https://devzone.nordicsemi.com/f/nordic-q-a/3567/s120-on-dongle-pca1000I&#39;m trying to write a central BLE with the dongle(PCA1000) using s120. I programmed s120 sd ver 1.0 the same way as the s110 with the nrFGO ver 1.17. However i keep getting error during program execution. I&#39;m not calling sd calls yet in my app. Iten-USTelligent Community 13Fri, 26 Sep 2014 13:46:13 GMThttps://devzone.nordicsemi.com/thread/12936?ContentTypeID=1Fri, 26 Sep 2014 13:46:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:62414873-6f27-4638-bc46-0d23e2c024aaStefan Birnir Sverrisson<p>Hi Jon</p> <p>My guess is that FLASH and/or RAM settings are not correct.</p> <p>In the ble_app_hrs gcc project you will see that ble_app_hrs.Makefile has by default</p> <pre><code>USE_SOFTDEVICE := S110 </code></pre> <p>setting this to</p> <pre><code>USE_SOFTDEVICE := S120 </code></pre> <p>will not work because there is no S120 option defined in the Makefile.common file. So in order to make this work and actually use the gcc_nrf51_s120_xxaa.ld setting, you have to define a S120 option in the Makefile.common file.</p> <p>Another think that I see is that in the S120 KEIL examples in the SDK define FLASH length is 0x27000, but not 0x28000 as defined in the gcc_nrf51_s120_xxaa.ld file. So, try to change the FLASH length to 0x27000 in the gcc_nrf51_s120_xxaa.ld file to see if that makes any difference</p><div style="clear:both;"></div>