Hi,
I have a working scanner and manage to require timeslots with the below timings.
Interval 300ms, scan window 50ms, Timeslot length 10ms.
But when i try to request timeslot extensions as low as 1ms it never works.
nrf_radio_signal_callback_return_param_t * ts_radio_callback(uint8_t signal_type)
{
//NRF_LOG_DEBUG("TS_RADIO_CB:%d\r\n", signal_type);
switch(signal_type)
{
case NRF_RADIO_CALLBACK_SIGNAL_TYPE_START: {
//Start of the timeslot - set up timer interrupt
// Set up rescheduling
NRF_TIMER0->INTENSET = (1UL << TIMER_INTENSET_COMPARE0_Pos);
NRF_TIMER0->CC[0] = m_slot_length_us - SLOT_SANITY_END_US;
NVIC_EnableIRQ(TIMER0_IRQn);
on_ts_start();
signal_callback_return_param.params.request.p_next = NULL;
signal_callback_return_param.callback_action = NRF_RADIO_SIGNAL_CALLBACK_ACTION_NONE;
}
break;
case NRF_RADIO_CALLBACK_SIGNAL_TYPE_RADIO:
{
signal_callback_return_param.params.request.p_next = NULL;
signal_callback_return_param.callback_action = NRF_RADIO_SIGNAL_CALLBACK_ACTION_NONE;
on_radio_cb();
}
break;
case NRF_RADIO_CALLBACK_SIGNAL_TYPE_TIMER0:{
//Timer interrupt - attempt to increase timeslot length
if (NRF_TIMER0->EVENTS_COMPARE[0] == 1)
{
NRF_TIMER0->EVENTS_COMPARE[0] = 0;
signal_callback_return_param.params.extend.length_us = SLOT_EXTEND_US;
signal_callback_return_param.callback_action = NRF_RADIO_SIGNAL_CALLBACK_ACTION_EXTEND;
}
}
break;
case NRF_RADIO_CALLBACK_SIGNAL_TYPE_EXTEND_SUCCEEDED:
{
//Extension succeeded, reset timer(configurations still valid since slot length is the same)
NRF_TIMER0->CC[0] += SLOT_EXTEND_US;
}
break;
case NRF_RADIO_CALLBACK_SIGNAL_TYPE_EXTEND_FAILED:
{
//Extension failed, schedule new timeslot at earliest time
on_ts_stop();
configure_next_event_earliest();
signal_callback_return_param.params.request.p_next = &m_timeslot_request;
signal_callback_return_param.callback_action = NRF_RADIO_SIGNAL_CALLBACK_ACTION_REQUEST_AND_END;
}
break;
default:
//No implementation needed
break;
}
return (&signal_callback_return_param);
}
complete code here
Many thanks for your clue.
Seb
