fds in sdk14

[Stas]

I'm trying to migrate my old app based on buttonless app sdk13 to buttonless app sdk14. I solved issuie according to migrate guide remove chunk things and etc. My app works well until I add fds_init function in my main.c file.
Here's my fds_test_init function

ret_code_t fds_test_init (void)
{
		
		ret_code_t ret = fds_register(fds_evt_handler);
		if (ret != FDS_SUCCESS)
		{
					return ret;
		}
		ret = fds_init();
		if (ret != FDS_SUCCESS)
		{
				return ret;
		}
		return NRF_SUCCESS;
		}

After I comment calling of that function in my main.c the app starts work. After comment again not working. I see nothing in RTT terminal

The same code works well with sdk13

[Stas]

I've tried to get ret_code using function SEGGER_RTT_printf(0, "%d", ret_code); but I get nothing in terminal if use fds_init function even if I to write any message before calling fds_init. Also I've tried to get err_code via debugging (keil), I set breakpoint next to ret_code_t ret = fds_register(fds_evt_handler); but in watch window most of the time err_code's value . screen is there any guide how to get ret_code?

[Stas]

I forgat to change optimization level of debugging to level 0. So now I can see that ret either returned by fds_register or fds_init functions is 0.

[RichieJH]

If it's returning 0 that means success, so this is not where your issue is. Be sure to fully erase the chip when re-programming since old FDS data is maintained and can cause issues if you changing your FDS implementation.

[Stas]

Yes. I do all the time by that way (eraseall, program softdevice, program app). There were not any problems with sdk13, but now... There's main function

int main(void)
{
    bool erase_bonds;
		uint32_t err_code;
    // Initialize.
    log_init();
		SEGGER_RTT_printf(0, "start app\n\r");

		m_clock_timer_init();
		pwm_init_corr();
		pwm_init_rgb();
	
		HX711_init();
		
		err_code = fds_test_init();
		APP_ERROR_CHECK(err_code);
		
	
	//fds_init_values();
	//fds_get_init_data();
		//test_expired();
		//fds_clear();  
	//	rgb_set(50, 50, 50, 3, 1500);
    timers_init();
    power_management_init();
    buttons_leds_init(&erase_bonds);
    ble_stack_init();
    peer_manager_init();
    gap_params_init();
    gatt_init();
    advertising_init();
    services_init();
    conn_params_init();

    //NRF_LOG_INFO("Start scale driver app\n");

    // Start execution.
    application_timers_start();
    advertising_start(erase_bonds);

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

If I comment these raws:

//err_code = fds_test_init();
    //		APP_ERROR_CHECK(err_code);

app starts work

[RichieJH]

Check your fds_evt_handler for error codes for "FDS_EVT_INIT".