https://devzone.nordicsemi.com/f/nordic-q-a/17740/cmsis-pack-on-nrf52hi.. i&#39;m trying to use cmsis pack on nordic nrf52 with make command to get to cpu registers and have the folowing error: Compiling file: main.c In file included from ../../../main.c:5:0: ../../../../../../components/toolchain/cmsis/include/cmsis_armccen-USTelligent Community 13Wed, 16 Nov 2016 12:17:49 GMThttps://devzone.nordicsemi.com/thread/68291?ContentTypeID=1Wed, 16 Nov 2016 12:17:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d21bca21-6ba7-48ef-ba96-88615b0bf2a3schef<p>Use</p> <pre><code>#include &quot;nrf.h&quot; </code></pre> <p>instead of</p> <pre><code>#include &quot;cmsis_armgcc.h&quot; </code></pre><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/68290?ContentTypeID=1Wed, 16 Nov 2016 12:16:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c75769e4-7ac8-4c4d-a68d-1fa5570b33afschef<p>Yes.. i had to include one of #include &quot;nrf_nvic.h&quot; or #include &quot;nrf.h&quot; to be able to use them.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/68289?ContentTypeID=1Tue, 15 Nov 2016 10:31:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4b6ce0e3-4e1c-4ba0-a72c-d4d4021f99berun_ar<p>__get_CONTROL() is already defined in<br /> components/toolchain/cmsis/include/cmsis_armcc.h</p><div style="clear:both;"></div>