Enable Readback protection with ST-Link failhttps://devzone.nordicsemi.com/f/nordic-q-a/52258/enable-readback-protection-with-st-link-failHi, my device is NRF51822 and i&#39;m trying to enable Readback protection. In &#39;main.c&#39; file i have added this code line: const uint32_t UICR_RBPCONF __attribute__((used,at(0x10001004))) = 0xFFFF0000; //NRF51 When i Download code using nrf52DK (PCA10040en-USTelligent Community 13Tue, 17 Sep 2019 19:35:08 GMTRE: Enable Readback protection with ST-Link failhttps://devzone.nordicsemi.com/thread/210228?ContentTypeID=1Tue, 17 Sep 2019 19:35:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dac50f67-301b-48d6-8fb5-83f790e62e05Kenneth<p>Don&#39;t have any experience with ST-Link, but have you looked at this page:</p> <p><a href="https://www.segger.com/products/debug-probes/j-link/models/other-j-links/st-link-on-board/">https://www.segger.com/products/debug-probes/j-link/models/other-j-links/st-link-on-board/</a>&nbsp;</p><div style="clear:both;"></div>