current consumption of nRF52 DK

[ALE]

Hi, I want to reduce the current both in the TX mode and in the system on idle mode as much as possible. I measured the current consumption of nRF52DK with the original code of "nRF5_SDK_13.0.0_04a0bfd\examples\ble_peripheral\ble_app_beacon ". THe results is that the current in the system on idle mode is 2.1uA and the peak current in the TX mode is 12.5mA. I asked a similar question in devzone.nordicsemi.com/.../ I tried to revise the code in the last two paragraphs of main.c "static void power_manage(void) { ret_code_t err_code = sd_app_evt_wait(); APP_ERROR_CHECK(err_code); }"

to the following code: "static void power_manage(void) { ret_code_t err_code = sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE); APP_ERROR_CHECK(err_code); }"

And the results is that the current in the system on idle mode is 5mA and the peak current in the TX mode is 17.5mA.

Would you please tell me how to revise the code so that I can get the results of a 1.6uA in the system on idle mode and a 7.5mA in the TX mode?

Best regards, waiting for your answer Thanks in advance

[Sigurd]

Hi,

Try something like this:

int main(void)
{
    // Initialize.
    log_init();
    timers_init();
    leds_init();
    ble_stack_init();
    sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE);
    advertising_init();
    advertising_start();
    
    
    

    // Start execution.
    NRF_LOG_INFO("Beacon example started.\r\n");

    // Enter main loop.
    for (;; )
    {
        if (NRF_LOG_PROCESS() == false)
        {
            power_manage();
        }
    }
}

[butch]

Are you following this tutorial to measure current? devzone.nordicsemi.com/.../

[ALE]

Thank you very much. It really helps.