https://devzone.nordicsemi.com/f/nordic-q-a/9870/nrf51-hardware-revision-2-with-softdevice-s130Hello everybody, we want to extend out Central device to dual role (Central + Peripheral). I just finished the migration to SoftDevice S130 and was about to migrate the drivers and libraries to SDK 9.0.0, as specified in the compatibility matrix. en-USTelligent Community 13Fri, 23 Oct 2015 10:29:18 GMThttps://devzone.nordicsemi.com/thread/36615?ContentTypeID=1Fri, 23 Oct 2015 10:29:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7879ed14-79fc-4fe1-b9e0-d6192fa04a98MartinBL<p>It is the same answer as above. S130 V1.0.0 is only tested with SDK V8.x.0 and V9.0.0. The S130 V0.5 alpha is tested with SDK 7.x.x, but then again, it is an alpha release. So again, you can try, but at your own discretion.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/36614?ContentTypeID=1Fri, 23 Oct 2015 10:15:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7700c52f-b278-45e3-80a1-9dc2ac07f6e4puz_md<p>Hi Martin, thanks for the link. But one part of my question was not answered: Is it possible to use an outdated SDK (drivers and libraries) with a more recent SoftDevice? Or have the interface definitions of the SoftDevices changed over time in a way that does not cause an error at compile time?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/36613?ContentTypeID=1Fri, 23 Oct 2015 08:29:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c8436937-d880-4e7c-9ddf-5c443f2e0bacMartinBL<p>Hi.</p> <p>Please read <a href="https://devzone.nordicsemi.com/question/51868/nrf51-51822-ic-revision-1-qfaba0-with-sdk-810/">this</a>. The post discuss a different IC revision, SDK and Softdevice, but the final answer is the same.</p><div style="clear:both;"></div>