https://devzone.nordicsemi.com/f/nordic-q-a/3771/storing-a-big-array-in-the-flash-memoryHi, i need to save an array of 50 kB on the nrf51822 flash. I only need to read the data stored in the array. I come from the PIC micro world where i simply need to initialize the array as &quot; const &quot; and the compiler would take care of storing the arrayen-USTelligent Community 13Thu, 25 Sep 2014 11:47:40 GMThttps://devzone.nordicsemi.com/thread/13653?ContentTypeID=1Thu, 25 Sep 2014 11:47:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cc1282b3-73a9-4089-9822-dc9c07511053Petter Myhre<p>If you only need to read you can use const to store a array in flash. Remember to initalize it when you declare it, and that it can be optimized away if it is not used.</p> <p>If you need to write it depends on if you are using a Softdevice(S1xx, S210, S310) or not.</p> <p>If not, you have two options. You can access the Non-Volatile Memorty Controller (NVMC) registers directly, or you can use the NVMC driver. It is named nrf_nvmc in the SDK, and you can find its documentation <a href="https://devzone.nordicsemi.com/documentation/nrf51/6.1.0/s110/html/a00672.html">here</a>.</p> <p>If you are using a SoftDevice you should use Persistent Storage Manager. It is named pstorage in the SDK, and you can find its documentation <a href="https://devzone.nordicsemi.com/documentation/nrf51/6.1.0/s110/html/a00018.html">here</a>.</p> <p>Edit: added const possibility.</p><div style="clear:both;"></div>