nRF52 Thingy with power profile kit

RE: nRF52 Thingy with power profile kit

Sunil vignesh — Thu, 26 Mar 2020 10:14:48 GMT

Ok Simonr, i will create new one

RE: nRF52 Thingy with power profile kit

Simonr — Thu, 26 Mar 2020 10:08:43 GMT

Hi Sunil

Please create a new ticket, as we've strayed quite far away from the original topic of this ticket. We strive to keep each ticket to one subject each and would prefer it if you made a new ticket when you have a question or problem with a different topic. This also makes it easier for people that have the same questions/issues in the future to find answers.

Best regards,

Simon

RE: nRF52 Thingy with power profile kit

Sunil vignesh — Thu, 26 Mar 2020 09:51:14 GMT

To perform a Single Button configuration like

One click (BUTTON_RELEASE)

Double Click (BUTTON_RELEASE)

Button Press for 3 seconds

Button Press for 7 seconds.

all these configuration should apply for only one BUTTON

if this is case which one is better

app_button.c or bsp.c

2. how do i change the wake up button action.

i.e - by default while the system off state . when the button is pressed the system wake up. instead of that i need the

wake up action to be change it to BUTTON _RELEASE .

3. or wake up is to be done after the 3seconds of long press of a button.

RE: nRF52 Thingy with power profile kit

Sunil vignesh — Tue, 24 Mar 2020 13:40:40 GMT

Thank you simon, i'll refer this example

RE: nRF52 Thingy with power profile kit

Simonr — Tue, 24 Mar 2020 10:09:40 GMT

Hi Sunil

When an application is in the _WFE(); state, it is in system ON low power mode.

1. When the device is in system OFF mode you need to set the wake-up conditions before you go into system OFF mode. By default, the SDK examples set the press of a button as the wake-up source, but this can be set to be, for example a timer from an external MCU or similar.

2. If you want to enter sleep mode System ON, you can call the nrf_pwr_mgmt_run() function.

3 & 4. You can check out our RTC example for how to set up a counter and implement that in your sleep function.

Best regards,

Simon

RE: nRF52 Thingy with power profile kit

Sunil vignesh — Tue, 24 Mar 2020 09:08:18 GMT

Hi Simonr

RE: nRF52 Thingy with power profile kit

Sunil vignesh — Mon, 23 Mar 2020 17:36:34 GMT

Hi Simonr,

Let me take an example of BLE_UART code

there

i found nrf_pwr_mgnt_init(); and nrf_pwr_mgmt_run();

ret_code_t nrf_pwr_mgmt_init(void)
{
    NRF_LOG_INFO("Init");

    m_shutdown_started = false;
    nrf_mtx_init(&m_sysoff_mtx);
    nrf_section_iter_init(&m_handlers_iter, &pwr_mgmt_data);

    PWR_MGMT_SLEEP_INIT();
    PWR_MGMT_DEBUG_PINS_INIT();
    PWR_MGMT_STANDBY_TIMEOUT_INIT();
    PWR_MGMT_CPU_USAGE_MONITOR_INIT();

    return PWR_MGMT_TIMER_CREATE();
}

void nrf_pwr_mgmt_run(void)
{
    PWR_MGMT_FPU_SLEEP_PREPARE();
    PWR_MGMT_SLEEP_LOCK_ACQUIRE();
    PWR_MGMT_CPU_USAGE_MONITOR_SECTION_ENTER();
    PWR_MGMT_DEBUG_PIN_SET();

    // Wait for an event.
#ifdef SOFTDEVICE_PRESENT
    if (nrf_sdh_is_enabled())
    {
        ret_code_t ret_code = sd_app_evt_wait();
        ASSERT((ret_code == NRF_SUCCESS) || (ret_code == NRF_ERROR_SOFTDEVICE_NOT_ENABLED));
        UNUSED_VARIABLE(ret_code);
    }
    else
#endif // SOFTDEVICE_PRESENT
    {
        // Wait for an event.
        __WFE();
        // Clear the internal event register.
        __SEV();
        __WFE();
    }

    PWR_MGMT_DEBUG_PIN_CLEAR();
    PWR_MGMT_CPU_USAGE_MONITOR_SECTION_EXIT();
    PWR_MGMT_SLEEP_LOCK_RELEASE();
}

these function will work like "SLEEP MODE" or system is alive with low power

i need some clarification about

// Wait for an event.
        __WFE();
        // Clear the internal event register.
        __SEV();
        __WFE();

and in code there is sleep mode enter, where it enable the wakeup button and doing system_off

static void sleep_mode_enter(void)
{
    uint32_t err_code = bsp_indication_set(BSP_INDICATE_IDLE);
    APP_ERROR_CHECK(err_code);

    // Prepare wakeup buttons.
    err_code = bsp_btn_ble_sleep_mode_prepare();
    APP_ERROR_CHECK(err_code);

    // Go to system-off mode (this function will not return; wakeup will cause a reset).
    err_code = sd_power_system_off();
    APP_ERROR_CHECK(err_code);
}

1. This is the case. entire device get into system_off and while pressing button only it will wakeup . or by analog wake up source . isn't it right?

2. my custom application need to enter sleep mode rather than enter into system_off.

3. I want to do counter operation to wakeup the device and also enter into sleep mode.

is there any example related to that.

4. is there any example related to wakeup with timer?

RE: nRF52 Thingy with power profile kit

Simonr — Mon, 23 Mar 2020 11:08:09 GMT

Hi Sunil

System OFF means that the device is turned off, and nothing at all is running, which means it needs an external source to awaken the chip again. It will not wake up by a timer when it is in system OFF.

Sleep mode is a more general term for when the nRF52 is in an idle mode, either system ON or OFF. You can read more on System ON and OFF mode in section 18.2 and 18.3 of the PS.

Best regards,

Simon

RE: nRF52 Thingy with power profile kit

Sunil vignesh — Mon, 23 Mar 2020 02:21:04 GMT

i have a question regarding SLEEP mode

What is SYSTEM OFF and SLEEP MODE

any difference. what is the power consumption of the nrf52 in these mode

if device in SYSTEM OFF . will it wake up with timer function

RE: nRF52 Thingy with power profile kit

Simonr — Fri, 20 Mar 2020 11:46:20 GMT

If you set the power select switch to Reg the onboard voltage regulator will be used as power source. This regulator is supplied by the USB power supply on the PPK and can be adjusted between 1.8-3.6V through the Power Profiler app.

Best regards,

Simon

RE: nRF52 Thingy with power profile kit

Sunil vignesh — Fri, 20 Mar 2020 09:45:13 GMT

Ok I have a doubt that in pin P16 external DUT connection

will be

Power source of external DUT

taken from the P16 pin . and the supply for the board will be from P22 pin.

and select power source switch as External.

If i select Power source as "Reg"

The voltage can be controlled from the software?

RE: nRF52 Thingy with power profile kit

Simonr — Fri, 20 Mar 2020 08:50:36 GMT

Please see the attached picture. Note that the external supply voltage should not exceed 3.6V, as this is likely to damage the PPK. If your battery provides more than this, do not use it directly on the PPK.

Best regards,

Simon

RE: nRF52 Thingy with power profile kit

Sunil vignesh — Fri, 20 Mar 2020 07:03:18 GMT

Hi Simonr,

yes, i have nrf52 DK

can you provide me circuit diagram to connect the Thingy to ppk board.

taking series connection of battery and given to the ppk will it work

will this connection works.?

RE: nRF52 Thingy with power profile kit

Simonr — Thu, 19 Mar 2020 11:28:47 GMT

Hi Sunil

You should be able to measure the current consumption of the Thingy by using the Thingy as an external DUT. You will need an NRF52 DK as a debugger to communicate with the power profiler app on nRFConnect.

Please check out section 6.5 in the PPK user guide.

Best regards,

Simon

RE: nRF52 Thingy with power profile kit

Sunil vignesh — Thu, 19 Mar 2020 09:36:47 GMT

Go it. Hardware not boot properly. now the PPK is working fine. do you now

How to connect the thingy to power profile kit

And also i have one more external device with battery . i want to calculate the how much current taken by the device from that battery

battery volt (2.8 V - 4.2V)

Device operating volt (3V)

RE: nRF52 Thingy with power profile kit

Sunil vignesh — Thu, 19 Mar 2020 09:24:09 GMT

Yes, I have done as per user guide. and in nrf connect, power profiler have latest version 2.3.1.

By default while power on the DK. if PPK connected with DK. then LED2 of PPK should ON

in my case that is false it's not getting ON

RE: nRF52 Thingy with power profile kit

wlgrd — Thu, 19 Mar 2020 09:16:35 GMT

Connect the PPK as per the user guide. Then start the software from nRF Connect, and see that the firmware is verified. If it is not, you will be prompted to update the board with the latest firmware.

Also, make sure the switch controlling the power source is in the correct position as per your setup.

RE: nRF52 Thingy with power profile kit

Sunil vignesh — Thu, 19 Mar 2020 09:00:36 GMT

currently i got another issue. the power profile nrf6707 hardware LED2 not get ON.

How to i check the hardware is working or not