Problem with pstorage_access_status_get(uint32_t *count) function

[bangEE]

hi, i made ble app with nRF51822 (s110), sdk 6.1.0

and i put this code after a pstorage_store() function to wait finishing of this function.

uint32_t err_code, count;
do {
    app_sched_execute();
    err_code = pstorage_access_status_get(&count);
    APP_ERROR_CHECK(err_code);
} while(count != 0);

but, my code is stuck in this loop. also I added scheduler_init function.

now, i can't find out how can fix this problem. please help. thanks:)

--- Edit ---

• on_ble_evt:

    case BLE_GAP_EVT_DISCONNECTED:
        dfu_state = (((*(volatile unsigned char *)(get_block_db() + FLASH_BLOCK_DFU_OFFSET)) == APP_DFU) ? false : true);
        m_conn_handle = BLE_CONN_HANDLE_INVALID;
        err_code = ble_store();
        APP_ERROR_CHECK(err_code);
        
        nrf_gpio_pin_set(LED_0);
        do {
            app_sched_execute();
            err_code = pstorage_access_status_get(&count);
            APP_ERROR_CHECK(err_code);
        } while (count != 0);
        nrf_gpio_pin_clear(LED_0);
        application_timers_stop();
    
        if (!dfu_state) {
            advertising_start();
        } else {
            err_code = sd_power_gpregret_clr(0xFF);
            APP_ERROR_CHECK(err_code);
            err_code = sd_power_gpregret_set(BOOTLOADER_DFU_START);
            APP_ERROR_CHECK(err_code);
            sd_nvic_SystemReset();
        }
        break;
  

• ble_store() and ble_clear()

    uint32_t ble_store(void)
    {
        ble_clear();
        uint32_t err_code;
    
        err_code = pstorage_store(&m_flash_handle,
                              (uint8_t *)m_block_db,
                              FLASH_BLOCK_SIZE * sizeof(uint8_t),
                              0);
        return err_code; 
    }
  
  
    uint32_t ble_clear(void)
    {
        return pstorage_clear(&m_flash_handle, (FLASH_BLOCK_SIZE * sizeof(uint8_t)));
    }
  

Thank you Nikita. This is my code before the loop.

first, clear pstorage.

second, store new value to pstorage.

third, wait finishing of the pstorage operation before advertising start.

Isn't this procedure correct?

[Nikita]

Show your code in main before this loop, how exactly do you perform initialization?

[Nikita]

Are you using scheduler in your app? Try to move this code in the main loop, maybe there is some troubles when you call app_sched_execute() inside shceduler event handler:

err_code = ble_store();
APP_ERROR_CHECK(err_code);

nrf_gpio_pin_set(LED_0);
do {
    app_sched_execute();
    err_code = pstorage_access_status_get(&count);
    APP_ERROR_CHECK(err_code);
} while (count != 0);
nrf_gpio_pin_clear(LED_0);
application_timers_stop();

if (!dfu_state) {
    advertising_start();
} else {
    err_code = sd_power_gpregret_clr(0xFF);
    APP_ERROR_CHECK(err_code);
    err_code = sd_power_gpregret_set(BOOTLOADER_DFU_START);
    APP_ERROR_CHECK(err_code);
    sd_nvic_SystemReset();
}

[bangEE]

i just move while loop(including app_sched_execute()) in main loop, and it works!

thanks Nikita :)