Multiprotocol and radio RXIDLE state

RE: Multiprotocol and radio RXIDLE state

chinargor — Thu, 25 Jun 2015 12:51:19 GMT

The problem Is solved. One need to reset all states in the radio peripheral at first. By setting

NRF_RADIO->POWER = 1

RE: Multiprotocol and radio RXIDLE state

chinargor — Wed, 24 Jun 2015 12:34:43 GMT

For the rest of the code I'm using exactly ble_app_hrs_with_timeslot.zip this example code. I changed the timeslot time, but seems it's not the reason. Thanks in advance for your help.

RE: Multiprotocol and radio RXIDLE state

chinargor — Wed, 24 Jun 2015 12:25:57 GMT

nrf_radio_signal_callback_return_param_t * m_radio_callback(uint8_t signal_type)

{   

		switch(signal_type)
    {
        case NRF_RADIO_CALLBACK_SIGNAL_TYPE_START:
						start_timer();
						radio_configure(); // general radio configuration from radio_config.c
						/* Enable interrupt on events */
						NRF_RADIO->INTENSET = RADIO_INTENSET_ADDRESS_Msk | RADIO_INTENSET_DISABLED_Msk | RADIO_INTENSET_READY_Msk;
						/* Enable RADIO interrupts */
						NVIC_ClearPendingIRQ(RADIO_IRQn);
						NVIC_EnableIRQ(RADIO_IRQn);
					
						NRF_RADIO->PACKETPTR = (uint32_t)&packet;
						
						read_packet();
											
						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_TIMER0:
						m_configure_normal_timeslot();
						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;  //End the current timeslot and request a new one
						nrf_gpio_pin_toggle(LED_2);
						NRF_TIMER0->TASKS_STOP = 1;
						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;
						// not Implemented yet, Because never reaches to this brench
						break;
		}
		return (&signal_callback_return_param);

}

RE: Multiprotocol and radio RXIDLE state

chinargor — Wed, 24 Jun 2015 12:24:30 GMT

void read_packet(void)

{


   NRF_RADIO->EVENTS_READY = 0U;

    // Enable radio and wait for ready

    NRF_RADIO->TASKS_RXEN = 1U;

    while (NRF_RADIO->EVENTS_READY == 0U)

    {

        // wait

    }

    NRF_RADIO->EVENTS_END = 0U;
    // Start listening and wait for address received event
    NRF_RADIO->TASKS_START = 1U;

    // Wait for end of packet or buttons state changed
    while (NRF_RADIO->EVENTS_END == 0U)

    {

        // wait

    }


    NRF_RADIO->EVENTS_DISABLED = 0U;
    // Disable radio
    NRF_RADIO->TASKS_DISABLE = 1U;

    while (NRF_RADIO->EVENTS_DISABLED == 0U)
    {
        // wait
    }
}

RE: Multiprotocol and radio RXIDLE state

chinargor — Wed, 24 Jun 2015 12:21:51 GMT

Hi,

Thanks for your response, Please find source code bellow.

void m_configure_earliest_timeslot(void)

{

    m_timeslot_request.request_type                = NRF_RADIO_REQ_TYPE_EARLIEST;
    m_timeslot_request.params.earliest.hfclk       = NRF_RADIO_HFCLK_CFG_DEFAULT;
    m_timeslot_request.params.earliest.priority    = NRF_RADIO_PRIORITY_HIGH;
    m_timeslot_request.params.earliest.length_us   = 50000; 
    m_timeslot_request.params.earliest.timeout_us  = 1000000;
}


void m_configure_normal_timeslot(void)

{

    m_timeslot_request.request_type                = NRF_RADIO_REQ_TYPE_NORMAL;
    m_timeslot_request.params.normal.hfclk         = NRF_RADIO_HFCLK_CFG_DEFAULT;
    m_timeslot_request.params.normal.priority      = NRF_RADIO_PRIORITY_HIGH;
    m_timeslot_request.params.normal.length_us     = 50000; 
    m_timeslot_request.params.normal.distance_us   = 1000000;

}

RE: Multiprotocol and radio RXIDLE state

Øyvind Karlsen — Wed, 24 Jun 2015 11:54:56 GMT

Hi,

It might be that you have requested a timeslot that is too short, so that your application will not have time to finish. Could you post the configuration of the radio and the timeslot setup?

RE: Multiprotocol and radio RXIDLE state

chinargor — Wed, 24 Jun 2015 11:10:16 GMT

Hi Øyvind, Thanks for you response and advice. But my problem is that I'm not getting out of the while(NRF_RADIO->EVENTS_READY == 0U) {} loop. It seems that it never become 1U. If I understand timslots currectly, I assume my program should work in a following way. In one timeslot the m_radio_callback function should be called 3 times. First NRF_RADIO_CALLBACK_SIGNAL_TYPE_START Indicate start of the timeslot and wait for the interrupt, than radio interrupt should occur and it should go NRF_RADIO_CALLBACK_SIGNAL_TYPE_RADIO case statement and wait for the packages and when the timeslot time is done, timer interrupt should occur and NRF_RADIO_CALLBACK_SIGNAL_TYPE_TIMER0 brench should execute and request a new timeslot. My problem is that I'm not getting NRF_RADIO->EVENTS_READY. Please correct me if I'm thinking wrong way. Thanks again for your help.

RE: Multiprotocol and radio RXIDLE state

Øyvind Karlsen — Wed, 24 Jun 2015 09:24:50 GMT

Hi Gor,

For these things it is a good idea to debug using printf statements, as the SoftDevice may cause hanging when you step or stop the debugger.

Note that if you want to recieve a packet you will want to do this as well after getting NRF_RADIO->EVENTS_READY:

    NRF_RADIO->EVENTS_READY = 0U;
    // Enable radio and wait for ready
    NRF_RADIO->TASKS_RXEN = 1U;

    while (NRF_RADIO->EVENTS_READY == 0U)
    {
        // wait
    }
    NRF_RADIO->EVENTS_END = 0U;
    // Start listening and wait for address received event
    NRF_RADIO->TASKS_START = 1U;

    // Wait for end of packet or buttons state changed
    while (NRF_RADIO->EVENTS_END == 0U)
    {
        // wait
    }

    if (NRF_RADIO->CRCSTATUS == 1U)
    {
        result = packet;
    }
    NRF_RADIO->EVENTS_DISABLED = 0U;
    // Disable radio
    NRF_RADIO->TASKS_DISABLE = 1U;

    while (NRF_RADIO->EVENTS_DISABLED == 0U)
    {
        // wait
    }

Best regards,

Øyvind