Sometimes receiving the packages I am sending over ESB

RE: Sometimes receiving the packages I am sending over ESB

bjorn-spockeli — Tue, 24 Mar 2020 12:34:34 GMT

Have you checked that the RX payload is identical to the TX payload that was last transmitted?

Which base addresses and addr prefix are you using? Would it be possible for you to share the project? Then I could run it here on a nRF52 DK and see if I can reproduce the behavior?

RE: Sometimes receiving the packages I am sending over ESB

martijnschouten — Tue, 24 Mar 2020 10:54:43 GMT

yes, my I initialise the esb primary transmitter using the following function:

ret_code_t tmsi_esb_ptx_init(void (*esb_ptx_rx_received)(nrf_esb_payload_t *rx_payload), void (* esb_ptx_tx_succes)(), void (* esb_ptx_tx_failed)()){
    tmsi_esb_ptx_rx_received = esb_ptx_rx_received;
    tmsi_esb_ptx_tx_succes = esb_ptx_tx_succes;
    tmsi_esb_ptx_tx_failed = esb_ptx_tx_failed;

    NRF_CLOCK->EVENTS_HFCLKSTARTED = 0;
    NRF_CLOCK->TASKS_HFCLKSTART = 1;

    while (NRF_CLOCK->EVENTS_HFCLKSTARTED == 0);

    uint32_t err_code;

    
    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       = false;
    nrf_esb_config.payload_length           = 252;
    nrf_esb_config.retransmit_count         = ESB_RETRANSMITS;
    
    tmsi_esb_set_tx_power(ESB_TX_POWER,0);

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

    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);

    err_code = tmsi_esb_set_rf_channel(ESB_RF_CHANNEL);
    VERIFY_SUCCESS(err_code);

    err_code = nrf_esb_set_prefixes(addr_prefix, NRF_ESB_PIPE_COUNT);
    VERIFY_SUCCESS(err_code);
    
    return err_code;
}

RE: Sometimes receiving the packages I am sending over ESB

bjorn-spockeli — Tue, 24 Mar 2020 10:26:16 GMT

Ok, could you post your esb configuration, i.e. the esb_init function?

uint32_t esb_init( void )
{
    uint32_t err_code;
    uint8_t base_addr_0[4] = {0xE7, 0xE7, 0xE7, 0xE7};
    uint8_t base_addr_1[4] = {0xC2, 0xC2, 0xC2, 0xC2};
    uint8_t addr_prefix[8] = {0xE7, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8 };

#ifndef NRF_ESB_LEGACY
    nrf_esb_config_t nrf_esb_config         = NRF_ESB_DEFAULT_CONFIG;
#else // NRF_ESB_LEGACY
    nrf_esb_config_t nrf_esb_config         = NRF_ESB_LEGACY_CONFIG;
#endif // NRF_ESB_LEGACY
    nrf_esb_config.retransmit_count         = 6;
    nrf_esb_config.selective_auto_ack       = false;
    nrf_esb_config.protocol                 = NRF_ESB_PROTOCOL_ESB_DPL;
    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;

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

    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);

    err_code = nrf_esb_set_prefixes(addr_prefix, 8);
    VERIFY_SUCCESS(err_code);

    tx_payload.length  = 3;
    tx_payload.pipe    = 0;
    tx_payload.data[0] = 0x00;

    return NRF_SUCCESS;
}

RE: Sometimes receiving the packages I am sending over ESB

martijnschouten — Fri, 20 Mar 2020 18:15:58 GMT

Hi Bjorn,

Yes, that is correct.

Best regards,

Martijn

RE: Sometimes receiving the packages I am sending over ESB

bjorn-spockeli — Fri, 20 Mar 2020 12:58:49 GMT

Hi Martijn,

So if I understand correctly, you get a NRF_ESB_EVENT_RX_RECEIVED after sending 180 ping messages eventhough the receiving device is not powered?

Best regards

Bjørn