project freezes with nrf52840 depending the revisionhttps://devzone.nordicsemi.com/f/nordic-q-a/83477/project-freezes-with-nrf52840-depending-the-revisionHi, My project (under embedded studio )works if running on a chip with the register FICR INFO.VARIANT = 0x41414330 but freeze on a chip with the register FICR INFO.VARIANT = 0x41414430 it freezes on nrf_sdh_enable_request() I give some linesen-USTelligent Community 13Mon, 10 Jan 2022 09:32:11 GMTRE: project freezes with nrf52840 depending the revisionhttps://devzone.nordicsemi.com/thread/346863?ContentTypeID=1Mon, 10 Jan 2022 09:32:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2a48be53-53d9-49ae-bb72-141fa952939fEinar Thorsrud<p>Hi,</p> <p>Good to hear you found the issue.</p> <p>0x41414430 maps to AAD0, which is revision 2 (build code D). This is compatible with&nbsp;SDK 17.0.2, so that is no problem.</p> <p>(If you migrate to revision 3 at some point, this is not compatible with SDK 17.0.2 though, and requires SDK 17.1.0 or later).</p><div style="clear:both;"></div>RE: project freezes with nrf52840 depending the revisionhttps://devzone.nordicsemi.com/thread/346803?ContentTypeID=1Sun, 09 Jan 2022 12:22:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f6b2b5d2-b6b0-4fad-8fd9-58f2f4ecce4bjrt<p>I missed that the boards have another difference : there is no external LF crystal with the one revision 0x41414430. So configuring&nbsp; the sdk_config.h&nbsp;</p> <p>#define NRF_SDH_CLOCK_LF_SRC 0</p> <p>#define NRF_SDH_CLOCK_LF_RC_CTIV 16</p> <p>#define NRF_SDH_CLOCK_LF_ACCURACY 0&nbsp;&nbsp;&nbsp;</p> <p>solve the problem,,, a priori there is non problem using same sdk and sofdevice with this 2 soc revisions, isn&#39;t it?</p><div style="clear:both;"></div>