How to turn radio off in proprietary mode (nrf_esb)?

RE: How to turn radio off in proprietary mode (nrf_esb)?

Athos — Tue, 11 Sep 2018 21:58:35 GMT

hi everybody,

i don't understand how to fit it in my programm.

I have a time base made by Timer, and the programm RX mode switching between on and off(low power mode).

I'm not able to turn it off.

          handler time base called by the timer: 
           
            on(LED);
			rf_proprietary_rx_start(); // nrf_esb_start_rx();
			while(rf_proprietary_rx_get_counter() != 0);
			rf_proprietary_rx_stop(); // nrf_esb_stop_rx();
			off(LED);

It does not work right.

Thanks

RE: How to turn radio off in proprietary mode (nrf_esb)?

Kenneth — Mon, 10 Sep 2018 15:03:59 GMT

Hi,

You may try to power cycle the radio peripheral, e.g.:

        nrf_esb_disable();
        
        // Power cycle the radio perpipheral
        *(volatile uint32_t *)0x40001FFC = 0;
        *(volatile uint32_t *)0x40001FFC;
        *(volatile uint32_t *)0x40001FFC = 1;
        
        err_code = esb_init();
        APP_ERROR_CHECK(err_code);

That seems to work without any problems here placed in the while(1) loop in main() in \examples\proprietary_rf\esb_ptx

I highly recommend using 16bit CRC.

Best regards,
Kenneth

RE: How to turn radio off in proprietary mode (nrf_esb)?

Vladimir Aparin — Fri, 07 Sep 2018 10:45:14 GMT

There are our init function.

uint32_t esb_init( void )
{
    uint32_t err_code;
    
    uint8_t base_addr_0[4] = {0xE7, 0xE7, 0xE7, 0xEF};
    uint8_t base_addr_1[4] = {0xA1, 0xA2, 0xA3, 0xA4};
    uint8_t addr_prefix[8] = {0xE0, 0xA0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE0 };
    
    nrf_esb_config_t nrf_esb_config         = NRF_ESB_DEFAULT_CONFIG;
     
        
    nrf_esb_config.protocol=                NRF_ESB_PROTOCOL_ESB_DPL;
    nrf_esb_config.retransmit_delay=        600;
    nrf_esb_config.bitrate=                 NRF_ESB_BITRATE_2MBPS;
    nrf_esb_config.event_handler=           nrf_esb_event_handler;
    nrf_esb_config.mode=                    NRF_ESB_MODE_PTX;
    nrf_esb_config.selective_auto_ack=      1;
    nrf_esb_config.payload_length=          4;
    nrf_esb_config.retransmit_count=        3;
    nrf_esb_config.crc=                     NRF_ESB_CRC_8BIT;
    nrf_esb_config.tx_mode=                 NRF_ESB_TXMODE_MANUAL;

    err_code = nrf_esb_init(&nrf_esb_config);
    VERIFY_SUCCESS(err_code);

    nrf_esb_enable_pipes(3);
    
    err_code = nrf_esb_set_base_address_0(base_addr_0);
    VERIFY_SUCCESS(err_code);

    err_code = nrf_esb_set_base_address_1(base_addr_1);
    VERIFY_SUCCESS(err_code);
    if(addr_prefix[0])
        __NOP();
    err_code = nrf_esb_set_prefixes(addr_prefix, 4); // This function configures the number of available pipes, enables the pipes, and sets their prefix addresses.
    VERIFY_SUCCESS(err_code);
    
    nrf_esb_update_prefix(0, 0xE0);
    
    err_code = nrf_esb_set_rf_channel(1);
    VERIFY_SUCCESS(err_code);

    return err_code;
}

RE: How to turn radio off in proprietary mode (nrf_esb)?

Vladimir Aparin — Fri, 07 Sep 2018 09:31:32 GMT

Update:

We trying to turn radio off by nrf_esb_disable(). Now we can't reinitilaze the radio by nrf_esb_init().