https://devzone.nordicsemi.com/f/nordic-q-a/15210/nrf51-file-operationHello, I wants to store data in file or store data as non volatile . I can&#39;t found any file related function. Can any one help me how to store data as non volatile(Permanent). Regards, Rajneeshen-USTelligent Community 13Tue, 19 Jul 2016 13:58:47 GMThttps://devzone.nordicsemi.com/thread/58076?ContentTypeID=1Tue, 19 Jul 2016 13:58:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7eb9a3bb-7c0e-4723-b075-9ed04afe6fafHung Bui<p>Hi Rajneesh,</p> <p>If you don&#39;t use the softdevice, you can access the flash directly using NVMC registers. You can have a look at the flashwrite example in SDK v11.</p> <p>If you use softdevice (which blocks access to NVMC) and if you simply want to store data to flash you can use the sd_flash_write() and sd_flash_page_erase() to write and erase. If you want to read you can read the address directly.</p> <p>If you use softdevice and want to use file system, you can try to use the fds library. You can have a look at <a href="https://devzone.nordicsemi.com/question/72107/flash-data-storage/">this example</a> and <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v11.0.0/lib_fds.html?cp=6_0_0_3_30">this documentation</a>.</p><div style="clear:both;"></div>