed signal, because I kept counting all the time, if there is any failure, the "fail_count" shouldn't be 0.