ble_app_uart fail about 180seconds

[nanbuwks]

Hi,

I run the "ble_app_uart" from sample program and leave it as it is.
The program ends in NRF_BREAKPOINT_COND with "Fatal error" after a while. 
It is displayed as a screen shot as long as 180 seconds or less.

Environment:

• SDK 15.2.0
• SEGGER Embedded Studio Release 4.10a Build 2018110203.37618 Linux x64
• Raitac MDBT-50Q DB (nRF52840)
  www.raytac.com/.../ins.php

Is there a way to avoid the error?

[AndreasF]

Hi.

This happends because after 180 seconds the device should go to sleep.

When the device is attempting to go to sleep, it calls sd_power_system_off(); in line 332 in main.c, this function call is not allowed while debugging.

To avoid the error, simply don't call this function while debugging.

Best regards,

Andreas

[nanbuwks]

Hi , Thank you for the reply.

Certainly, the description of sleep was in main.c. I also understood that entering sleep during debug will result in an error.

I did not want to go to sleep, so I did the following.

(cf., https://devzone.nordicsemi.com/f/nordic-q-a/10465/advertising-forever)

With this, a long time advertisement has been realized.

Thank you.

static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
{
    uint32_t err_code;

    switch (ble_adv_evt)
    {
        case BLE_ADV_EVT_FAST:
            err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
            APP_ERROR_CHECK(err_code);
            break;
        case BLE_ADV_EVT_IDLE:
            // sleep_mode_enter();                                                // ( sleep after 180 sec )
            err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);  // modify for infinity advertising
            APP_ERROR_CHECK(err_code);
            break;
        default:
            break;
    }
}