https://devzone.nordicsemi.com/f/nordic-q-a/59522/need-crypto-cfb-example-code-explanationHi Team, Need explanation on some of the macros and section creations which are part of examples codes. 1. NRF_SECTION_DEF(test_case_data, test_case_t); where &quot; test_case_data &quot; is initialized. In run-time we are directly getting the data from thisen-USTelligent Community 13Mon, 30 Mar 2020 08:59:17 GMThttps://devzone.nordicsemi.com/thread/242323?ContentTypeID=1Mon, 30 Mar 2020 08:59:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:59cbc736-4dfb-4d98-8042-777dcf9b84b9Amanda Hsieh<p>Hi,&nbsp;</p> [quote user=""]Similar way we have found some of the macros in other examples as well. Only thing is how it is initialized.[/quote] <p><a title="NRF_SECTION_DEF" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/group__section__vars.html?cp=7_1_6_11_15_0#gabc76026f7271296522006d8600845b4a">NRF_SECTION_DEF</a>&nbsp;is&nbsp;<span>for creating a section.</span>&nbsp;Please see the <a title="Experimental: Section variables" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/lib_section_vars.html?cp=7_1_3_58">Section variables</a>&nbsp;for the detail.&nbsp;</p> [quote user=""]How this &quot;p_backend<span>&nbsp;&quot; is initialized with predefined crypto data.</span>[/quote] <p>&nbsp;Please see the&nbsp;<a title="Using section variables" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/lib_section_vars.html?cp=7_1_3_58_2#lib_section_vars_usage_module_usage">Using section variables</a>&nbsp;section.&nbsp;</p> <p>-Amanda H.&nbsp;</p><div style="clear:both;"></div>