https://devzone.nordicsemi.com/f/nordic-q-a/21203/pstorage-request-block-idHi, Currently I&#39;m working on updating some code based op pstorage on the nRF51822 with SDK 10 an SD S110 (v8). Right know we&#39;re not using &quot;blocks&quot;. We&#39;re using pstorage_update(&amp;m_pstorage_handle, ...) directly on the handle obtained via pstorage_registeren-USTelligent Community 13Tue, 11 Apr 2017 10:27:59 GMThttps://devzone.nordicsemi.com/thread/82980?ContentTypeID=1Tue, 11 Apr 2017 10:27:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f5fbb8e5-a3ec-4092-a7a7-c1feb75ed6a9Petter Myhre<p>I don&#39;t think that is necessary when only having one block.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/82981?ContentTypeID=1Tue, 11 Apr 2017 10:19:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:66dc2164-6774-41ff-a048-a4aa3b44b213Thomas<p>Alright, I understand. Thanks for clearing that up! Is it advised to use <code>pstorage_block_identifier_get()</code> when only using one block?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/82979?ContentTypeID=1Mon, 10 Apr 2017 10:29:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c8d4bdca-8f38-446d-9bee-03090149ed0dPetter Myhre<p>I think you are mixing up blocks with flash pages. There is no swap block, but there is a swap page.</p> <p>Have a look at pstorage_platform.h, the start and en addresses are defined there.</p> <p>It seems you have defined Pstorage to use 1 flash page, in addition to 1 swap page.</p> <p>The flash page is from 0x3B800, and the swap page is from 3BC00, and the bootloader is from 0x3C000.</p><div style="clear:both;"></div>