Assistance with FDS

Hi, I am testing github.com/.../nRF52-fds-example

I am on nrf52832 with sdk 12.2.0. I can't seem to make it work. What i have done:

  • Separated FDS stuff to separate file
  • Exposed the functions which are used by main file
  • Added files to my Makefile

And now i'm testing it in main.c with this code:

  c = SEGGER_RTT_WaitKey(); // will block until data is available
  if(c == 'r'){
    SEGGER_RTT_WriteString(0, "Resetting..\n");
    nrf_delay_ms(1000);
    sd_nvic_SystemReset();
  } 
  else if(c == '1')
  {
    SEGGER_RTT_printf(0, "1\n");
    err_code = fds_test_init();
    APP_ERROR_CHECK(err_code);
    SEGGER_RTT_printf(0, "err_code = %08x\n", err_code);
  }
  else if(c == '2')
  {
    SEGGER_RTT_printf(0, "2\n");
    err_code = fds_test_find_and_delete();
    APP_ERROR_CHECK(err_code);
    SEGGER_RTT_printf(0, "err_code = %08x\n", err_code);
  }
  else if(c == '3')
  {
    SEGGER_RTT_printf(0, "3\n");
    err_code =fds_test_write();
    APP_ERROR_CHECK(err_code);
    SEGGER_RTT_printf(0, "err_code = %08x\n", err_code);
  }
  else if(c == '4')
  {
    SEGGER_RTT_printf(0, "4\n");
    err_code = fds_read();
    APP_ERROR_CHECK(err_code);
    SEGGER_RTT_printf(0, "err_code = %08x\n", err_code);
  }

All functions return 0 as a result. But fds_read() does not find anything. Suggestions?