https://devzone.nordicsemi.com/f/nordic-q-a/120037/using-cmsis-header-files-for-a-bare-metal-programi am writing an absolutely minimal &quot;bare-metal&quot; application for the nRF54L05 -- one that doesn&#39;t use the zephyr kernel or drivers.... all i really need at this time are the CMSIS header files specific to this SOC.... looking through the SDK, i finden-USTelligent Community 13Sat, 22 Mar 2025 19:11:07 GMThttps://devzone.nordicsemi.com/thread/528500?ContentTypeID=1Sat, 22 Mar 2025 19:11:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b095fd1b-433b-4e5b-aebe-e8f349f40737Nguyen Hoan Hoang<p>non zephyr for nRF54 is here :&nbsp;<a href="https://github.com/IOsonata/IOsonata/tree/master/ARM/Nordic">https://github.com/IOsonata/IOsonata/tree/master/ARM/Nordic</a></p> <p><a href="https://github.com/IOsonata/IOsonata/tree/master/ARM/Nordic"><img style="max-height:240px;max-width:320px;" alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/6254.UartTest_5F00_nRF54L15.png" /></a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/528434?ContentTypeID=1Fri, 21 Mar 2025 14:56:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b1443782-56ee-45aa-857f-d3dcd20e0495Vidar Berg<p>Hello,</p> <p>We currently don&#39;t have any projects set up for the nRF54L outside of Zephyr/nRF Connect SDK but I think it should be fairly straight forward to set up a bare metal one to only toggle a LED. Startup files and register&nbsp;definitions are included in the MDK package which can be downloaded at the product page here:&nbsp;<a href="https://github.com/NordicSemiconductor/nrfx/tree/master/mdk">https://github.com/NordicSemiconductor/nrfx/tree/master/mdk</a>, or from the nrfx repo at&nbsp;<a href="https://github.com/NordicSemiconductor/nrfx/tree/master">https://github.com/NordicSemiconductor/nrfx/tree/master</a>.</p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>